| ASIA OPTICAL CO., INC. Patent applications |
| Patent application number | Title | Published |
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| 20120120648 | Light Source Module of Projector - A light source module of a projector includes a beam splitter, a red light source, a blue light source, and a blue light source. The beam splitter has a first reflection side, on which a first splitter film is provided, and a second reflection side, on which a second splitter film is provided. An angle between a normal line of the first reflection side, and a normal line of the second reflection side, is in a range between 165 degrees and 180 degrees. Both the first splitter film and the second splitter film permit red rays to pass therethrough. The red light source is separated from the blue and green light sources to obtain a better thermal dissipation. | 05-17-2012 |
| 20120113407 | AUTOMATIC LASER RANGEFINDER AND METHOD OF AUTOMATICALLY ACTIVATING THE LASER RANGEFINDER TO MEASURE DISTANCE - The present invention provides a laser rangefinder and a method of activating the laser rangefinder to measure distance. The laser rangefinder has a first sensing to sense whether the user is aiming the laser rangefinder at a target and a second sensing device to sense an acceleration of the laser rangefinder and the acceleration has to be smaller than a preset value. The laser rangefinder will be automatically activated to measure distance when both of the first sensing device and the second device are checked. | 05-10-2012 |
| 20120056369 | PAPER CONTROLLER FOR IMAGE FORMING APPARATUS - A paper controller of an image forming apparatus includes a machine base having a main passage and a bypass therein. Three conveying rollers are pivoted on the machine to send papers going through the main passage and the bypass respectively. One conveying roller adjacent to the paper outlet has a driving portion and a driving-free portion, which is a flat face on the circumference, that the driving portion touches a driven roller to make it rotating and the driving-free portion will not touch the driven roller when the conveying roller is rotating that a gap is formed between the driving-free portion and the driven roller to prevent the paper from jamming at the paper outlet. | 03-08-2012 |
| 20120008109 | AUTOMATIC FOCUSING PROJECTING DEVICE AND METHOD OF AUTOMATIC FOCUSING - An automatic focusing projecting device includes an image light source, a first image lens, an image sensor, a second image lens, a memory, a microprocessor, and at least a driving device. The image light source projects an image onto a screen through the first image lens. The image sensor senses the image on the screen through the second image lens. The microprocessor calculates sensed signals from the image sensor to get a definition of the image, and then saves the definition in the memory. The microprocessor compares the definitions when the first image lens and the second image lens are moved to different positions to move the first image lens and the second image lens and locate the first image lens and the second image lens at their focusing positions respectively where the definitions of the image are the greatest. | 01-12-2012 |
| 20110199682 | BEAM COMBINER - The present invention provides a small and light beam combiner to be mounted in a micro-projector. The combiner includes a splitting film, a polarization rotator, and an edge filter film. The polarization rotator is next to the splitting film to rotate a polarization angle of a polarized light. An angle between the splitting film and the polarization rotator is about 45 degrees. The edge filter film is coated on the polarization rotator that the polarization rotator is between the splitting film and the edge filter film. | 08-18-2011 |
| 20110194192 | Superzoom Lenses - Superzoom lenses are disclosed. The superzoom lenses include, in order from an object side to an image side on an optical axis, a first lens group, a second lens group, an aperture, a third lens group, and a fourth lens group. The first lens group has positive optical power. The second lens group has negative optical power and is consisted of a convex lens and a concave lens. The third lens group has positive optical power. The fourth lens group has positive optical power. The superzoom lenses satisfy the following relationship when the superzoom lenses are collapsed: | 08-11-2011 |
| 20110164241 | Rangefinder - A rangefinder. A main body includes a first end and a second end opposite to the first end. The second end includes at least one guide bar. A receiving lens is connected to the first end of the main body. A first adjusting wheel and a second adjusting wheel are rotatably connected to the second end of the main body. A movable board is movably fit on the guide bar of the second end of the main body and is disposed between the first and second adjusting wheels. A receiving member is connected to the movable board, receiving light beams received by the receiving lens. The movable board is moved by rotation of the first and second adjusting wheels, driving the receiving member to move on an optical axis. | 07-07-2011 |
| 20110150455 | OPTICAL DEVICE AND METHOD OF MOVING LENS THEREOF - An optical device includes a lens, a horizontal transmission module, a vertical transmission module, a horizontal driving unit, a vertical driving unit, a horizontal orientation detector, a vertical orientation detector, a user interface, and a control unit. The horizontal driving unit moves the lens horizontally via the horizontal transmission module. The horizontal orientation detector can detect horizontal movement of the lens and emit a horizontal sensing signal. The vertical driving unit can move the lens vertically via the vertical transmission module. The vertical orientation detector can detect vertical movement of the lens and emit a vertical sensing signal. The user interface can generate an operation signal. The control unit can control movement of the lens according to the operation signal, the horizontal sensing signal, and the vertical sensing signal. | 06-23-2011 |
| 20110141588 | OPTICAL DEVICE AND LENS COLLISION PREVENTING METHOD THEREOF - An optical device includes a lens, a driving unit, a control unit, a frame, and a boundary detecting unit. The lens has a metal barrel. The control unit is electrically connected to the driving unit, to control a movement thereof. The frame has an inner wall. The frame defines a lens movement area. The boundary detecting unit is disposed on the inner wall. The boundary detecting unit has a plurality of sensors disposed on the inner wall, and surrounds the lens equidistantly. When the metal tube approaches one of the sensors, a capacitance of the sensor will be changed, and the IC sends a position detection signal to the control unit, according to the capacitance variation. The control unit controls the movement of the lens, according to the position detection signal. | 06-16-2011 |
| 20110134309 | Method to Evaluate Contrast Value for an Image and Applications Thereof - An image contrast evaluation method is disclosed. First, focusing is performed based on the contrast value of an image rendered by a lens on optical sensors, wherein the calculation of the contrast value comprises: selecting an area of the image, calculating the absolute value of brightness difference between each neighboring pixel, and selecting a specific value there from as the contrast value of the image based on a distribution of the calculated absolute values of the brightness differences. | 06-09-2011 |
| 20110119373 | SERVICE WORKFLOW GENERATION APPARATUS AND METHOD - A service workflow generation apparatus, having a quality of service (QoS) monitor for obtaining a plurality of real time QoS values respectively corresponding to a plurality of service elements on the web. A QoS calculation module generates a plurality of possible service workflows composed of the service elements and a plurality of overall QoS values of the possible service workflows based on the real time QoS values by using a Modified Heuristic Algorithm. A service workflow selection module dynamically selects a service workflow from the possible service workflows according to the overall QoS value. | 05-19-2011 |
| 20110102872 | POLYGON MIRROR DEVICE WITH DISCONTINUOUS ANGLES OF REFLECTIONS - Disclosed is a polygon mirror device with discontinuous angles of reflections discontinuously to reflect a light beam from a light source with at least one angle. The polygon mirror device with discontinuous angles of reflections comprises a motor connecting with a base to rotate the base around a rotation axis. The base has an axial end surface to form a reference plane. The reference plane is approximately perpendicular to the rotation axis. A plurality of reflectors is positioned on the reference plane circularly around the rotation axis. The reflectors tilt relative to the reference plane with respective angles to form respective included angles. When the base is rotated around the rotation axis, at least one of the reflectors is moved to a reflecting location for receiving the light beam from the light source and reflects the light beam with an angle of reflection to form an image at a specific place. | 05-05-2011 |
| 20110102785 | REFLEX SIGHT - A reflex sight is provided, including a first lens module, a first light source, and a second light source. The first light source projects a first reticle image to the first lens module, and the first lens module reflects the first reticle image to a viewer. When the first light source is inactive, the second light source projects a second reticle image to the first lens module, and the first lens module reflects the second reticle image to the viewer. | 05-05-2011 |
| 20110075235 | Optical Path Control Device - An optical path control device is provided, including a fixed reflective mirror fixed on a first position at a fixed angle for an incident light to be reflected thereon, and a rotatable reflective mirror driven by a driving device and rotated on a fixed axle. A surface of the rotatable reflective mirror is perpendicular to the fixed axle. The axle is disposed at a second position so that a rotating path of the rotatable reflective mirror passes through the incident light reflected on the fixed reflective mirror. A normal line of an incident point of the rotatable reflective mirror where the incident light enters, and a normal line of an incident point of the fixed reflective mirror where the incident light enters generates a predetermined included angle. | 03-31-2011 |
| 20110061286 | UNIVERSAL SCOPE MOUNT FOR FIREARM - A universal scope mount includes a housing and a pair of mounting assemblies. The housing has a chamber defined through front and rear ends thereof and having an inner contour conforming to an outer contour of a body of a scope or an accessory to be received therein, a channel downwardly exposed and extending parallel to the chamber and a pair of projections formed along respective opposite sides of the channel. The pair of mounting assemblies is used to respectively secure a front end portion and a rear end portion of the housing to the mount base of the firearm. Each mounting assembly includes a slider to be slidably received in the channel of the housing and supported by the projections of the housing, a mount member to be disposed between the housing and the mount base of the firearm, securing means to securely connect the mount member to the upper attachment surface of the mount base of the firearm, and fastening means to reliably assemble the housing, the slider and the mount member together. The slider has a cross-sectional contour substantially complementary to a cross-sectional contour of the channel of the housing. The mount member has an upper mating surface defining two grooves to receive corresponding projections of the housing therein and a bottom opening having a cross-sectional contour substantially complementary to a cross-sectional contour of the mount base of the firearm. | 03-17-2011 |
| 20110058264 | Lens Module of Scanner - A lens module of a scanner is provided, including a first lens with a positive diopter, a second lens with a negative diopter, a third lens with a positive diopter, and a fourth lens with a negative diopter. The first, second, third, and fourth lenses are sequentially arranged from an object end to an image end of the lens module, and at least one of the first and fourth lenses is an aspheric lens. The fourth lens has a focal length f | 03-10-2011 |
| 20110058263 | MICRO PRIME LENS SYSTEM - A micro prime lens system is provided. From an object side to an image side, the micro prime lens system sequentially includes a first lens, a second lens, a third lens and a fourth lens, which have a positive, a negative, a positive and a negative index of refraction, respectively. The third lens is an aspherical lens made of glass material and conforms to the following condition: 0.3| 03-10-2011 | |
| 20110058262 | Mini Fixed Focus Lens Module - A mini fixed focus lens module is provided. From an object end to an image end thereof, the mini fixed focus lens module sequentially includes a first lens, a second lens, a third lens and a fourth lens. The first lens has a positive diopter, the second lens has a negative diopter, the third lens has a positive diopter, the fourth lens has a negative diopter, a combined diopter of the second and third lenses is positive, and the mini fixed focus lens module satisfies the following formula: | 03-10-2011 |
| 20110058259 | Scanner Lens - A scanner lens includes a first lens, a second lens, and a third lens. The first lens is provided with a first focal length. The first, second, and third lenses are sequentially arranged from an object end to an imaging end and are respectively provided with a plus diopter, a minus diopter, and a plus diopter. At least one of the first, second, and third lenses comprises an aspheric lens. The ratio of the first focal length to a system focal length of the scanner lens ranges between 1 and 2. | 03-10-2011 |
| 20110052958 | BATTERY HOLDER AND ELECTRICAL DEVICE HAVING THEREOF - A battery holder is provided for supplying electrical power to a battery operated electrical device. The battery holder includes a main fixing frame, a spare fixing frame and a battery cover. The main fixing frame defines a first opening and a first battery-receiving cavity for receiving at least one main battery. The spare fixing frame is assembled onto the main fixing frame for closing the first opening of the main fixing frame. The spare fixing frame defines a second opening and a second battery-receiving cavity for receiving at least one spare battery that can be removed from the second battery-receiving cavity to the first battery-receiving cavity for replacing the main battery. A battery cover is assembled onto the spare fixing frame for closing the second opening of the spare fixing frame. | 03-03-2011 |
| 20110049241 | Barcode Scanner - A barcode scanner. A lens set receives a barcode image and includes a first plastic lens, a second plastic lens, a diaphragm, a third plastic lens, and a low-pass filter sequentially arranged along an optical axis of the lens set. The first and third plastic lenses comprise convex lenses. The second plastic lens comprises a concave lens. An imaging member is separated from the lens set by a predetermined distance. The low-pass filter is disposed between the third plastic lens and the imaging member. The barcode image received by the lens set is imaged on the imaging member. | 03-03-2011 |
| 20110049240 | Barcode Scanner - A barcode scanner. A lens set receives a barcode image and includes a first plastic lens, a second plastic lens, a third plastic lens, a diaphragm, and a low-pass filter sequentially arranged along an optical axis of the lens set. The first and third plastic lenses are convex lenses. The second plastic lens is a concave lens. An imaging member is separated from the lens set by a predetermined distance. The low-pass filter is disposed between the diaphragm and the imaging member. The barcode image received by the lens set is imaged on the imaging member. | 03-03-2011 |
| 20110038969 | FERMENTED COMPOSITION OF MUNG BEAN HULLS, METHOD FOR FORMING THEREOF, AND ANTI-OXIDATION AND ANTI-INFLAMMATION COMPOSITION USING THE SAME - The invention provides a method for forming a fermented composition of mung bean hulls, including: mixing mung bean hulls and water to form a mixture; adding a fungus into the mixture, wherein the fungus includes | 02-17-2011 |
| 20110032485 | Optical Projection Device and Projecting Method Thereof - An optical projection device includes a laser engine, a first wave plate and a lens. The laser engine provides light. The first wave plate changes a light phase. The lens focuses light. A projecting method of an optical projection device includes providing a light including a first P polarized light, a first S polarized light, and a second S polarized light, and projecting light through a wave plate on a screen, wherein the wave plate moves in a direction perpendicular to light. A projecting method of an optical projection device includes providing light including a first P polarized light, a first S polarized light, and a second S polarized light, and projecting light through a wave plate on a screen, wherein the wave plate rotates around an axis parallel to a projecting direction of light. | 02-10-2011 |
| 20110032228 | Luminance Adjustment Systems and Methods for Display Units - Luminance adjustment systems and methods for display units are provided. The system includes a display unit, an image sensor, and a processing unit. The image sensor captures at least one image. The processing unit receives the image from the image sensor, and obtains the image luminance of the image. The processing unit adjusts a display luminance of the display unit according to the image luminance. | 02-10-2011 |
| 20100321514 | METHODS AND SYSTEMS FOR IMAGE CAPTURE AND PROCESSING - Image capture and processing methods and systems are provided. First, an image is captured via an image capture unit. Then, a plurality of smaller images is created according to the image, and the image and the smaller images are stored into an image file. The resolutions of the respective smaller images are the same. Then, the smaller images are obtained from the image file. The smaller images are combined to obtain a specific image, and the specific image is displayed in a display unit. | 12-23-2010 |
| 20100283975 | DISPLAY APPARATUS - A display apparatus comprises a light module and an optical engine. The light module has a plurality of lighting members that emit light beams with single wavelengths, and a wavelength transfer device with different fluorescent matters. When the light beams emitted from the lighting members pass through the fluorescent matter, the light beams become visible light beams with different wavelengths. The optical engine at least has one micro-displaying member. When a visible light beam enters the optical engine, it is emitted through the micro-displaying member and generates an imaging light beam. Finally, the imaging light beam is emitted on a screen. | 11-11-2010 |
| 20100283196 | DOCUMENT FEEDING DEVICE FOR HANDLING AND REVERTING DOUBLE-SIDED DOCUMENT SHEETS TO AN ORIGINAL SEQUENCE - A document feeding device for handling and reverting double-sided document sheets to an original sequence is provided, including a housing unit and a switching unit. The housing unit includes a delivery passage, a flipping passage, a bypass area, a return passage and upper and lower turning passages. The switching unit, pivotally disposed in the bypass area, includes a first switching member, a second switching member connecting to a side of the first switching member, and a guiding passage between the first switching member and the second switching member. The switching unit switches between a first position and a second position. By the switching of the switching unit, the double-sided document is flipped, scanned and reverted to an original sequence. | 11-11-2010 |
| 20100277784 | SHUTTER DEVICE WITH MULTI-STAGE DIAPHRAGM - A shutter device with a multi-stage diaphragm includes a base, a shutter unit pivoted on the base, a driving unit, and an actuator unit. The base includes a first optical opening defining an optical axle passing through the first optical opening. The shutter unit is adjusted to cover the first optical opening. The driving unit includes a main axle perpendicular to the optical axle and installed on the base, and a driving bar moving along the main axle and linking to the shutter unit. The actuator unit includes a coil board installed on one of the base and the driving bar, and an actuator magnet installed on the other of the base and the driving bar corresponding to the coil board. The coil board receives signals to change the relative position between the coil with pattern and the actuator magnet, whereby the actuator unit drives the shutter unit in multi-stages. | 11-04-2010 |
| 20100272429 | APERTURE-RING-AND-SHUTTER DEVICE - An aperture-ring-and-shutter device includes a base unit, a shutter unit, and a diaphragm unit. The base unit includes a base having an optical opening along an optical axis. The shutter unit includes a shutter sheet, a shutter-driving element disposed on the base, and a toggling element actuated by the shutter-driving element. The toggling element has a guide bar utilized to rotate the shutter sheet. The shutter-driving element switches the toggling element between an opening location and a covering location. The guide bar of the toggling element forces the shutter sheet to expose or cover the optical opening of the base unit. The diaphragm unit includes an aperture plate, a diaphragm-driving element, and a toggled element pushed by the diaphragm-driving element. The aperture plate has an aperture less than the optical opening of the base unit. The toggled element has a guide pin utilized to rotate the aperture plate. | 10-28-2010 |
| 20100232014 | OPTICAL TRANSMISSION DEVICE - An optical transmission device including a driving unit having a transmitting member, a guide member, a frame, a clipping unit and a flexible member is disclosed. The clipping unit has a main clip engaging with one side of the transmitting member, and a sub-clip engaging with the other side of the transmitting member. The flexible member pushes the main clip to the sub-clip, so that the sub-clip radially and axially approaches the transmitting member. | 09-16-2010 |
| 20100226021 | COMPACT IMAGING LENS SYSTEM - A compact imaging lens system includes three lenses. The first lens is a positive meniscus lens having a convex side facing toward the image side, which has a big focusing power and is provided to capture image and for balance of aberration. The first lens serves to make the lens system a low sensitivity lens system. The second lens is a negative lens and is provided mainly for correcting chromatic aberration and off-axis aberration. An aperture is set between the first and second lenses, and this is of benefit to balance of aberration. The third lens is a negative lens and is provided for correcting off axis aberration. All the lenses can be made of plastics. This facilitates cost reduction, weight reduction, while still maintains a high resolution. | 09-09-2010 |
| 20100214669 | ZOOM LENS HAVING INCREASED POSITIONING ACCURACY - A zoom lens includes a cam roll, straight-forward units, lens groups, a driving unit, a detecting unit and a micro-processing unit. The lens groups moved by the cam roll sequentially varies from a receiving status to a zeroing status, a macro shooting-distance status and a wide shooting-distance status. A datum point of the cam roll corresponds to the zeroing status of the lens groups. The detecting unit includes an impeller, a detecting portion and a photonic sensor. When the photonic sensor detects the datum point of the cam roll, the micro-processing unit determines the position of the datum point of the cam roll and to reset the rotation count of the impeller. When the photonic sensor detects a skew point of the cam roll, the micro-processing unit determines and amends the rotation count of the impeller to be equal to a predetermined value. | 08-26-2010 |
| 20100214668 | ZOOM LENS SYSTEM - A zoom lens system includes, in order from an object side to an image side along an optical axis thereof, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power and a fourth lens group having positive refractive power. When zooming from a wide-angle end to a telephoto end, both the first and third lens groups move to the object side, and the second lens group first moves to the image side and then moves to the object side, whereby a first variable distance between the first and second lens groups is increased and a second variable distance between the second and third lens groups is decreased. The fourth lens group is also movable along the optical axis, so as to change a third variable distance between the third and fourth lens groups. Each of the third and fourth lens groups includes at least one aspheric surface. The zoom lens system provides a high zoom ratio and a high image resolution, and is short in overall length and small in size. | 08-26-2010 |
| 20100214664 | COMPACT ZOOM LENS SYSTEM AND IMAGE PICKUP DEVICE WITH THE SAME - A compact zoom lens system includes, in order from an object side to an image side along an optical axis thereof, a first lens group having positive refractive power, a second lens group having positive refractive power and a third lens group also having positive refractive power. The first lens group is stationary and includes a reflecting element for bending the optical path. The second and third lens groups are movable along the optical axis, and each of the first, second and third lens groups has at least one aspheric lens surface. When zooming from a wide-angle end to a telephoto end, the second lens group moves toward the object side and the third lens group moves toward the image side, so as to reduce the spacing between the first and second lens groups and increase the spacing between the second and third lens groups. By this specific optical configuration, the compact zoom lens system has the advantages of small size, simple structure, low cost, good reliability and better image quality. | 08-26-2010 |
| 20100157292 | SIGHT - A sight. A saddle is connected between an ocular housing and an objective housing. A crosshair is disposed in the ocular housing. A light-emitting element is disposed in the ocular housing, illuminating the crosshair. A focal adjustment member is disposed on the saddle, adjusting an objective focus for the sight. A key-type member is connected to the focal adjustment member and is electrically connected to the light-emitting element, controlling operation of the light-emitting element and adjusting luminous brightness thereof. | 06-24-2010 |
| 20100157281 | LASER DISTANCE MEASURING APPARATUS AND CONTROL METHOD THEREOF - A laser distance measuring apparatus and control method thereof includes an emitter, a first and second liquid crystal display module, a receiver, a condensing lens, and a control unit. The emitter emits measuring light. The control unit sets the first liquid crystal display module to a second state and the second liquid crystal display module to a first state to receive the reflected light. When the reflected light is larger than a predetermined value, the control unit adjusts a transmittance of the first liquid crystal display module until the reflected light is lower than the predetermined value, and calculates a distance value based on phase difference between the reference light and the reflected light. | 06-24-2010 |
| 20100157279 | Distance Measuring Apparatus and Control Method Thereof - The invention provides a distance measuring apparatus for measuring distance to a target, having: a light emitter for emitting a measuring light; a light receiving system for receiving a reflected light reflected from the target and outputting a sensing signal; a comparator having a reference signal input terminal for receiving a reference signal, a sensing signal input terminal for receiving the sensing signal, and a comparison result signal output terminal for outputting a comparison result signal according to comparison results between the reference signal and the sensing signal; and a process and control module for providing the reference signal to the reference signal input terminal of the comparator and adjusting the reference signal according to the comparison signal. | 06-24-2010 |
| 20100149634 | SIGHTING APPARATUS CAPABLE OF DISPLAYING MAGNIFICATION - Provided is a sighting apparatus capable of displaying a value of magnification. The sighting apparatus includes a magnification generation module, a controller and a display unit. The magnification generation module includes a magnification pattern, which contains multiple values of magnification, and a sensing unit. When the magnification pattern is rotated, the sensing unit detects one of the magnification values from the magnification pattern. The magnification generation module generates a magnification signal corresponding to the magnification value. The controller functions to transform the magnification signal and the display unit displays the value of magnification corresponding to the magnification signal. | 06-17-2010 |
| 20100134638 | Gain-Adjusting Apparatus For Optical Image Stabilizer And Method Thereof - A gain-adjusting apparatus and method thereof are described. The gain-adjusting apparatus includes an integrator, a first register, a control unit, and a second register. The integrator integrates the gyro signal data to generate the integral data. The control unit is coupled to the first register and the second register, respectively. The control unit determines whether the gyro signal data is either greater than an upper gyro threshold or less than a lower gyro threshold to detect the gyro signal data and decrease the gain value stored in the second register. | 06-03-2010 |
| 20100123894 | LASER DISTANCE-MEASURING APPARATUS AND CONTROL METHODS THEREOF - A distance-measuring apparatus is disclosed. The distance-measuring apparatus includes: an emitter, emitting a light to be measured toward a target, a receiver, receiving a reflected emitted light; a reflector, reflecting the emitted light to the receiver; a condensing lens, condensing the reflected emitted light, reflected by the target to the reflector; a driving module, adjusting the inclination angle of the reflector; and a control unit, controlling the driving module to rotate according to a result of comparing the intensity of the emitted light received by the receiver and a predetermined value. | 05-20-2010 |
| 20100123799 | IMAGE CAPTURING APPARATUS - An image capturing apparatus connectable to a display device is provided, including: an image capturing unit to capture and output image data; a recording unit to record image data and parameter data of the display; a command unit to generate a command signal while the display device is connected; a interface connectable to the display of the display device; a power supply unit to supply power for the display via the interface while receiving a power supply signal; and a processing/control unit to generate and output the power supply signal to the power supply unit while receiving the command signal and transmit parameter data and image data to the display via the interface, providing a plug and play function for the display. | 05-20-2010 |
| 20100123783 | GAIN CALIBRATION DEVICE AND METHOD OF GAIN CALIBRATION - A gain calibration device includes an integrator, a first register, a controller, and a second register. When an optical image stabilizer is activated, the controller determines whether a current magnification of an image processing equipment is the same as a previous magnification. When the current magnification is not the same as the previous magnification, the controller reads the current magnification. Then the first registers stores a reference magnification, which is corresponding to a reference gain value of the optical image stabilizer. The second register temporarily stores a current gain value. Based on the reference magnification, the reference gain value and the current magnification, the controller calculates the current gain value corresponding to the current magnification for compensating the optical image stabilizer. | 05-20-2010 |
| 20100104270 | ADJUSTABLE ANTI-SHAKE IMAGE-SENSING MODULE AND METHOD FOR ADJUSTING THE SAME - An adjustable anti-shake image-sensing module includes a base and a movable platform moving along a first straight line and a second straight line with respect to the base. The movable platform comprises a pair of Hall elements respectively corresponding to the first and second straight lines. When the adjustable anti-shake image-sensing module is adjusted, the movable platform is pressed with respect to the base and is thereby located in an aligned position. A pair of magnets is then disposed on the base and the positions of the magnets with respect to the Hall elements are fine-tuned. When aligned with the Hall elements, the magnets are fixed to the base. A pair of circuit boards is disposed on the movable platform and the positions of the circuit boards with respect to the magnets are adjusted. The circuit boards are then fixed to the movable platform. | 04-29-2010 |
| 20100103383 | HEAT-DISSIPATING MEMBER FOR LIGHT SOURCE OF PROJECTOR - A heat-dissipating member for a light source of a projector includes a heat-dissipating sheet connected to the light source of the projector and a fan installed on one side of the heat-dissipating sheet. The heat-dissipating sheet includes a heat-conducting board connected to the light source, a plurality of wings protruding from the heat-conducting board, and a side board protruding from one end of the heat-conducting board to a direction away from the wings and approaching the fan. A surface of the side board facing the fan is wave-shaped. The heat-dissipating member for a light source of a projector provides less volume and ensures the light source to work within a normal working temperature range. | 04-29-2010 |
| 20100102228 | Image Recording Apparatus And Control Method Thereof - Disclosed is an image recording apparatus comprising a temperature sensing module, a detecting module, an image capture module and a control unit. The control unit acquires an appropriate high threshold and an appropriate low threshold corresponding to an ambient temperature sensed by a temperature sensing module. The control unit outputs a high threshold voltage and a low threshold voltage to the detecting module for adjusting the sensitivity of the image recording apparatus to suit a variable ambient temperature properly. | 04-29-2010 |
| 20100101133 | AIMING DEVICE - An aiming device is provided. The aiming device includes an erector tube assembly, a moving plate and a crosshair. The moving plate, disposed on the erector tube assembly, is movable along a direction. The crosshair is disposed on the moving plate. When the moving plate moves, the crosshair moves with the moving plate along the direction. | 04-29-2010 |
| 20100098400 | IMAGE CAPTURE APPARATUS WITH CHARGED CAPACITOR SWITCHING DEVICE FOR PHOTOFLASH - A charged capacitor switching device for a photoflash is provided and includes a flash control unit, a capacitor charging/discharging unit, a charged capacitor switching unit and an illumination modulator. The capacitor charging/discharging unit coupled to the flash control unit includes a plurality of capacitors connected in parallel and switches coupled thereto respectively. The charged capacitor switching unit determines whether each switch is opened or closed according to a compensation parameter. The illumination modulator compares an environmental illumination and a pre-flash illumination to generate a compared result, determines whether the compared result has reached a threshold, obtains the compensation parameter according to the compared result when the compared result is below the threshold, and drives the flash control unit to generate a flash illumination corresponding to the compensation parameter. | 04-22-2010 |
| 20100095577 | FLIP-UP COVER MECHANISM - A flip-up cover mechanism. An annular body includes two opposite through holes. A displacing member is disposed in the annular body and includes two opposite push portions and a first flange. The push portions respectively protrude from the annular body via the through holes. A cover is rotatably connected to the annular body and includes a second flange detachably engaged with the first flange. A torsion spring is connected between the annular body and the cover. When the second flange is engaged with the first flange, the cover is closed in relation to the annular body and the torsion spring is twisted to provide restoring resilience. When the push portions are respectively pushed through the through holes, the displacing member is elastically deformed to separate the first flange from the second flange and the cover is lifted from the annular body by the restoring resilience provided by the torsion spring. | 04-22-2010 |
| 20100091383 | ZOOM LENS ASSEMBLY AND ZOOM LENS MODULE - A zoom lens assembly and zoom lens module are provided, including a first lens, a second lens, a plurality of guiding blocks, a sheathing tube, a plurality of linking members and an adjusting tube. The first lens includes a plurality of curved surfaces disposed on a second lens surface toward a first lens surface. The second lens includes a plurality of driving rods disposed on a third lens surface and abutting the curved surfaces. The guiding blocks are respectively fixed on the first lens. The sheathing tube sheathes the first lens and the second lens and comprises a plurality of guiding notches to receive the guiding blocks, and a plurality of slits. The linking members pass through the slits and are fixed on the second lens. The adjusting tube sheathes the sheathing tube and comprises a plurality of driving notches to receive the linking members. | 04-15-2010 |
| 20100088907 | ELECTRONIC SIGHT AND MANUFACTURING METHOD THEREOF - The electronic sight includes a base, an optical window, a point light source, a photomask and a low-reflective layer. The optical window is disposed on a first end of the base. The point light source, disposed on a second end of the base, provides a lightbeam. The photomask is disposed between the point light source and the optical window, and the low-reflective layer is formed thereon. The lightbeam passes through the photomask along a first direction, hits the optical window, and is reflected toward a second direction by the optical window. The method for manufacturing the electronic sight includes: providing a base; providing an optical window disposed on a first end of the base; providing a point light source disposed on a second end of the base; providing a photomask; forming a low-reflective layer on the photomask; and positioning the photomask between the point light source and the optical window. | 04-15-2010 |
| 20100083555 | AUTO LIGHT INTENSITY ADJUSTMENT SYSTEM - An auto light intensity adjustment system is provided. The auto light intensity adjustment system includes a light sensing unit, a charge/discharge circuit, a comparator unit and a light source module. The light sensing unit outputs a sensing signal according to an ambient light intensity detected thereby. The charge/discharge circuit is coupled to the light sensing unit for receiving the sensing signal, and generating a voltage signal with regular variation periods according to the sensing signal. The comparator unit compares the voltage signal to a threshold value signal, and outputs a result signal accordingly. The light source module modifies a light intensity according to the result signal. The invention automatically controls the light intensity according to the ambient light intensity. | 04-08-2010 |
| 20100073495 | MINIATURIZED ANTI-VIBRATION IMAGE PICKUP DEVICE - A miniaturized anti-vibration image pickup device is provided, including a fixing base, a moving plane disposed on the fixing base that moves along a first direction and a second direction opposite to the fixing base, an image pickup member disposed on the moving plane, and a driving member. The driving member includes a first magnet and a second magnet disposed on the fixing base. A circuit board is disposed on the fixing base, wherein a first precision coil pattern and a second precision coil pattern are printed on the circuit board. The first precision coil pattern and the second precision coil pattern are formed by a electronic signal and move opposite to the first magnet and the second magnet disposed on the fixing base, so that the anti-vibration image pickup devices moved forward to restrain and compensate for blurred images. The coil on the circuit board designed by printed, reduces thickness of the whole device effectively. | 03-25-2010 |
| 20100067888 | CONTROL SYSTEM AND METHOD FOR COMPENSATING FOR IMAGE SHAKE OF IMAGE CAPTURE DEVICE - A control system for compensating for image shake of an image capture device is provided, including a shake compensating module, a shake compensating switch, a control unit, and a shutter control element operated between a first operating stage and a second operating stage. The shake compensating switch is switched between an active state to enable the shake compensating module and an inactive state to disable the shake compensating module. The control unit enables the shake compensating module when the shake compensating switch is in the active state. The control unit produces a reset signal to disable the shake compensating module when the shutter control element is in the second operating stage before the shake compensating switch is switched to the inactive state. The control unit enables the shake compensating module after a specific period of time from when the shake compensating module was disabled. | 03-18-2010 |
| 20100067851 | FILTER DEVICE AND MANUFACTURING METHOD THEREOF - A filter device is provided, including a first and second conductor tube and an outside tube. The first light conductor tube includes a first end for light input, a second end including a first slanted assembled end surface coated with a filter, a first tube, and a first light conductor inserted into the first capillary. The second light conductor tube includes a third end for light output, a fourth end including a second slanted assembled end surface, a second capillary, and a second light conductor inserted into the second capillary. The second assembled end of the fourth end is disposed next to and parallel to the first slanted assembled end surface of the second end of the first light conductor tube to coaxially couple to the first light conductor tube. The outside tube is jacketed outside of the first and second light conductor tubes. | 03-18-2010 |
| 20100039716 | LENS ASSEMBLY WITH A FITTING STRUCTURE - A lens assembly includes a first lens and a second lens. The first lens includes a first inner end surface, a first outer end surface and slots. The slots formed on the first inner end surface extends toward the first outer end surface, and each slot includes a trough and an inner engaging side portion. The second lens includes a second inner end surface, a second outer end surface and engaging blocks. The engaging blocks formed on the second inner end surface extends toward the first inner end surface of the first lens, and each engaging block includes a crest portion disposed next to the first inner end surface of the first lens and an inner engaging protrusion. A slit is defined by the inner engaging side portion and the trough portion of the slot and the inner engaging protrusion and the crest portion of the engaging block. | 02-18-2010 |
| 20100034467 | IMAGE RECOGNITION AND DISTANCE CALCULATION METHODS AND DEVICES - Image recognition and distance calculation methods and devices are provided. First, an image corresponding to a level ruler is obtained, wherein the image includes a first predefined scale and a second predefined scale projected on the level ruler. Then, a baseline height of a baseline mark in the level ruler is determined according to the image. The heights of the first predefined scale and the second predefined scale are calculated according to the baseline height of the baseline mark, the position of the baseline mark in the image, and the positions of the first predefined scale and the second predefined scale in the image. Thereafter, a distance to the level ruler is calculated according to a height difference between the heights of the first predefined scale and the second predefined scale. | 02-11-2010 |
| 20100017639 | POWER MANAGEMENT APPARATUS AND METHODS - A power management apparatus including power supply circuit and control unit is disclosed. The power supply circuit receives input voltage having voltage value, and converts voltage value into a first converted signal having a first voltage value and a second converted signal having a second voltage value through first and second converters, respectively. The first and second converters are reset according to first and second reset signals, respectively. The control unit receives the first and second converted signals, and compares the first and second voltage values with first and second reference ranges, respectively. The control unit further issues first reset signal when first voltage value is not within first reference range and second voltage value is within second reference range, and issues second reset signal when first voltage value is within first reference range and second voltage value is not within second reference range. | 01-21-2010 |
| 20100002087 | ANTI-SHAKE DEVICE FOR OPTICAL INSTRUMENT - An anti-shake device for positioning an image-capturing unit in an optical instrument. A base includes a shaft pillar. A clamp unit includes a first clamping arm and a second clamping arm. The first and second clamping arms pivot to the shaft pillar of the base and detachably clamp the image-capturing unit. A drive unit is connected to the base and includes a driven member driving the first and second clamping arms of the clamp unit to rotate and shifting between a first mode and a second mode. The first and second clamping arms are separated from each other and the image-capturing unit when the driven member is in the first mode. The first and second clamping arms close and clamp the image-capturing unit when the driven member is in the second mode. | 01-07-2010 |
| 20090316011 | IMAGE DETECTING MODULE - The invention provides an image detecting module including a base, a carrier movably disposed on the base, an image detecting unit disposed on the carrier, a contact portion fixed to the carrier, and a fixed member fixed to the base. The fixed member has a protrusion movably contacting a recess of the contact portion. When an external force is exerted on the base and the carrier moves with respect to the base, the protrusion slides on a surface of the recess. When the external force is released, the protrusion slides to the bottom of the recess, such that the carrier is held in a predetermined position with respect to the base. | 12-24-2009 |
| 20090310952 | CAMERA - A camera having a shutter button, a photo sensor array, an anti-shake module controlled by an anti-shake enable signal, and a mechanical shutter. By pressing the shutter button, a first operation and a second operation are provided to trigger an auto-focus enable signal and an image exposure control signal, respectively. The anti-shake enable signal is enabled when the auto-focus enable signal has been triggered and the image exposure control signal is disabled or has just been triggered. The photo sensor array performs image exposure according to the image exposure control signal. The mechanical shutter is disabled and closed after the image exposure control signal is triggered for exposure period. | 12-17-2009 |
| 20090303360 | IMAGE-SENSING MODULE FOR DIGITAL OPTICAL DEVICE - An image-sensing module. A base includes a plurality of sidewalls and an accommodation hole encompassed by the sidewalls. A flexible printed circuit board includes an installation portion and a through hole formed on the installation portion. A heat-dissipation board is fixed to a bottom surface of the installation portion of the flexible printed circuit board and is aligned with the through hole. An image sensor is fixed to a top surface of the installation portion of the flexible printed circuit board and is aligned with the through hole. The heat-dissipation board, flexible printed circuit board, and image sensor are accommodated in the accommodation hole of the base. | 12-10-2009 |
| 20090303333 | CAMERA AND IMAGE DETECTING MODULE THEREOF - The invention provides an image detecting module including a base, a carrier movably disposed on the base, an image detecting unit, a driving unit, and a magnetic device fixed to the base, corresponding to the driving unit. The image detecting unit is fixed to one of the carrier and the base, and the driving unit is disposed fixed to the other of the carrier and the base. The carrier is substantially parallel to a plane, and the driving unit includes a coil to produce a variable induced magnetic force between the coil and the magnetic device. The driving unit and the magnetic device both have an angle with respect to the plane. The carrier and the image detecting unit are moved with respect to the base by the induced magnetic force between the coil and the magnetic device. | 12-10-2009 |
| 20090296217 | IMAGE BLUR CORRECTION DEVICE - An image blur correction device includes a base, a seat disposed on the base, an image detecting unit disposed on the seat, at least one coil, and at least one magnet. The coil is disposed on the seat or the base, has a first length in a first direction and a second length in a second direction, and has a hollow portion. The first direction is perpendicular to the second direction. The magnet is disposed on the seat or the base and opposite to the coil, and has a third length in the first direction corresponding to the first length and a fourth length in the second direction corresponding to the second length. The coil moves relative to the magnet and has a maximum moving distance so that the seat moves relative to the base. A width of the hollow portion equals to or exceeds twice the maximum moving distance. | 12-03-2009 |
| 20090295919 | MONITORING SYSTEMS AND CONTROL METHODS THEREOF - A monitoring system with two detectors arranged on left and right sides of a camera thereof. The two detectors divide the area around the monitoring system into a non-detectable region, an overlapped detecting region, and first and second non-overlapped detecting regions. According to the detection result of the detectors, the control unit wakes up from a sleep mode when an object leaves the non-detectable region and enters the first or second non-overlapped detecting region. Meanwhile, the control unit turns on the camera to start shooting when the object has further entered the overlapped detecting region. | 12-03-2009 |
| 20090285571 | IMAGE DETECTING MODULE AND POSITIONING MECHANISM THEREOF - An image detecting module is disclosed, including a base, a first magnetic element fixed to the base, a slider movably connected to the base, a second magnetic element disposed on the slider, an image detecting unit disposed on the slider, and a coil disposed on the slider or the base. The slider is held in a predetermined position by magnetic attraction between the first and second magnetic elements when no electric current is driven through the coil. When an electric current is driven through the coil, an electromagnetic field is induced by the electric current to eliminate magnetic attraction between the first and second magnetic elements, such that the image detecting unit and the slider are released from the predetermined position and movable with respect to the base. | 11-19-2009 |
| 20090273847 | ZOOM LENS - The invention provides a zoom lens, including a plurality of lens groups. When the zoom lens is in operation, the plurality of lens groups are aligned on a common optic axis, and the zoom lens forms a first plane and a second plane conjugated with the first plane. To retract the zoom lens, at least one of the lens groups is rotated around an axis perpendicular to the common optical axis and toward the first plane, and at least one of the rest of the lens groups is moved toward the second plane along the common optical axis. As a result, overall length of the zoom lens is shortened when it is retracted to obtain the miniaturization. | 11-05-2009 |
| 20090231463 | CALCULATION METHOD FOR THE CORRECTION OF WHITE BALANCE - A calculation method for calculating a white balance correction value is disclosed. When an image capture device utilizes an auxiliary light to capture an image, the weightings of the image color impacted by the color temperature of each light source are obtained by the brightness-rate which is provided by the environment light and the flash, and then the weightings of the color temperatures of the two light sources are balanced to obtain a white balance correction value. At last, the white balance correction value is applied to correct the white balance of the image. | 09-17-2009 |
| 20090213230 | IMAGE CAPTURE METHOD AND SYSTEM - An image capture method for capturing an image with a single lens is provided. The method includes: (a) sequentially moving an image capture unit to predetermined positions; (b) sequentially capturing a plurality of frames of images by the image capture unit at the predetermined positions, wherein at least one image distance difference exists among the images; and (c) generating at least one image file by a processing unit according to the images. | 08-27-2009 |
| 20090195769 | DISTANT MEASUREMENT METHOD AND DISTANT MEASUREMENT SYSTEM - A distant measurement method and a distant measurement system are provided. The distant measurement method includes the following steps: emitting a first light beam and a second light beam from an emitting terminal, wherein the first light beam travels toward a target; providing a switching sequence by a switch mechanism; placing a receiving terminal to receive the first light beam reflected from the target in accordance with the switching sequence and correspondingly provide a first electrical signal, and to receive the second light beam and correspondingly provide a second electrical signal; and utilizing a controlling terminal to receive the first and second electrical signals, and calculate distance between the distant measurement system and the target in accordance with a phase differential formed between the first and second electrical signals. | 08-06-2009 |
| 20090195678 | IMAGE CAPTURE SYSTEM AND METHOD OF CAPTURING LABELED IMAGE - An image capture system is provided. The image capture system for capturing an image of an object includes a light emitting module, a lens, a base unit and a filter unit. The light emitting module provides a plurality of light beams to form a reference area. The base unit includes a light sensor corresponding to the lens. The filter unit includes at least one visible light passing portion and at least one invisible light passing portion. The filter unit is driven to position one of the visible light passing portion and the invisible light passing portion between the lens and the light sensor. The actual size of the object can be estimated via the reference area. | 08-06-2009 |
| 20090185043 | IMAGE CAPTURE METHODS - Image capture systems capable of ensuring clear images are provided, in which an image capture module senses at least one image, and an operational module performs a compensation to the image capture system according to a modulation transfer function (MTF) value corresponding to the image, such that the image capture system can be operated under an optimized total gain thereby ensuring clear images. | 07-23-2009 |
| 20090160964 | IMAGE DATA PROCESSING METHOD - An image data processing method to capture still images while capturing motion images is disclosed. The method includes stopping a motion image capturing according to a first instruction to generate a first motion image data with a first resolution, thereafter, carrying out live view at a predetermined time; outputting the image data in the predetermined time and generating a first temporal motion data with a second resolution; capturing a still image data according to a second instruction after the predetermined time; transforming the first temporal motion data and the still image data and generating a second motion image data by combining the transformed data with the first motion image data. | 06-25-2009 |
| 20090141373 | LENS MODULE - A lens module includes a base to be fixed, a second elastic sheet fixed in the base, a lens sleeve sliding according to the base, a limiting member installed on the lens sleeve, a first elastic sheet, and an upper cover. The lens module includes a covering board with a central hole installed between the second elastic sheet and the lens sleeve. The diameter of the central hole is greater than the outer diameter of the lens sleeve. The covering board is connected to the base to fix the second elastic sheet on the base. Because the covering board to connect to the base, the second elastic sheet can be fixed on the base for decreasing time-consumption, reliable fixation, and decreasing the rate which the second elastic sheet rotates and is deformed. | 06-04-2009 |
| 20090110020 | LIGHT EMITTING SYSTEM - A light emitting system is disclosed, including a light generator, a complex lens and an activating unit. The light generator provides a light beam emitted in a first direction in parallel to an optic axis. The complex lens, disposed on a path of the light beam, includes a plurality of micro structures for refracting the light beam. The activating unit includes an activating member coupled to the complex lens. The activating member activates the complex lens with an activation frequency to reciprocally move in a second direction alternate to the first direction. By the disposition of the complex lens, the energy of the light beam is uniformly distributed. Additionally, speckle produced by the light beam is reciprocally moved within an area by the activating unit, creating a photogene reaction, to successfully eliminate existence of the speckle. | 04-30-2009 |
| 20090109640 | OPTICAL ENGINE - An optical engine is provided, including an imaging module, a driver module and a connecting unit. The imaging module includes an imaging housing with an imaging space and an imaging unit installed in the imaging space. The imaging housing is made of a conductive material. The driver module includes a driver housing with a driver space and a driver circuit board installed in the driver space. The connecting unit includes at least one of the cables is electrically connected to the imaging unit and the driver circuit board and at least a protruding module protruding from the imaging housing (or the driver housing) to contact with the driver housing (or the imaging housing). The cable is installed in the protruding module made of a conductive material. | 04-30-2009 |
| 20090109408 | LIGHT-FILTERING MODULE AND PROJECTING SYSTEM APPLIED THEREWITH - A light-filtering module includes a light-source module, a dichroic mirror and a first image unit. The light-source module outputs a light beam. The dichroic mirror divides the light beam into a first colored light and a dual colored light. The first image unit provides the first colored light with image information. The light-filtering module includes a light-filtering unit and a driving unit. The light-filtering unit located between the dichroic mirror and the first image unit is located at a light path of the first colored light. The driving unit includes a coupling element coupled to the light-filtering unit and a driving element utilized to drive the coupling element. The driving element drives the light-filtering unit, switching between a first status and a second status by the coupling element, and a wide-wavelength spectrum and a narrow-wavelength spectrum are provided when the light-filtering unit is in the first and second statuses, respectively. | 04-30-2009 |
| 20090070399 | ARITHMETIC PROCESSING SYSTEM AND METHOD THEREOF - An arithmetic processing system processes a sensing signal and a first approximate offset signal to obtain a second approximate offset signal. The system includes a first arithmetic processor and a second arithmetic processor. The first arithmetic processor receives and processes the sensing signal and the first approximate offset signal to output a first arithmetic signal. The second arithmetic processor processes the first arithmetic signal to output a second arithmetic signal, and the second arithmetic signal is added with a predetermined offset signal to obtain the second approximate offset signal, and the second approximate offset signal is closer to a real offset signal of the sensing signal than the first approximate offset signal. A method of arithmetic processing is also disclosed. | 03-12-2009 |
| 20090059386 | MICROSCOPE OPTICAL SYSTEM AND DIGITAL MICROSCOPE HAVING THE SAME - A microscope optical system includes, in order from an object side to an image side, a first lens group, a second lens group, a stop, a third lens group, a fourth lens group and a sensor. The first to fourth lens groups all have at least one lens element and at least one of lens elements of the first to fourth lens groups has an aspheric surface. The microscope optical system satisfies several specific conditions so as to provide microscope images of high resolution and high zoom ratio. A digital microscope having the microscope optical system adopts a CCD sensor so that a observer may observe microscope images displayed on a large display screen and store the images for subsequent edition or inspection. | 03-05-2009 |
| 20090040621 | ZOOM LENS - A zoom lens for capturing images that enhances the image aberration correction rate to achieve high resolution and zooming ratio. The zoom lens includes, in sequence from an object side to an image side, a first lens group with positive refraction power, a second lens group with negative refraction power, a third lens group with positive refraction power, a fourth lens group with positive refraction power, a fifth lens group with positive refraction power and a sixth lens group with positive refraction power. The positions of first and sixth lens groups are fixed during photographing. When the zoom lens is made to zoom from a wide-angle end to a telephoto end thereof, the second lens group moves toward the image side while the fourth and fifth lens groups move toward the object side. In addition, the zoom lens has a reflection element so as to fold the image light entering thereof. | 02-12-2009 |
| 20090027786 | RETRACTABLE LENS AND SLIDABLE LENS RETRACTING DEVICE THEREOF - A slidable lens retracting device is provided for retracting a lens system that include lens group units all positioned on a common optical axis when the lens system is in an operational state. At least one lens group unit is retracted from the on-axis position on the optical axis to an off-axis space radially off the optical axis by the slidable lens retracting device when the lens system is moved to a retracted state. The slidable lens retracting device includes slides mounted to the lens (group unit and fixed support members forming inclined surfaces with which the slides are engageable. The control tracks receive the slides therein and are movable along the optical axis to bring the lens system to the retracted position to cause the slides to engage and slide along the inclined surfaces and thus moving the lens group unit to the off-axis space. | 01-29-2009 |
| 20090021603 | EXPOSURE ADJUSTMENT METHODS AND SYSTEMS - Exposure adjustment methods and systems are provided. First, image data including a plurality of pixels is obtained. A plurality of sample regions is set based on respective pixels. A parameter calculation is performed according to a plurality of specific pixels in the sample regions to obtain a plurality of groups of adjustment parameters. At least one of the pixels is performed with a parameter adjustment according to the adjustment parameters. | 01-22-2009 |
| 20090009725 | PROJECTION SYSTEM, OPTICAL SYSTEM THEREOF AND PROJECTING METHOD THEREOF - An optical system for a projector is provided, including a light source generating laser beams, a transforming sheet, a panel, and a lens set. Laser beams from planar light sources penetrate the transforming sheet and are uniformly transformed to be rectangular beams, acting as light beams from a planar light source. The rectangular laser beams pass through the panel to generate an image which is projected to a screen by the lens set. | 01-08-2009 |
| 20080317477 | LASER RANGEFINDER AND METHOD FOR DIGITAL SIGNAL PROCESSING THEREOF - A method for digital signal processing is disclosed. Reflected laser signals are received and digitized to generate corresponding digital signals. The digital signals are accumulated to generate an accumulated signal. A digital filtering operation is applied to the accumulated signal to generate a filtered signal. A maximum signal value for the filtered signal is found and a threshold value is set accordingly. It is determined whether the maximum signal value is less than the threshold value, and, if not, a distance value is calculated. | 12-25-2008 |
| 20080316464 | LASER RANGE FINDING DEVICE & DISTANCE MEASUREMENT METHOD THEREOF - A distance measurement method for use in a laser range finding device to measure a distance between the laser range finding device and a target is disclosed. The method comprises the following steps. A laser signal is sent to the target in a first time point. A reflected laser signal reflected by the target is then received. A digital signal having a plurality of signal values ranging from 0 to N is obtained by sampling the reflected laser signal with a sampling signal, wherein N is an integer larger than two. A maximum signal value among the signal values is obtained. The distance is calculated according to the first time point and a second time point where the maximum signal value is generated. | 12-25-2008 |
| 20080291557 | LENS BARREL - A lens barrel is disclosed. The lens barrel includes a sleeve having curved groove on an inner side thereof, a lens module having at least one lens and an optical axis having an object end and an image end, and a pin projecting from the lens module and engaged in a curved groove, whereby the lens module is slidably disposed in the sleeve and the sleeve is rotated to move the lens module along the optical axis. The pin has a contact surface contacting the curved groove and a notch is formed on the contact surface. | 11-27-2008 |
| 20080291514 | LIGHT GUIDE DEVICE AND ILLUMINATION MODULE USING THE SAME - An illumination module is provided in the invention. The illumination module includes a light source having a plurality of light emitting elements arranged in a linear array and a light guide device. The light guide device receives light from the light source and generates uniform light which is transmitted onto an article to be scanned, has a longitudinal direction, and includes a diffraction structure and a reflection portion. The diffraction structure has a shape inducing light to be scattered and deflects the scattered light toward the longitudinal direction. The reflection portion reflects the light scattered and deflected by the diffraction structure, and is inclined to have an inclined angle with the light propagating direction. In addition, the reflection portion is formed on the diffraction structure or apart from it. | 11-27-2008 |
| 20080285142 | PROJECTION ZOOM LENS - A projection zoom lens includes, from a screen side to an image source side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, a third lens group having a positive refractive power, a fourth lens group having a negative refractive power and a fifth lens group having a positive refractive power. Zooming the projection zoom lens from the wide-angle end to the telephoto end causes the second, third and fourth lens groups to move toward the screen side, and the first and fifth lens groups are kept stationary. The projection zoom lens may further include an auto iris being axially movable with the fourth lens group, a composite prism and a cover glass. The projection zoom lens satisfies several conditions so that it can effectively eliminate aberrations and improve the projection image quality. | 11-20-2008 |
| 20080267604 | AF LENS POSITION DETERMINATION SYSTEMS AND METHODS AND ANTI-DAZZLING SCREENS THEREOF - AF lens position determination systems and methods. The system comprises an anti-dazzling screen, a sensor and a processing module. The anti-dazzling screen comprises first and second areas. The length of a respective covered sub-area in the first area is a first distance, and the length of a respective uncovered sub-area in the first area increases progressively from the center to a first border of the anti-dazzling screen. The length of a respective uncovered sub-area in the second area is a second distance, and the length of a respective covered sub-area in the second area increases progressively from the center to a second border of the anti-dazzling screen. The sensor moves within a range, and generates high and low signals based on the anti-dazzling screen. The processing module determines the position of an AF lens according to the signals generated by the sensor. | 10-30-2008 |
| 20080266670 | FIXED-FOCUS LENS SYSTEM - A fixed-focus lens system includes, in order from an object side to an image side along an optical axis thereof, an aperture stop, a first positive lens, a second negative lens, a third positive meniscus lens, and a fourth negative lens having increasing negative refractive power from the optical axis toward the periphery. The fixed-focus lens system satisfies the following condition: 0.1| 10-30-2008 | |
| 20080259171 | SYSTEM AND METHOD FOR COMPENSATING OFFSET OF A SOLID-STATE IMAGING DEVICE - A method for compensating an offset of a solid-state imaging device includes obtaining a detection signal representing the offset of the solid-state imaging device disposed on a stage, generating a corresponding control voltage and control signal according to the detection signal; generating a corresponding regulation voltage according to the control voltage, generating a corresponding driving voltage according to the regulation voltage, outputting a driving signal according to the driving voltage and the control signal, and generating a magnetic force according to the driving signal to move the stage. | 10-23-2008 |
| 20080247055 | Zoom Lens System - A zoom lens system includes a first lens group, a second lens group, a third lens group, a fourth lens group, and an aperture stop, from an object side to an image side on an optical axis. The zoom lens system satisfies the following condition: | 10-09-2008 |
| 20080239720 | Optical Apparatus with Dual Illuminating Devices - An optical apparatus with dual illuminating devices includes a body, a first lighting device, a pivoting arm, an actuating pin, a switch and a second lighting device. The body has a joint portion. The first lighting device is mounted in the body. The pivoting arm has a first end and a second end. The first end is pivotally mounted on the joint portion so that the pivoting arm can be adjusted between a first position and a second position relative to the body. The second lighting device is mounted on the second end of the pivoting arm. Rotating the pivoting arm drives the actuating pin to press the switch, which turns off the second lighting device and turns simultaneously on the first lighting device. | 10-02-2008 |
| 20080225401 | COMPACT IMAGING LENS SYSTEM - A compact imaging lens system includes three lenses. The first lens is a positive meniscus lens having a convex side facing toward the image side, which has a big focusing power and is provided to capture image and for balance of aberration. The first lens serves to make the lens system a low sensitivity lens system. The second lens is a negative lens and is provided mainly for correcting chromatic aberration and off-axis aberration. An aperture is set between the first and second lenses, and this is of benefit to balance of aberration. The third lens is a negative lens and is provided for correcting off axis aberration. All the lenses can be made of plastics. This facilitates cost reduction, weight reduction, while still maintains a high resolution. | 09-18-2008 |
| 20080225151 | DEVICE OF OFFSET COMPENSATION FOR SOLID-STATE IMAGING DEVICE AND RELATED METHOD - A method of offset compensation for solid-state imaging devices is provided. In the method a first and second detection signal are obtained. The two signals are compared to obtain a difference value. A variable voltage is output according to the difference value to drive a magnetic element. The solid-state imaging device is moved by the magnetic element to compensate the offset of the solid-state imaging device. A system of offset compensation of the solid-state imaging device is also disclosed. | 09-18-2008 |
| 20080218877 | FIXED FOCAL LENGTH LENS SYSTEM - A fixed focal length lens system comprises a first lens unit and a second lens unit. The first lens unit comprises a plastic minus lens, wherein the first lens unit has a negative diopter, and the plastic minus lens comprises at least one non-spherical surface. The second lens unit comprises a plastic plus lens, wherein the second lens unit has a positive diopter. The fixed focal length lens system satisfies the equation: −1<2 Gf/1 Gf<0, wherein 1 Gf is the focal length of the first lens unit and 2 Gf is the focal length of the second lens unit. | 09-11-2008 |
