PENTAX CORPORATION Patent applications |
Patent application number | Title | Published |
20100311902 | NANOPARTICLES COMPRISING CALCIUM PHOSPHATE ETHYLENE IMINE COMPOSITIONS AND METHODS OF PRODUCTION THEREOF - Highly dispersible inorganic compound nanoparticles modified by functional molecules include the functional molecules; a high molecular nitrogen compound having at least two amino groups selected from primary amino groups, secondary amino groups and tertiary amino groups; and inorganic compound nanoparticles bonded to at least one amino group of the at least two amino groups. The high molecular nitrogen compound is modified by the functional molecules, and the inorganic compound nanoparticles are covered with the high molecular nitrogen compound modified by the functional molecules. | 12-09-2010 |
20090309993 | IMAGE SURFACE ILLUMINANCE VARYING APPARATUS, EXPOSURE CORRECTING APPARATUS, AND EXPOSURE CORRECTING METHOD - An image surface illuminance varying apparatus includes a variable power optical system in which the optical power thereof can be varied by changing a relative position of a plurality of optical elements thereof; and a light-quantity ratio varying optical element whose transmittance varies in a direction perpendicular to an optical axis of the variable power optical system, the light-quantity ratio varying optical element being located in a light path of the variable power optical system to reduce an illuminance difference of an imaging surface. A distance from the light-quantity ratio varying optical element, which is moved along the optical axis, to a diaphragm or a shutter is varied in accordance with the power varying operation. | 12-17-2009 |
20090166580 | METHOD FOR PRODUCING POROUS BODY COMPRISING APATITE/COLLAGEN COMPOSITE FIBERS - A method for producing a porous body comprising apatite/collagen composite fibers comprising the steps of gelling a dispersion comprising long apatite/collagen composite fibers having an average length of 10-75 mm, short apatite/collagen composite fibers having an average length of 0.05-1 mm, and a liquid; freezing and drying the resultant gel to form a porous body; and cross-linking collagen in the porous body. | 07-02-2009 |
20080298790 | ANTI-SHAKE APPARATUS - An anti-shake apparatus (an image-stabilization apparatus) of a photographing device comprises a movable unit and a controller. The movable unit has an imaging device and is movable and rotatable for an anti-shake operation. The controller controls the movable unit for the anti-shake operation. The controller calculates a hand-shake angle caused by roll. The controller controls whether the anti-shake operation is performed for correcting hand-shake caused by roll, on the basis of the hand-shake angle caused by roll. | 12-04-2008 |
20080297003 | Ultrasonic Motor - An ultrasonic motor includes a stator that includes a comb body with a plurality of circumferentially-arranged comb-like projections and a piezoelectric body integrally mounted on the comb body, a rotor rotatable with respect to the stator, the rotor having a contact surface that establishes pressure contact with the stator, and a resin film formed with predetermined hardness on the contact surface of the rotor, the resin film containing a solid lubricant. | 12-04-2008 |
20080291543 | IMAGING UNIT AND MOBILE ELECTRONIC DEVICE - An imaging unit including an image sensor, an incident-side prism, an exit-side prism, and an intermediate optical system positioned therebetween, wherein light incident on the incident-side prism passes through the incident-side prism, the intermediate optical system and the exit-side prism to be incident on the image sensor, the imaging unit includes a housing supporting the incident-side prism, the exit-side prism and the intermediate optical system such that incident and exit optical axes of the incident-side prism, an optical axis of the intermediate optical system, and incident and exit optical axes of the exit-side prism all lie on a common plane; and a cover board, on which the image sensor is mounted, fixed to the housing so that the image sensor faces an exit surface of the exit-side prism, the cover board closing an opening of the housing. | 11-27-2008 |
20080281159 | Coordinating image acquisition among multiple endoscopes - Coordinating image acquisition among multiple endoscopes is disclosed. A method may include acquiring an image of a surface with a first endoscope system by illuminating the surface with light, collecting backscattered light, and generating the image based on the collected backscattered light. An intensity of the light from the first endoscope system may be reduced. While the intensity of the light is reduced, an image of the surface may be acquired with a second, scanning beam endoscope system by scanning a beam of light over the surface and collecting backscattered light at different times while the beam is scanned over the surface. In one aspect, a coordination signal may be exchanged between the endoscope systems to coordinate the image acquisition. In another aspect, the image acquisition may be coordinated through the scanning beam endoscope system detecting the intensity reduction. Apparatus useful in performing such methods are also disclosed. | 11-13-2008 |
20080278594 | Photographing Apparatus - A photographing apparatus comprises an operation unit and a controller. The operation unit has a direct key and an operation key. The operation key is used for setting a function regarding at least one of an image processing operation of an image data obtained by a photographing operation and a storing operation of the image data and is operated more than once for setting the function. The direct key is used for setting the function and is operated only once for setting the function. The controller sets the function corresponding to an operation of the operation key and that sets the function corresponding to one operation of the direct key. When the direct key is operated once, the function is set regardless of a prior function state set by operating the operation key. | 11-13-2008 |
20080262317 | LIGHT-SOURCE DRIVER FOR PORTABLE ENDOSCOPE - A light-source driver for a light-source unit detachable from an endoscope body of a portable endoscope is provided. The light-source driver includes a first switch, a pilot lamp, a warning lamp, a second switch, and a light-switching block. The first switch switches its status between the On-state and Off-state in connection with the attachment and detachment of the light-source unit to the endoscope body. The pilot lamp indicates that the illumination light source is being energized. The warning lamp indicates that the output voltage of a battery has dropped below a predetermined value. The second switch switches the status of the warning lamp between the On-state and Off-state in connection with the On-state and the Off-state of the first switch. The light-switching block switches the pilot lamp to the Off-state and further enables the second switch when the second switch is set to the On-state and the output voltage has declined to or below the predetermined value. The second switch is set to the Off-state when the light-source unit is detached from the endoscope body. | 10-23-2008 |
20080259242 | POLARIZED LIGHT EMITTING DEVICE - A polarized light emitting device has a planar emitting device, a phase-shift device, a polarizing reflecting device, and a reflecting device. The planar emitting device emits light from a front and back surfaces of the planar emitting device. The phase-shift device transmits the light emitted from said planar emitting device, and changes the polarization direction of the light. The polarizing reflecting device transmits or reflects the light according to the polarization of the light emitted from the front surface or transmitted by said phase-shift device. The reflecting device reflects the light emitted from the back surface or transmitted by said phase-shift device. | 10-23-2008 |
20080259189 | IMAGING-DEVICE DRIVING SYSTEM - An imaging-device driving system, comprising a clock-signal generator, a smear detector, and a frequency-controller, is provided. The clock-signal generator generates a clock signal. The clock signal is used for driving an imaging device. The smear detector detects whether smear is present in an image signal. The image signal is generated by an imaging device. The frequency-controller raises the frequency of the clock signal when the smear detector detects the presence of the smear in the image signal. | 10-23-2008 |
20080255415 | ENDOSCOPE PROCESSOR - An endoscope processor comprising a touch-panel input unit, a mechanical switch unit, and a controller, is provided. The endoscope processor controls an endoscope system. The touch-panel input unit comprises a touch-panel monitor. A command to carry out a function of the endoscope system is input via a command-input display displayed on the touch-panel monitor. The mechanical switch unit is manipulated to carry out at least one function among a light-switching function, a pump-switching function, and a white-balance-start switching function. The controller carries out a function corresponding to the command input via the touch-panel input unit or the mechanical switch unit. | 10-16-2008 |
20080253004 | INTERCHANGEABLE LENS INCORPORATING A LENS DRIVE MOTOR - An interchangeable lens includes a lens drive mechanism for driving a movable lens group provided in the interchangeable lens; a lens-motor for driving the movable lens group via the lens drive mechanism; and a power transmission mechanism for transmitting a driving force of a body-motor provided in a camera body to the lens drive mechanism with the interchangeable lens being mounted to the camera body. | 10-16-2008 |
20080252993 | WIDE-ANGLE ZOOM LENS SYSTEM - A wide-angle zoom lens system includes a positive first lens group, a negative second lens group, a positive third lens group, and a positive fourth lens group, in this order from the object. Upon zooming from the short focal length extremity to the long focal length extremity, at least the first lens group, the second lens group and the third lens group move along the optical axis direction so that the distance between the first lens group and the second lens group increases, the distance between the second lens group and the third lens group decreases, and the distance between the third lens group and the fourth lens group increases. The wide-angle zoom lens system satisfies the following conditions: | 10-16-2008 |
20080252768 | DIGITAL CAMERA USING A FOCAL-PLANE SHUTTER - A digital camera includes an image pickup device; a focal plane shutter including a shutter leading curtain and a shutter trailing curtain; a timer for measuring exposure time; a shutter controller which commences measurement of an exposure time when the shutter leading curtain starts traveling, and drives the shutter trailing curtain upon completing the exposure time measurement; and a charge readout controller which reads out electric charges accumulated by the image pickup device during the exposure time at least twice, first before the shutter trailing curtain commences traveling upon the shutter leading curtain commencing traveling and second upon the shutter trailing curtain commencing traveling. The charge readout controller carries out the electric charge readout, before the shutter trailing curtain commences traveling, at a scanning speed in synchronization with a travel speed of the shutter leading curtain in a same direction of the traveling shutter leading curtain. | 10-16-2008 |
20080239439 | SCANNING OPTICAL SYSTEM - A scanning optical system configured to scan laser light on a scanned surface in a scanning direction, includes a light source emitting the laser light, a converging element converging the emitted laser light in the predetermined scanning direction, a deflector deflecting the converged laser light to scan the laser light on the scanned surface, and a scanning speed controlling element controlling the deflected laser light to be scanned at a constant scanning speed. The scanning optical system is configured to satisfy predetermined conditions. | 10-02-2008 |
20080239434 | MULTI-BEAM SCANNING OPTICAL SYSTEM - A multi-beam scanning optical system configured to scan a plurality of laser beams on a scanned surface in a predetermined scanning direction includes a light source emitting a plurality of laser beams from respective laser emitters spaced from each other in the predetermined scanning direction, a diverging property changing element changing a diverging property of each of the emitted laser beams, a deflector configured to be sine-functionally oscillated and to deflect each of the laser beams with the diverging property thereof as changed so as to scan each of the laser beams on the scanned surface in the predetermined scanning direction, and a scanning speed controlling element configured to control a scanning speed at which each of the laser beams deflected by the deflector is scanned on the scanned surface. The multi-beam scanning optical system is configured to satisfy a predetermined condition. | 10-02-2008 |
20080239099 | CAMERA - A camera according has an interchangeable lens unit removably attached to a camera body, and an image-generating processor that generates image data of a subject captured by the lens unit. A memory provided in the lens unit stores distortion data. The distortion data is associated with an approximation function, which represents the correspondence relationship between image height and distortion aberration. The distortion data includes at least one of: coefficient data of the approximation function, and sample data of the image height and the corresponding distortion aberration. Furthermore, the camera has an approximation function processor that defines an approximation function used to process the image data on the basis of the distortion data read from the memory, and a distortion correction processor that carries out distortion correction processing on the image data based on the aberration distortion calculated for each image point by the defined approximation function. | 10-02-2008 |
20080238253 | ONE-WAY ROTATIONAL TRANSFER MECHANISM, AND ULTRASONIC ROTARY DRIVE DEVICE INCORPORATING ONE-WAY ROTATIONAL TRANSFER MECHANISM - A one-way rotational transfer mechanism includes a rotary input member; a holding member including an axially orthogonal surface to the axis; a hollow-cylindrical rotary output shaft positioned coaxially around the rotary input member to be rotatable relative to the rotary input member, and including a cylindrical inner peripheral surface; a circumferential guide groove formed on the rotary input member; and a torque transfer ball installed between the axially orthogonal surface, the cylindrical inner peripheral surface and the circumferential guide groove, to roll on and be held between the axially orthogonal surface and the circumferential guide groove. The circumferential guide groove is shaped to make the torque transfer ball revolve around the rotary input member in a same direction as the rotary input member while trailing therebehind and to make the torque transfer ball press against the cylindrical inner peripheral surface when the rotary input member rotates. | 10-02-2008 |
20080234396 | Method For Controlling Average Pore Diameter of Porous Body Comprising Apatite/Collagen Composite Fibers - In the process of producing a porous body containing a fibrous apatite/collagen composite by gelating a dispersion comprising said fibrous apatite/collagen composite, collagen and water, freeze-drying the resultant gel to form a porous body, and cross-linking collagen in said porous body, a method for controlling the average pore diameter of said porous body by the solidification time of said gel in said freezing step. | 09-25-2008 |
20080232791 | RELAY FINDER OPTICAL SYSTEM OF AN SINGLE-LENS REFLEX CAMERA - A relay finder optical system, of a single-lens reflex camera, includes a condenser lens group, a prism, and a relay lens group, in this order from a primary imaging plane. | 09-25-2008 |
20080232131 | LIGHT SOURCE DEVICE OF ENDOSCOPE SYSTEM - A light source device of an endoscope system comprises a light-source unit, a light-sensitive element, and a driving unit. The light-source unit emits light and supplies light to the photographic subject through an electronic scope. The light-sensitive element receives light emitted from the light-source unit. The driving unit adjusts the driving intensity of the light-source unit on the basis of a first information regarding an emitting-light intensity of the light-source unit output from the light-sensitive element. | 09-25-2008 |
20080232130 | LIGHT SOURCE DEVICE OF ENDOSCOPE SYSTEM - A light source device of an endoscope system comprises a light source and a light-source controller. The light source emits in a flash-emitting mode that the light source flashes in a flash interval longer than a field period of an imaging sensor for the endoscope system and for a flash period shorter than the field period. The light-source controller controls the light source so that the light source emits in the flash-emitting mode within an imaging period that is a period excluding a reading period within the field period. The flash interval is defined as a period from when the flash of the light source commences to when the next flash of the light source commences. The flash period is defined as a period from when the flash of the light source commences to when the flash of the light source is completed. | 09-25-2008 |
20080231694 | IMAGE PROCESSOR OF ENDOSCOPE SYSTEM - An image processor of an endoscope system comprises an input connector and a determination unit. The input connector is used for connecting one of a video signal output device that outputs a video signal that includes a synchronization signal and a non-video signal output device that outputs a non-video signal that does not include the synchronization signal, to the image processor. The determination unit determines which of the video signal output device or the non-video signal output device is connected to the image processor through the input connector. | 09-25-2008 |
20080226280 | INTERCHANGEABLE LENS - An interchangeable lens which can communicate with a camera body to which the interchangeable lens is detachably attached to exchange data of the interchangeable lens, includes a logic IC serving as an interface via which the interchangeable lens communicates with the camera body; a memory which is provided independent of the logic IC, connected to the logic IC, and stores the data of the interchangeable lens; and a controller, connected to the logic IC, for controlling operations of the interchangeable lens. The logic IC selectively switches connections of terminals thereof with the memory and the controller for communication therewith upon receiving a communication signal from the camera body. | 09-18-2008 |
20080226277 | ANTI-SHAKE APPARATUS - An anti-shake apparatus (an image-stabilization apparatus) of a photographing device comprises a movable unit and a controller. The movable unit has an imaging device and is movable and rotatable for an anti-shake operation. The controller controls the movable unit for the anti-shake operation. The controller obtains information regarding a resolution at the edge of a lens that is used for an imaging operation of the imaging device. The controller controls a degree of the anti-shake operation that is performed for correcting hand-shake caused by roll on the basis of the resolution at the edge of the lens. | 09-18-2008 |
20080226276 | ANTI-SHAKE APPARATUS - An anti-shake apparatus (an image-stabilization apparatus) of a photographing device comprises a movable unit and a controller. The movable unit has an imaging device and is movable and rotatable for an anti-shake operation. The controller controls the movable unit for the anti-shake operation. The controller calculates a first hand-shake angle caused by yaw, a second hand-shake angle caused by pitch, and a third hand-shake angle caused by roll for the anti-shake operation. The controller commences a calculation of the third hand-shake angle from a first time point after a release switch is set to the ON state. The controller commences calculations of the first and second hand-shake angles from a second time point after the first time point, and before an exposure operation commences. | 09-18-2008 |
20080225139 | IMAGING DEVICE - An imaging device includes an imaging optical system including at least one movable optical element; an image sensor, an imaging surface of which lies on an image-forming plane of the imaging optical system; a circuit board on which the image sensor is mounted; and an image processing circuit for processing an image signal output from the image sensor and a drive circuit for the movable optical element, both of the image processing circuit and the drive circuit are mounted on the circuit board. The image processing circuit and the drive circuit are disposed on the circuit board in that order from a side closer to the image sensor. | 09-18-2008 |
20080225126 | SHAKE CORRECTION APPARATUS OF A CAMERA - A shake correction apparatus of a camera, includes a stationary support board; an electrical board movable relative to the stationary support board; an image pickup device supported by the electrical board and including leads made of a magnetic material which are arranged on a periphery of the image pickup device to electrically connect the image pickup device to the electrical board; at least one drive coil which moves with the electrical board; at least one magnet provided on a surface of the stationary support board which faces the electrical board, and positioned around the image pickup device and the leads as viewed from the front thereof, the magnet exerting a magnetic force on the drive coil; and at least one magnetic cover, made of a magnetic substance, for covering a portion of the magnet which faces the leads. | 09-18-2008 |
20080218607 | DISTORTION CORRECTION FOR PHOTOGRAPHING DEVICE - A photographing device comprises a lens and a camera. The camera body has an imaging device and an image-processing unit that performs distortion correction on the basis of information regarding distortion quantity, as part of an image processing of an image signal obtained by the imaging device through the lens. The distortion quantity has at least one of first distortion quantity of the lens and second distortion quantity of the imaging device. The information has a coefficient of an approximation formula for the distortion correction on a two-dimensional coordinate system for the distortion correction. The two-dimensional coordinate system is set on an image obtained by the image processing of the image signal. | 09-11-2008 |
20080204878 | WEATHER-SEALING STRUCTURE OF A LENS BARREL - A weather-sealing structure of a lens barrel includes an inner annular member and an outer annular member which are concentrically arranged to be movable relative to each other, and a water-repellent ring made of synthetic leather which is impregnated with a water repellent, one of two sides of the water-repellent ring being fixed to one of an inner peripheral surface of the outer annular member and an outer peripheral surface of the inner annular member. The other of the two sides of the water-repellent ring includes a hair-implanted surface including a large number of hairs which is in contact with the other of the inner peripheral surface of the outer annular member and the outer peripheral surface of the inner annular member to be slidable thereon. | 08-28-2008 |
20080200764 | ENDOSCOPE SYSTEM - An endoscope system, including an endoscope having a first optical system to obtain an image of an observation object in predetermined magnifying power and a first cleaning system to discharge fluid toward a front end surface of the first optical system to clean the front end surface, and a processor to process the image obtained through the endoscope, having a light source to illuminate the observation object and a reservoir to store the fluid for cleaning, is provided. A dischargeable portion of the first cleaning system is protruded forward from the front end surface of the first optical system when the fluid is discharged from the dischargeable portion and retracted rearward when the image of the observation object is obtained by the first optical system. | 08-21-2008 |
20080199176 | DIAPHRAGM DRIVING DEVICE OF A DIGITAL CAMERA SYSTEM USING AN INTERCHANGEABLE LENS - A diaphragm driving device is provided in a camera body of a digital camera to which an interchangeable lens is detachably attached, the interchangeable lens including a diaphragm mechanism having a diaphragm control bar for changing an aperture size by a rotation of the diaphragm control bar about an optical axis. The camera body includes a diaphragm-driving slide plate which engages with the diaphragm control bar when the interchangeable lens is attached to the camera body; a diaphragm drive motor which rotates in both forward and reverse directions for moving the diaphragm-driving slide plate step wise in accordance with object brightness information of an object image formed through the interchangeable lens; and a converting mechanism for converting the rotation of the diaphragm drive motor in the both directions into a force for moving the diaphragm-driving slide plate. | 08-21-2008 |
20080198457 | DUST-PROOF, REFLECTING MIRROR AND OPTICAL APPARATUS COMPRISING SAME - A dust-proof, reflecting mirror comprising a reflecting mirror substrate, a dust-proof coating having fine surface roughness, which is formed on a reflecting surface of the reflecting mirror substrate, and an outermost water-repellent or water/oil-repellent coating. | 08-21-2008 |
20080198223 | ELECTRONIC ENDOSCOPE SYSTEM AND PROCESSOR FOR ELECTRONIC ENDOSCOPE - An electronic endoscope system includes an electronic endoscope, a processor connected with the electronic endoscope, and a server that performs data communication with the processor via a network. The processor sends, to the server, update request data including an adjusted image and positional information of an adjusted area in the adjusted image. Further the processor receives, from the server, updating data created based on the update request data, and updates at least one of image processing tools used by the electronic endoscope and processor based on the updating data. | 08-21-2008 |