Patent application number | Description | Published |
20110001982 | OPTICAL IMAGING APPARATUS AND METHOD - The present invention relates to an optical imaging apparatus and a method, and more particularly to an optical imaging apparatus and a method with short coherence length optical source. The apparatus comprises an optical source with a plurality of outputs for providing a reference light and a sample light; a sample probe module for leading the sample light to a sample, and leading an information light out; an interference module for leading the reference light to a photo detector, and leading the information light to the photo detector; and a signal processing unit electrically coupled to the photo detector; wherein the reference light and the information light are superimposed on the photo detector, an interference light pattern is detected by the photo detector, and a signal that represents the interference light pattern is transmitted to said signal processing unit for analyzing the spatial information of the sample. | 01-06-2011 |
20110037986 | INTERFERENCE MEASURING APPARATUS AND MEASURING METHOD THEREOF - The present invention discloses an interference measuring apparatus, which comprises a light source module, a beam splitter, a first lens module, a reflecting module, a second lens module, and a detection device. A light beam generated from the light source module can be projected on the beam splitter. The beam splitter splits the light beam to generate a first light beam and a second light beam, wherein the first light beam passes through the first lens module and then projects onto the reflecting module, and the second light beam passes through the second lens module and projects onto an object. Furthermore, the first light beam and the second light beam are reflected by the reflecting module and the object, respectively, then both the first light beam and the second light beam are leaded to the detection device to form an interference pattern for obtaining the contours and internal cross-sectional image of the object. | 02-17-2011 |
20110128611 | WHITE LIGHT SOURCE WITH CRYSTAL FIBER AND METHOD FOR COLOR TEMPERATURE TUNING THEREOF - The present invention relates to a white light source, and particularly to a white light source with crystal fiber and a method for color temperature tuning thereof. The white light source of the present invention comprises a pumping source for providing a first-color light, and a gradient index lens for coupling the first-color light into a crystal fiber. The crystal fiber absorbs a portion of the first-color light and generates a second-color light and a third-color light, and a white light with high color rendering index can be obtained. The crystal fiber is made of a first rare earth element oxide and a second rare earth element oxide co-doped yttrium aluminum garnet. The color temperature of the white light can be tuned by adjusting the position of the focus of the pumping light on the end section of the crystal fiber. | 06-02-2011 |
20120212736 | CRYSTAL FIBER, RAMAN SPECTROMETER USING THE SAME AND DETECTION METHOD THEREOF - The invention relates to a crystal fiber, a Raman spectrometer using the same and a inspection method thereof. The crystal fiber comprises a sapphire crystal is doped with two transition metals having different concentrations. An excitation light beam at a specific wavelength can propagate along the crystal fiber to generate a narrow-band light beam and a wide-band light beam to project on a specimen. Raman scattered light is emitted from the specimen. The wavelength of the Raman scattered light falls within the wavelength range of the wide-band light beam so that the wide-band light beam is enhanced at some characteristic wavelengths to facilitate Raman spectroscopy. | 08-23-2012 |
20120293805 | INTERFERENCE MEASURING APPARATUS AND MEASURING METHOD THEREOF - An interference measuring apparatus comprises a light source module, a beam splitter, a first lens module, a reflecting module, a second lens module, and a detection device. A light beam generated from the light source module can be projected on the beam splitter. The beam splitter splits the light beam to generate a first light beam and a second light beam. The first light beam passes through the first lens module and then projects onto the reflecting module, and the second light beam passes through the second lens module and projects onto an object. Furthermore, the first light beam and the second light beam are reflected by the reflecting module and the object, respectively, then both the first light beam and the second light beam are leaded to the detection device to form an interference pattern for obtaining the contours and internal cross-sectional image of the object. | 11-22-2012 |
20140060420 | Ti: SAPPHIRE CRYSTAL FIBER, MANUFACTURING METHOD THEREOF, AND WIDE BAND LIGHT SOURCE USING THE SAME - The present invention relates to a crystal fiber, and more particularly to a Ti: sapphire crystal fiber, a manufacturing method thereof, and a wide band light source with the same. The Ti: sapphire single crystal is grown by means of laser-heated pedestal growth (LHPG) method into a crystal fiber of a predetermined diameter. The as-grown crystal fiber is annealed for enhancing its fluorescence and reducing the infra-red residual absorption. The annealed crystal fiber is inserted into a glass capillary and is grown into a single-clad crystal fiber. The wide band light source comprises: a pumping source for providing a pumping light; a single-clad Ti: sapphire crystal fiber for absorbing the pumping light and emitting the wide band light. | 03-06-2014 |
20140072010 | Ti: SAPPHIRE CRYSTAL FIBER, MANUFACTURING METHOD THEREOF, AND WIDE BAND LIGHT SOURCE USING THE SAME - The present invention relates to a crystal fiber, and more particularly to a Ti: sapphire crystal fiber, a manufacturing method thereof, and a wide band light source with the same. The Ti: sapphire single crystal is grown by means of laser-heated pedestal growth (LHPG) method into a crystal fiber of a predetermined diameter. The as-grown crystal fiber is annealed for enhancing its fluorescence and reducing the infra-red residual absorption. The annealed crystal fiber is inserted into a glass capillary and is grown into a single-clad crystal fiber. The wide band light source comprises: a pumping source for providing a pumping light; a single-clad Ti: sapphire crystal fiber for absorbing the pumping light and emitting the wide band light. | 03-13-2014 |
20140079363 | DOUBLE CLADDING CRYSTAL FIBER AND MANUFACTURING METHOD THEREOF - The present invention relates to a double cladding crystal fiber and manufacturing method thereof, in which growing an YAG or a sapphire into a single crystal fiber by LHPG method, placing the single crystal fiber into a glass capillary for inner cladding, placing the single crystal fiber together with the glass capillary for inner cladding into a glass capillary for outer cladding in unison, heating the glass capillary for inner cladding and outer cladding by the LHPG method to attach to the outside of the single crystal fiber, and thus growing into a double cladding crystal fiber. When the present invention is applied to high power laser, by using the cladding pumping scheme, the high power pumping laser is coupled to the inner cladding layer, so the problems of heat dissipation and the efficiency impairment due to energy transfer up-conversion of high power laser are mitigated. | 03-20-2014 |
Patent application number | Description | Published |
20110310395 | THREE-DIMENSIONAL OPTICAL COHERENCE TOMOGRAPHY CONFOCAL IMAGING APPARATUS - A 3D OCT confocal imaging apparatus includes a light source module for providing an illumination beam with wider bandwidth from a crystal fiber; a reference source module; a pickup module; a beam splitter; an optical filter; and a sensor module. When the illumination beam illuminates a sample, a pickup objective lens and a piezoelectric actuator of the pickup module together provide an image beam scanning the sample in depth direction. The image beam and a reference beam from the reference source module together form an interference image beam, which is converted by a photosensor into a coherence image electric signal. Meanwhile, the interference image beam passes through a pinhole to form a confocal image, which is converted by an excited light photometer into a confocal image electric signal. With an image processing system, a 3D OCT confocal microscopic image of the sample can be produced from these image electric signals. | 12-22-2011 |
20150077709 | OPTICAL APPARATUS AND OPERATING METHOD THEREOF - An optical apparatus applied to ophthalmology detection is disclosed. The optical apparatus includes a first light source module, a second light source module, and an interference module. The first light source module is formed by a laser light source and lens units and used to emit a first light signal. The second light source module is formed by fiber units and lens units. The second light source module is coupled to the first light source module in series. The second light source module is used to receive a first light signal and emit a second light signal. The interference module is coupled to the second light source module and used to receive the second light signal and provide a first incident light and a second incident light to an object to be detected and a reference mirror respectively. | 03-19-2015 |
20150078705 | LIGHT SOURCE MODULE OF OPTICAL APPARATUS AND OPERATING METHOD THEREOF - A light source module of an optical apparatus is disclosed. The light source module includes a laser pump unit, a lens unit, and a fiber unit. The laser pump unit generates a laser source. The lens unit converts the laser source into a condensed beam. The fiber unit receives the condensed beam and emits an optical signal. The light source module can achieve effects of low cost, large bandwidth, high resolution, and high stability with well-designed pump power of the laser pump unit, and length, doping material, and core size of the fiber unit. | 03-19-2015 |
Patent application number | Description | Published |
20120178397 | RECEIVER APPLIED TO A SATELLITE DOWN CONVERTER AND RADIO FREQUENCY METAL-OXIDE-SEMICONDUCTOR AMPLIFIER - A receiver includes a radio frequency metal-oxide-semiconductor amplifier, a mixer, and an intermediate frequency amplifier. The radio frequency metal-oxide-semiconductor amplifier is used for receiving amplifying a signal of a first band and a signal of a second band of a satellite microwave band from an external antenna circuit according to a control signal. The mixer is coupled to the radio frequency metal-oxide-semiconductor amplifier for reducing the signal of the first band to a signal of a first intermediate frequency band according to a first oscillation frequency of a local oscillator, or reducing the signal of the second band to a signal of a second intermediate frequency band according to a second oscillation frequency of the local oscillator. The intermediate frequency amplifier is coupled to the mixer for amplifying and outputting the signal of the first intermediate frequency band and the signal of the second intermediate frequency band. | 07-12-2012 |
20130049811 | HIGH EFFICIENCY DRIVING CIRCUIT - A high efficiency driving circuit includes a first P-type metal-oxide-semiconductor transistor, a second P-type metal-oxide-semiconductor transistor, a first N-type metal-oxide-semiconductor transistor, a second N-type metal-oxide-semiconductor transistor, a current source, a third N-type metal-oxide-semiconductor transistor, a fourth N-type metal-oxide-semiconductor transistor, a fifth N-type metal-oxide-semiconductor transistor, a first resistor, and a second resistor. The first P-type metal-oxide-semiconductor transistor charges a third terminal of the first P-type metal-oxide-semiconductor transistor according to a first control signal, and the first N-type metal-oxide-semiconductor transistor discharges the third terminal of the first P-type metal-oxide-semiconductor transistor according to a second control signal. A high voltage level of the first control signal is at a first voltage, and a low voltage level of the first control signal is at a third voltage; a high voltage level of the second control signal is at a fourth voltage, and a low voltage level of the second control signal is ground. | 02-28-2013 |
20130057233 | POWER MANAGEMENT SYSTEM APPLIED TO A SATELLITE DOWN CONVERTER AND METHOD THEREOF - A power management system applied to a satellite down converter includes a direct current voltage/direct current voltage converter and a detector. The direct current voltage/direct current voltage converter is used for receiving a signal of at least one set-top box. The detector is used for receiving the signal of the at least one set-top box, and generating a control signal to the direct current voltage/direct current voltage converter and a low noise main circuit according to the signal of the at least one set-top box. The low noise main circuit turns off circuits not in use within the low noise main circuit temporarily according to the control signal, and the direct current voltage/direct current voltage converter adjusts a current and/or a voltage generated by the direct current voltage/direct current voltage converter according to the control signal and/or the circuits temporarily not in use within the low noise main circuit. | 03-07-2013 |