Patent application number | Description | Published |
20080225360 | HOLOGRAM RECORDING/REPRODUCING APPARATUS - A hologram recording/reproducing apparatus includes: a coherent light source; a spatial light modulator which spatially modulates light from the coherent light source; a Fourier transform lens which concentrates light modulated by the spatial light modulator upon a hologram medium; and a two-dimensional light-receiving element array which receives light from the hologram medium. The spatial light modulator is divided into a reference light area and a signal light area, and the divergence angle of reference light emitted from the reference light area is wider than the divergence angle of signal light emitted from the signal light area. | 09-18-2008 |
20080297690 | LASER WAVELENGTH CONVERSION DEVICE, METHOD FOR FORMING POLARIZATION REVERSED STRUCTURE, AND IMAGE DISPLAY DEVICE - An object of the invention is to increase the beam diameter of a laser beam, and perform high-output wavelength conversion without causing crystal damage. A laser wavelength conversion device includes a laser wavelength conversion element for allowing incidence of a laser beam as a fundamental wave to convert a part of the fundamental wave laser beam into a wavelength-converted laser beam having a wavelength different from a wavelength of the fundamental wave laser beam. The laser wavelength conversion element includes a non-linear optical crystal having periodically polarization reversed portions. The polarization reversed portions are formed in such a manner that a region where a wavelength conversion efficiency is substantially uniform extends in a polarization direction of the non-linear optical crystal. The incident laser beam is converted into the wavelength-converted laser beam with the wavelength conversion efficiency. | 12-04-2008 |
20090080466 | COHERENT LIGHT SOURCE AND RECORDING AND REPRODUCTION DEVICE USING THE SAME - For performing hologram recording or reproduction, an oscillation wavelength half value width Δλ of a coherent light source | 03-26-2009 |
20090257463 | LASER LIGHT SOURCE, IMAGE DISPLAY APPARATUS, AND PROCESSING APPARATUS - A laser light source includes a fundamental laser generator that generates a fundamental laser light, a wavelength conversion element that is made of a ferroelectric crystal with a periodically poled structure and converts the fundamental laser light to a laser light having a different wavelength, a holding member that holds at least a part of an element surface of the wavelength conversion element that crosses a polarization direction of the periodically poled structure, and an insulation layer that is provided between the holding member and the element surface. Electric resistivity of the insulation layer is 1×10 | 10-15-2009 |
20110032598 | WAVELENGTH CONVERSION LASER LIGHT SOURCE AND IMAGE DISPLAY DEVICE - A wavelength conversion laser light source includes a fundamental wave laser light source ( | 02-10-2011 |
20110043766 | INFORMATION PROCESSOR WITH PROJECTOR - There is disclosed an information processor including a housing, a projector attached to the housing, and a screen attached to the housing, wherein the projector projects light onto the screen. | 02-24-2011 |
20110147566 | WAVELENGTH CONVERSION LASER LIGHT SOURCE, AND PROJECTION DISPLAY DEVICE, LIQUID CRYSTAL DISPLAY DEVICE AND LASER LIGHT SOURCE PROVIDED WITH SAME - A wavelength conversion laser light source includes: a fundamental light source for outputting fundamental light; a wavelength conversion element with a nonlinear optical effect for converting the fundamental light into harmonic light of a different wavelength; a first optical receiver for receiving light of a specific polarization direction contained in the fundamental light output from the fundamental light source and converting an amount of light thereof into an electrical signal; a second optical receiver for receiving the harmonic light output from the wavelength conversion element and converting an amount of light thereof into an electrical signal; a temperature holding unit for holding a temperature of the wavelength conversion element constant; a fundamental light control unit for performing first control of controlling an amount of light of the fundamental light output from the fundamental light source based on the electrical signal from the second optical receiver, and second control of controlling an amount of light of the fundamental light based on the electrical signal from the first optical receiver; and a temperature control unit for performing third control of controlling a holding temperature of the temperature holding unit based on the electrical signal from the second optical receiver. | 06-23-2011 |
20110170173 | WAVELENGTH CONVERSION LASER AND IMAGE DISPLAY DEVICE - A wavelength conversion laser has: an exciting LD | 07-14-2011 |
20110255149 | WAVELENGTH CONVERSION LASER LIGHT SOURCE AND IMAGE DISPLAY APPARATUS - A wavelength conversion laser light source | 10-20-2011 |
20110317727 | WAVELENGTH CONVERSION LIGHT SOURCE, OPTICAL ELEMENT AND IMAGE DISPLAY DEVICE - A wavelength conversion laser light source, including a solid-state laser medium configured to generate fundamental light; a wavelength conversion element configured to convert the fundamental light into second harmonic light which has a higher frequency than the fundamental light; and a conductive material in contact with the wavelength conversion element, wherein the wavelength conversion element includes a polarization inverted structure formed with a polarization inversion region, and a first lateral surface which perpendicularly intersects with the polarization inversion region, and the conductive material is in contact with the first lateral surface. | 12-29-2011 |
20120099184 | WAVELENGTH CONVERSION LASER LIGHT SOURCE AND IMAGE DISPLAY DEVICE - A wavelength conversion laser light source having: a laser medium which generates a fundamental wave light; a laser resonator for causing laser oscillation of the fundamental wave light; a wavelength convertor which is provided with a wavelength converting region to convert the fundamental wave light under the laser oscillation by means of the laser resonator into converted light of a different wavelength; and an excitation laser light source for exciting the laser medium, wherein the laser resonator has at least one reflecting surface which reflects the fundamental wave, and a first reflecting element which is provided on an end surface of the wavelength convertor to reflect the fundamental wave light ; the wavelength converting region is situated between the at least one reflecting surface and the first reflecting element; the wavelength convertor has a periodic first polarization reversal structure formed in the wavelength converting region, and a non-converting region formed between the first reflecting element and the wavelength converting region; and the non-converting region does not convert the fundamental wave light into the converted light. | 04-26-2012 |
20130335813 | WAVELENGTH CONVERSION LASER LIGHT SOURCE, AND IMAGE DISPLAY DEVICE - A wavelength conversion laser light source, includes: a solid laser medium; a wavelength conversion element; a concave mirror on which a first reflecting surface reflecting a fundamental light wave and a second harmonic light wave is formed; and a wavelength plate on which a second reflecting surface reflecting the fundamental light wave and transmitting the second harmonic light wave is formed, wherein a laser resonator is constituted by the first reflecting surface and the second reflecting surface; the solid laser medium is arranged on a first reflecting surface side of the laser resonator, the wavelength plate is arranged on a second reflecting surface side of the laser resonator, and the wavelength conversion element is arranged between the solid laser medium and the wavelength plate; and the wavelength plate outputs the second harmonic wave, to the exterior of the laser resonator, via the second reflecting surface. | 12-19-2013 |
Patent application number | Description | Published |
20090322898 | Image Pickup Apparatus and Electronic Device - An image processing method and apparatus operable for processing images is disclosed. The image processing method allows for drawing any given image in an output image on which various types of image processing have been performed. Such various types of image processing are, for example, correction of an image having distortion due to the distortion aberration of an imaging lens, an image having unnatural perspective distortion of a subject due to high-angle or overhead photography, generation of an output image with the viewpoint changed from the viewpoint of a captured image, mirror-image conversion of a captured image, and electronic zooming. Embodiments of the present invention also relate to an imaging apparatus that uses the image processing method. | 12-31-2009 |
20100053361 | Image Pickup Apparatus Electronic Device and Image Aberration Control Method - An optical system comprising an aberration control optical system is disclosed. An aberration control optical system is operable to produce an image aberration, and an aperture stop is operable to limit a light beam passing through the aberration control optical system. An image pickup device is operable to capture an object image passing through the aberration control optical system, and the aberration control optical system provides inflection points within a diameter of the aperture stop to obtain a depth extending effect. | 03-04-2010 |
20100079658 | LENS UNIT, IMAGE PICKUP APPARATUS, ELECTRONIC DEVICE AND AN IMAGE ABERRATION CONTROL METHOD - A lens unit using an aberration control module is disclosed. The lens unit can be operable to intentionally produce aberration. In the lens unit, a point-spread-function of a light beam passing through the lens unit becomes substantially circular. | 04-01-2010 |
20100110233 | Imaging Device and Imaging Method - Provided are an imaging device and an imaging method which can realize an appropriate modulation pattern in accordance with a zoom position without requiring a modulation element switching mechanism in a depth extension optical system. The imaging device has: a zoom optical system | 05-06-2010 |
20100165110 | Image Pickup Apparatus, Imaging Method and Method for Correcting Infrared Light - An image pickup device comprising visible color optimization under received near-infrared and infrared light conditions is disclosed. Color signals corresponding to light received through each of a plurality of color filters are processed to determine a near-infrared and infrared light energy contribution. The color signals are processed to optimize color of received images. | 07-01-2010 |
20100302412 | Imaging Apparatus and Electronic Device - An imaging apparatus includes an aberration control optical system having an aberration control function to intentionally generate an aberration and an imaging device; and an image processing device which forms a first image into a highly accurate final image. An aberration control optical system makes the PSF to cover two or more pixels by using the aberration control optical system containing an aberration control element having an aberration control function to intentionally generate an aberration or an aberration control plane having the aberration control function. The aberration control optical system is formed as a depth extension optical system having two or more peaks of the MTF characteristic for defocus in a main image plane shift region not causing a false resolution in a predetermined frequency. | 12-02-2010 |
20110017827 | Optical System, Imaging Device, and Information Code Reader - An image pickup apparatus including an optical system having an optical element including an optical wavefront modulation function; and a detector at a focal position of the optical system, capturing an object image having passed through the optical system, wherein the optical element including the optical wavefront modulation function has a capability of decreasing an alteration of an optical transfer function in an entire screen due to a difference of object distances, and wherein an absolute value of a focal length of the optical element including the optical wavefront modulation function is greater than an absolute value of a focal length of the entire optical system. | 01-27-2011 |
20110122281 | IMAGING DEVICE - An image processing method and apparatus operable for processing images is disclosed. The image processing method allows for drawing any given image in an output image on which various types of image processing have been performed. Such various types of image processing are, for example, correction of an image having distortion due to the distortion aberration of an imaging lens, an image having unnatural perspective distortion of a subject due to high-angle or overhead photography, generation of an output image with the viewpoint changed from the viewpoint of a captured image, mirror-image conversion of a captured image, and electronic zooming. Embodiments of the present invention also relate to an imaging apparatus that uses the image processing method. | 05-26-2011 |
20130201569 | IMAGE PICKUP APPARATUS ELECTRONIC DEVICE AND IMAGE ABERRATION CONTROL METHOD - An optical system comprising an aberration control optical system is disclosed. An aberration control optical system is operable to produce an image aberration, and an aperture stop is operable to limit a light beam passing through the aberration control optical system. An image pickup device is operable to capture an object image passing through the aberration control optical system, and the aberration control optical system provides inflection points within a diameter of the aperture stop to obtain a depth extending effect. | 08-08-2013 |
Patent application number | Description | Published |
20090046336 | HOLOGRAM MULTIPLEX RECORDING AND METHOD, AND HOLOGRAM REPRODUCING DEVICE AND METHOD - A multiplexed holographic recording apparatus of the present invention records multiplexed holograms in a plurality of recording regions that are formed on a holographic recording medium. In particular, the apparatus first records a predetermined number of multiplexed holograms in each of the recording regions formed in a predetermined range or an overall range of the holographic recording medium through holographic recording performed N times, and then performs the (N+1)th holographic recording in each recording region formed in the predetermined range or the overall range. When n other recording regions (where n=0, 1, 2, . . . ) are superimposed on each recording region formed on the holographic recording medium, a difference in the degree of multiplexing between the recording regions formed in the predetermined range or the overall range of the holographic recording medium does not exceed a predetermined value of n+1. | 02-19-2009 |
20090103176 | Laser Image Display Device and Laser Image Display Screen - A laser image display device and a laser image display screen used for the laser image display device. The laser image display device is provided with a laser light source for emitting laser beams and a laser image display screen ( | 04-23-2009 |
20090290202 | HOLOGRAM RECORDING MEDIUM AND HOLOGRAM RECORDING/REPRODUCTION DEVICE - A hologram recording medium has a substrate and a hologram recording layer into or from which information is recorded or reproduced by a hologram, and a concavo-convex pattern having a reflection layer that transmits hologram recording/reproducing light and reflects light having a longer wavelength than the hologram recording/reproducing light is formed inside the hologram recording medium. | 11-26-2009 |
20090303856 | OPTICAL STORAGE MEDIUM AND OPTICAL INFORMATION APPARATUS - Disclosed is an arrangement that enables to keep a relative positional relation between a beam for servo control and a beam for information recording/reproduction constant concerning focusing control and tracking control, even if the two beams are different from each other. An optical storage medium has a reflection surface for reflecting a first beam having a first wavelength, and reflecting a second beam having a second wavelength different from the first wavelength; and an information storage layer for recording information as an interference pattern by incidence of the first beam, or reproducing the information from a wave surface based on the interference pattern. The reflection surface is formed with plural marks or guide grooves usable in a tracking operation or a focusing operation by irradiation of the second beam. The information storage layer is partially formed, in advance, with a reference interference pattern which is reproduced when the first beam is irradiated, and which is used as a reference for correcting the relative positional relation between the first beam and the second beam. | 12-10-2009 |
20100165307 | LASER IMAGE DISPLAY, AND OPTICAL INTEGRATOR AND LASER LIGHT SOURCE PACKAGE USED IN SUCH LASER IMAGE DISPLAY - A laser image display comprising a laser light source emitting laser light, a beam deflector element for receiving laser light and deflecting its advancing direction, a beam deflecting element control section for controlling the degree of deflection performed by the beam deflector element, an optical integrator for receiving and guiding the deflected laser light to output from its outputting end face, a pseudo surface light source element for scattering the deflected laser light, and a modulation element for receiving and modulating the laser light scattered by the false surface light source element. | 07-01-2010 |