Patent application number | Description | Published |
20090009886 | OPTICAL PICKUP AND OPTICAL DISK DEVICE HAVING THIS PICKUP - An optical pickup according to the present invention includes a plurality of light sources for emitting a plurality of light beams including first and second light beams of respectively different wavelengths, an objective lens for converging the plurality of light beams, and a grating structure shaped axisymmetrically with respect to the optical axis of the objective lens. P | 01-08-2009 |
20090028036 | OPTICAL DISC DEVICE - The invention permits stable tracking with few control errors, uninfluenced by stray light reflected by signal surfaces other than the signal surface being used for focusing during recording and playback of a multilayer disc. To this end, the optical splitter element of the optical disc device according to the present invention has first areas ( | 01-29-2009 |
20090238051 | OPTICAL DISC DRIVE - A tracking error signal is generated with stability without being easily affected by a distribution fluctuation of light reflected from an optical disc or by a lens shift. | 09-24-2009 |
20090268269 | THREE-DIMENSIONAL VIDEO DISPLAY APPARATUS - In a three-dimensional video display apparatus, accommodation and convergence among physiological characteristics of eyes are abandoned, thereby resulting in generation of unnatural three-dimensional video. For example, even when eyes are moved, a screen is not changed, and a cardboard effect and/or a miniature garden effect may be caused, so that the eyes may be greatly fatigued. Light emission sources | 10-29-2009 |
20090268583 | INFORMATION RECORDING DEVICE AND INFORMATION REPRODUCING DEVICE - An information recording/reproducing device includes a radiation light source | 10-29-2009 |
20090274022 | OPTICAL DISC DEVICE - A focus error signal is generated by a first-order diffracted light diffracted by regions | 11-05-2009 |
20090279403 | OPTICAL DISC DEVICE - Light emitted from a radiation light source | 11-12-2009 |
20100039686 | HOLOGRAM PATTERN GENERATION METHOD AND MULTIPLE LIGHT POINTS GENERATION APPARATUS - In order to change the number of light points and light intensities and to move positions of the light points in a real-time manner, an extremely large capacity of a memory is required. In a method according to the present invention, a memory ( | 02-18-2010 |
20100046236 | SHEET AND LIGHT EMITTING DEVICE - A sheet and a light emitting device are provided which also emit light having an incident angle larger than or equal to a critical angle to significantly increase light extraction efficiency, prevent ambient light reflection, and suppress the occurrence of a distribution of light intensity varying depending on the direction and an imbalance in color. The light emitting device has a surface structure ( | 02-25-2010 |
20100110548 | DIFFRACTIVE OPTICAL ELEMENT AND METHOD OF MAKING THE SAME - A diffractive optical element according to the present invention includes: a lens body | 05-06-2010 |
20100135146 | OPTICAL PICKUP DEVICE AND OPTICAL DISC DEVICE - When first-order diffracted beams leak into a region, which is for receiving only a zeroth-order diffracted beam from an optical disc, due to positional displacement between an objective lens and a hologram element, an offset compensation signal includes an AC component, the offset compensation signal preferably including a DC component only. Accordingly, there may be caused deterioration in a modulation degree of the tracking error (TE) signal. A partial light shielding element | 06-03-2010 |
20100176473 | IMAGING PHOTODETECTION DEVICE - An imaging photodetection device includes a plurality of photodetectors ( | 07-15-2010 |
20100188537 | SOLID-STATE IMAGING DEVICE - Light-splitting elements are arranged in at least two columns and two rows to form two pairs | 07-29-2010 |
20110007179 | IMAGE CAPTURE DEVICE - The solid state image sensor of this invention includes multiple units, each of which includes first and second photosensitive cells | 01-13-2011 |
20110080737 | SHEET, LIGHT EMITTING DEVICE, AND METHOD FOR PRODUCING THE SHEET - A transparent sheet usable in the state where one of surfaces thereof is adjacent to a light emitting body, wherein the other surface of the sheet is divided into a plurality of tiny areas δ having such a size that a maximum circle among circles inscribed thereto has a diameter of 0.5 μm or greater and 3 μm or less with no gap; the tiny areas δ include a plurality of tiny areas δ | 04-07-2011 |
20110080738 | OPTICAL SHEET, LIGHT-EMITTING DEVICE, AND METHOD FOR MANUFACTURING OPTICAL SHEET - A surface of a transparent substrate | 04-07-2011 |
20110090697 | SHEET AND LIGHT EMITTING DEVICE - A light emitting device | 04-21-2011 |
20110133624 | SHEET AND LIGHT EMITTING APPARATUS - A sheet of the present invention is a sheet which is to be used such that light from a light emitting body impinges on one of surfaces of the sheet and outgoes from the other surface. The other surface of the sheet includes a plurality of minute regions | 06-09-2011 |
20110141309 | IMAGING APPARATUS AND METHOD FOR PRODUCING THE SAME, PORTABLE EQUIPMENT, AND IMAGING SENSOR AND METHOD FOR PRODUCING THE SAME - A plurality of imaging regions are provided in one-to-one correspondence with a plurality of optical systems and are disposed on optical axes of the respective optical systems. Each imaging region has a plurality of pixels. The imaging apparatus further comprises an origin detecting means for detecting an origin of each imaging region, a pixel position specifying means for specifying positions of a plurality of pixels included in each imaging region using the origin as a reference, and a combination means for combining a plurality of images captured by the respective imaging regions. Thereby, it is possible to make a thin imaging apparatus capable of being easily assembled. | 06-16-2011 |
20110164156 | IMAGE PICKUP DEVICE AND SOLID-STATE IMAGE PICKUP ELEMENT - A solid-state image sensor according to the present invention includes: a semiconductor layer | 07-07-2011 |
20110192962 | IMAGING PHOTODETECTION DEVICE - An imaging photodetection device ( | 08-11-2011 |
20110249345 | OPTICAL ELEMENT - An optical element according to the present invention is an optical element including: a first light transmitting layer having a first sawtooth blazed surface | 10-13-2011 |
20120063145 | SHEET AND LIGHT-EMITTING DEVICE - A transparent sheet for use with a light emitting body with one of surfaces of the transparent sheet being adjacent to the light emitting body, wherein the other surface of the sheet is divided into a plurality of minute regions δ, a largest inscribed circle of the minute regions δ having a diameter from 0.2 μm to 1.5 μm, each of the minute regions δ being adjoined by and surrounded by two or more other ones of the plurality of minute regions δ, the plurality of minute regions δ include a plurality of minute regions δ | 03-15-2012 |
20120092769 | DIFFRACTIVE LENS - A diffractive lens according to the present invention has the function of focusing light. The diffractive lens has a side on which a diffraction grating is arranged on either an aspheric surface or a spherical surface in its effective area. The diffraction grating has n | 04-19-2012 |
20120113518 | DIFFRACTION GRATING LENS AND IMAGE CAPTURE APPARATUS USING THE SAME - A diffraction grating lens of the present invention includes a lens base | 05-10-2012 |
20130107691 | OPTICAL PICKUP AND OPTICAL DISC DEVICE INCLUDING THE SAME | 05-02-2013 |
20130264470 | LIGHT ACQUISITION SHEET AND ROD, AND LIGHT RECEIVING DEVICE AND LIGHT EMITTING DEVICE EACH USING THE LIGHT ACQUISITION SHEET OR ROD - A light-trapping sheet of the present invention includes: a light-transmitting sheet | 10-10-2013 |
20130299684 | LIGHT-TRAPPING SHEET AND ROD, AND LIGHT-RECEIVING DEVICE AND LIGHT-EMITTING DEVICE USING THE SAME - A light-trapping sheet of the present disclosure includes: a light-transmitting sheet; and light-coupling structures arranged in an inner portion of the light-transmitting sheet. The light-coupling structure includes first, second and third light-transmitting layers. A refractive index of the first and second light-transmitting layers is smaller than that of the light-transmitting sheet; and a refractive index of the third light-transmitting layer is larger than those of the first and second light-transmitting layers. The third light-transmitting layer has a diffraction grating parallel to the surfaces of the light-transmitting sheet. The light-trapping sheet further includes a transparent cover sheet opposing at least one of the surfaces of the light-transmitting sheet with a gap interposed therebetween. | 11-14-2013 |
20130299685 | LIGHT-RECEIVING DEVICE HAVING LIGHT-TRAPPING SHEET - A light-receiving device of the present disclosure includes a light-trapping sheet, and a photoelectric conversion section optically coupled thereto. The light-trapping sheet includes: a light-transmitting sheet; and a plurality of light-coupling structures arranged in an inner portion of the light-transmitting sheet. The light-coupling structure includes first, second and third light-transmitting layers. A refractive index of the first and second light-transmitting layers is smaller than that of the light-transmitting sheet; and a refractive index of the third light-transmitting layer is larger than those of the first and second light-transmitting layers. The third light-transmitting layer has a diffraction grating parallel to the light-transmitting sheet. At least a part of the photoelectric conversion section is located along an outer edge of at least one of the surfaces of the light-transmitting sheet. | 11-14-2013 |
20130306844 | LIGHT-TRAPPING SHEET, AND LIGHT-RECEIVING DEVICE AND LIGHT-EMITTING DEVICE USING THE SAME - A light-trapping sheet of the present disclosure includes: a plurality of light-transmitting sheets each having first and second principal surfaces; and a plurality of light-coupling structures arranged in an inner portion of each of the plurality of light-transmitting sheets at a first and second distance from the first and second principal surfaces, respectively. Each of the plurality of light-coupling structures includes a first light-transmitting layer, a second light-transmitting layer, and a third light-transmitting layer sandwiched therebetween. A refractive index of the first and second light-transmitting layers is smaller than a refractive index of the light-transmitting sheet; and a refractive index of the third light-transmitting layer is larger than the refractive index of the first and second light-transmitting layers. The third light-transmitting layer has a diffraction grating parallel to the first and second principal surfaces of the light-transmitting sheet. | 11-21-2013 |
20140050441 | LIGHT-TRAPPING SHEET AND ROD, AND LIGHT-RECEIVING DEVICE AND LIGHT-EMITTING DEVICE USING THE SAME - A light-trapping sheet includes: a light-transmitting sheet having first and second principal surfaces; and a plurality of light-coupling structures arranged in an inner portion of the light-transmitting sheet, wherein: each of the plurality of light-coupling structures includes a first light-transmitting layer, a second light-transmitting layer, and a third light-transmitting layer sandwiched therebetween; a refractive index of the first and second light-transmitting layers is smaller than a refractive index of the light-transmitting sheet; a refractive index of the third light-transmitting layer is larger than the refractive index of the first and second light-transmitting layers; and the third light-transmitting layer has a two-dimensional diffraction grating parallel to the first and second principal surfaces of the light-transmitting sheet. | 02-20-2014 |
20140055650 | SOLID-STATE IMAGE SENSOR - This solid-state image sensor includes an array of photosensitive cells and an array of dispersive elements. The photosensitive cell array is comprised of a plurality of unit blocks | 02-27-2014 |
20140078355 | SOLID-STATE IMAGE SENSOR - This solid-state image sensor includes an array of photosensitive cells and an array of dispersive elements. The photosensitive cell array is comprised of a plurality of unit blocks | 03-20-2014 |
20140124650 | IMAGING DEVICE - The imaging device disclosed herein includes: a plurality of photodetection sections | 05-08-2014 |
20140158183 | CONDENSING LENS ARRAY, AND SOLAR CELL PROVIDED WITH SAME - A concentrating lens array according to the present disclosure includes a plurality of unit structures arranged at least one-dimensionally. Each unit structure includes: a first surface through which light enters inside of the structure; a second surface which reflects the light that has entered the structure through the first surface; a third surface which reflects the light that has been reflected from the second surface; and a fourth surface which lets the light that has been reflected from the third surface go out of the structure. In each unit structure, the second and third surfaces are located between an incident plane including the first surface and an emitting plane including the fourth surface. At least one of the second and third surfaces reflects the light after having converged the incoming light. When viewed from over the incident plane, the second surface of each unit structure is laid upon the third surface of an adjacent unit structure, and is located closer to the incident plane than the third surface of the adjacent unit structure is. | 06-12-2014 |
20140203700 | LIGHT EMITTING DEVICE AND LIGHT SHEET - A light-emitting device disclosed herein includes: an emission layer; a diffraction grating structure including a diffraction grating; and a diffusion layer having a structure for diffusing light which is transmitted from one face to another face. The light going out from the emission layer has a central wavelength λ. The diffraction grating has a period p which is not less than 1.0λ and not more than 3.5λ. The diffusion layer has a haze of 80% or more and a total light transmittance of 80% or less. | 07-24-2014 |
20140263968 | COLOR IMAGING DEVICE - An imaging apparatus | 09-18-2014 |
20140284455 | SOLID-STATE IMAGING ELEMENT, IMAGING DEVICE, AND SIGNAL PROCESSING METHOD - This solid-state image sensor includes a photosensitive cell array including first through fourth photosensitive cells | 09-25-2014 |
20140327783 | LIGHT-CONDENSING UNIT, SOLID-STATE IMAGE SENSOR, AND IMAGE CAPTURE DEVICE - A solid-state image sensor according to an embodiment of the present disclosure includes a photodetector array | 11-06-2014 |
20140333796 | SOLID-STATE IMAGING ELEMENT AND IMAGING DEVICE - This solid-state image sensor includes a dispersing element array which is arranged to face a photosensitive cell array and which includes a plurality of high-refractive-index transparent portions, a low-refractive-index transparent layer that fills a gap between the high-refractive-index transparent portions, and pairs of dispersing elements arranged to face multiple unit blocks of the photosensitive cell array. Each pair of dispersing elements is comprised of: a first dispersing element which includes one of the high-refractive-index transparent portions and which splits incoming light into two light rays representing first and second color components, respectively; and a second dispersing element which includes another one of the high-refractive-index transparent portions and which splits the incoming light into two light rays representing third and fourth color components, respectively. The first dispersing element makes the light ray representing the first color component incident on the first photosensitive cell and also makes the light ray representing the second color component incident on a pair of the second photosensitive cells which are adjacent to the first photosensitive cell. The second dispersing element makes the light ray representing the third color component incident on the third photosensitive cell and also makes the light ray representing the fourth color component incident on a pair of the fourth photosensitive cells which are adjacent to the third photosensitive cell. | 11-13-2014 |