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| Number | Title | Issue Date |
| 8115999 | Polarizing lamp A polarizing lamp includes a polarization beam splitter, a metallic grating reflector having metallic gratings with a trapezoidal profile, and an unpolarized light source positioned between the polarization beam splitter and the metallic grating reflector. ... | 02/14/2012 |
| 7835080 | Antireflective member, optical element, display device, method of making stamper and method of making antireflective member using the stamper An antireflective member has an uneven surface pattern, in which unit structures are arranged in x and y directions at respective periods that are both shorter than the shortest wavelength of an incoming light ray, on the surface of a substrate and satisfies the fol... | 11/16/2010 |
| 7835081 | Diffractive optical element and bidirectional optical communication module using the same A diffractive optical element has a diffraction grating which multiplexes light beams of different wavelengths, and the diffraction grating has a binary structure in which the diffraction surface top part and the diffraction surface bottom part repeat a concave and ... | 11/16/2010 |
| 7729052 | Non-planar optical diffraction grating having an arbitrary parallel groove profile An optical diffraction grating having a superior ultra-precise non-planar surface shape desired in extremely sensitive and complex optical imaging devices (e.g. spectrometers or hyperspectral imagers) is provided. The optical diffraction grating comprises a substrat... | 06/01/2010 |
| 7408712 | Polarization-selectively blazed, diffractive optical element A polarization-selectively blazed, diffractive optical element including multiple contiguous blaze structures extending along a given geometrical path. Each structure has a width perpendicular to direction of extension greater than the Wavelength of the electromagne... | 08/05/2008 |
| 7367759 | Surface relief grating image machining process and product A surface relief grating (SRG) image machining process and/or product. For the SRG image machining process a material and a cutting tool are provided. The material is contacted by the cutting tool to a predetermined depth. The cutting tool is rotated to cut the mate... | 05/06/2008 |
| 7364085 | Identification document with printing that creates moving and three dimensional image effects with pulsed illumination Identification documents have a three dimensional or moving image effect to enable human verification of their authenticity. These effects are created by printing image layers of invisible inks, such as UV or IR fluorescing inks, each depicting an object in varying ... | 04/29/2008 |
| 7362486 | Optical scanning device with at least one resin lens for controlling a beam waist position shift A first optical system guides a light beam from a light source to an optical deflector, and a second optical system converges the light beam deflected by the optical deflector on a surface to be scanned. The first optical system includes at least one resin lens havi... | 04/22/2008 |
| 7355162 | Optical wavelength measuring device using guiding body and diffractive structure An optical characterization device has a guiding body and a diffractive structure integrated with it. The guiding body delivers radiation to the diffractive structure at a preselected angle and the diffractive structure diffracts at least a portion of radiation guid... | 04/08/2008 |
| 7339149 | Vehicle headlight control using imaging sensor A headlamp control system for a motor vehicle includes an imaging array sensor operable to sense light in a field of view forward of the motor vehicle and a control that is responsive to the imaging array sensor. The control is operable to identify at least one obje... | 03/04/2008 |
| 7325935 | Image sensing system for a vehicle An image sensing system for a vehicle includes an imaging sensor comprising a two-dimensional array of light sensing photosensor elements. The system includes a logic and control circuit comprising an image processor for processing image data derived from the imagin... | 02/05/2008 |
| 7325934 | Image sensing system for a vehicle An image sensing system for a vehicle includes an imaging sensor having a two-dimensional array of light sensing photosensor elements, and a logic and control circuit having an image processor for processing image data derived from the imaging sensor. The logic and ... | 02/05/2008 |
| 7319553 | Optical modulator module package structure Disclosed herein is an optical modulator module package structure. In the optical modulator module package structure, an optical modulator device and a drive integrated circuit device are flip-chip bonded to a substrate, and an opening of the substrate is blocked us... | 01/15/2008 |
| 7315419 | Dispersive element, diffraction grating, color display device, demultiplexer, and diffraction grating manufacture In a transmission grating as a dispersive element, diffraction efficiency is enhanced and manufacturing costs are considerably reduced. A dispersive element includes resin members for forming a diffraction grating, being composed of a plurality of diffraction gratin... | 01/01/2008 |
| 7312846 | Lithographic apparatus and device manufacturing method An off-axis alignment system in a lithographic projection apparatus uses broadband radiation to illuminate a phase grating on the wafer. The broadband radiation source may include fluorescent materials, e.g. Yag:Ce or ND:Yag crystals illuminated by excitation light.... | 12/25/2007 |
| 7311406 | Image sensing system for a vehicle An image sensing system for a vehicle includes an imaging sensor comprising a two-dimensional array of light sensing photosensor elements, preferably formed on a semiconductor substrate, and a logic and control circuit, preferably with at least a portion of the logi... | 12/25/2007 |
| 7301702 | Diffractive optical element and optical system including the same A diffractive optical element includes a plurality of diffraction gratings. A diffraction grating within the plurality of diffraction gratings includes a plurality of grating parts having a curved grating surface and grating tips which connect to define a curved env... | 11/27/2007 |
| 7297386 | Antireflection structure An antireflection structure (10) comprises a base (1), and a finely roughened antireflection part (2) formed in a surface of the base (1). The finely roughened antireflection part (2) includes a plurality of projections and depress... | 11/20/2007 |
| 7271956 | Diffractive optical element A diffractive optical element including a stack of first, second and third optical regions or a stack of first, second, third and fourth optical regions, a first relief pattern formed between the first and second optical regions, and a second relief patterns formed ... | 09/18/2007 |
| 7268948 | Optical element and optical scanning device using the same To obtain an optical element capable of obtaining uniform anti reflection characteristics over the whole optical surface having a finite curvature of the optical element, a plurality of convex optical pieces having an anti reflection function are provided on a surfa... | 09/11/2007 |
| 7262914 | Method and apparatus for generating and detecting duality modulated electromagnetic radiation A generator of duality modulated radiation, of which the irradiance, the wave intensity, or both, are varied from ordinarily equivalent levels, either for purposes of providing energy depleted or energy enriched radiation or for purpose of encoding an information si... | 08/28/2007 |
| 7245803 | Optical waveguide grating coupler An optical waveguide grating coupler for coupling light between a planar waveguide and an optical element such as an optical fiber. The optical waveguide grating coupler includes a grating comprising a plurality of elongate scattering elements. The optical waveguide... | 07/17/2007 |
| 7245432 | Dual diffraction-grating device A diffraction grating device (100) has both reflecting (108) and transmitting (106) gratings inter leaved to allow both transmission diffraction patterns and reflection diffraction patterns to be formed by means of the same device (102). ... | 07/17/2007 |
| 7230762 | Polarization phase difference plate The object of the present invention is to provide an excellent-quality polarization phase difference plate that enables, by a simple structure: decrease in light loss and in oscillation of the intensity of the transmitting emission light through effectively suppress... | 06/12/2007 |
| 7227459 | Vehicle imaging system A vehicle imaging system includes an imaging array sensor having a field of view directed outwardly from the vehicle and toward an external scene, first and second optic elements, and a control responsive to an output of the imaging array sensor. The imaging array s... | 06/05/2007 |
| 7210803 | Optical system, display optical system and image-taking optical system An optical system is disclosed with which higher magnification can be easily achieved and aberrations can be favorably corrected, yet is compact. The optical system includes a plurality of optical surfaces including a first surface which has at least a reflective ac... | 05/01/2007 |
| 7207700 | Near field lens with spread characteristics A near field lens is for an automotive light assembly, generally comprising a central body positioned between opposing side bodies. The central body extends in a vertical direction, while the side bodies are positioned on horizontal sides of the central body. The op... | 04/24/2007 |
| 7195387 | Device and method for emitting light with increased brightness using diffractive grating pattern A device and method for emitting light with increased brightness utilizes a lamp having a diffractive grating pattern. The diffractive grating pattern diffracts incident light that originates from a light source toward a light output region of the lamp. The diffract... | 03/27/2007 |
| 7184627 | Optical waveguide grating coupler incorporating reflective optical elements and anti-reflection elements An optical wavelength grating coupler incorporating one or more distributed Bragg reflectors (DBR) or other reflective elements to enhance the coupling efficiency thereof. The grating coupler has a grating comprising a plurality of scattering elements adapted to sca... | 02/27/2007 |
| 7164532 | Diffraction grating, light source unit applying the same therein, and optical head device employing the same A polarization diffraction grating includes two media having different orientation states arranged alternately and cyclically, wherein each boundary between the media forms an oblique rectangular shape. ... | 01/16/2007 |
| 7152796 | Bar code symbol scanning system having multiple scanning stations for producing a 3-D scanning volume free of substantially and temporally coincident scanning planes A holographic laser scanner of ultra-compact design capable of reading bar and other types of graphical indicia within a large scanning volume using holographic optical elements and visible laser diodes. The holographic optical elements are arranged on the scanning ... | 12/26/2006 |
| 7116453 | Optical processor Method and apparatus are disclosed for optical packet decoding, waveform generation, and wavelength multiplexing/demultiplexing using a programmed holographic structure. A configurable programmed holographic structure is disclosed. A configurable programmed holograp... | 10/03/2006 |
| 7051922 | Compact bioptical laser scanning system A bioptical holographic laser scanning system employing a plurality of laser scanning stations about a holographic scanning disc having scanning facets with high and low elevation angle characteristics, as well as positive, negative and zero skew angle characteristi... | 05/30/2006 |
| 7050237 | High-efficiency spectral purity filter for EUV lithography An asymmetric-cut multilayer diffracts EUV light. A multilayer cut at an angle has the same properties as a blazed grating, and has been demonstrated to have near-perfect performance. Instead of having to nano-fabricate a grating structure with imperfections no grea... | 05/23/2006 |
| 7046444 | Wave plate and optical device using the same The present invention provides a wave plate capable of obtaining preferable phase conversion characteristic over a wide wavelength range. The wave plate includes an aluminum oxide film having linear grating groove patterns. The period L (μm) and the duty ratio De o... | 05/16/2006 |
| 7035374 | Optical device for directing x-rays having a plurality of optical crystals Devices for improving the capturing and utilization of high-energy electromagnetic radiation, for example, x-rays, gamma rays, and neutrons, for use in physical, medical, and industrial analysis and control applications are disclosed. The devices include optics havi... | 04/25/2006 |
| 7025454 | Extended depth of field optics for human vision The present invention provides extended depth of field to human eyes by modifying contact lenses, intraocular implants, and/or the surface of the eye itself. This may be accomplished by applying selected phase variations to these optical elements (e.g., by varying s... | 04/11/2006 |
| 7009743 | Optical processor Method and apparatus are disclosed for optical packet decoding, waveform generation and wavelength multiplexing/demultiplexing using a programmed holographic structure. A configurable programmed holographic structure is disclosed. A configurable programmed holograph... | 03/07/2006 |
| 7006290 | Optical system and method of designing optical system An optical system includes a diffractive optical element and a refractive optical element. The diffractive optical element corrects a chromatic aberration flare component of wavelengths other than a predetermined wavelength (a design wavelength) remaining in the ref... | 02/28/2006 |
| 6975438 | Optically variable surface pattern An optically variable surface pattern (1) contains relief structures (9.1; 9.2; 9.3) for producing at least two representations (2; 3; 4). The relief structures (9.1; 9.2; 9.3) have a period length (L) of at least five micrometers and are... | 12/13/2005 |
