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| Number | Title | Issue Date |
| 8040604 | Imaging system and method for providing extended depth of focus, range extraction and super resolved imaging An imaging system is presented for imaging objects within a field of view of the system. The imaging system comprises an imaging lens arrangement, a light detector unit at a certain distance from the imaging lens arrangement, and a control unit connectable to the ou... | 10/18/2011 |
| 8004762 | Extended depth of field optical systems Systems and methods for generating an optical image include forming an optical image with at least one optical element of an optical imager while modifying wavefront phase. Modifying the phase does not reduce an optical bandpass limited by an aperture of the optical... | 08/23/2011 |
| 7936511 | Single laser illuminating and pointing systems Dual-function laser systems and methods are disclosed. In one implementation, an apparatus includes a laser source configured to emit a beam; an optical element spaced apart from the laser source; and a diffractive element positioned to diffract the beam to provide ... | 05/03/2011 |
| 7804646 | Method for decomposition of a customized DOE for use with a single exposure into a set of multiple exposures using standard DOEs with optimized exposure settings A method of determining diffractive optical elements to be utilized in an imaging process. The method includes the steps of defining a customized diffractive optical element which is based on a target pattern to be printed during the imaging process; decomposing the... | 09/28/2010 |
| 7593150 | Diffraction optical element, light beam detection device, optical scanner and image forming apparatus An optical element for diffracting a light beam includes a diffractive surface having a one-dimensional periodic structure. The periodic structure and transmissive diffraction efficiencies T′p(m) and T′s(m) of p- and s-polarized lights on the diffractive surface... | 09/22/2009 |
| 7583442 | Extended depth of field optical systems An imaging system is characterized at least by an ambiguity function (“AF”) and a point spread function (“PSF”). The AF is a function of parameters u and v related to a misfocus parameter ψ; the PSF is at least a function of ψ. The system includes (1) an i... | 09/01/2009 |
| 7554731 | Wavefront coded imaging systems An infrared imaging system for imaging infrared radiation from an object onto a detector includes optics configured for producing, with the infrared radiation, transverse ray intercept curves that are substantially straight, sloped lines. A wavefront coding element ... | 06/30/2009 |
| 7554732 | Wavefront coded imaging systems A singlet imaging system for imaging an object onto a detector includes a lens configured for producing transverse ray intercept curves which are substantially straight, sloped lines. A wavefront coding element is formed on a surface of the lens and configured such ... | 06/30/2009 |
| 7443440 | Color separator and imager A color separator includes a polarization converting section for converting an incoming light ray into a linearly polarized light ray such that the polarization direction of the linearly polarized light ray is selectable from a number of predetermined directions, an... | 10/28/2008 |
| 7443586 | Display device using single-panel diffractive light modulator Disclosed herein is a display device using a single-panel diffractive light modulator. The display device includes a light source unit, a condensing unit, an illumination unit, a diffractive light modulator, a projection unit, a filter unit, and a distortion correct... | 10/28/2008 |
| 7440158 | Direct optical image projectors An apparatus includes a reconfigurable spatial light modulator, a light source, and a transmission filter. The reconfigurable spatial light modulator is capable of producing spatially varying amplitude and/or phase modulations of an incident light wavefront. The lig... | 10/21/2008 |
| 7436595 | Extended depth of field optical systems A system for increasing the depth of field and decreasing the wavelength sensitivity and the effects of misfocus-producing aberrations of the lens of an incoherent optical system incorporates a special purpose optical mask into the incoherent system. The optical mas... | 10/14/2008 |
| 7418016 | Method and apparatus for modifying the spread of a laser beam An apparatus and method for modifying the spread of a laser beam. The apparatus comprises a laser source operable to generate a laser beam having a flux that exceeds a predetermined value and an optical train operable to modify the beam such that the flux of the bea... | 08/26/2008 |
| 7400449 | System and method for reduction of image artifacts for laser projectors A system and method is disclosed for reducing visibility of image artifacts caused by diffractive elements in a laser projector having a structured diffractive device. At least two diffracted orders of light can be selected from light emitted from the structured dif... | 07/15/2008 |
| 7391388 | Segmented spectrum imaging system and method A system and method for producing spectrally segmented images of object fields. In one embodiment the system includes an optical system that focuses light received from an object field along a focal plane with a field stop positioned within the optical system that h... | 06/24/2008 |
| 7391570 | Programmable optical processing device employing multiple controllable light modulator elements in fractional fourier transform planes A programmable optical processing device employing a plurality of controllable light modulator elements. First and second optical elements are positioned to create an optical region therebetween comprising a Fourier transform plane and at least one non-Fourier optic... | 06/24/2008 |
| 7388181 | Apparatus for adjusting applied voltage in display system using diffractive optical modulator Disclosed herein is an apparatus for adjusting applied voltage in a display system using a diffractive optical modulator. The apparatus for adjusting applied voltage can measure the intensity of diffracted light emitted from the diffractive optical modulator, and ad... | 06/17/2008 |
| 7369225 | Device and method for inspecting surfaces in the interior of holes A device and method for checking surfaces in the interior of holes, depressions, or the like. The device and method are developed in such a manner that a multicolor light beam can be produced with a light source, wherein a light beam, due to the chromatic aberration... | 05/06/2008 |
| 7348104 | System and method for fabrication and replication of diffractive optical elements for maskless lithography A method is disclosed for forming an array of focusing elements for use in a lithography system. The method involves varying an exposure characteristic over an area to create a focusing element that varies in thickness in certain embodiments. In further embodiments,... | 03/25/2008 |
| 7339714 | Variable blazed grating based signal processing A light processing system includes an array of optical signal processing devices. The array of processing devices are operable to receive at least some of a first signal part and to modulate the first signal part based at least in part on a control signal received f... | 03/04/2008 |
| 7320928 | Method of forming a stacked device filler Numerous embodiments of a stacked device filler and a method of formation are disclosed. In one embodiment, a method of forming a stacked device filler comprises forming a material layer between two or more substrates of a stacked device, and causing a reaction in a... | 01/22/2008 |
| 7317676 | Optical head device and optical information apparatus using this optical head device, and computer, optical disk player, car navigation system, optical disk recorder and optical disk server using this optical information apparatus Providing an objective lens with a large numerical aperture (NA), the present invention records or plays conventional optical disks such as CDs and DVDs at high light usage efficiency, using an optical head capable of recording or reproducing high-density optical di... | 01/08/2008 |
| 7301576 | Electronic imaging apparatus 1. An electronic imaging apparatus comprises an imaging optical system, and an imaging device which converts an object image obtained via the imaging system to an electric signal. All of medium of optical elements which is disposed in a space between a most object s... | 11/27/2007 |
| 7295504 | Beam shaping element, and light source unit and optical pickup using same A beam shaping element includes a set of diffraction gratings on each surface thereof, in such a manner that intervals between the gratings farer from a vicinity of an optical axis and nearer to a periphery are narrower, wherein each interval between the respective ... | 11/13/2007 |
| 7292519 | Optical head with lasers and mirrors in a recess formed in a substrate An integrated optical head records and reproduces information to and from optical discs of different types, including CD and DVD, with use of a single information recording/reproducing apparatus. The optical head has a plurality of semiconductor lasers of different ... | 11/06/2007 |
| 7292393 | Variable illuminator and speckle buster apparatus Disclosed is an apparatus for illuminating a sample. In one embodiment, this apparatus includes a laser for outputting an incident laser beam towards a sample and a first diffractive element having a plurality of diffraction pattern portions. The first diffractive e... | 11/06/2007 |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 7283307 | Common aperture vision system An optical device comprises a dichroic beamsplitter for splitting an object beam into a reflected beam having a first waveband and a transmitted beam having a second waveband; an astigmatism-correcting lens element, disposed in the optical path of the transmitted be... | 10/16/2007 |
| 7281805 | Projection-type display apparatus A thin-shaped projection-type display apparatus capable of displaying a high-quality image without causing any ghost image is provided. The projection-type display apparatus includes a screen having a prism, and a projection optical system for guiding image light to... | 10/16/2007 |
| 7247356 | Privacy screen for a display A privacy screen for a display (e.g., a LCD) includes having a polarizing film and a birefringent film is described. The privacy screen transmits substantial amounts of light emanating from the display in an orthogonal (or near-orthogonal) direction while not transm... | 07/24/2007 |
| 7247826 | Optical pickup apparatus An optical path coupling member aligns an optical axis directed to a light condensing member of the first wavelength light having a shortest wavelength with that of the third wavelength light having a longest wavelength. A diffraction element condenses +2nd order di... | 07/24/2007 |
| 7237940 | Light guide plate with subwavelength grating and backlight module using the same A light guide plate (30) has a light incident surface (305) for receiving light, a light emitting surface (301) for emitting light, a bottom surface (303) opposite to the light emitting surface, and side surfaces (307, 309, 311). A... | 07/03/2007 |
| 7232218 | Bifocal multiorder diffractive lenses for vision correction A bifocal multiorder diffractive lens having a lens body with one or more first regions having a first multiorder diffractive structure providing near vision correction, and one or more second regions having a second multiorder diffractive structure providing distan... | 06/19/2007 |
| 7231094 | Low-power signal processing using MEMS Apparatus and methods for performing a Fourier transform mechanically, using an array of one or more resonators. By tuning the resonators so that their natural frequencies correspond to harmonics of an input signal, the vibration of the resonators in response to the... | 06/12/2007 |
| 7224540 | Extended depth of field imaging system using chromatic aberration An imaging system (FIG. 3) is disclosed that has a wavelength dependent focal shift caused by longitudinal chromatic aberration in a lens assembly (203) that provides extended depth of field imaging due to focal shift (213,214) and increased res... | 05/29/2007 |
| 7218448 | Extended depth of field optical systems A system for increasing the depth of field and decreasing the wavelength sensitivity of an incoherent optical system incorporates a special purpose optical mask into the incoherent system. The optical mask has been designed to cause the optical transfer function to ... | 05/15/2007 |
| 7213921 | Color display device using dichroic filter A color display device is disclosed. The color display device includes an illumination lens system, a diffractive light modulation system, a combining system, a Fourier filter system, and a projection system. The illumination lens system converts a plurality of ligh... | 05/08/2007 |
| 7215461 | MEMS devices with increased damping for suspended movable structures In one embodiment, a light modulator includes a substrate and a number of modulator elements disposed above and spaced apart from the substrate. Each modulator element has an optically active portion adapted to receive light incident thereon, and a support portion o... | 05/08/2007 |
| 7209243 | Illumination device, and coordinate measuring instrument having an illumination device A coordinate measuring instrument includes a horizontally X-Y displaceable measurement stage for receiving a substrate with a feature that is to be measured, an illumination system, and a detector device. The illumination system includes a light source, an optical f... | 04/24/2007 |
| 7209218 | Exposure apparatus and method for manufacturing device using the exposure apparatus At least one exemplary embodiment is directed to an exposure apparatus which includes an illumination optical system configured to irradiate a mask with light from a light source, and a projecting optical system configured to project a pattern image of the mask onto... | 04/24/2007 |
