Patents in subclass Optical: Systems And Elements/With Aberration Correction
Parent class: Optical: Systems And Elements
| Number | Patent title | Issue Date |
|---|---|---|
| 07407103 | Bioptical holographic 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... |
08/05/2008 |
| 07408687 | Beam shaping prior to harmonic generation for increased stability of laser beam shaping post harmonic generation with integrated automatic displacement and thermal beam drift compensation A laser beam delivery system for transforming a laser energy profile into a desired laser beam output energy profile. The laser beam delivery system comprises a laser for generating a laser beam along a beam path, at least one... |
08/05/2008 |
| 07319783 | Methods for minimizing aberrating effects in imaging systems A method for reducing optical distortion within an optical system employing adaptive optics, includes modifying phase of a wavefront of the optical system with a wavefront coding element. Image data of the optical system is post-processed... |
01/15/2008 |
| 07317482 | Distance calculating method and imaging device A distance calculation method and an imaging device that can be applied to a digital camera. The method includes calculating a distance between a point corresponding to an optical axis of a lens sub-system of the imaging device and an... |
01/08/2008 |
| 07298535 | Digital situation indicator A personal monitoring system to be worn by an individual in a hazardous situation comprises an enclosed face mask which includes a transparent shield over at least the eves a sensor module secured to the individual which includes a... |
11/20/2007 |
| 07262890 | Observation optical system An observation optical system has an entrance surface, a reflecting surface, and an exit surface. At least one of these surfaces is configured as a free-formed surface, to which a volume holographic optical element (HOE) is closely... |
08/28/2007 |
| 07260251 | Systems and methods for minimizing aberrating effects in imaging systems An imaging system for reducing aberrations from an intervening medium, and an associated method of use are provided. The system may be an optical or task-based optical imaging system including optics, such as a phase mask, for imaging a... |
08/21/2007 |
| 07224501 | Light-emitting device and apparatus having the same A light-emitting device is disclosed which allows efficient irradiation of light from a plurality of light sources to achieve a predetermined light emission characteristic and has a small size. The light-emitting device has an optical... |
05/29/2007 |
| 07123413 | DOE-based systems and devices for producing laser beams having modified beam characteristics Novel methods are disclosed for designing and constructing miniature optical systems and devices employing light diffractive optical elements (DOEs) for modifying the size and shape of laser beams produced from a commercial-grade laser... |
10/17/2006 |
| 07102804 | Optical data communication The present invention employs a method for transmitting and/or receiving high data bandwidths at reduced cost by employing a holographically corrected telescope for transmitting or receiving data-carrying signals remotely, at IR, optical... |
09/05/2006 |
| 07085027 | Image combiner and image display The light from the image forming element 2 is reflected by the PBS 8, and is incident on the .lamda./4 plate 7 so that this light is converted into circularly polarized light. Subsequently, the light is subjected to a... |
08/01/2006 |
| 07075724 | Compensator optics to improve the stability of beam delivery systems that utilize beam shaping technology A compensator/remapper and method for compensation and remapping of a laser beam for control and correction of laser pointing and thermal drift instability in a laser beam delivery system including a laser generating a laser beam and a... |
07/11/2006 |
| 07043073 | Distortion correcting rendering techniques for autostereoscopic displays Characterization of hologram elements (hogels) produced using specially designed test pattern images provides more accurate information that can be used to render images for use in hogel production. Once a test pattern is selected, one or... |
05/09/2006 |
| 07031573 | Fiber optic devices having volume Bragg grating elements Fiber optic devices including volume Bragg grating (VBG) elements are disclosed. A fiber optic device may include one or more optical inputs, one or more VBG elements, and one or more optical receivers. Methods for manufacturing VBG... |
04/18/2006 |
| 06980831 | Radio communication base state system including optical advanced base station A wireless communication base station system of the present invention includes a wireless key base station, an optical forward base station, and an optical transmitter which connects the wireless key base station and the optical forward... |
12/27/2005 |
| 06961162 | Observation optical system using volume hologram An observation optical system comprises an image display element 5 and an eyepiece optical system which introduces an image formed by the image display element 5 to a center of an eye of an observer without forming an intermediate image,... |
11/01/2005 |
| 06950215 | Method and apparatus for monitoring optical switches An optical switching apparatus is provided. Generally, a plurality of optical input switches is provided. A plurality of optical output switches is provided. A plurality of central optical switches connected between the plurality of input... |
09/27/2005 |
| 06891615 | Conical diffraction grazing incidence spectrometer and diffraction grating for use in the spectrometer A conical diffraction grazing incidence spectroscope for performing wavelength scanning by rotating a diffraction grating about an axis set parallel to groves in a grazing surface of the grating. |
05/10/2005 |
| 06885484 | Optical system and method for fabricating a holographic optical element A simple, compact optical system is provided that includes a transmissive optical element and a HOE but that nevertheless does not require an extra optical element for the correction of chromatic aberration. The HOE is designed to have... |
04/26/2005 |
| 06873733 | Combined wavefront coding and amplitude contrast imaging systems The present invention provides extended depth of field or focus to conventional Amplitude Contrast imaging systems. This is accomplished by including a Wavefront Coding mask in the system to apply phase variations to the wavefront... |
03/29/2005 |
| 06867889 | Transceiver for a wireless optical telecommunication system A holographic optical element (HOE) device is mounted in wireless optical telecommunication system transceiver. The HOE device includes a developed emulsion material having an interference pattern recorded thereon, sandwiched between a... |
03/15/2005 |
| 06829091 | Optical system and optical instrument with diffractive optical element An optical system for forming an image of an object. The optical system includes an optical element, which is deformed by the weight thereof, and at least one optical member for preventing a change in optical performance of the optical... |
12/07/2004 |
| 06825980 | DOE-based systems and devices for producing laser beams having modified beam characteristics Novel methods are disclosed for designing and constructing miniature optical systems and devices employing light diffractive optical elements (DOEs) for modifying the size and shape of laser beams produced from a commercial-grade laser... |
11/30/2004 |
| 06809846 | Optical switch and optical network Disclosed is an optical switch for transmitting or shutting down an input light signal in accordance with a set switching state. The optical switch comprises first and second optical amplifiers connected in cascade. When an optical fiber... |
10/26/2004 |
| 06805490 | Method and system for beam expansion in a display device A planar substrate having a first diffractive element for coupling light waves of different colors into the substrate and guiding the light waves by successive internal reflections. A second diffractive element, disposed on the substrate,... |
10/19/2004 |
| 06801347 | Observation optical system using volume hologram An observation optical system comprises an image display element and an eyepiece optical system which introduces an image formed by the image display element to a center of an eye of an observer without forming an intermediate image, so... |
10/05/2004 |
| 06788442 | Optical device for helmet visor comprising a diffractive mirror An optical device for a system presenting collimated images through an off-axis spherical concave mirror. An image can be presented to a user with correction of eccentric distortion caused by the off-axis spherical concave mirror without... |
09/07/2004 |
| 06710902 | Observation optical system An observation optical system includes an image display element, a relay optical system having a plurality of lenses 4 and a first reflection-type volume hologram element (HOE), and an eyepiece optical system having a second... |
03/23/2004 |
| 06650448 | Observation optical system using volume hologram An observation optical system comprises an image display element 5 and an eyepiece optical system which introduces an image formed by the image display element 5 to a center of an eye of an observer without forming an intermediate image,... |
11/18/2003 |
| 06636356 | Observation optical system An observation system having a positive refracting power as a whole comprises a first unit G1 with a positive refracting power and a second unit G2 and forms an exit pupil for observation of an electronic image displayed on an image... |
10/21/2003 |
| 06621606 | Optical system and device using the same The invention relates to a viewing and an image pickup optical system for display devices, which can be used with high efficiency at a plurality of wavelengths and enables bright images to be viewed with satisfactory color... |
09/16/2003 |
| 06595648 | Projection display A projection display comprising: a transmissive spatial light modulator (10); an illuminator (1, 20, 21, 30) for illuminating the modulator from the front thereof; and a hologram (32) disposed at the rear of the modulator for imaging and... |
07/22/2003 |
| 06570681 | System and method for dynamic optical switching using a diffractive optical element An optical crossbar switch system includes: a mask comprising multiple patterns, wherein at least one of the multiple patterns is a diffractive pattern; and a spatial light modulator positioned to receive at least one optical input beam... |
05/27/2003 |
| 06522311 | Image information displaying system and hologram display apparatus An image information displaying system comprises a transparent support, a hologram screen attached to the transparent support, a radiation unit for radiating image information on the hologram screen, a sensor for detecting the ambient... |
02/18/2003 |
| 06522448 | Optical element An optical element has a small reflection loss of light on a boundary surface between a photonic crystal and the normal medium. The optical element includes: a normal medium region having a first refractive index; a photonic crystal... |
02/18/2003 |
| 06522465 | Transmitting spectral filtering of high power extreme ultra-violet radiation In one embodiment of the invention, a transmitting spectral filter includes a thin film layer and a grating structure. The thin film layer is made of transmitting material to transmit a first incident radiation within a first band around... |
02/18/2003 |
| 06462875 | Diffractive optical element A diffractive optical element has a plurality of step-like patterns each having surface levels of a number less than eight, the step-like patterns being disposed in combination to provide a function of a step-like structure of eight or... |
10/08/2002 |
| 06426812 | Hologram color filter, and its fabrication method The present invention provides a hologram color filter having a drastically decreased dependence of diffraction efficiency on wavelength and well corrected for a color balance among the three colors R, G and B comprising an array of... |
07/30/2002 |
| 06381044 | Method and apparatus for correcting aberrations in photon collection devices A cover plate on a holographic optical element (HOE) device corrects for aberrations, such as spherical aberrations. The HOE device includes an emulsion material, having a recorded interference pattern that can perform diffraction,... |
04/30/2002 |
| 06331904 | Reflection optics reference beam telescope A reference beam telescope, which is also referred to as a relay imaging system for a reference beam, using reflection optics is disclosed. The relay imaging system according to the present invention comprises at least one concave mirror... |
12/18/2001 |
| 06307679 | Formation of a refractive index grating An apodised refractive index grating is recorded in a photosensitive optical fiber by forming first and second component interference patterns with different pitches, that are recorded in the grating such as to result in apodisation. The... |
10/23/2001 |
| 06292278 | Beam scanning system adopting deflection disc A beam scanning system including: a light source; a deflection disc rotatably installed over the light sources and having a hologram pattern on each of the upper and lower surfaces thereof, for diffracting beams emitted from the light... |
09/18/2001 |
| 06259562 | Device including an optical element with an integral surface diffuser A device has a carrier and an optical element supported by the carrier. The optical element has a macro-optical characteristic and at least one surface. A light shaping surface microstructure is integral on the surface of the optical... |
07/10/2001 |
| 06252686 | Optical pickup device An optical pickup device in which a light beam radiated from a semiconductor laser element is converted by a collimator lens into collimated light beam which is converged by an objective lens so as to be illuminated on an optical disc. A... |
06/26/2001 |
| 06236509 | Diffractive optical system with synthetic opening and laser cutting device incorporating this system An optical device for focusing a light beam. The device includes a Fourier diffractive element that can separate an incident beam into n beams along n directions which are symmetric about an optical axis. The device also includes a... |
05/22/2001 |
| 06181448 | Multi-laser scanning unit A multi-laser scanning unit (LSU) in which scanning lines incident parallel onto a photoreceptor have the same scanning direction. The multi-laser scanning unit includes: a driving source for providing a rotatory force; a deflection disk... |
01/30/2001 |
| 06172779 | Optical pickup device including a hologram lens section with an oval diffraction grating pattern A two-focal-point pickup device capable of suppressing the generation of glitch or bump in reproduced signal. The optical pickup device irradiates a light beam emitted from a light source onto an optical recording medium to form a light... |
01/09/2001 |
| 6128134 | Integrated beam shaper and use thereof A substrate having an optical element on an input surface thereof receives a light beam not having a desired beam shape and shapes the light beam into a predetermined intensity distribution. The substrate may further include a second... |
10/03/2000 |
| 6104511 | Reflector-based off-axis optical system for holographic storage The holographic storage and retrieval system according to the present invention comprises one convex reflector and one concave reflector having the same optical axis. The reflective surfaces of the two reflectors are opposite each other.... |
08/15/2000 |
| 6064500 | Holographic optical device and method of manufacture A method of producing an optical element including a photopolymer layer between two holograms is disclosed. The holograms have the same diffraction spacing and refractive index, but the first hologram has an efficiency of about one-half... |
05/16/2000 |