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7626152 |
Beam director and control system for a high energy laser within a conformal window
A beam control system and method. The system includes an illuminator for providing a first beam of electromagnetic energy at a first wavelength; a source for providing a second beam of...
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7550701 |
Non-linear wavefront coding systems and methods
Systems and methods reduce aberrations in a wavefront imaged by an optical system having a non-linear detector. A wavefront of electromagnetic radiation from an object imaged to the non-linear...
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7495200 |
Holographic adaptive optic system
A holographic adaptive optic system for correcting the wavefront of a light. A phase correction device with a plurality of pixels in the path of the light. A holographic wavefront sensor in the...
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7479966 |
Method and apparatus for super montage large area spectroscopic imaging
The disclosure relates to Method and Apparatus for Super Montage Large area Spectroscopic Imaging. In one embodiment of the disclosure, a method for producing a spectroscopic image of an object...
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7471430 |
Holographic image corrector
The invention provides a holographic image corrector in a microscope, which employs an optical system that has as an objective a lens or mirror. The characteristics of the objective are recorded by...
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7450745 |
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...
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7407103 |
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...
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7319783 |
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...
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7317482 |
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...
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7298535 |
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...
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7262890 |
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...
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7224501 |
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...
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7123413 |
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...
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7102804 |
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...
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7085027 |
Image combiner and image display
The light from the image forming element 2 is reflected by the PBS 8 , and is incident on the λ/4 plate 7 so that this light is converted into circularly polarized light. Subsequently, the...
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7075724 |
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...
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6980831 |
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...
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6961162 |
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...
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6950215 |
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...
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6891615 |
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.
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6885484 |
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...
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6873733 |
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...
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6867889 |
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...
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6829091 |
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...
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6809846 |
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...
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6788442 |
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...
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6710902 |
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...
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6595648 |
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 )...
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6570681 |
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...
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6522465 |
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...
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6522448 |
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...
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6522311 |
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...
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6426812 |
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...
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6381044 |
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...
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6331904 |
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...
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6307679 |
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...
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6292278 |
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...
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6259562 |
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...
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6236509 |
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...
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6181448 |
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...
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6172779 |
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...
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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...
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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...
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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...
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6043935 |
Wavelength sensitive beam combiner with aberration correction
A wavelength sensitive hologram which combines the 780 nm laser beam and the 650 nm laser beam to produce a compact DVD optical pickup. The 780 nm laser beam is incident on the hologram at an angle...
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6020984 |
Light beam scanning apparatus using a rotating hologram and a fixed hologram plate
A high-resolution light-beam scanning apparatus utilizing only mass-producible holograms instead of utilizing auxiliary optical systems such as an optical lens or a mirror having curvature, and...
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5995250 |
Method for manufacturing light beam scanning apparatus
A method of manufacturing a fixed hologram plate of a light-beam scanning apparatus for diffracting a light incident from a light source portion by a rotatable hologram, scanning by the diffracted...
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5986779 |
Multiple focus lens, an optical head apparatus and an optical information recording-reproducing apparatus
Coma of an objective lens occurs depending on the lens-forming condition when plural disks of different substrate thickness are recorded and reproduced. An objective lens according to this...
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5986778 |
Hologon deflector system having dispersive optical elements for scan line bow correction, wavelength shift correction and scanning spot ellipticity correction
Bow can be minimized by an auxiliary grating in a post deflection path of the diffracted beam from the hologon which is disposed in non-parallel relationship to the plane of rotation of the...
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5978110 |
Holographic optical grating and method for optimizing monochromator configuration
This invention comprises a novel apparatus for recording a holographic groove pattern on a diffraction grating blank. The recording apparatus is configured using newly developed groups of...
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