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| Patent # | Description |
|---|---|
| US-6,522,477 |
Endoscopic video camera with magnetic drive focusing The invention relates to a magnetic drive focusing device with at least one lens within a chamber and an adjuster with magnets outside the chamber. Positioned... |
| US-6,522,476 |
Three-group zoom lens A three-group zoom lens has, from an object side, a first group lens having a positive power, a second group lens having a negative power and a third group lens... |
| US-6,522,475 |
Zoom lens A zoom optical system comprises a plurality of optical elements. The plurality of optical elements include a first optical element having two refracting surfaces... |
| US-6,522,474 |
Head-mounted optical apparatus for stereoscopic display A head-mounted optical apparatus (10) providing pupil imaging with a very wide field of view. The head-mounted optical apparatus (10) employs a monocentric... |
| US-6,522,473 |
Observing optical system and imaging optical system An optical system invention is interposed between a pupil plane and an image plane, and includes a first prism, a second prism, and a holographic element which... |
| US-6,522,472 |
Apparatus for displaying a real image in space An apparatus for displaying an image in space and for providing a background image behind the projected image having an image generator and optical system for... |
| US-6,522,471 |
System of beam narrowing for resolution enhancement and method therefor A system of beam narrowing for resolution enhancement produces a narrowed beam for use in surface imaging. The system of beam narrowing for resolution... |
| US-6,522,470 |
Method for adjusting color balance of white portion of an image A projection device adjusts the color balance for a white portion of an image. A light source drives one or more electro-optical light modulation panels. A light... |
| US-6,522,469 |
Tunable solid state thin film optical filter A thin film electrical optical filter includes a thin film electrooptical dielectric having a voltage controlled electrooptical refractive index that is disposed... |
| US-6,522,468 |
Light-polarizing film A light-polarizing film is provided which possesses a light transmittance of not more than 0.3% at wavelengths of from 430 nm to 500 nm inclusive when irradiated... |
| US-6,522,467 |
Polarization insensitive liquid crystal tunable filter A method and system for filtering an optical signal is disclosed. The method and system comprise providing a polarization beam splitter, first and second... |
| US-6,522,466 |
Apparatus for observing interior from an ultramicropore space An apparatus for an object in an ultramicropore space has a lens system so that an incidence point P with the diameter in a range from 0.3 to 0.7 mm comes to a... |
| US-6,522,465 |
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 ... |
| US-6,522,464 |
Diffraction optical element, optical system and optical device A diffraction optical element comprises a substrate, a diffraction grating formed on the substrate with a material with low ultraviolet resistance and an... |
| US-6,522,463 |
Infrared absorption filter The infrared absorption filter of the present invention has a transmittance of not higher than 30% in the near-infrared region in the wavelength range of 800 to... |
| US-6,522,462 |
All optical logic using cross-phase modulation amplifiers and mach-zehnder
interferometers with phase-shift devices Optical logic gates are constructed from Mach-Zehnder Interferometer (MZI) optical circuits. A multi-mode interference (MMI) splitter divides a continuous-wave... |
| US-6,522,461 |
Optical pre-amplifier apparatus and method for receiver performing gain
control according to LOS declaration A receiver node includes an optical amplifier optically coupled to the input of a receiving device such as a PIN photodiode. A controller inputs received power... |
| US-6,522,460 |
Optical fiber amplifier control An optical fiber amplifier has a length of active optical fiber into which pump light from a pump laser is injected. The pump laser is locally controlled by a... |
| US-6,522,459 |
Temperature control and monitoring of optical detector components in an
optical communication system Optical detector components in a fiber-optic communication system are temperature stabilized. The optical detector components may be part of an optical... |
| US-6,522,457 |
Apparatus for removal of water from evacuated chambers or from gasses using
boron oxide A process for the conversion of boric acid to dry boron oxide by thermal decomposition is described. Boron oxide may be produced as a powder or in the form of... |
| US-6,522,456 |
Dynamic optical filter An apparatus and method for filtering an optical input is disclosed. In an illustrative embodiment, an optical input is split into polarization components along... |
| US-6,522,455 |
WDM optical communication system having a dispersion slope compensating
element Consistent with the present invention, in-fiber Bragg gratings are used to demultiplex optical signals in a WDM optical communication system. The in-fiber Bragg... |
| US-6,522,454 |
Hidden hinge digital micromirror device with improved manufacturing yield
and improved contrast ratio An improved DMD type spatial light modulator having an array of pixels (18). The pixels (18) are of the "hidden hinge" design, each pixel having a mirror (30)... |
| US-6,522,453 |
Projection device and a projection lens A projector device is disclosed which uses light that is spatially modulated by a DMD having mirrors which are moveable between Off and On positions in response... |
| US-6,522,452 |
Latchable microelectromechanical structures using non-newtonian fluids, and
methods of operating same Mounting systems for micro-electromechanical system (MEMS) structures are provided including a non-Newtonian fluid having a threshold viscosity that is... |
| US-6,522,451 |
Exterior mirror plano-auxiliary reflective element assembly This invention provides a plano-multiradius reflective element assembly suitable for use in an exterior sideview mirror assembly mounted to the side body of an... |
| US-6,522,450 |
Loss-less tunable per-channel dispersion compensator An apparatus and method of chromatic dispersion includes the negative compensation per channel filter (130) coupled to an optical receiving path (100) for... |
| US-6,522,449 |
Device for erasing overhead modulation of an optical signal A device for erasing overhead modulation of an optical signal, wherein said optical signal is injected into an optical device able to modulate the optical signal... |
| US-6,522,448 |
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... |
| US-6,522,447 |
Optical limiting device and method of preparation thereof Optical limiting device and method of preparation thereof. The optical limiting device includes a transparent substrate and at least one homogeneous layer of an... |
| US-6,522,446 |
Anisometrically shaped metal particles, liquid suspensions and films
thereof and light valves comprising same The invention is directed to the use of anisometrically shaped metal particles in liquid light valve suspensions, light valve films and light valves. The... |
| US-6,522,445 |
Feedback sensor for M.E.M.S. mirrors A support for a mirror which reflects a laser ray to a detector. The mirror is gimballed about two perpendicular axes. The mirror is supported solely by strain... |
| US-6,522,444 |
Integrated angled-dual-axis confocal scanning endoscopes The present invention provides a novel class of integrated angled-dual-axis confocal scanning endoscopes. An integrated angled-dual-axis confocal scanning... |
| US-6,522,443 |
High-resolution writing using beams and lenses rotating at equal or double
speed A scan systems include at least one radiation source for directing at least one beam toward a spinning scan device. The scan device reflects these beams as... |
| US-6,522,442 |
Optical path structure of optical scanner assembly An optical scanner assembly in which a pair of F.theta. lenses are arranged symmetrically across a single deflector means and a reflector for introducing a light... |
| US-6,522,441 |
Micro-optical system for an auto-focus scanner having an improved depth of
field A micro-optical system with autofocus capability utilizing micro electro-mechanical systems (MEMS) to vary the focus of the beam achieving increased depth of... |
| US-6,522,440 |
Inter-satellite optical link track sensor The present invention provides a tracking sensor and system to maintain the alignment of an optical communication beam between two terminals. A four-quadrant... |
| US-6,522,439 |
Optical distortion compensation apparatuses, methods, and systems Apparatuses, methods, and systems are disclosed that provide for simultaneously upconverting electrical signals carrying information at electric frequencies onto... |
| US-6,522,438 |
High-speed optical duobinary modulation scheme A duobinary modulator and a method of modulating an optical signal so as to be coded in a duobinary manner, using optical modulating specifically adapted for... |
| US-6,522,437 |
Agile multi-beam free-space optical communication apparatus An electronically agile multi-beam optical transceiver has a first crossbar switch, that switches input signals to selected ones of a spatial array of light... |
| US-6,522,436 |
Multiplexed transmission of optical signals In an optical communication system, a train of optical pulses is transmitted such that each pulse carries a set of multiplexed channels. In a receiver, the error... |
| US-6,522,435 |
High-throughput, low-latency next generation internet networks using
optical label switching and high-speed... An optical signaling header technique applicable to optical networks wherein packet routing information is embedded in the same channel or wavelength as the data... |
| US-6,522,434 |
System and method for determining optical loss characteristics of optical
fibers in an optical fiber network A system and method for determining the optical loss characteristics of optical fibers in an optical fiber network. An optical transmission module is provided.... |
| US-6,522,433 |
Interference lithography using holey fibers A method and apparatus for interference lithography utilize a fiber having a cladding region with axially formed holes surrounding a core region. The fiber emits... |
| US-6,522,432 |
Image scanner with automatic signal compensation The present invention relates to an image scanner with automatic signal compensation function for compensating the instability of a light source of the image... |
| US-6,522,431 |
System for minimizing image defects in a hard-copy input scanner In a document handler associated with a scanner, such as for a digital copier or facsimile machine, an image-bearing sheet is moved over a window, through which... |
| US-6,522,430 |
Quantification of motion quality effect on image quality An image quality analysis system is provided that allows highly accurate measurements of motion quality defects. The motion quality analysis process relies only... |
| US-6,522,429 |
Facsimile machine and facsimile communication system A facsimile communication system includes a calling and a called facsimile machine connected via a communication network. Each of the facsimile machines has a... |
| US-6,522,428 |
Structure of foldable optical path A structure of foldable optical path is suitable for use in an optical scanner with a CCD type or a type of non-contact imaging sensor. The structure of foldable... |
| US-6,522,427 |
Color table manipulations for contour reduction An apparatus and method for improving a color space transformation between an input device such as a scanner and an output device such as a printer. The color... |
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