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7158268 |
Digital image scanner with a variable aperture lens and multiple scanning speeds
A scanner is provided with a variable aperture lens system. High resolution scans use a relatively small aperture size, and scanning speed is relatively slow. Low resolution scans use a relatively...
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7142257 |
Laser projection system
Laser projection system suitable for commercial motion picture theaters and other large screen venues, including home theater, uses optical fibers to project modulated laser beams for...
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7053930 |
Triangular bidirectional scan method for projection display
One embodiment disclosed relates to a method for bi-directional progressive scanning in a display system. The method includes receiving image data for an image to be displayed, forward scanning the...
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6987616 |
Light reflection/diffraction device, light reflection/diffraction device array, and image display
A light reflection and diffraction element for enhancing the contrast of an image display device. In an off state of the element, a portion exhibiting a cyclic structure for diffracting incident...
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6945652 |
Projection display device
Light beams having different wavelengths emitted from red and blue semiconductor lasers and a laser diode pumped green solid-state laser are incident on respectively different surfaces of a color...
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6924936 |
Light scanning apparatus and two-dimensional image forming apparatus
A one-dimensional image is formed by reflecting the light from a one-dimensional display device having a plurality of light emitting sections or light emitting sections disposed in one direction by...
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6917385 |
Image input device for obtaining 2-D and 3-D images with a linear sensor
An image input device comprises a mirror body which is designed in a polygonal prism form and has side peripheral surfaces each formed of a mirror face, image pickup light from a subject being...
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6590606 |
Method for the compensating of geometric images and an arrangement for carrying out the method
An arrangement for displaying video images on a projection surface, in which the display is carried out on the projection surface at an inclination, comprises a source for the emission of a...
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6535250 |
Image pickup apparatus
An electronic camera adopts an image pickup and optical system of a mirror scan type in which a mirror for scanning is disposed at a forward side of a taking lens. A line image sensor relatively...
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6512539 |
Document periscope
A composite higher resolution image of an object can be obtained by combining or patching together multiple low-resolution camera images to form a composite image having a higher resolution. Each...
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6480324 |
Methods involving direct write optical lithography
An improved optical photolithography system and method provides predetermined light patterns generated by a direct write system without the use of photomasks. The Direct Write System provides...
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6426776 |
Apparatus for and method of photographing using scanning techniques
An apparatus for obtaining a two-dimensional image of an object by means of an image sensor and a scanning mechanism is provided with a light source for emitting light for irradiating the object....
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6366387 |
Depixelizer
A depixelizer for enhancing an image generated by a spatial light modulator having an array of pixels. The depixelizer comprising a translatable stage having the spatial light modulator attached...
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6091461 |
Electronically self-aligning high resolution projection display with rotating mirrors and piezoelectric transducers
A projection display device wherein a modulated laser beam is scanned across a viewing surface by a system of rotating mirrors. A correcting mirror is provided for introducing small variations in...
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6067183 |
Light modulator with specific electrode configurations
A light modulator for modulating a beam of light of wavelength λ including a substrate, a fixed electrode formed over the substrate and arranged to reflect light; an insulative transparent layer...
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5956529 |
Hand tremor compensating apparatus using magnets
A hand tremor compensating apparatus for a video camera has a bobbin for supporting and protecting a mirror section. The bobbin has a contact portion with a groove provided therein. A barrel is...
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5920417 |
Microelectromechanical television scanning device and method for making the same
A single reflector, two-axis MEMS scanner made of a substrate. The substrate has nested, cut-out regions. Each region is independently rotatable about one of the axes. The axes of the regions are...
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5844598 |
CCD based optical detector for a confocal microscope
An optical detector includes a charge-coupled device (CCD). The CCD comprises an active cell for receiving a narrow beam of incident illumination and generating photoelectrons in response thereto,...
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5822022 |
Video system
In a video system for displaying a video picture composed of image points, whose color values and/or brightness values can be stored sequentially, according to a first set of parameters with...
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5818546 |
Apparatus for imaging exit spots of a laser array
In order to improve an apparatus for generating an image in an image plane that is visible, in particular, for a human eye, comprising a radiation source which generates an image via an optical...
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5677729 |
Panoramic vision apparatus
A panoramic vision apparatus having a simple structure is provided which produces an image from which the viewer feels a natural stretch. A shooter and a display are each provided with a prism. The...
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5648868 |
Second generation FLIR NV-81
An optical system is provided for a FLIR mounted in a cylindrical turret ch has five folding mirrors, two doubling as scanning mirrors, numerous lenses with aspherical surfaces and different...
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5646683 |
Imaging systems
Currently, electronic imaging cameras use expensive array photodetectors instead of inexpensive linear photodetectors because they cannot scan linear detectors across the entire image within their...
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5610730 |
Low-cost high-resolution digital scanning camera
A low-cost, high-resolution digital scanning camera for obtaining a digital image of objects within a field of view. Light from the objects in the field of view is reflected off a pivoting mirror...
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5517330 |
Minimization of differential bow in multiple beam scanning optical systems
A raster scanning system is disclosed which utilizes a post polygon optics which generates a field curvature to substantially reduce a differential bow. The post polygon optics of this invention...
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5481300 |
Image capture system
Currently, electronic imaging cameras use expensive array photodetectors instead of inexpensive linear photodetectors because they cannot scan linear detectors across the entire image within their...
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5459610 |
Deformable grating apparatus for modulating a light beam and including means for obviating stiction between grating elements and underlying substrate
A modulator for modulating incident rays of light, the modulator comprising a plurality of equally spaced apart beam elements, each of which includes a light reflective planar surface. The elements...
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5424771 |
A video display device using laser generated radiation
A display device using laser comprises an input path for a composite video signal, a memory for storing the video signal by picture regions divided according to the size of picture, a controller...
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5387926 |
High speed digital framing camera
The present invention provides a system for recording images occurring both before and after a triggering event. Temporarily stored images are continually refreshed, the most recent images...
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5381258 |
Laser projector for projecting an image onto a curvilinear surface
A laser projection system for projecting an image onto a surface comprises a laser projector operably connectable to a computer. The computer controls the operation of the system. The laser...
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5365288 |
Image mover
An image mover having a reduced sizing for the steering mirror and rotator assembly and associated components and motors is disclosed. The image mover comprises a relay lens to collimate and relay...
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5363232 |
Device for controlling luminous energy
A spherical integrator has beam input and output apertures. The output aperture is opened at a position to which incident beam does not directly strike. The integrator has a curved inner surface...
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5333067 |
Apparatus and method for velocity compensation of the scanning spot in non-linear scanning systems
Apparatus for generating a pixel clock to control the timing of data pulses in an optical scanning device. A VCO is utilized to generate the pixel clock. The control voltage for the VCO is provided...
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5249157 |
Collision avoidance system
A collision avoidance system particularly suited for automotive applications includes an electro-optical rangefinder scanner, retroreflectors on target vehicles, and a processing unit. The...
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5212555 |
Image capture with spatial light modulator and single-cell photosensor
An apparatus and method for capturing an image, using a spatial light modulator (SLM) 11 and a single-element sensor 15. The SLM 11 is an array of individually switchable pixel elements, which...
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5170283 |
Silicon spatial light modulator
A spatial light modulator including a silicon backplate having an insulating layer and a standoff grid of insulating material deposited on the backplate to define an array of cells. An electrode is...
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5140427 |
Apparatus for displaying an image on a screen
A display apparatus having a screen, a light beam source for generating light beams, an optical modulator for modulating the light beams in accordance with image signals to be displayed, a scanning...
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5075776 |
Method of electronically stabilizing a video image having vibration-induced jitter
A method of electronically stabilizing an image in the presence of jitter. The jitter induced error is measured prior to the beginning of each active sampling window signal and the error is...
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5051834 |
Projection-type display apparatus utilizing both zero-order and first-order diffracted beams
An apparatus has a light modulator for emitting a first-order diffracted beam to scan a screen two-dimensionally and a zero-order diffracted beam which is two-dimensionally deflected and projected...
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5013108 |
Optical scanning device and mirror correction system for use in such a device
An optical scanning device comprises a rotatable polygon mirror (40), or another deflection system, which is arranged between an objective system (30) and the surface (61) to be scanned. In order...
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4978185 |
Raster scanning system utilizing overfilled polygon facet design with non-reflective facet edges
An overfilled polygon scanning system is implemented by first determining which portions of the polygon facet can be formed with a degree of flatness within specification. Typically, the flatness...
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4972258 |
Scanning laser microscope system and methods of use
A scanning laser microscope system for assisting in the detection and characterization of fine details and structures of materials or other samples. The system can have means for enhancing light...
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4971413 |
Laser beam depicting apparatus
A laser beam depicting apparatus adapted to depict a raster image by modulating a laser beam by image data and raster-scanning the laser beam by the reflecting surfaces of a rotational polygonal...
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4966427 |
Flexible scanwheel
A multifaceted aluminum scanwheel 11 mounted for rotation on a steel bearing assembly 19 is made less susceptible to thermally-induced stresses by the provision of a specially-configured web...
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4960313 |
Apparatus for rotating a light image and an optical system for focusing light beams on a recording medium
An apparatus for rotating a light image comprises an optical medium such as a Dove prism, an assembly of three mirrors, a triangle prism etc., and a unit for rotating the optical medium. The...
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4946233 |
Light scanning apparatus
In a light scanning apparatus, such as in a laser printer, an optical switch is provided between a light source and an acousto-optic light-modulating element for modulating the light according to...
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4943145 |
Display method and apparatus
A display system includes a display medium which comprises a display layer providing a display area capable of converting coherent light into light of a shorter wavelength through a nonlinear...
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4888647 |
Image recording apparatus with improved SOS detection
An image recording apparatus comprises a laser light source for generating a primary beam for scanning and a secondary beam for monitoring the light amount thereof which has a photodiode for...
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4868663 |
Optical device for scanning still images in television
The invention relates to a device for scanning still images as applicable in particular to high-definition television (HDTV) systems. In accordance with customary practice, the entire still image...
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4851913 |
Picture recording apparatus
A picture recording apparatus comprises a light source (16) which illuminates the object to be recorded, a light sensitive semiconductor row (12), and an objective (16) which images a strip-like...
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