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8182100 |
Free-form condenser optic
A condenser for directing light from a UHP arc lamp or other generally cylindrical source onto a target such as a microdisplay in line with a front end of the lamp comprises a primary mirror to...
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8177370 |
Method to display images with metameric jamming to prevent illegal copy
Method to display an image using four or more primaries having different spectral distributions that are distributed into three groups of primaries, wherein, in a visual color space, all primaries...
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8167440 |
Light source unit, light source apparatus and projector
A light source unit includes a light source group wherein light sources are arranged into rows and columns so as to form a planar configuration and a primary reflecting mirror group disposed on an...
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8164838 |
Projection optical system and projection type image display device
A projection optical system includes: a refracting optical section composed mainly of a plurality of lenses disposed in order from a reducing side, and having positive power; a first reflecting...
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8157386 |
Projector
In a projection optical system comprising: two lens groups, and a curved plane mirror, wherein the projection optical system including two story structure, and having bend means for bending at...
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8152311 |
Display apparatus and light control method of the same
Disclosed are a display apparatus and a light control method thereof, in which the display apparatus including a display panel, a light source unit, an illumination unit to illuminate the display...
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8142032 |
Optical system unit for projecting images and including light smoothing unit formed into substantially truncated quadrangular pyramid, and projector including the same optical system
An optical system unit having a light smoothing unit for emitting a light beam which is substantially parallel to an optical axis and a projector including the optical system unit are provided. The...
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8136947 |
Optical element having a toric surface and method of making
An image forming system is described that includes a light source that provides a light beam and an anamorphic refractive optical element. A first outer surface of the anamorphic element faces the...
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8132919 |
Digital projector using arrayed light sources
A beam alignment chamber extending in a length direction comprising a base having a front edge, and two side edges, first and second opposed side walls connected to the base, and extending along...
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8128239 |
Light source device and projector
A light source device includes a light emitting tube having a light emitting section that emits light, a first sealing section on one side of the light emitting section formed integrally with the...
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8128238 |
Projection optical system and image displaying apparatus
Disclosed is a projection optical system including a projection surface configured such that an image conjugate to an object is projected, plural optical elements having a refractive power, and a...
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8128234 |
Position adjustment device for integration rod
A position adjustment device for an integration rod includes a fixed plate, two resilient members, and two adjusting screws. The first resilient member is positioned between the fixed plate and the...
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8123368 |
Optical beam scanning device, image forming apparatus
An optical beam scanning device includes a polygon mirror 80 in which tilt angles with respect to a rotation axis of the polygon mirror 80 of respective plural reflecting surfaces are set to angles...
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8123370 |
Multiple-viewing-point floating image display device
A multiple viewing-point floating imaging device is comprised of a plurality of dihedral corner reflectors 1 arranged along an optical device plane S and rotated around an axis of rotation...
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8113667 |
Projection optical system
A projection optical system satisfies a conditional formula: 0.01<{(tan θf1−tan θf2)−(tan θn1−tan θn2)}·(β2/β1)<0.20 where the direction of a normal to and the direction of a long side of the scree...
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8113664 |
Projector
In a projection optical system comprising: two lens groups, and a curved plane mirror, wherein the projection optical system including two story structure, and having bend means for bending at...
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8096665 |
Spatially offset multi-imager-panel architecture for projecting an image
A high-resolution image is generated using multiple spatially offset lower-resolution digital micro-mirror device (DMD) panels. Multiple lower-resolution subframe signals for controlling the...
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8087789 |
Projection optical system and projection display device
A projection optical system includes a first refracting optical system having a plurality of lenses, a first reflecting optical system, and a second reflecting optical system. The first reflecting...
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8070298 |
Laser display system with optical feedback configured to reduce speckle artifacts
An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204)...
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8066388 |
Light source device and projector having same
A light source device includes a first light source, a second light source, a reflective assembly, and a condensing lens defining an optical axis. The first light source includes a first lamp and a...
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8061854 |
Projection display system with varying light source
The present invention provides a projection apparatus, comprising: a light source; at least one spatial light modulator for modulating illumination light from the light source by a plurality of...
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8061856 |
Projection apparatus and image projection changeover method
The present invention provides a projection apparatus, comprising: a light source; a spatial light modulator for modulating the incident light emitted from the light source; a spatial light...
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8061857 |
LED light shaping device and illumination system
An LED light shaping device and illumination system are provided. According to one embodiment, a light shaping lens is configured to shape light emitted from a light source and direct the light on...
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8057043 |
Imaging element and display with micro mirror array
As optical elements for bending a light beam when it passes through an element face constituting one plane, a plurality of unit optical elements for reflecting light on one or more mirror surfaces...
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8052284 |
Projector with reduced size and higher contrast
A projector with reduced size and higher contrast includes a prism assembly, a light system, and a Digital Micro-mirror Device (DMD). Only In the “ON” state of DMD, the light from the light sys...
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8052286 |
System and method for utilizing a scanning beam to display an image
A method includes generating a plurality of beams that each illuminate a separate portion of a spatial light modulator. The spatial light modulator has a first dimension of a first length and a...
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8045247 |
Post-objective scanning beam systems
Scanning beam systems, apparatus and techniques in optical post-objective designs with two beam scanners for display and other applications.
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8038299 |
Light source apparatus, light source control method, and projector apparatus
A light source apparatus includes a light source emitting light, an optical deflection element deflecting and exciting the emitted light, and a light conversion member cyclically outputting source...
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8032245 |
Methods for configuring optical projection system
An optical projection system for use with a display surface includes at least one image source comprising an array of source image pixels, a projector to project a first projection of the array of...
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8029147 |
Projection optical system and projection display device using the same
A projection optical system having a magnification side and a reduction side for forming a magnified image on a magnification side image surface conjugate with a reduction side conjugate image...
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8029145 |
Peripheral projection display system
A peripheral projection, display screen system including (a) a display screen having a rear side and a diagonal dimension, (b) an image-projection source coupled to a peripheral of the system and...
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8029146 |
Light source device and projector
A light source device which produces illumination light for illuminating a target illumination area on a predetermined light receiving surface includes: a light source which emits light; a...
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8021000 |
Flat projection television
A flat projection television comprising an imagine engine mounted adjacent a top of an enclosure and optically coupled to a collimator mirror, a flat mirror, a mirror assembly comprising a...
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8016434 |
Method and system for projecting an animated object and concurrently moving the object's projection area through an animation pattern
A projection assembly and projection method for accurately reproducing animated and live characters, objects, and effects. The projection assembly uses a high precision robotic mirror system to...
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8002413 |
Light source unit and projector
There is provided a light source unit which includes a luminescent light source which receives excitation light so as to emit light of a predetermined wavelength band, excitation light sources...
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RE42617 |
Image projection system with an invisible-light reflector for heat dissipation
An image projection system includes a light source for generating a light beam, a reflective housing, and an invisible-light reflector. The reflective housing includes an opening and forms an...
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7997739 |
Optical beam scanning device, image forming apparatus
An optical beam scanning device includes a polygon mirror 80 in which tilt angles with respect to a rotation axis of the polygon mirror 80 of respective plural reflecting surfaces are set to angles...
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7997742 |
Capacitive comb feedback for high speed scan mirror
An image projection system (100) has a laser (102, 104, 106) providing at least one beam (103, 105, 107) to a scan mirror apparatus (130) for scanning the at least one beam (103, 105, 107) in two...
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7993012 |
Laser display system with optical feedback configured to reduce speckle artifacts
An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204)...
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7993014 |
Prism for high contrast projection
Prism elements having TIR surfaces placed in close proximity to the active area of a SLM device to separate unwanted off-state and/or flat-state light from the projection ON-light bundle. The TIR...
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7984994 |
Image display apparatus
A projection optical system including a projection lens, a first mirror that reflects a light from the projection lens, and a second mirror that widens an angle of a light from the first mirror by...
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7976172 |
Projection apparatus, projection method, and computer program
Light emitted from a lamp enters a color wheel having a region for allowing a predetermined color to pass therethrough, is reflected on a mirror, and enters a DMD. After this, the light is...
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7972004 |
System and method for uniform light generation
A system and method for uniform light generation in projection display systems. An illumination source comprises a light source to produce colored light, and a scrolling optics unit optically...
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RE42515 |
Method of manufacturing reflective mirror, illumination device, and projector
A reflective mirror manufacturing method for manufacturing a reflective mirror used in an illumination device including an arc tube including a light-emitting portion and a reflective mirror...
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7967448 |
Optical system for a thin, low-chin, projection television
A micro-mirror based projection display system in an enclosure with minimum chin and depth measurements is disclosed. A light source, such as a solid state laser light source, generates light of...
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7967452 |
Projection type display apparatus
A projection type display apparatus is provided that is safe even when a person looks directly into a laser beam. A laser operation control unit sets the output power of at least one laser source...
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7967449 |
Arc tube having electrodes including coil winding portions and projector including arc tube light source
An arc tube includes: a tube spherical portion containing a pair of electrodes each of which has a shaft portion and a coil winding portion formed by winding coil around the shaft portion; and a...
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7959306 |
Displaying method of digital light processing (DLP) projector and DLP projector using the same
A displaying method of a digital light processing (DLP) projector includes the steps of: providing a light modulation device including a driver printed circuit board and a digital micromirror...
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7959297 |
Uniform speckle reduced laser projection using spatial and temporal mixing
A digital image projector includes a light assembly configured to project light along a light path from at least one laser array light source, the projected light having an overlapping far field...
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7959305 |
Light recycling in a micromirror-based projection display system
A digital micromirror projection display system is disclosed in which “off” pixel light is recaptured and recycled. In the disclosed system, a digital micromirror device directs incident light for...
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