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7637621 |
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
A projection optical system for use in an image projection apparatus illuminating an image display panel forming an image in accordance with a modulating signal with illumination light from a light...
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7637618 |
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
A projection optical system for use in an image projection apparatus illuminating an image display panel forming an image in accordance with a modulating signal with illumination light from a light...
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7631975 |
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
A projection optical system for use in an image projection apparatus illuminating an image display panel forming an image in accordance with a modulating signal with illumination light from a light...
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7616368 |
Light concentrating reflective display methods and apparatus
Improved apparatus and methods for displays are disclosed that utilize light concentration array between mechanical light modulators and the viewing surface of the display. The light concentration...
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7607785 |
Projection lens and projector
There is provided a projection lens for a projector which utilizes a reflection type display device, comprising a movable aperture 70 which is movable as a movable lens components moves, wherein...
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7607787 |
Light source unit and projector system
A light source unit which is reduced in size while securing a certain quantity of light by increasing the utilization efficiency of light and a projector system utilizing the light source unit. The...
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7607786 |
Light deflector, light deflection array, optical system, image forming device, and projection type image display apparatus
A light deflector includes a substrate; a plurality of control members provided at edge parts of the substrate, the control members having upper parts where stoppers are situated; a fulcrum member...
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7591560 |
Reflection optical system and projection display apparatus using the same
A reflection optical system placed between a light valve 5 and a screen 4 , wherein curved surfaces are only three reflection surfaces of first to third mirrors 1 to 3 , and satisfies the...
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7575325 |
Image displaying apparatus and color separating-combining optical system
An image displaying apparatus is capable of maintaining the contrast ratios of displayed images even if the f-value of an optical system of the apparatus is lowered to provide bright images,...
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7568806 |
Light source unit having a light source in a mirror tunnel
A light source unit includes a mirror tunnel which has a prism-like shape and whose external sides are formed to taper, and a light source which includes a light emitting device and which is...
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7568805 |
Illumination unit and image projecting apparatus employing the same
An illumination unit includes multiple light source units to emit light having different wavelengths, and a synthesizing prism to synthesize the emitted light. The synthesizing prism includes a...
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7566135 |
Light tunnel of DLP projection system
In order to provide a light transmitting space to reinforce an intensity of a light tunnel in a DLP projection system, and increase an heat-resistance, provided is a light tunnel of a DLP...
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7562987 |
Complex mirror projection display
A rear projection display according to the present disclosure includes a complex mirror as an optical element to simplify the optical design. The mirror may be symmetrical about at least one axis...
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7559671 |
Illumination system
An illumination system including a beam splitter, a first lamp, a second lamp, a first reflector, a second reflector, and a light uniforming element is provided. The first and the second lamp emit...
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7556384 |
Press-up tri-fold display device
A trifold display device comprising panel opening mechanism(s) which open the device, in a damped motion, from a closed position wherein display surfaces are concealed from view to an open...
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7553033 |
Projector and optical device
To provide a projector or the like, which use a solid-state light-emitting element as light source and which provides a bright, stable, and uniform projection image, the present invention includes:...
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7547103 |
LCoS display system with software/firmware correction enabling use of imperfect LCoS chips
A LCoS projection display system using two LCoS chips and a variable color filter.
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7543945 |
Integrator module with a collimator and a compact light source and projection display having the same
A projection display includes three illumination units to emit red, green, and blue beams, at least one optical modulator to modulate the red, green, and blue beams to be suitable for image data,...
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7542211 |
Image-forming optical system
A high-performance image-forming optical system made compact and thin by folding an optical path using reflecting surfaces arranged to minimize the number of reflections. The image-forming optical...
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7533996 |
Contrast adjustable projector apparatus
A contrast adjustable projector apparatus including a body, a light source, an illumination unit, a lens assembly and a regulation device is disclosed. The light source is disposed in the body for...
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7535648 |
Projection type image display
An image that has been displayed on the display screen of an image generator is first passed through a projection lens section consisting of a front group and a rear group. Next after being...
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7530698 |
Positioning device for a projection apparatus
A positioning device for positioning an integration rod module disposed in an optical path between a light source device and a projection lens within a projection apparatus includes a flexible...
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7530694 |
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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7529024 |
Polarization conversion system and illumination module
A polarization conversion system includes at least one beam splitting and combining unit having a polarization beam splitting element and a dichroic element, a dichroic unit, a polarization beam...
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7527998 |
Method of manufacturing MEMS devices providing air gap control
Methods and apparatus are provided for controlling a depth of a cavity between two layers of a light modulating device. A method of making a light modulating device includes providing a substrate,...
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7524068 |
Projection optical system
A projection optical system that performs enlargement projection of an image on a display device surface formed of a plurality of pixels onto a screen surface, in which pixel shift by less than a...
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7520615 |
Display apparatus and image pickup apparatus
A display apparatus is provided which can display different text/image information depending on the viewing angle and the viewer, display a high reality three-dimensional image viewable from any...
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7517094 |
Projection device
In a projection device including a reflective light modulator for generating an image, a light source unit for illuminating the light modulator, and projection optics which include first and second...
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7517096 |
Projection display system with micro-mirror light modulator
A micro-mirror light modulator and associated projection display system. The projection display system includes a light source, a linear light source illumination system that transforms a light...
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7517090 |
Real image projection device having plastic curved mirror for improving image and correcting aberrations
A device using a low-cost plastic curved mirror and several combinations of methods for reducing aberrations to improve a real image projection system is provided, so as to reduce ghost and...
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7513624 |
Method and apparatus for controllably modulating a laser in a laser projection display
A laser projection device suitable for displaying full color images is disclosed. The LPD includes a variety of techniques for modulating laser beams produced by one or more lasers with image data...
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7506986 |
Projection type video display
A light source comprises a lamp such as an ultra-high pressure mercury lamp or a metal halide lamp and its irradiated light is emitted after being parallelized by a parabolic reflector. The...
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7506985 |
Projection light source having multiple light emitting diodes
A light source comprises a plurality of light emitting diodes arranged around the perimeter of a reflective optical element, wherein each of the light emitting diodes selectively generates a light...
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7503661 |
Projection optical system
In a projection optical system for obliquely performing enlargement projection of an image formed on a display device surface onto a screen surface, a plurality of reflective surfaces are provided,...
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7503660 |
Light mixing member, multiple-lamp lighting equipment and projection video display
A reflection mixing member ( 13 ) has an alignment in which light from a first light source is incident on a reflecting surface ( 13 a ) and light from a second light source is incident on a...
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7494228 |
Compact mixing cavity for multiple colors of LEDs
For mixing different light colors from different LEDs or energized phosphors, an elongated mixing tunnel is used having a reflective inner surface. LEDs of different colors are optically coupled...
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7484853 |
Light source device and projector
A light source device includes: a light emitting tube having a light emitting portion that generates light by an electric discharge between a pair of electrodes and first and second sealed portions...
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7463415 |
System for collecting and displaying images to create a visual effect and methods of use
A system (and its methods of use) for collecting and displaying images so as to create a visual effect and, more particularly but not by way of limitation, a three-dimensional visual effect.
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7458687 |
High efficiency digital cinema projection system with increased etendue
A digital cinema projection apparatus having an illumination source with a first etendue value for providing polarized polychromatic light. A first lens element lies in the path of the polarized...
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7455409 |
Projection-type image display apparatus
A projection-type image display apparatus using a light emitting diode light source including a compact optical arrangement. The projection-type image display apparatus includes an illumination...
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7455410 |
Illuminating apparatus and projector
An illuminating apparatus includes: a light source that emits a source light; and a light guiding module that has an overlap rod portion which can pass luminous fluxes traveling in different...
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7452085 |
Dynamically adjustable fold-mirror assembly for projection device
An apparatus, system, and method for a fold-mirror assembly with a dynamically adjustable mirror element for use in a projection device are disclosed herein.
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7452087 |
Illumination apparatus and image projection apparatus
An illumination apparatus illuminating an objective illumination region comprises a plurality of illuminants having light-emitting surfaces radiating diffused light, an illuminant substrate in...
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7450286 |
Laser projection apparatus
A laser projection apparatus includes: laser devices; incident optical systems, each of which is supplied with light beam from the laser device; a scanning device for two-dimensionally scanning the...
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7450285 |
Laser projection apparatus
A laser projection apparatus PJ includes: laser devices; incident optical systems, each of which is supplied with light beam from the laser device; a scanning device for two-dimensionally scanning...
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7448755 |
Three-panel projection display apparatus for displaying color images
A three-panel projection display apparatus displays a color image by separating light emitted from a light source into lights of three primaries, i.e., red, green, and blue, with dichroic mirrors,...
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7445345 |
Optical display device and projection-type display device
A projection-type display device 1 including a light source 10 , an optical integrator 20 , dichroic mirrors 30 and 35 , a reflecting mirror 36 , a relay optical system 40 , parallelizing...
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7441908 |
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
A projection optical system for use in an image projection apparatus illuminating a light valve forming an image in accordance with a modulating signal with illumination light from a light source....
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7434946 |
Illumination system with integrated heat dissipation device for use in display systems employing spatial light modulators
Disclosed herein is an illumination system for use in display systems employing spatial light modulators. The illumination system comprises a fastening mechanism for securing the bonding of the...
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7434944 |
Image projection apparatus
In an image projection apparatus, the deflection axis of the pixels of a display device is parallel to the longer sides of the display area of the display device, and the entrance pupil of a...
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