Matches 1 - 50 out of 439 1 2 3 4 5 6 7 8 9 >


Match Document Document Title
9039185 LCOS projection system having beam recycling module with total internal reflecting prism  
A LCOS projection system includes an illumination device, a LCOS microdisplay element, a polarization beam splitter, an optical projection lens, and a beam recycling module. A first portion of the...
9033513 Projection device and light source device thereof  
A light source device includes at least one light emitting diode, at least one dichroic mirror, a condenser, and a fly's eye device. The light emitting diode is operable to generate at least one...
9022580 Illumination optical system and projector using the same  
This invention realizes an illumination optical system with a small etendue that has a longer lifetime and a high degree of brightness. The invention includes: a laser light source that generates...
8979272 Multi-primary color display  
Embodiments of the present invention provide a method, apparatus and system of producing a color image using four or more primary colors. The apparatus, according to some demonstrative embodiments...
8955985 Lighting device and projection-type display device using same  
A lighting device includes excitation light sources, phosphor wheel that emits green fluorescent light, a collimator lens that converts the emitted fluorescent light into parallel luminous flux, a...
8919967 Micro projection system  
A micro projection system includes a primary prism as a light guide device. The primary prism has a bottom face and two slope faces. A light source module and a collimation lens are arranged at...
8905555 Image projection apparatus provided with no relay lens  
An image projection apparatus is provided, which includes an illumination unit which generates illumination light, a first prism which receives the illumination light from the illumination unit...
8870384 Projection display device having light source device with color synthesis unit  
A light source device includes: a first light source (3a) that emits first polarized light of a plurality of colors including different wavelengths; a second light source (3b) that emits second...
8864319 Imaging optical system, lens unit, and image projection apparatus  
An imaging optical system includes a lens unit that includes a plurality of optical elements, and an optical path combining portion that includes a flat plate disposed so as to be inclined with...
RE45148 Image display apparatus with relaying optical system, reflective optical component and phase difference optical component  
An image display apparatus for a viewer to view a two-dimensional image demonstrated on an image display device as an enlarged virtual image by a virtual-image optical system. The image display...
8840251 Light collecting optical system and projection-type image display apparatus  
A light collecting optical system includes surface-emitting light sources, collimate lenses, and a condenser lens. Light emitting surfaces of the surface-emitting light sources have a rectangular...
8827464 Projection display device, portable electronic apparatus and digital camera  
A projection display device includes: a light source unit including light sources emitting light in a plurality of colors, condenser lenses and a color combining optical element; a total...
8794770 Projection display and method of displaying an overall picture  
A projection display includes at least one light source, at least one reflective image generator configured to represent frames in a two-dimensional distribution of subareas of same, a projection...
8777416 Polarization beam splitting element and image projection apparatus  
The polarization beam splitting element splits an entering beam according to polarization directions. The element includes, in order from a beam entrance side, an entrance side multi-layered film...
8757810 Light source device and projector  
A projector includes a projection lens set, a DMD, a prism unit, a light guide unit, and a light source device. The light source device includes a first and a second LEDs, a laser light source,...
8727537 Image projection apparatus and color separation/combination optical system  
An image projection apparatus guides light from a light source to a first and a second image modulation elements and projects light modulated by the first and second image modulation elements...
8721089 Image projection apparatus having plural interchangeable projection optical systems  
The image projection apparatus is disclosed to which plural interchangeable optical units are selectively attachable. The apparatus includes a shift mechanism moving an attached optical unit,...
8696137 Pico projector apparatus of retro total reflecting type telecentric optical configuration  
A high efficiency projector apparatus comprising an illumination lens set including a first illumination lens and a second illumination lens, and the image is imaged conjugatedly on the image...
8696133 Projection optical system and image projecting device  
A projection optical system (6) comprises a relay optical system (61), a PBS prism (71), and two projection lenses (81). The image light beam from a DMD (5) enters the PBS prism (71) via the relay...
8696143 Projection system  
A projection system having a first tilting mirror matrix, a second tilting mirror matrix, and an imaging lens, which projects the first tilting mirror matrix onto the second tilting mirror matrix,...
8690338 Reflective liquid crystal projector  
A reflective liquid crystal projector according to the aspect of the invention includes a light source, a reflective liquid crystal panel, and a wire grid polarization beam splitter element. The...
8690356 Video display device and light guide module with a light shielding plate having a plurality of openings  
A video display device includes a light guide unit for guiding outgoing light from a light source unit to a pixel area of a display device. The light guide unit includes a rod integrator having an...
8668339 Light source device  
In a light source device, that obtains high light usage efficiency by projecting simultaneously two or more of three primary color lights X, Y and Z. Moreover, each color light X, Y and Z is...
8657448 Polarization converting element, polarization converting unit, and projection-type imaging device  
A polarization separating element is configured to include a translucent substrate formed of a crystal material having birefringent properties and optically rotatory power and a polarization...
8636366 Lighting apparatus including a light source, a first mirror, and a second mirror disposed between the light source and the first mirror  
A lighting apparatus of the present invention includes light source (101), rod integrator (105), reflecting mirror (103), diffusion plate (104) disposed adjacently to reflection mirror (103),...
8591036 Projector apparatus utilizing wedge-type lens  
A projector apparatus utilizing wedge-type lens for projecting an image onto a surface, comprising a light source module for generating a single first light path; an illumination lens set for...
8591040 Projection device for architectural and entertainment lighting  
A projection device embodiment comprises a light source system, a gate with a cross sectional gate area, and projection optics. The light source system includes a solid-state light source...
8573779 Lighting device with plural light sources illuminating distinct regions of integrator  
A lighting device is provided which efficiently achieves a high brightness and a high image quality by using a solid light source which has long service life and does not need mercury. The...
8529072 Image projecting device and a prism with a curved reflection surface  
An image projecting device, including an image forming element for forming an image, a light source for generating light, and an imaging optical system for imaging an image formed by the image...
8529067 Projector apparatus and image synthesizing device for the same  
An image synthesizing device for a projector apparatus includes first, second, third polarizing beam splitters respectively provided for red light, green light, and blue light; and a light...
8523361 Projection device with brightness adjustment function and method thereof  
A projection device with an illumination adjustment function includes a polarization beam splitter (PBS), a display, a light source, a lens module, a power supply unit, a light detection unit and...
8500286 Projection system  
A projection system is disclosed, the projection system including: an illumination unit; a PBS (Polarizing Beam Splitter) reflecting the light from the illumination unit, transmitting an image...
8491125 Lighting device and projection type display apparatus including the same  
A lighting device configured to efficiently combine light beams emitted from a plurality of light sources, and to emit high output light while minimizing light loss, and a projection type display...
8485667 Optical element and colored light combiner using same  
Optical elements, color combiners using the optical elements, and image projectors using the color combiners are described. The optical element includes light recycling stacks, a polarizing beam...
8469516 Illumination apparatus and projection display apparatus  
An illumination apparatus includes: a polarization conversion element configured to align polarization directions of light emitted from a light source in one polarization direction; a color...
8465155 Line illumination apparatus using laser arrays  
A method for forming, onto a linear array light modulator, a line of illumination that extends in a linear direction, the method includes forming a first linear beam array and a second linear beam...
8459798 Illumination apparatus and projector  
An illumination apparatus includes a light source, a polarization splitter disposed facing the light source at about 45 degrees with respect to its light emission direction, a first reflector...
8414128 Optical projection device and projecting method thereof with movable wave plate  
An optical projection device includes a laser engine, a first wave plate and a lens. The laser engine provides light. The first wave plate changes a light phase. The lens focuses light. A...
8414129 Optical system  
An optical system is provided. The optical system includes a luminous system which comprises a plurality of light source devices and an image unit; and a projection system which receives light...
8403495 Modular LED illumination system and method  
The present invention is directed to an illumination system. The illumination system comprises a plurality of modules such that each module comprises a plurality of light emitting diodes (LEDs)...
8403503 Freeform optical device and short standoff image projection  
A freeform optical device is disclosed which has an at least partially curved surface with a surface geometry. Surface normals at multiple locations on the surface geometry can be computed to...
8393737 Light engine using common building blocks  
A light engine combines light of first, second, and third color ranges using three pentagonal prism elements. Each prism has first and second diagonal surfaces. Each first diagonal surface has a...
8388150 Optical element having a toric surface  
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...
8382288 Projector with solid state light source  
A projector includes: a first solid-state light source device including a first solid-state light source emitting main excitation light, and a fluorescent layer converting the main excitation...
8382294 Method and apparatus for displaying an image on a communication device  
A method and apparatus for displaying an image on a communication device are provided. The communication device is formed of a housing (305) having a plurality of surfaces and includes an...
8376551 Illumination system for laser projection  
A color combining apparatus has first, second, and third color channels, each color channel having a light source that is energizable to direct light of a corresponding first, second, or third...
8371712 Light source module of projector  
A light source module of a projector includes a beam splitter, a red light source, a blue light source, and a blue light source. The beam splitter has a first reflection side, on which a first...
8350789 Image display apparatus  
A 2D image display apparatus using a laser light source. By controlling the timing of a scan by a beam scan portion in response to the characteristic of a laser light source and by setting a light...
8337021 Optical projection type image display device  
A projection type image display device using, in a projection optical system thereof, a flat mirror, which is easy to design and manufacture, as a projection mirror is provided. The projection...
8333476 Image projection apparatus and image display system  
An image projection apparatus includes light sources 111 to 113 emitting at least two colored lights whose wavelengths are different from each other, a polarization conversion element 2...

Matches 1 - 50 out of 439 1 2 3 4 5 6 7 8 9 >