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Match Document Document Title
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...
7443594 Color display device using separate diffracted light and illumination light  
A display device includes a condenser unit, an illumination lens system, a plurality of diffractive light modulators, a mirror for separating illumination light from diffracted light, a polarized...
7440192 Optical system providing several beams from a single source  
A system to produce orthogonal beams includes a laser diode operating in conjunction with a collimating lens, with or without an aperture, and a simple compact optic. At least one collimated beam...
7440191 Method for manufacturing cross prism  
For the purpose of depositing deviation-free dichroic coatings of high plane rectitude, there is disclosed a method starting with preparation of glass assembly units each composed of first and...
7437034 Device for coupling the light of multiple light sources  
A device for coupling the light of multiple light sources ( 2, 3 ) that substantially consists of a reflectance surface ( 10, 11 ) for one or more of said light sources ( 2, 3 ) and at least one...
7429110 Projector-type image display apparatus  
At least one exemplary embodiment is directed to a projector which includes several optical elements, reflective devices and beam splitters, arranged to reduce back reflection effects. At least one...
7428104 Optical device for the combination of light beams  
An optical device for combining a first light beam and at least one second light beam includes a first beam splitting device, a second beam splitting device and a position detector. The first beam...
7411734 Color-splitting optical element and an optical system utilizing the color-splitting optical element  
A color-splitting optical element is disclosed that includes a first prism having a first transmissive curved outer side, a second transmissive curved outer side and an inner side. The...
7403320 2-channel display system comprising micro electro mechanical systems  
The two channel stereo display system with micro electromechanical systems (MEMS, e.g. DMDs from Texas Instruments) simultaneously generates a right and a left image in two discrete modulation...
7401925 Image projection system  
An image projector system includes an LED controller and first and second LEDs, a dichroic mirror. The LED controller controls the first and the second LED to emit first and second color lights,...
7400452 Method and apparatus for internal frames to improve performance and manufacturability of optical devices including liquid crystal on silicon (LCOS) based kernels  
Frames are used to hold and/or position components in precise positions in a prism assembly. The frames may be constructed using any of side caps, air gaps, recesses, and hold either a single or...
7390094 Method and apparatus to achieve a neutral dark state in image projection systems  
An absorptive layer is added to an image display system. The absorptive layer is selected to compensate for tint in a black state of a displayed image. In a Liquid Crystal On Silicon (LCOS) based...
7387391 Apparatus and method for mounting imagers on stress-sensitive polarizing beam splitters  
An optical device that includes an optical element, an imager, and a prism bracket. The optical element includes an optical element having first and second prisms coupled together. The imager is...
7369318 Color display device having single illuminating system  
A display device is disclosed herein. The display device includes a condenser unit, an illumination lens system, an optical modulation system, a filter system and a projection system. The condenser...
7364302 Projection display system using multiple light sources and polarizing element for using with same  
An image projection system has two illumination beams of different colors. A first polarizing beamsplitter (PBS) has first and second input faces. Light of the first color is incident on the first...
7360899 Beamsplitting structures and methods in optical systems  
Various embodiments involving structures and methods for illumination can be employed, for example, in projectors, head-mounted displays, helmet-mounted displays, back projection TVs, flat panel...
7357511 Stress birefringence compensation in polarizing beamsplitters and systems using same  
Some projection systems use a polarization beamsplitter (PBS) for coupling light to and from an image-forming device. The PBS is typically formed with a reflective polarizing layer disposed between...
7355797 Color display device using separate diffracted light and illumination light  
A display device is disclosed. The display device includes a condenser unit, an illumination lens system, a plurality of diffractive light modulators, a mirror for separating illumination light...
7352791 Optical systems including wavefront correcting optical surfaces  
The present invention relates to optical systems, beam expanding assemblies, line narrowing modules, and lasers having refractive optical elements with wavefront correcting optical surfaces. The...
7350928 Projection display system  
A projection display system comprises an illumination device, a prism assembly, a projection lens and a reflective light valve. The prism assembly has a first light incident surface, a first light...
7344254 Projection system with a common light source sharing system  
A projection display with a common light source sharing system for improved illumination uniformity is described. The common light source is coupled through a light-dividing prism to multiple...
7330315 Light-redirecting optical structures  
A plurality of microstructures is provided, with each microstructure having at least a first side and at least a second side terminating at a peak. At least some of the peaks can include an...
7322703 Light emitting apparatus and projector  
An light emitting apparatus which illuminates an illumination area has a first light source which emits a first light, a second light source which emits a second light, a wheel which is provided...
7313309 Optical device and color display unit using the optical device  
Optical device and color display unit to correct an angle of visibility, emphasize front brightness or diffusion degree, improve brightness and the performance of angle of visibility, and moreover...
7230763 Polarizing beamsplitter  
A polarizing beamsplitter is provided, comprising two wedge-shaped prisms of a birefringent material, the prisms forming a plan-parallel plate, wherein an incident light beam is separated into two...
7224531 Optical prism assembly  
An optical prism assembly. The optical prism assembly includes an isosceles triangular prism and a plurality of prism blocks. The isosceles triangular prism comprises a base angle, between 30° and...
7215474 Method and apparatus for combining optical beams  
According to one aspect of the present invention, an apparatus for optically combining light beams is disclosed. The apparatus includes a set of prism shaped doorways configured to receive output...
7210815 Optical device, illumination apparatus, and color illumination apparatus  
An optical device with a first incidence plane configured to enter rays coming from a first direction, a second incidence plane configured to enter rays coming from a second direction different...
7210788 Color prism and projection-type image display apparatus employing the same  
A color prism capable of separating incident light into four color beams and synthesizing incident four-color beams, and a projection-type image display apparatus employing the color prism. The...
7207676 Image projection apparatus  
A reflection type projector apparatus uses polarized beam filters that are resistant to fluctuations in incident angle as the light beam splitting elements and in which are provided for the blue...
7199932 Prism sheet, illuminating device, surface emitting device, and liquid crystal display device  
A surface emitting device includes a light guiding plate, a light source, and a prism sheet. The light guiding plate is provided with prism portions each having a slight inclined plane and a steep...
7199436 Attachment structure for solid-state imaging device  
An attachment structure is used for attaching a solid-state imaging device to a light exit end face of a color-separating prism. When bonding the light exit end face on the color-separating prism...
7196315 Eccentric optical system and optical apparatus using same  
An eccentric optical system forming an optical path where an incident light beam is internally reflected three times to fold the optical path, and then emitted from a transmission surface and...
7170696 Method and arrangement for deeply resolved optical detection of a sample  
A method and arrangement for the depth-resolved optical detection of a specimen with an illumination light distribution of at least one wavelength generated on or in a specimen and detection...
7167311 Polarizing beamsplitter  
A polarizing beamsplitter is provided, comprising two wedge-shaped prisms of a birefringent material, the prisms forming a plan-parallel plate, wherein an incident light beam is separated into two...
7118230 Holder frame, optical device and projector  
The invention provides a holder frame, optical device and projector which can prevent the substrate from deviating in position, the substrate from being compressed at the outer periphery and color...
7116479 Array polarization beamsplitter and combiner  
A method and apparatus is described to beam split or combine light for multiple fiber optic channels in a single device. Multiple light beams may enter the device through an array of fiber ports...
7114816 Fixing plate, optical device and projector  
The invention provides a fixing plate, optical device and projector capable of preventing against color unevenness occurrence and pixel deviation. Specifically, in each of the four sides of a...
7106518 Optical unit and image display apparatus  
The present invention discloses the structure of the array lens that at least any one of the diagonal size, vertical size and lateral size of lens cell is set to almost 1/(4.5 or more) for each...
7094452 Antireflective member and electronic equipment using same  
An antireflective member with stability and a low reflectance at low cost may be provided by performing an antireflective treatment to a substrate in a molding process of the substrate. A roughened...
7092167 Optical system providing four beams from a single source  
A system to produce orthogonal beams includes a laser diode operating in conjunction with a collimating lens, an aperture, and a simple compact optic. Three collimated beams are directed toward an...
7075739 Assembly for correcting laser illumination emitted from a laser light source and method for producing said assembly  
The invention relates to an assembly for correcting laser illumination emitted from a laser light source, comprising a laser light source, which has linear emission sources that are arranged in a...
7006309 Prism unit and laser device  
A prism unit, which is capable of firmly fixing a plurality of prism parts in a small space, and a laser device, which is capable of enhancing output power of laser light with use of the prism...
7006298 Optical system providing four beams from a single source  
A system to produce orthogonal beams includes a laser diode operating in conjunction with a collimating lens, an aperture, and a simple compact optic. Three collimated beams are directed toward an...
6992830 Projection display having an angle-selective coating for enhanced image contrast, and method for enhancing image contrast  
A projection display includes a light source, a spatial light modulator that receives a light from the light source, and an angle-selective coating disposed to receive the light beam from the...
6984041 Color-separating and -recombining optical system  
A color-separating and -recombining optical system provided between a light source and a projection lens in a projection display, has at least one prism assembly made up of at least two prisms...
6958861 Method and apparatus for combining optical beams  
According to one aspect of the present invention, an apparatus for optically combining light beams is disclosed. The apparatus includes a set of prism shaped doorways configured to receive output...
6943956 Combiner and on-vehicle display unit including the same  
The combiner 1 has a resin base 11 and a reflecting and polarizing member 12 . The reflecting and polarizing member 12 is unitarily molded with the resin base 11 as an insert and has a...
6942347 Color combining optical system, image projection optical system, and projection type image display apparatus  
A color combining optical system according to this invention aims at reducing the size of an optical system and suppressing the occurrence of color unevenness. According to this invention, there is...
6927919 Collimating lens, collimating system, and image displaying apparatus using collimating system  
A collimating lens and a collimating system which condense light emitted from a light source with directivity at a high efficiency and a projection type image displaying apparatus using the same....
Matches 1 - 50 out of 277 1 2 3 4 5 6 >