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7453475 |
Optical display device, program for controlling the optical display device, and method of controlling the optical display device
Exemplary embodiments of the invention provide an optical display device that modulates light from a light source in two stages through an optical modulator and a luminance adjusting element to...
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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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7445341 |
Four panel liquid crystal display system
A microdisplay projection system employs blue, red and green LED illuminators. Optics are provided to direct light from the blue LED illuminator to a blue LCD panel, to direct light from the red...
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7441904 |
Projection type display apparatus with ventilation
A projection type display apparatus includes a housing having a first side on which an air intake opening is arranged and a second side on which an air exhaust opening is arranged, a light source...
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7438421 |
Two-panel type projection system and projection method thereof
A two-panel type projection system includes a polarization light source to irradiate a polarized white light, a color selector to sequentially transmit two light components every predetermined time...
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7434940 |
Light coupling system and method
A light coupling system includes a waveguide, configured to receive light from at least two light sources and to internally reflect light therein; a diffraction grating, disposed upon the...
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7437039 |
Optical engine with tightly coupled light source
An image presentation device ( 100 ) with an associated optical light engine includes one or more semiconductor light emitting diodes or other such devices ( 122, 124, 126 ) that are combined to...
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7434945 |
Illuminating device and projection type video display apparatus
A projection type video display apparatus is provided with an LED array for emitting light in red, an LED array for emitting light in green, and an LED array for emitting light in blue. On a...
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7428062 |
Measuring apparatus for work held by chuck table, and laser beam machining apparatus
An apparatus for measuring the height of a work held by a chuck table provided in a machining apparatus, including: a white light source for emitting a white beam of light; a chromatic aberration...
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7426072 |
Display system
One embodiment of a display system includes an array that defines multiple, movable reflective devices on a front surface of the array, and multiple immovable reflective regions each aligned along...
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7422330 |
Illumination system and projection system using same
An illumination system, useful for generating illumination light in an image-projection system, has at least a first image-forming panel. A first array of light emitting elements, for example light...
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7420177 |
High-resolution-imaging system for scanned-column projectors
A system and method for generating a high-resolution image using a scanned-column projector is disclosed. The method includes the operation of generating a time-varying line image. A further...
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7419267 |
HDR displays with overlapping dual modulation
A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. Elements of the light modulator may be controlled to adjust the...
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7416306 |
Laser projector
A reflection-type laser projector ( 100 ) projects modulated laser beams outputted from a laser projection unit ( 40 ), on a screen, wherein a reflector ( 112 ) as a constituent of the screen ( 110...
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7413310 |
Spectral light division and recombination configuration as well as process for the spectrally selective modulation of light
A system and method for separating and combining three spectrums of light has a polarizing beamsplitter, an input retarder or polarizer located adjacent a first side of the polarizing beamsplitter,...
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7411722 |
Display system incorporating bilinear electromechanical grating device
A line scanned display system includes at least three different colors of illumination provided by one or more light sources, and at least one directional illumination optical system for directing...
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7404644 |
Time-sequential colour projection
A time-sequential colour projector comprises a pixellated light valve ( 2 ), such as a liquid crystal device, and a plurality of light sources ( 30, 31, 32 ). The light sources ( 30, 31, 32 )...
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7404645 |
Image and light source modulation for a digital display system
Image processing enhances display quality by controlling both the image modulator and the light sources. The image processing system utilizes a combination of user inputs, system configuration,...
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7405882 |
Image display device and projector
Aspects of the invention can provide an image display device for modulating light from a light source on the basis of display image data to display an image. The image display device can include a...
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7403318 |
Image display device, image display method, and image display program
An image display device having an optical modulation element, which modulates light emitted from a light source according to display information, and displaying a display image based on the display...
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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,...
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7400439 |
Uniform illumination system
A compact and efficient optical illumination system featuring planar multi-layered LED light source arrays concentrating their polarized or un-polarized output within a limited angular range. The...
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7399087 |
Segment type color wheel and manufacturing method of same
A color wheel includes a plurality of color filter segments disposed so as to form a disk configuration, and a support member to fixedly set the plurality of color filter segments in place. Each of...
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7399084 |
Laser image display apparatus
A light diffuser containing light diffusing elements is arranged in the most appropriate position between a spatial light modulator and an illumination optical system. Thereby, particles as light...
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7396130 |
Optical system, image projection apparatus and method thereof
An image projection apparatus. The image projection apparatus comprises a light source and LCD panel. The LCD panel comprises a plurality of pixels and color filters thereon. Light from the light...
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7396131 |
Projection assembly
Projection assemblies are provided herein for use in a display system. According to one exemplary embodiment, the projection assembly includes an illumination source and a plurality of co-planar...
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7393106 |
Color filter unit and projection system employing the same
A color filter unit and a projection system employing the same. The color filter unit includes a first color selection polarization conversion element, which converts a polarization direction of a...
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7394597 |
SLM projection display with series DMD illuminator
The addition of DMD illumination modulator(s) 702 in series with projection SLM(s) 706/709 to produce high-performance projection displays with improved optical efficiency, reliability, and...
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RE40397 |
Optical device and projector
In an optical device ( 44 ), an optical axis (A) of a projection lens ( 46 ) is shifted relative to a central axis (C) of an image formation area of a liquid crystal panel ( 441 ), and a central...
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7390093 |
Projection display with color segmented microdisplay panel
A single panel display may have discrete, dedicated segments associated with each of the primary colors. The segments may not be equally sized in some embodiments. The light from a light source may...
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7387390 |
Single-panel projection system
A single-panel projection system ( 1 ) includes a lighting device for generating collimated light, a beam splitter ( 30 ) for splitting the collimated light into a plurality of collimated beams, a...
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7387392 |
System and method for projecting sub-frames onto a surface
A display system includes a housing including a plurality of bays. The system includes a plurality of removable projector modules configured to project images onto a surface. Each projector module...
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7384153 |
Light source device and projector
A light source device is provided comprising: a light-emitting element; a support member having the light-emitting element flip chip mounted thereto; and a thermally conductive filling agent...
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7384150 |
Light emitting diode (LED) illumination control system and method
An LED illumination system includes control circuitry and first, second and third colored LEDs. The control circuitry sequentially drives the first, second and third colored LEDs in a color cycle...
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7377652 |
HDR displays having location specific modulation
A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. Elements of the light modulator may be controlled to adjust the...
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7377653 |
Color display apparatus having virtual single light origin
A color display apparatus having a virtual single light origin is disclosed. The color display apparatus includes an illumination lens system, a combining system, a Fourier filter and a projection...
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7377654 |
Projection-type display apparatus and control method for projection-type display apparatus as well as control program for projection-type display apparatus
Exemplary embodiments provide a projection-type display apparatus, which can address or realize a reduction in weight and size, a reduction in power consumption, and a reduction in noise, and...
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7375772 |
Color video projection system employing reflective liquid crystal display devices
A system including a light source, a polarizing beam splitter, and first, second and third light valves is provided. The light source produces light in first, second and third wavebands in a second...
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7374288 |
Image projection lighting device
An improved image projection lighting device is disclosed. Commands received by a communications port of the base housing may be acted upon to change zoom and focus values of a zoom and focus lens....
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7370972 |
Two-dimensional image display device
In a two-dimensional image display device, speckle noise is reduced by a simple construction. A two-dimensional image display device for displaying an image by projecting coherent light onto a...
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7367682 |
Color image projection arrangement and method
A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be...
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7367678 |
Single-plate color projector and synchronization adjusting method therefor
A single-plate color projector includes a color wheel for chromatically separating light emitted from a light source in time series. An image forming device optically modulates each separated color...
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7367677 |
High efficiency lighting system, scrolling unit and projection system employing the same
A highly efficient lighting system, a scrolling unit, and a projection system adopting the highly efficient lighting system and the scrolling unit are provided. The scrolling unit has at least one...
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7364305 |
Projector
A projector which is small in size and excellent in light utilization efficiency while keeping the advantage of a spatially-pixel-arrangement type is provided. The luminous flux emitted from a...
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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...
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7364306 |
Field sequential light source modulation for a digital display system
A digital display system consists of an image modulator and multiple light modulators. An image processing system processes an incoming data stream, scans processed data to an image modulator and...
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7360901 |
Cross dichroic mirror, illuminating device, and projection type video display
A projection type video display is provided with three LED light sources. A first LED light source emits a light in red, a second LED light source emits a light in green, and a third LED light...
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7357512 |
Color image projection system and method
An image projection system projects an image on a projection screen having a phosphor for converting incident violet light into green light which, together with red and blue light, creates the...
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7357513 |
System and method for driving semiconductor laser sources for displays
A light engine includes a multi-color laser source having a set of semiconductor lasers. A controller synchronizes the operation of the laser source to operate in a color sequential order with a...
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7354157 |
Image display device and light source device
An image display device includes a laser light source, a wavelength conversion element converting a wavelength of a light beam emitted from the laser light source into a predetermined wavelength,...
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