Optics: image projectors inventions 06/06

20060139574 - Projection system including intrinsic polarizer: A projection system including an intrinsic polarizer is disclosed. The projection system includes a light source producing illumination light, an imager disposed to receive the illumination light, and a projection lens disposed to receive the illumination light from the imager. The imager includes an intrinsic polarizer. An intrinsic polarizer stack...

20060139575 - Optical collection and distribution system and method: An optical module includes a light source and a reflective substrate. A first optical medium is disposed such that the first optical medium in combination with the reflective substrate substantially envelops the light source. A second optical medium is disposed to contact the first optical medium, defining a boundary therebetween....

20060139576 - Projection display device: A projection type display apparatus employing a liquid-cooled cathode-ray tube apparatus that copes with the leakage of cooling liquid. The projection type display apparatus employs a liquid-cooled cathode-ray tube apparatus provided with a liquid-cooling unit in which cooling liquid to cool the front panel of a cathode-ray tube is sealed....

20060139577 - Rear projection display: A rear projection display, not requiring a dichroic prism, and capable of rendering a generation system of each image light in color independent of the other generation systems so as to optimally construct and improve easiness of assembly of, and so on, each generation system, is provided. Each unit for...

20060139578 - Projection system using a high-pressure discharge lamp adapted to d.c. lighting, and method of operating the same: This invention provides a method of operating a projection system wherein light emitted from a high-pressure discharge lamp being lit with d.c. lamp current is passed through color segments of a color filter sequentially and then reflected by an optical element to project an image on a screen, the color...

20060139579 - Video projector for dome screen: An image is projected, without reducing in resolution, onto the full dome surface by the use of a single-eye fisheye lens. A video projector has a single-eye fisheye lens 7 for projecting a beam of light from an image display device onto the dome surface, a plurality of image display...

20060139580 - Illumination system using multiple light sources with integrating tunnel and projection systems using same: An illumination system, such as may be used to illuminate an image display device in an image projection system, includes a plurality of light sources capable of emitting output light. In some embodiments, the light sources are light emitting diodes (LEDs). The light-collecting system transforms light from the plurality of...

20060139581 - Projection device: In a projection device comprising 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 partial optics, the projection optics have an optical axis. Each optical boundary surface of each lens of the first...

20060139582 - Projection display apparatus and focus adjustment method for the same: In a projection display apparatus of this invention, a projection lens projects an image onto a screen. A video signal output circuit outputs a distance measurement image to the lens. A line sensor receives, by a plurality of light-receiving elements aligned along a direction crossing the projection optical axis of...

20060132715 - Wireless audio output assembly for projectors: The present invention discloses an improved wireless audio output assembly for projectors, which comprises a system unit having a projector circuit therein and a projector lens disposed on the exterior of the system unit, and the system unit has a card-type wireless audio output circuit installed therein and a wireless...

20060132716 - Laser-based display with position sensitive detector: A display apparatus includes a luminescent screen having pixels formed from blue, green and red luminescent material that are selectively activated by a laser beam to generate a full color image. The display utilizes a closed loop laser scanning/modulating arrangement in which a Position Sensitive Device (PSD) located next to...

20060132717 - System and method of image enhancement through light intensity modulation in digital projectors: Systems and methods for image enhancement are disclosed. The system includes a light source adapted to generate a light beam and a light integration unit positioned along a light path of the light beam. A light intensity modulator is positioned between the light source and an exit of the light...

20060132718 - Prism assembly for separating light: A prism assembly is provided. The prism assembly comprises a first prism component having a triangular cross-section along an optical path, a second prism component having a first quadrilateral cross-section along the optical path, a third prism component having a second quadrilateral cross-section along the optical path, a first dichroic...

20060132719 - Prism assembly for separating light: A prism assembly is provided. The prism assembly comprises a first prism component having a triangular cross-section along an optical path, a second prism component having a first quadrilateral cross-section along the optical path, a third prism component having a second quadrilateral cross-section along the optical path, a fourth prism...

20060132720 - Color wheel unit and optical engine having the same: The present invention relates to a color wheel unit comprising a color wheel having a rotatable filter supporter and a plurality of color filters radially attached to the filter supporter; a color wheel supporter for rotatably supporting the color wheel; a projection provided in at least one of the color...

20060132722 - Projection system or lighting device: Projection system or lighting device which is provided of a color sequential device as for example a color wheel (6), a rotating prism or other, wherein the color sequential device consists of a combination of at least one of the primary colors Red, Green and Blue with at least one...

20060132721 - Single light valve projection device and method for projecting images: An improved single light valve projection device comprising a metal halide lamp which driven by alternating current (AC); a relay-optic, consisting of an optical assembly; a single light valve element; a rotating color wheel which is positioned in between said metal halide lamp and the relay-optic and which color wheel...

20060132723 - Optical system and rear projector: An optical system that projects projection light from an image generating device, onto a screen is provided. The optical system comprises: a lens system on which the projection light from the image generating device is incident; and an aspherical mirror with negative power as a whole that is disposed on...

20060132724 - Projector: A projector including a shiftable projection lens unit is disclosed. The projector includes an illumination unit adapted to emit generated light, a micro device adapted to receive the light from the illumination unit, and to produce an image using the received light, a projection lens unit adapted to emit the...

20060132725 - Illuminating device and projection type image display unit: An illuminating device (1) is formed of a light source (12) in which LED chips (11) are arranged in an array shape and lens cells (14) are arranged on a light-emission side of each of the LED chips (11), and a pair of fly's eye lenses (13) that integrates and...

20060132726 - Offset projection system: A projection system comprising an illumination relay, a coupling lens, a modulation device, and a projection lens is provided. The illumination relay is configured to provide an illumination beam to the coupling lens along an illumination path having a first optical axis. The coupling lens is configured to direct the...

20060132727 - Projection lens unit and thin projector using the same: A projection lens unit and a thin projector using the same are disclosed. The projection lens unit includes a plurality of lens sets for emitting light carrying an image, and a reflector arranged between adjacent ones of the lens sets or at a downstream end of the lens sets, and...

20060132728 - Thin projector: A thin projector is disclosed. The thin projector includes a housing having an upright panel shape, an illumination unit arranged in the interior of the housing, the illumination unit generating light and emitting the generated light, a micro device arranged in the interior of the housing, the micro device receiving...

20060132729 - Method and apparatus for adjusting relative disposition of projection optics based on operating conditions: A system, method, and apparatus for sensing an operational condition of a projection device and generating a signal to be used in the adjustment of the relative disposition of a component of the projection device, are disclosed herein....

20060126020 - Optical unit and pojection type image display unit using it: An optical unit, comprising: a light source; a color separation means for separating a light emitted from the light source into plural pieces of color lights; reflection-type image display elements, upon each being incident the corresponding color of the lights from the color separation means, and for forming an optical...

20060126023 - 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 image in full color. The screen includes an apertured mask having apertures filled with the phosphor, or a phosphor...

20060126024 - Color micro-mirror projectors: A micro-mirror projector (2) includes a light source (100), a converging member (200), a color wheel (300) having red, green and blue segments, a shaping member (400), a micro-mirror chip (500) having a plurality of micro-mirror members (540) formed thereon, a diffraction member (600), and a projection member (700). The...

20060126025 - 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. A cooling system may be provided which compares an input air temperature of the image projection...

20060126022 - Laser illuminated projection displays: A projection video display includes at least one laser for delivering a light beam. The display includes a beam homogenizer and a condenser lens. A scanning arrangement is provided for scanning the light in beam in a particular pattern over the condenser lens in a manner that effectively increases the...

20060126021 - Scrolling color system with ac-operated lamp: A color projection system is disclosed, comprising a light valve device (4) for modulating light incident thereon in accordance with information of the image to be displayed, an AC-operated light source (1) for generating light of at least two different colors, and an illumination unit (3) for illuminating said light...

20060126026 - Projector: A projector includes: a light source device that emits substantially parallel illumination light; a first lens array having a plurality of first small lenses each of which divides the illumination light coming from the light source device into a plurality of partial light fluxes; a second lens array having a...

20060126027 - Projection type display device: There is a need for allowing an exhaust direction of a cooling air to be appropriately changed according to an installation environment of a projection type display device. There is another need to achieve a system for preventing an intake air and an exhaust air from being circulated therebetween by...

20060126028 - Device for simultaneously projecting images and illuminating the ambient: A device (1) for projecting images (2) onto a projection surface (3), having an electro-optical arrangement (29) for generating and emitting light on the basis of image data, and having an optical system (9) for directing the light onto the projection surface (3), which optical system (9) has a movable...

20060126029 - Projection optical system: A projection optical system is disclosed with which undistorted images can be obtained at any image position within a specification range, and whose projection angle can be changed. The projection optical system includes a plurality of optical elements and a first optical system constituted by at least one of the...

20060126030 - Color wheel apparatus and optical engine having the same: Disclosed is a color wheel apparatus for a DLP type display device having a color wheel unit, which has a color filter and a rotation part for supporting the color filter and rotating integrally with the color filter; a color wheel supporter for rotatably supporting the color wheel unit; a...

20060126031 - Illumination optical system of projection apparatus: An illumination optical system of a projection apparatus including a light source for emitting light, a light uniformity means shaped like a hexahedron, whose cross section becomes gradually larger from an input terminal to an output terminal and outputting uniform light through the output terminal when input with the light...

20060126033 - Light source device and projector: A light source device includes a light-emitting tube and a reflector. The light-emitting tube has a light-emitting portion that generates a light beam by an electric discharge between electrodes, and sealing portions provided on both sides of the light-emitting portion. The light-emitting tube has a sub-reflection mirror that covers substantially...

20060126032 - Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus: A projection optical system guiding and projecting a light beam from a projected object surface onto a projection surface in an upstream-downstream direction through a transmission dioptric system and a reflection dioptric system of one or two reflecting mirrors. An intermediate image surface of the projected object surface is positioned...

20060126034 - Optical projection device: An optical projection device including a light source, a housing, an imaging unit, a projection lens and a dust protection device is provided. The light source is adopted for providing a light beam. The housing has a projection-lens-assembling opening. The imaging unit is disposed in the housing, and on the...

20060126035 - Projector apparatus: There is provided a projector apparatus having an image forming optical system including a plate fixed to a housing, and a plurality of reflecting mirrors attached to the plate through respective holding members. The material of the reflecting mirrors, and the materials of the plate and the holding members have...

20060114415 - Autostereoscopic display: An autostereoscopic display having an improved 2D/3D mode switchable structure. The autostereoscopic display includes: a display device to display an image, and a parallax barrier unit to transmit all incident light in a 2D mode, and to separate a left-eye image and a right-eye image by forming a barrier in...

20060114416 - Dynamic range and contrast enhancement for microdisplay: The invention relates to a light valve system that enhances the contrast ratio for light and dark video images and reduces contouring artifacts. The light valve system comprises a color selection device configured to temporally attenuate component color bands of light to correspond with a video input signal. A first...

20060114417 - Illumination unit and projection type image display apparatus employing the same: An illumination unit with an improved color synthesis prism, which can synthesize light beams emitted from compact light sources, and a projection type image display apparatus employing the illumination unit. The illumination unit includes first, second, and third light source units to emit first, second, and third light beams of...

20060114418 - Illumination optical apparatus and projection type display apparatus: An illumination optical apparatus and a projection type display apparatus capable of preventing an image on boundary lines of a fly-eye lens from deviating from a designed position and preventing unevenness of brightness is provided: wherein a first lens holding member holding said first fly-eye lens; a second lens holding...

20060114419 - Projection system and method: A micromechanical mirror combined with a photoluminescent screen is able to efficiently use light from the light source. In such a device, the light source produces light that is directed onto the micromechanical mirror. The micromechanical mirror then selectively reflects the light onto a photoluminescent screen. The light excites the...

20060114420 - Illumination unit and projection type image display apparatus employing the same: An illumination unit includes first, second, third, and fourth light source units to emit first, second, third, and fourth light beams of different wavelength bands, and a hexahedral color synthesis prism to synthesize the first, second, third, and fourth light beams emitted from the first, second, third, and fourth light...

20060114423 - 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 light-incident side of a rod integrator, time-dividing mirrors 2A, 2B arranged in a cross...

20060114422 - Image display device: Aspects of the invention can provide an image display device that can include light sources provided, respectively, for regions obtained by dividing an image forming region of an electro-optic modulator into plural regions to irradiate corresponding regions, and a light source control portion that performs lighting control on the light...

20060114421 - Image projector with a two-dimensional array of light-emitting units: The invention relates to a method of providing images on a screen and to an image projection device. The image projection device (10) comprises at least one first set (12) of light-emitting units provided in an array including at least two lines of light-emitting units having at least two light-emitting...

20060114427 - Lens device and projector having diaphragm mechanisms with apertures having inwardly curved sides: The invention provides A lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens device has a diaphragm mechanism...

20060114428 - Lens device and projector having diaphragm mechanisms with substantially square apertures: The invention provides a lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens device has a diaphragm mechanism...

20060114425 - Lens device and projector having diaphragm mechanisms with substantially trapezoidal apertures: The invention provides a lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens device has a diaphragm mechanism...

20060114426 - Lens device and projector having diaphragm mechanisms with substantially triangular apertures: The invention provides a lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens device has a diaphragm mechanism...

20060114424 - Projector having an image signal controller: The invention provides a projector having a light source, a display device to modulate light emitted from the light source, a lens device to project light emitted from the light source and modulated by the display device, wherein the lens device comprises a diaphragm mechanism, an image signal intensity detector...

20060114429 - Architecture for a projector: An improved architecture for a projector comprising a light source in the form a lamp with a curved reflector with a distinctive focal distance for converging the light beam of the lamp; a so called cold mirror; an integration rod; a relay optics system consisting of a plurality of lenses...

20060114430 - 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, at least one of which is a curved reflective surface having an optical power. Letting the curved reflective surface, out...

20060114431 - Projector: A projector comprises: a projector main frame having a memory for storing an image in form of data and a projection lens for projecting the image, in which the image stored in the memory is read and visualized, so that the visualized image is projected via the projection lens onto...