Optics: image projectors inventions 09/07

20070222952 - Projection type video display: A projection type video display for displaying a video by casting light that is emitted from a lamp (1) serving as a light source and modulated on the basis of a video signal, has lamp cooling means (3) for cooling the lamp 1. The video display comprises: detection means (lamp... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070222949 - Light combining/projecting system for outputting light beams of the same polarization: A light combining/projecting system for outputting light beams of the same polarization includes a light-emitting module, a dichroic mirror, a reflective mirror module, a PBS module, an image-displaying module, and a light-combining module. The PBS module has a first, a second, and a third PBS respectively and integratedly arranged on... Agent: Rosenberg, Klein & Lee

20070222950 - Projection apparatus and illmination system: A projection apparatus including an illumination system, a display device and an imaging system is described. The illumination system includes a light source for providing a light beam and an optical mirror disposed on a transmission path of the light beam. In particular, an angle is existed between the optical... Agent: J.c. Patents, Inc. Suite 250

20070222951 - Rear projection display device and transmission screen: A rear projection display device includes: a housing; a transmission screen provided on the front surface of the housing; and a video projector installed in the housing configured to project a video image to the transmission screen from the rear side. The transmission screen includes a frame, a quadrilateral lens... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070222953 - Determining the displacement of micromirrors in a projection system: A projection system including a light source, such as laser light source, wherein a projection light beam is generated by means of an oscillating mirror starting from the light source. At least one light sensor is provided in the marginal zone of the projection light beam for detecting the position... Agent: Bell, Boyd & Lloyd, LLP

20070222954 - Image display unit: A point light source array 12 composed of a large number of point light sources 120 which are arranged dispersedly in a plane direction in an array is provided such that the point light source 120 to be focused on the pupil shifts to its adjacent point light source 120... Agent: Posz Law Group, PLC

20070216869 - Projection type image display apparatus: A high-luminance projection type image display apparatus is realized by improving a conventional polarization converter unit. Light-beam split means 21 for splitting light from a light source is arranged before a polarization converter unit 960 having a plurality of incidence surfaces, and the light coming from the polarization converter unit... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070216871 - Projector: A projector capable of preventing a light tunnel from positional deviation is obtained. This projector comprises a rectangular light tunnel having a hollow light guide path capable of passing light therethrough for shaping the light with the light guide path, an optical component holding member provided with a holding portion... Agent: Crowell & Moring LLP Intellectual Property Group

20070216873 - Projection apparatus: There is provided a projection apparatus in which a cover glass can be attached to a light source unit easily and with a low cost, and breaking or dropping-off of the cover glass when an impact is applied, and a short circuit or electric leak when the light source is... Agent: Osha Liang L.L.P.

20070216874 - Projector: A direction control plate is fitted near an exhaust aperture of a lamp unit, and a partition plate is fitted so as to surround the front and the bottom of the exhaust aperture. The direction control plate includes an upper plate, a side plate, and a lower plate, and is... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20070216876 - Projection apparatus, projection method, and computer program: Light emitted from a lamp enters a color wheel having a region for allowing a predetermined color to pass therethrough, is reflected on a mirror, and enters a DMD. After this, the light is reflected by the DMD and enters a color sensor, which then detects the color of the... Agent: Frishauf, Holtz, Goodman & Chick, PC

20070216878 - Distance measuring device and laser beam projector therefor: A laser beam projector has a laser light source that outputs a laser beam, a light projecting mirror for reflecting the laser beam outputted from the laser light source, a mirror driving device for oscillating the light projecting mirror so as to scan a specified area with the laser beam... Agent: Beyer Weaver LLP

20070216879 - Projection apparatus: The projector including a light tunnel for passing the light emitted from a lamp and changing the light to condensed uniform light, a mirror for reflecting the light passed through the light tunnel, a DMD for reflecting the light at an image forming surface irradiated with the light reflected by... Agent: Osha Liang L.L.P.

20070216870 - Projection system and method: A method and system are provided for projecting a three dimensional image. A projection system may include a holding tank for storing a reservoir containing a projection medium and a projector including a plurality of valves for projecting the medium from the holding tank. The projection system may also include... Agent: Shook, Hardy & Bacon L.L.P. (c/o Microsoft Corporation)

20070216872 - Two- stage projector architecture: A light projection system is provided for projecting an image comprising a matrix of light pixels having modulated luminance. The projection system includes a first imager and a second imager having corresponding matrices of pixels. A relay lens system projects the output matrix from the first imager onto the second... Agent: Joseph J. Laks, Vice President Thomson Licensing LLC

20070216875 - Rear projection display apparatus and transmission type screen: A rear projection display apparatus includes a transmission type screen and a video projector. The transmission type screen is installed on the front face of an apparatus main body. The video projector is disposed inside the apparatus main body and projecting video on the transmission type screen from the rear... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070216877 - Projection module and projector incorporating same: The invention relates to a projection module intended to project an image on a screen defining a specified projection plane. The module comprises: an objective, which itself comprises means for emitting an imaging beam; a curved mirror; and at least two deflection surfaces for deflecting the imaging beam, these surfaces... Agent: Joseph J. Laks, Vice President Thomson Licensing LLC

20070211218 - Image display device and projector: There is provided an image display device with a two-modulation optical system for displaying an image corresponding to input image signals. The image display device includes a first optical modulation element for turning on or off pixels every subfield in the unit of plane; and second optical modulation elements for... Agent: Oliff & Berridge, PLC

20070211220 - Display apparatus: In conjunction with attachment or detachment of a dust filter, a lid disposed to an inlet of a duct operates to close the inlet.... Agent: Mcdermott Will & Emery LLP

20070211221 - Projection device capable of determining timing for replacing filters and method thereof: When a projection device is operating, a sensor detects a current temperature inside the projection device. If a temperature variation between an initial working temperature of the projection device and the current temperature is equal to or greater than a predetermined value, the projection device outputs a warning signal to... Agent: North America Intellectual Property Corporation

20070211224 - Projection device capable of determining whether a light source has been cooled down before a turn-on procedure and method for controlling a turn-on procedure of a projection device: While turning on a projection device, the projection device determines whether a light source has been cooled down. If so, the projection device directly turns on the light source. Otherwise, the projection device performs a cooling procedure, and then turns on the light source.... Agent: North America Intellectual Property Corporation

20070211215 - Method for creating kaleidoscopic interfaces for use in biofeedback: A method for creating a biofeedback controlled Kaleidoscope is disclosed, where the Kaleidoscope is controlled by two or more streams of input derived from physiological measurements and provides positive and negative reinforcement for each of the streams of input, where the method includes the steps of selecting a Kaleidoscope Object... Agent: Bruce J. Clark 2nd Floor

20070211216 - Stereoscopic display device and method: In a one-dimensional IP (vertical disparity discarding system), it is made possible to obtain a perspective projection image with no distortion or reduced distortion. A stereoscopic display device is provided with a display device including a display plane in which pixels are arranged flatly in a matrix shape; and a... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070211217 - Highly efficient single panel and two panel projection engines: Single imager projection systems suffer from low light throughput, compared to three imager systems, because only one color band is illuminated at any one time. As a result, there is a need to increase the operating efficiency of the single imager projection system. The invention is directed to the incorporation... Agent: 3m Innovative Properties Company

20070211219 - Light assembly for an image projector: A light assembly includes a heat-dissipating device, a light-emitting device, and a reflector. The heat-dissipating device defines an accommodating space. The light-emitting device is disposed in the accommodating space. The reflector serves to reflect light emitted by the light-emitting device, extends into the accommodating space, and surrounds the light-emitting device.... Agent: Davidson Berquist Jackson & Gowdey LLP

20070211222 - Rear projection display apparatus and transmission type screen: In a rear projection display apparatus including a transmission type screen installed on the front face of an apparatus main body, and a video projector disposed inside the apparatus main body and projecting video on the transmission type screen from the rear side thereof, the transmission type screen includes a... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070211223 - System and method for projection systems using sequential color techniques: A projection system using a sequential color filter is provided. The sequential color filter utilizes red, green, and blue segments with an additional segment that allows brighter yellows and higher color temperatures to be formed efficiently. In an embodiment the additional segment comprises a mixed-transmission level region that partially blocks... Agent: Texas Instruments Incorporated

20070211225 - Apparatus and method that present projection image: An apparatus that presents a projection image has a screen and plural projectors, each of which projects a section of the projection image onto the screen. The apparatus has a projected-section-determining unit that determines as a projected section the section of the projection image, based on an input image signal,... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070211226 - Light leakage preventive structure for front projector: A light leakage preventive structure for front projector includes an octagonal mask fixedly disposed before a lens of the projector, so that a projected image sequentially passes the lens and the mask to effectively prevent light leakage around a screen showing the projected image.... Agent: Rosenberg, Klein & Lee

20070211227 - Projection display device and projection display system: A projection display device D includes an acquiring means 2 that acquires a pixel value Cg and a depth value Cz for each of a plurality of pixels constituting an image, a light output means 3 that outputs pixel display light Ld per pixel according to the pixel value, a... Agent: Oliff & Berridge, PLC

20070211228 - Rotational member, rotational member of projector and projector: A rotational member inhibitable from coming off a support member is obtained. This rotational member comprises a rotational portion rotatably mounted on a support member, a pair of arcuate portions provided on a side of the rotational portion closer to the support member to extend from the rotational portion and... Agent: Crowell & Moring LLP Intellectual Property Group

20070211229 - Projector: A projector, includes: a light source, an optical modulator that modulates a light beam emitted from the light source to form an optical image, a projection optical device that projects the formed optical image, an exterior casing that accommodates the light source, the optical modulator and the projection optical device,... Agent: Oliff & Berridge, PLC

20070211230 - Bulb sorting device and sorting method thereof: A bulb-sorting device is provided. The bulb-sorting device includes a positioning mechanism and a sensing element. The positioning mechanism is for fixing a bulb. The bulb has a first referred object and a second referred object. The first referred object and the second referred object are aligned along a referred... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20070206157 - Optical device and projector: An optical device is provided which includes a plurality of optical modulation devices, plurality of optical elements, and a prism having a plurality of luminous flux incidence surfaces positioned on a luminous flux irradiation-side of each optical element. The optical device includes a holding member which holds at least one... Agent: Advantedge Law Group, LLC

20070206158 - Optical device and projector: An optical device includes: a light modulation element that modulates a luminous flux emitted from a light source; a casing that houses the light modulation element; a holding member that holds the light modulation element and exposes a part thereof to outside; a refrigerant housed in a housing space surrounded... Agent: Oliff & Berridge, PLC

20070206162 - Optical projection apparatus: An optical projection apparatus comprising an illumination system, a light valve, an imaging system, a power supply circuit and a generator are provided. The illumination system with a color wheel is providing a light beam. The light valve is disposed on the transmitting path of the light beam for transforming... Agent: J C Patents, Inc.

20070206163 - Projector: A projector includes a lens cover which is slidable relative to a chassis for covering and exposing a projection aperture of a projection lens. A detecting section includes a light emitting portion which projects a light beam and detects the opened state or closed state of the lens cover depending... Agent: Advantedge Law Group, LLC

20070206155 - Steady state surface mode device for stereoscopic projection: A modulator and system used to display motion pictures is provided. The design comprises a sheet polarizer and a SMD electro-optical modulator configured to operate in a steady state (non-switching) mode. The modulator is formed from two substantially parallel relatively clear plates, such as glass, two coatings of a transparent... Agent: Smyrski Law Group, A Professional Corporation

20070206156 - One-way transparent display systems: A display system includes a projection screen and a projector. The projection screen includes a retarder plate between a polarizer and a transparent screen. The projector projects an image through the polarizer and the retarder plate onto the transparent screen. The image is visible from a first side of the... Agent: Patent Law Group LLP

20070206159 - Method for correcting for distortion of projected image, program for correcting image distortion, and projection-type image display device: An image distortion correction method is provided which is capable of correcting for distortion of a projected image by designating an arbitrary correction point by using a simple and easy operation without independently providing a display device and/or a pointing device. The distortion correction method includes a first step of... Agent: Sughrue Mion, PLLC

20070206160 - 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 to require optimization of only half the optical system. The mirror may also provide a geometrically distorted image... Agent: Crockett & Crockett

20070206161 - Rear projection display apparatus and transmission type screen: A rear projection display apparatus is provided which includes a transmission type screen installed on the front face of an apparatus main body, and a video projector disposed inside the apparatus main body and projecting video on the transmission type screen from the rear side thereof. The transmission type screen... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070206164 - Light emitting diode projection display systems: A projection display system has at least one light-recycling illumination system and at least one imaging light modulator. The light-recycling illumination system includes a light source that is enclosed within a light-recycling cavity. The light source is a plurality of light-emitting diode that emits light, and a fraction of that... Agent: William Propp, Esq. Goldeneye, Inc.

20070206165 - Projection display: Uniform light quantity distribution is achieved in an image display element by directing light beam reflected in an A quadrant of X-Y plane coordinate system of a reflector into a B quadrant of the X-Y plane coordinate system of the image displaying element, when the X-Y plane coordinate system is... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070206166 - Light-projecting system for a projector and method of projecting light thereof: A light-projecting system includes a lamp module, a lens module and a uniform light module. The lamp module has a light source and a reflector for surrounding a part of the light source, wherein the light source is used to produce light signals, and the reflector is used to receive... Agent: Rosenberg, Klein & Lee