Optics: image projectors inventions 09/09

20090237616 - Projection type image display device: A projection type image display device includes a LED light source, a polarizing plate, a crossdichroic mirror, three reflective spatial light modulation elements and a projection lens. The LED light source emits lights with three wavelengths. The polarizing plate transmits a first linear polarized light therethrough and reflects a second... Agent: The Nath Law Group

20090237617 - Projection apparatus, projection method, and medium: A projection apparatus comprises a projection unit which forms a picture corresponding to an input image signal and projects the formed picture onto an object, a specifying unit which specifies a region in the picture projected by the projection unit, and a projection control unit which causes the region of... Agent: Frishauf, Holtz, Goodman & Chick, PC

20090237618 - Illumination apparatus, projector, and illumination method: An illumination apparatus includes: a first light source section; a plurality of second light source sections; and an optical axis conversion element which allows a light incident from the first light source section to emit in such a way that an exiting optical axis of the light approximately coincides with... Agent: Oliff & Berridge, PLC

20090237619 - Liquid-cooling device and projector: In at least one embodiment of the disclosure, a liquid-cooling device to cool an optical element in a projector includes an optical element holding member configured to allow a flow of a cooling liquid therein and to hold the optical element so as to transfer heat to the cooling liquid.... Agent: Advantedge Law Group, LLC

20090237620 - Projector and reflection apparatus: A projector includes a light source, a light modulator that modulates the light flux emitted from the light source in accordance with an image signal to form image light, a projection optical apparatus that enlarges and projects the image light, a reflection section having a reflection surface disposed along the... Agent: Oliff & Berridge, PLC

20090237621 - Projection image display apparatus and projection optical unit to be used therein: if assuming that a distance for a light beam of an upper end of the enlarged image to reach the screen after being reflected upon a free shaped surface is “L1”, a distance for a light beam of a lower end of the enlarged image to reach the screen after... Agent: Townsend And Townsend And Crew, LLP

20090237624 - Discharge lamp lighting device, control method for the same, and projector: A discharge lamp lighting device includes: a power control circuit that outputs a DC current; an AC converter circuit that takes the DC current as its input, inverts polarity of the DC current between first polarity and second polarity in predetermined timing, and thereby generates and outputs an AC current... Agent: Advantedge Law Group, LLC

20090237625 - Discharge lamp lighting device, control method for the same, and projector: In at least one embodiment of the disclosure a discharge lamp lighting device includes a controller configured to control an AC conversion circuit to perform AC conversion control for controlling the timings at which a polarity of the discharge lamp driving AC current is reversed. The controller is configured to... Agent: Advantedge Law Group, LLC

20090237623 - Discharge lamp starter, method for controlling the same, and projector: In at least one embodiment of the disclosure a discharge lamp lighting apparatus includes a controller configured to control an AC conversion circuit to perform AC conversion control for controlling the timings at which a polarity of the discharge lamp driving AC current is reversed. The controller is configured to... Agent: Advantedge Law Group, LLC

20090237622 - Image display device: When a position detector detects that the position of a spot on a projection plane designates a non-projection region, the level of a driving signal of a laser is corrected. Specifically, the correlation between the quantity of laser light detected by a light-receiving portion and the level of the driving... Agent: Osha Liang L.L.P.

20090237626 - Projection optical system and light amount adjusting component used in the same: A light amount adjusting component adapted a projection optical system is provided. The light amount adjusting component has a light incident surface upon which a light beam impinges, and the light incident surface is provided with a surface structure for irregularly dispersing the light beam. A slot that permits the... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090237627 - Display apparatus using micro mirror unit, and method for controlling micro mirror unit: In a method for driving a micro mirror such as MEMS mirror and a display apparatus using the method, there are provided a mirror driving unit for driving the micro mirror which operates in a resonant mode and a nonresonant mode, a driving-condition setting unit for setting a mirror driving... Agent: Townsend And Townsend And Crew, LLP

20090237628 - Optical reflection device and image projector includng the same: An optical reflection device includes a mirror adapted to reflect light thereon, a first meander vibration beam supporting the mirror rotatably about the first rotation axis, a movable frame connected to the first meander vibration beam, a second meander vibration beam supporting the movable frame rotatably about a second rotation... Agent: Wenderoth, Lind & Ponack L.L.P.

20090237629 - Optical system for infinite image formation and method for fabricating camera module using the same: Disclosed are an optical system for infinite image formation and a method for fabricating a camera module using the optical system. The optical system includes a first lens unit including at least one lens; a projection chart capable of partially allowing light to pass therethrough; a backlight unit capable of... Agent: Saliwanchik Lloyd & Saliwanchik A Professional Association

20090237630 - Open-closed structure applied to a lamp door of a projector: An open-closed structure is used to open or close a lamp door of a projector. The projector includes a main lid. The lamp door covers the outer side of the main lid. The open-closed structure includes a base and a knob. The base is disposed at the inner side of... Agent: Bacon & Thomas, PLLC

20090231549 - Beam combining device and projector having such beam combining device: A beam combining device and a projector having such a beam combining device are provided. The projector includes a first color light source, a second color light source, a third color light source, a beam combining device, a light valve and a projection unit. The first color light source, the... Agent: Kirton And Mcconkie

20090231548 - Rear surface projection type image display device: The rear projection type image display apparatus includes a projector and a transmission type screen installed at an image formation plane of a projection light and made of a texture. The screen made of the texture is a diffusing material having a large half-power angle except for the direct light,... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090231550 - Laser display device: Provided is a laser display device capable of ensuring the safety of eyes and reducing speckle noise even if a screen is arranged at an arbitrary position. The laser display device includes a laser light source for emitting a laser light, a modulator for modulating the laser light and emitting... Agent: Wenderoth, Lind & Ponack L.L.P.

20090231551 - Digital imaging system: The present invention provides a projection system capable of making corrections to the shape of a projected light beam to take into account multiple irregularities in a projection surface. The invention also provides a projection system capable of adjusting the variation of intensity of a light beam projected on a... Agent: Heinz Grether PC G2 Technology Law

20090231554 - Discharge lamp lighting apparatus, method for controlling the same, and projector: A discharge lamp lighting apparatus includes a power control circuit that outputs a DC current, an AC conversion circuit to which the DC current is inputted, the AC conversion circuit repeatedly reversing the polarity of the DC current between a first polarity and a second polarity at predetermined timings to... Agent: Oliff & Berridge, PLC

20090231553 - Discharge lamp lighting device, control method thereof, and projector: A discharge lamp lighting device includes: a power control circuit outputting DC current; an AC conversion circuit being supplied with the DC current and generating and outputting discharge-lamp driving AC current by inverting the polarity of the DC current at a predetermined time; and a control unit performing a duty... Agent: Advantedge Law Group, LLC

20090231552 - Lighting system and method for operating a lighting system: A lighting system comprising a first light source, which is adapted to generate light signals of a first color, and at least one second light source, which is adapted to generate light signals of a second color, wherein the light sources are adapted to be driven so as to generate... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20090231555 - Projector: In a projection optical system comprising: two lens groups, and a curved plane mirror, wherein the projection optical system including two story structure, and having bend means for bending at least two times the light incident from an electro-optic modulator.... Agent: Oliff & Berridge, PLC

20090231556 - Projecting system and lens combination thereof: The invention discloses a projecting system. The projecting system includes two sets of lens. The first set of lens has a first focal length for focusing an incident ray of light to form a first image. The second set of lens has a second focal length for projecting the first... Agent: Morris Manning Martin LLP

20090225280 - Illuminating optical system for projector: An exemplary aspect of the present invention provides an illuminating optical system for a projector including a light source and a plurality of display panels, the illuminating optical system that includes a first integrator that includes a plurality of lens cells that divide a luminous flux emitted by the light... Agent: Mcginn Intellectual Property Law Group, PLLC

20090225281 - Projection display system and prism set and manufacturing method thereof: The present invention provides a projection display system and a prism set and manufacturing method thereof. The method for manufacturing the prism set includes the steps of providing a first prism, a second prism, a third prism and a fourth prism, wherein the length of the first prism is greater... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090225282 - Light source apparatus and projector: A light source apparatus includes a light source apparatus body that emits light, and a light source apparatus housing that houses the light source apparatus body. The light source apparatus body includes a connector that electrically connects the light source apparatus body to a light source driver. The light source... Agent: Advantedge Law Group, LLC

20090225283 - Projector: A projector for emitting projection light in a projection direction used in a floor set-wall projection and floor set-floor projection modes. The device includes an aspheric reflection mirror, which reflects light from a light source in the projection direction, and a case, which accommodates the mirror. The mirror reflects the... Agent: Occhiuti Rohlicek & Tsao, LLP

20090225284 - Projection lens module and optical projector: A projection lens module including a projection lens, a first transmission gear, and an adjusting ring is provided. The projection lens has a lens barrel, a driving ring, and an optical lens module. The driving ring has a plurality of first external teeth and rotates about a first axis. The... Agent: Jianq Chyun Intellectual Property Office

20090219488 - Diode or laser light source illumination systems: There is provided a first illumination system having at least three diode and/or laser light sources including a red, a green and a blue light source. The first illumination system further has at least three polarizing light converting elements corresponding to each colour of light sources, at least three liquid... Agent: Crockett & Crockett, P.C.

20090219489 - Projection optical system: Provided is a projection optical system including a first part which projects an image; a second part having an image forming device which forms an image using a light and emits the image to the first part, and having an axis angled toward an axis of the first part; a... Agent: Sughrue Mion, PLLC

20090219490 - Projection optical system: Provided is a projection optical system which includes a first optical part which projects an image; a second optical part having an image forming device, which forms an image using a light and emits the image to the first optical part; a third optical part having at least one light... Agent: Sughrue Mion, PLLC

20090219491 - Method of combining multiple gaussian beams for efficient uniform illumination of one-dimensional light modulators: An illumination system for transforming at least one laser light beam having a non-uniform distribution in a first axis and a second axis to a beam having a substantially uniform distribution in the first axis while preserving the non-uniform distribution in the second axis. The transformed beam may be imaged... Agent: Grant R Clayton Clayton Howarth & Cannon, PC

20090219492 - Detecting device: A detection device is mounted in a projector for detecting relations between an object and the projector. The detection device includes a detecting switch, a connector and a detecting circuit. When the object is placed into the detecting switch, the detecting switch is in an off state. When the object... Agent: Kirton And Mcconkie

20090219493 - Projection type display apparatus and method of controlling the same: According to one embodiment, a projection type display apparatus, which modulates a laser beam generated from a laser beam generating element according to an input video signal and projects the modulated laser beam onto a screen via a projection lens so as to display a video, sets a light quantity... Agent: Blakely Sokoloff Taylor & Zafman LLP