Optics: image projectors inventions 04/07

20070091268 - Ceiling attached mirror surface screen: A ceiling attached mirror surface screen to be installed on a car top of vehicles to provide displaying and mirror function for user grooming includes a base, a face panel, a screen and a transparent reflective mirror. The base has a housing recess to hold the face panel. The face... Agent: Bruce H. Troxell

20070091271 - Illumination apparatus and image projection apparatus using the illumination apparatus: An illumination apparatus comprises a small-plane light source having diffusion radiation characteristics, a columnar light leading member, having an incident end surface, an outgoing radiation end surface and a reflection surface, configured to reflect on the reflection surface, at least a part of a light ray from small-plane light source... Agent: Volpe And Koenig, P.C.

20070091269 - Projector: A projector includes an illuminating device having a light source device, a first lens array having plural first small lenses, a second lens array having plural second small lenses corresponding to the plural first small lenses, and a superposing lens; an electro-optic modulator, and a projection optical system. A conjugate... Agent: Oliff & Berridge, PLC

20070091270 - Projector: A projector comprises: an illumination device, a first lens array having a plurality of first small lenses arrayed in a matrix, a second lens array having a plurality of second small lenses corresponding to the plurality of first small lenses are arrayed in a matrix in a plane perpendicular to... Agent: Oliff & Berridge, PLC

20070091273 - Monitoring devices for inhaler valves: The operation of a valve in a medicant dispenser for example, is monitored by an optical system. When the valve is first moved to its open position, a light passage from a valve component to a light sensor is defined. Upon each subsequent operation of the valve which allows light... Agent: Hoffman Warnick & D'alessandro, LLC

20070091274 - Pixel-shifting projection lens assembly to provide optical interlacing for increased addressability: A projection display system includes a projection lens assembly that has multiple projection lens elements that are configured to receive light imparted with display information by a pixelated display device. The projection lens elements project the light toward a display screen. A pixel-shifting element is included within the projection lens... Agent: 3m Innovative Properties Company

20070091272 - 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 modulator panels. A method of modulating light is also provided herein that includes generating multi-component light, splitting the multi-component light into a... Agent: Hewlett Packard Company

20070091275 - Cooling apparatus: A cooling apparatus arranged in a vacuum or reduced pressure atmosphere for use with an optical element having an illuminated area onto which light is irradiated concave part includes a temperature variation mechanism that changes a temperature of part of the cooling apparatus in a non-contact manner.... Agent: Morgan & Finnegan, L.L.P.

20070091276 - Projector: A projector includes: a casing having a surface; a cooling medium flowpath provided inside the casing, through which a cooling medium is allowed to flow; and a radiator in which a part of the cooling medium flowpath is arranged, the radiator being deployable by rotating with respect to the casing,... Agent: Oliff & Berridge, PLC

20070091277 - Luminance based multiple projector system: A method of displaying a high-resolution image with a multi-projector display system. The method includes determining a luminance profile for each projector, receiving a high-resolution image frame representative of the high-resolution image, and generating for each projector a low-resolution sub-frame corresponding to the high-resolution image frame based on a geometric... Agent: Hewlett Packard Company

20070091278 - Projector: A protector includes a projector body which has an image display unit which displays an image, a member to be projected onto which an image emitted from the image display unit is to be projected, and a connecting part capable of holding the member to be projected and the projector... Agent: Oliff & Berridge, PLC

20070091279 - Projection display apparatus and method of preventing inadvertent input: A projection display apparatus and method of preventing from inadvertently inputting command thereof are provided for preventing users from inadvertently inputting the command to shut down a discharge lamp of the projection display apparatus. The method comprises the following steps: preparing to enter a determination mode when a projection display... Agent: Douglas J. Christensen Patterson, Thuente, Skaar & Christensen, P.A.

20070091280 - Signal transmission method, signal transmission device, and liquid crystal projector: A signal transmission method for transmitting a signal between a regulated power supply unit that operates and controls a high intensity discharge lamp and a setting unit that gives various kinds of commands to the regulated power supply unit is provided. The method includes providing the regulated power supply unit... Agent: Bell, Boyd & Lloyd, LLP

20070091281 - Projection light source having multiple light emitting diodes: A light source comprises a plurality of light emitting diodes arranged around the perimeter of a reflective optical element, wherein each of the light emitting diodes selectively generates a light beam directed to the reflective optical element. The reflective optical element generates a light path by collimating and reflecting the... Agent: Hewlett Packard Company

20070091282 - Lecture presentation system: A lecture presentation system includes a display screen and a projector for projecting an image onto the display screen. The display screen has image-receiving strip members linked to one another for receiving the image projected from the projector and an open space between each two adjacent strip members. Another lecture... Agent: Bacon & Thomas, PLLC

20070091283 - Projection display apparatus: A projection display apparatus and an energy recycling method thereof are provided. The projection display apparatus includes a lamp, a light-to-electricity converter and several optical elements. The light-to-electricity converter receives a reflective light beam from the optical elements and transforms light energy into electricity. By recycling the reflective light energy,... Agent: Rabin & Berdo, PC

20070091284 - Modular display system: One embodiment of a modular display system includes structure for projecting an image stored on a display media, wherein the structure for projecting an image defines a housing structured to define a repeating, uniform, structure when adjacent housings mate with and are electrically connected to one another.... Agent: Hewlett Packard Company

20070091285 - Lcos optical engine illumination system: An optical engine includes adjustable optics that provide rapid and accurate alignment to imagers. The adjustable optics include a light pipe translatable along a first direction, (2) a focusing lens translatable along second and third directions, (3) a turning mirror translatable along the first, the second, and the third directions,... Agent: Patent Law Group LLP

20070091286 - Apparatus having two functions: An apparatus having a housing and an opening is covered by a moveable panel, when the panel is in a first position, a first appliance, for example, a clock is presented. When the panel is in a second position, a second appliance, for example, a projector is presented.... Agent: Hewlett Packard Company

20070085972 - Electronically compensated lcd assembly: The invention relates to a method of electronic contrast enhancement for an LCD panel for use in an imaging device. The method comprises the step of coupling the LCD panel with a trim retarder in a pre-determined azimuthal orientation for at least partially compensating the residual in-plane retardance, followed by... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20070085971 - Illumination optical system and image projection apparatus: An illumination optical system is disclosed which capable of uniformly illuminating a surface to be illuminated. The illumination optical system comprises a polarization conversion element which converts a luminous flux from a light source into a luminous flux having a certain polarization direction, a polarization beam splitter which splits the... Agent: Morgan & Finnegan, L.L.P.

20070085970 - Image display device: An image display device includes an illumination device, and a light valve that modulates a light coming from the illumination device. In the image display device, the light valve includes an electro-optical panel configured by a pair of substrates sandwiching therebetween an electro-optical material that shows refractive index anisotropy in... Agent: Oliff & Berridge, PLC

20070085973 - Polarizing beam splitter: A polarizing beam splitter is disclosed that includes a first prism, a second prism, and a reflective polarizing film disposed between the first prism and the second prism. The first prism comprises a first polymeric material, and has a first outer curved surface and an additional outer surface. The second... Agent: 3m Innovative Properties Company

20070085974 - Projector capable of illuminating a connection interface thereof and method thereof: A projector includes a housing, a projection module installed inside the housing, a connection interface installed on the housing for connecting external devices, and an illumination module installed on the housing for illuminating the connection interface. The projector further includes a switch installed on the housing for switching on the... Agent: North America Intellectual Property Corporation

20070085975 - Light splitting system and projector incorporating the same: A light splitting system and a projector incorporating the same are provided. The light splitting system includes an illumination device, a reflective mirror, a first color splitting device and a second color splitting device. The illumination device is for generating a light. The reflective mirror is for reciprocating between a... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20070085976 - Projection device: A projection device includes a light source for providing a light beam, a light valve device installed on an optical path of the light beam, and a projection lens. The light valve device includes a light valve having an incident surface and a dust-off device. The light beam projects to... Agent: North America Intellectual Property Corporation

20070085977 - Synchronizing screen: Embodiments of synchronizing modification of an optical characteristic of a screen are disclosed.... Agent: Hewlett Packard Company

20070085978 - Illuminator and image display: An illuminator includes a laser light source that irradiates laser light, a switch element that switches over between exiting optical paths of the laser light entered, and a plurality of diffusion-illuminating elements that allow the laser light entering through the exiting optical path to exit with diffusion. The plurality of... Agent: Oliff & Berridge, PLC

20070085979 - Method and apparatus to manage light and reduce blur in microdisplay based light engines: Light is managed through the use of a light shutter. The light shutter is, for example, a variable retarder in series with a reflective linear polarizer in a polarized light beam. A comet tail effect caused by transition latencies of pixels in microdisplays of a light engine is effectively removed... Agent: Arthur Berman

20070085980 - Projection assembly: A projection assembly is provided herein for use in display systems. According to one exemplary embodiment, the projection assembly includes a multi-mirror reflective ring-field type lens assembly. According to such an exemplary embodiment, the projection assembly also includes a light modulator assembly in optical communication with the multi-mirror ring-field type... Agent: Hewlett Packard Company

20070085981 - Assemblies and methods for displaying an image: An assembly and a method for displaying at least one image in an electronic device. The assembly comprises a projector unit, which includes at least one light emitter and an image forming element, and a plane of projection. The light emitter is configured to emit light towards the image forming... Agent: Myers Bigel Sibley & Sajovec, P.A.

20070085982 - Integrator device: An integrator device is provided in the present disclosure. The integrator device may be used in a display system. According to one exemplary embodiment, the integrator device includes at least one metallic substrate. An anti-reflective layer is formed on the substrate. In addition, a band-reject layer formed is on said... Agent: Hewlett Packard Company

20070081129 - Modular beam-recombining system and beam-recombining method threof: A modular beam-recombining system includes a beam splitting/recombining module, a splitting-beam reflecting module, a polarizing beam splitter module, and an image displaying module. The beam splitting/recombining module is used to directly receive a beam from a light-emitting module, and splitting and recombining the beam. The splitting-beam reflecting module is connected... Agent: Rosenberg, Klein & Lee

20070081130 - Adjusting light intensity: Embodiments of adjusting light intensity are disclosed.... Agent: Hewlett Packard Company

20070081132 - Projector with a lens capable of shifting in two dimensions: A projector includes a housing including an opening, and a fixture installed on the opening of the housing. A slot is formed on the fixture. The projector further includes a lens-shading ring installed on the fixture in a slidable manner inside the slot, and a lens for projecting images. An... Agent: North America Intellectual Property Corporation

20070081131 - Rotatable projection lens for rear-projection applications: An optical system for a projection display device includes a first lens group having a first optic axis and a second lens group having a second optic axis, wherein the second lens group is adapted to rotate about the first optic axis. Alternatively, the optical system includes a first optic... Agent: Philips Intellectual Property & Standards

20070076171 - Wobulator position sensing system and method: A wobulator position sensing system includes a wobulator plate, having a wobulator window, and a position detector, associated with the wobulator plate. The wobulator is disposed along an image projection path, and configured to selectively tilt so as to shift the projection path. The position detector is configured to sense... Agent: Hewlett-packard Company Intellectual Property Administration

20070076172 - Projection assembly: A projection assembly is provided herein. According to one exemplary embodiment, the projection assembly includes a plurality of modulator panels in optical series, a color combiner, and at least one field lens associated with at least one of the modulator panels. Further, according to one exemplary embodiment, the field lens... Agent: Hewlett Packard Company

20070076173 - Method and prism for improving illumination efficiency in optical projection system: A method and a prism for improving illumination efficiency in an optical projection system are disclosed. Two dichroic mirrors for both red-reflecting and blue-reflecting lights are utilised for dividing illumination light in the optical projection system. Furthermore, an X-cube is also adopted as a light combining prism in the optical... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC

20070076174 - Digital video projection device: Digital video projection device comprising a light source (3) to produce an image building light beam (7), one or more lenses (4), a light valve (5) and a colour wheel (6), characterized in that means are provided for altering the relative position of the colour wheel (6) in view of... Agent: Bacon & Thomas, PLLC

20070076175 - Projection-type system and method of operating the same: An object of the invention is to provide method of operating a projection-type system, which method is capable of suppressing flicker and minimizing gradation disorder at the same time by superimposing a pulse current on a d.c. lamp current to stabilize arc while synchronizing the superimposition of the pulse current... Agent: Jordan And Hamburg LLP

20070076176 - Display system: One embodiment of a display system includes a first array that defines multiple reflective devices each movable between an inactive position to reflect light to a light dump and an active position to reflect light to an imaging region, a second array that defines multiple reflective devices each movable between... Agent: Hewlett Packard Company

20070076177 - Image projection apparatus: A projector comprising a directional light source, a lens disposed opposite the light source, and an image medium support assembly disposed between the light source and the lens along a light path that extends from the light source through the lens; a housing enclosing the directional light source, the image... Agent: Calfee Halter & Griswold, LLP