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Class 353/48 - Plural projectors or projection paths


Subclass of Class 353 - Optics: image projectors
Definition: Subject matter including a plurality of projectors as there
No. of patents: 26
Last issue date: 03/27/2012


NumberTitleIssue Date
8142026Projector alignment in a multiple-projector projection system
Projector alignment in a multiple-projector projection system is checked by determining a location of at least a portion of a boundary of an image field projected by at least one of the projectors and comparing the determined location of the at least the portion of ...
03/27/2012
7837333Projector
A projector projecting several images simultaneously is provided. The projector includes a main body having a first opening and a second opening, and an optical system disposed in the main body and projecting a first image through the first opening and a second imag...
11/23/2010
7343091Imaging device
To provide an imaging device that can use a single illumination device to offer a light source suitable for imaging a translucent target object, while also enabling the imaging device to be mounted on a platform such as a desk. In case of slide film imaging, ...
03/11/2008
7227532Optical projection system for computer input devices
A computer input device, such as an electronic mouse, having an optical projection system. The optical projection system is configured to project an image onto a housing wall surface, which may be on a side, top, or rear of the device. In one arrangement the optical...
06/05/2007
7187343Image projection with display-condition compensation
A method of projecting a compensated principal image may include projecting a principal image onto a surface and projecting an intended calibration image onto a calibration area of the surface. The intended calibration image may be projected when the principal image...
03/06/2007
7130119Three-dimensional observation apparatus and three-dimensional observation system
A 3-D observation apparatus and 3-D observation system, as well as another observation apparatus, are provided such that it is possible to make observations while substantially in the same posture, without glasses, of either a plurality of 3-D images, or of a 2-D im...
10/31/2006
7048384Multiple scene projection system
A projection system for presenting infrared scenes having biological and chemical agents, simulants and objects such as battlefield items. The generated scenes are primarily for the evaluation of infrared sensors, cameras and stand-off detectors. The system may have...
05/23/2006
7018047Image projection lighting device with variable homogeneity
An image projection lighting device is provided which includes a variable homogenizing system. The variable homogenizing system may homogenize light projected by a lamp across a light valve. The variable homogenizing system may vary the light across the light valve ...
03/28/2006
6956624Optical projection apparatus, transmission type screen, and projection type image display apparatus
An optical projection apparatus includes an optical lighting system provided with a polarized beam splitter for polarizing a white light flux received from a white light source and combining the white light flux with other light fluxes, thereby taking out a predeter...
10/18/2005
6869191Method and apparatus for selectively positioning dual projectors
An apparatus for selectively positioning a first projector and a second projector to project an image through a single projection aperture. The apparatus comprises a first rail system, extending longitudinally along a second axis substantially perpendicular to the f...
03/22/2005
6773113Projection arrangement for projecting an image onto a projection surface
In a projection arrangement for projecting an image onto a projection surface, there are provided a light source (26), a control unit (25), a light modulator (10), which is controllable by said control unit (25) in order to generate an im...
08/10/2004
6643069SLM-base color projection display having multiple SLM's and multiple projection lenses
An optical unit (20, 30) for color projection display system that has three SLMs (21, 31) and three projection lenses (27, 37). Each SLM (21, 31) receives light of a different primary color, which it modulates to form images for that color. Each SLM (21, ...
11/04/2003
6619801Projection type image display apparatus realizing three-dimensional image
A projection type image display apparatus includes a light source emitting light, a polarization device transmitting light polarized in one direction of incident light emitted from the light source, a reflection type image generating unit generating a col...
09/16/2003
6597410System for the automatic adaptation of projector images and a method for the implementation thereof
A computerized projector system which automatically adapts projected images emanating from projectors to fit the size and conditions of screens on which the images are displayed. Moreover, disclosed is a novel method of utilizing a computerized projector ...
07/22/2003
6508555Image projection system that enables almost complete superposition without any image shift in superposition projection of original images a plurality of image projection apparatuses
For providing the image projecting system capable of substantially superimposing images without image blur which are provided from a plurality of image projecting apparatus when the original images are superimposed using the plurality of image projecting ...
01/21/2003
6426781Laser video projector
A laser video projector for modulating light from a laser light source by an acousto-optic modulator (AOM) according to a video signal and projecting video information to a screen using a scanner is provided. The laser video projector includes a light sou...
07/30/2002
6222674Projective image display apparatus
A projective image display apparatus directed to effecting improved brightness of a displayed image for projection. The improved brightness is a consequence of harmonizing an intensity distribution of light from one or more light sources and converting li...
04/24/2001
6144476Image display device
An image display device having a scanning device for scanning light from a light source and for projecting a virtual image on a pupil of a viewer. The scanning device has a first mirror and a second mirror that scan the light in a same direction....
11/07/2000
6142653Optical pattern producing system
There is disclosed a system that produces patterns or images from a light beam by a series of reflections off of multiple mirrors, these mirrors rotated by motors. The mirrors are positioned with respect to each other and offset at a predetermined angle f...
11/07/2000
5654775Three lamp, three light valve projection system
In a three lamp, three light valve projection system, the lamps are energized sequentially in a three phase illumination cycle. The light therefrom is separated by an optical system composed of a three by three array of nine mirrors, all but one of which ...
08/05/1997
5326266Area of interest display system with opto/mechanical image combining
In an area of interest (AOI) display, a detailed image is projected on a screen at the area of interest while a background image is projected on the surrounding area such that the boarder between the two areas varies in an orbital oscillating pattern to a...
07/05/1994
4991955Circular projection and display system using segmented trapezoidal screens
A circular projection system using segmented trapezoidal screens arranged in a continuous arcuate array about a central vertical axis. The top of each screen is tilted downward. Each screen is illuminated by a projector which is mounted above and behind t...
02/12/1991
4815013Variable speed film transport interlock system and method using same
A variable speed film transport interlock control system for allowing a plurality of film audio elements to be run in synchronization with each other with at least one film element running at a different selected speed than the other elements. The system ...
03/21/1989
4595266Multiple projection optics slide projection apparatus using a circular slide tray, having fixed-position slide gates
A slide projector having two projection optics systems (12,14) for display of slides on a screen. Each projection optics system includes a fixed position slide gate (24, 36) into and from which slides move relative to a circular slide tray (16), which rot...
06/17/1986
4192584System for creating motion effects employing still projection equipment
A system for creating projected visual motion effects for filming or videotaping, with the use of still projection equipment, involves projecting a still image on a screen from a slide projector, projecting a second image on the screen, superimposed on th...
03/11/1980
4104625Apparatus for providing facial image animation
An image animation apparatus includes a rotating disk having film negatives mounted around its periphery each film negative having a different facial expression on it. By use of an associated microprocessor which responds to certain control inputs the seq...
08/01/1978
 
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