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Match Document Document Title
7599011 Method for synchronizing an image data source and a resonant mirror system to generate images  
System and method for synchronizing the low speed mirror movement of a mirror display system with incoming frame or video signals, and synchronizing buffered lines of video data to the...
7400458 Imaging optics with wavelength dependent aperture stop  
An imaging system includes a wavelength dependent aperture stop, which transmits light with different ranges of wavelengths through apertures of different diameters. Thus, different colored light...
7324169 Projection optical system, projection television, and method of manufacturing lens included in projection optical system  
Provided are a projection optical system, a projection television, and a method of manufacturing a lens included in the projection optical system. The projection optical system includes lenses for...
7277090 Method and apparatus for image and video display  
The present invention relates to a display configured to display images that includes multiple display elements capable of controlling light within a visible-light spectrum. The display elements...
7196687 Swept illumination to reduce LCD lag in front and rear projection displays  
Methods for illuminating the display area of a liquid crystal panel ( 13 ) are provided. Illumination light ( 17 ) is compressed into a stripe which is scanned across the display area in...
7157844 Cathode ray tube provided with a faceplate having a convex outer surface and a lens assembly attached therein  
In a projection cathode ray tube device in which a projection cathode ray tube and a projection lens assembly are coupled and held by a coupler, superior focus characteristics and high resolution...
7154567 Projection lens regulator for rear projection television  
A projection lens regulator for a projection television includes a base, a barrel and an immobilizing hoop. The base has an annular wall, a slope guide slot at the annular wall, and a resilient...
7142257 Laser projection system  
Laser projection system suitable for commercial motion picture theaters and other large screen venues, including home theater, uses optical fibers to project modulated laser beams for...
7133084 Lens systems for projection televisions  
Projection lens systems for use with cathode ray tube (CRT) projection televisions are provided which have positive first lens units (U 1 ) and negative second lens units (U 2 ) where the negative...
7081928 Optical system for full color, video projector using single light valve with plural sub-pixel reflectors  
A full color video projector system using a light source and a single light valve. The output of the light source passes through a condenser lens. The lens is directed toward a splayed array of...
7019793 Lens systems for projection televisions  
Projection lens systems for use with cathode ray tube (CRT) projection televisions are provided which have positive first lens units (U 1 ) and negative second lens units (U 2 ) where the negative...
6943850 Optical apparatus and projection type display apparatus for reducing a physical distance between a light source and a display  
An optical apparatus for irradiating light emitted from a light source onto a predetermined object, comprising a polarized light separating optical element for passing a first of two linearly...
6870580 Illumination optical system having a mirror with a curved surface having rotational symmetry about a predetermined axis  
A projection type image display apparatus comprises a light source unit; an integrator unit for mixing luminous fluxes emitted from the light source unit so as to homogenize their light quantity...
6791629 Lens systems for projection televisions  
Projection lens systems for use with cathode ray tube (CRT) projection televisions are provided which have positive first lens units (U 1 ) and negative second lens units (U 2 ) where the negative...
6784946 Assembly, in which light from a light source is directed onto a surface  
An arrangement in which the light emitted by a source of light ( 44 ) is directed by means of illumination optics ( 12 ) onto a surface ( 25 ) by which an image can be generated that can be...
RE38488 Optical system including a reflecting polarizer for a rear projection picture display apparatus  
An optical system for a rear projection picture display has reduced size while maintaining screen size. Two plane mirrors are provided along a light path between a picture display unit and a...
6621530 Projection televisions with mirrors incident on holographic screens  
A projection television has a screen with a three dimensional hologram on a film substrate for collecting light over a range of incident angles and redirecting the light more nearly forward....
6580471 Projecting images  
An “extra-folded” projection display system includes a selectively reflective material (e.g., a linear reflecting polarizer) placed immediately behind the system's imaging screen. The display...
6580469 Projection device  
In a projection device with a matrix ( 50 ) located in an image plane for generating a video image, with optics ( 9 ) for projection of this video image on a screen and with a light source ( 3, 30...
6556256 Projector and prism used therein  
A projector of the type which uses an optical modulator that modulates light by controlling the emitting direction of light applied to a light illumination surface in accordance with image...
6509937 High performance projection television lens systems  
Projection lens systems for use in CRT projection televisions are provided. The lens systems include a negative lens unit (U 4 ) which is associated with the CRT during use of the lens system and...
6501517 Optical system in projection television receiver  
An optical system in a projection television receiver includes: a screen for simultaneously displaying R (Red), G (Green) and B (Blue) images thereon; and a light source part comprising R, G and B...
6491400 Correcting for keystone distortion in a digital image displayed by a digital projector  
A method for correcting for keystone distortion and reducing aliasing defects in a digital image for use by a digital image projector, includes the steps of receiving an original digital image;...
6437914 Projection televisions with holographic screens having center to edge variations  
An East-West switching transistor is coupled between a flyback transformer primary winding and a horizontal deflection output transistor circuit to control retrace energy to obtain an East-West...
6317171 Rear-screen projection television with spatial light modulator and positionable anamorphic lens  
A television receiver (10) that has a spatial light modulator (15) and a projection lens (17a) and that projects images to a screen (18). If the aspect ratio of the image to be displayed does not...
6301056 High speed retrofocus projection television lens systems  
Projection lens systems (13) for use in CRT projection televisions (10) are provided. From the screen side, the systems have three lens units (U1, U2, U3), the first two units (U1, U2) forming a...
6297860 Partial color-corrected projection lens system  
Projection lens systems (13) for use in projection televisions are provided. The systems are characterized by a screen side lens unit (U1) which: (1) has a weak optical power; (2) has a negative,...
6276802 Rear projection display  
Methods and apparatus for using more effectively the front side area of a rear projection display as a screen positioning area disclosed. Almost all of the p-polarized light beams emitted from an...
6275272 Projection television receiver  
A projection television receiver for embodying a high definition and high quality projection television receiver by processing an image of an image source. A red, a green and a blue image are...
6246446 Auto focus system for a SLM based image display system  
An image display system (10) having an auto-focus system (24). An image sensor (20) such as a CCD camera, senses the sharpness of pixels (26) comprising a portion of the image at a screen (16),...
6038058 Grid-actuated charge controlled mirror and method of addressing the same  
A micromirror light valve target configuration that overcomes the problems of limited deflection range, electrostatic and resolution by forming the secondary electron collector grid of a fine...
5977727 Electron beam profile and energy shaping lens  
An apparatus and method to dynamically shape the projected energy profile of an electron beam and the energy distribution of an electron beam of a cathode ray tube to provide a single cathode ray...
5910826 Rear projection screen and method of producing same  
The present invention relates to a rear projection screen used in projection type television sets and the like. A rear projection screen according to the present invention is characterized in that...
5883614 Reflection type display utilizing charge coupled devices  
A reflection type display device wherein the brightness of pixels is controlled by deflecting a reflecting surface corresponding to a pixel in the reflection type display device for a time...
5764312 Projector apparatus  
A projector apparatus which assures easier fine and rough adjustment of a swing and tilt angle, includes inclination rings which are formed symmetrically with respect to the center line of the...
5677071 Fluorescent film structure of color Braun tube  
The present invention is to improve color purity and brightness of a color Braun tube by constructing a fluorescent film for a red fluorescent material as a laminated structure. The present...
5607216 Projection display apparatus  
A projection display apparatus comprises an image source having a rectangular image-displaying surface; a projecting lens assembly for magnifying and projecting the image onto a screen; and...
5585867 Projection tube and its application in a video projection system  
A projection tube featuring good accuracy in controlling a slant angle between a cathode ray tube and a projection lens, an excellent focusing performance, and further low production cost, and also...
5534951 Optical assembly for television front screen  
An optical assembly device (10) for use in front of a television screen having a diagonal dimension of S, which optical assembly comprises four panels (12 to 15) connected together to form a hollow...
5428467 Transmissive polygonal optical scanning of illumination for light valve video projector  
A projection system employs a reflective light valve (10) that is optically addressed by an image from a cathode ray tube (12) and provides an output image for projection by means of a high...
5422692 Image projection system  
An image projection system for projecting an image obtained on an image field onto a screen through a projection lens comprises a plurality of spacers overlaid with each other and arranged between...
5422683 Image display and pick-up apparatus  
An image pick-up and projection apparatus comprising a projection unit (14), a pick-up unit (11) and a projection screen (9) switchable between a transmissive state and a diffusing state. By...
5412437 Projection type display device  
A projection type display device including a CRT with a fluorescent layer and a face glass for projecting an image reflected onto the fluorescent layer through the face glass, a transparent liquid,...
5398082 Scanned illumination for light valve video projectors  
A video projection system employs a reflective light valve (10) that is optically addressed by an image from a cathode ray tube (12) and provides an output image for projection by means of a high...
5363148 CRT display set and optical device having means for accurately positioning the CRT  
The disclosure relates to display sets wherein the image produced by a cathode-ray tube is displayed on a display screen by means of an optical device. It relates more particularly to means for...
5353070 Lens holder which reduces internal reflections  
In a lens-barrel etc. for holding lenses, a thin film composed of a fluororesin compound having a refractive index lower than that of a material constituting the lens-barrel is formed on an inner...
5337093 Projection television system including a plurality of display elements with corresponding optical axes incident to a screen at different points offset from the screen center  
In a projection television system having display elements displaying images of respective colors, a screen on which a color image is formed by magnifying and synthesizing the images of the...
5329363 Projection lens systems having reduced spherochromatism  
A projection lens system for projecting an image from a cathode ray tube (CRT) onto a screen is provided. The spherochromatic aberration of the system is reduced through the use of a first lens...
5309283 Hybrid, color-corrected, projection TV lens system  
A projection lens system for projecting an image from a cathode ray tube (CRT) onto a screen is provided which includes in order from the image end: a first lens unit (U1), a second positive lens...
5291297 Illustion creating apparatus comprising a housing and a CRT  
An apparatus for creating an illusion in which a setting is superimposed around a real image rather a reflected image being superimposed into the middle of the setting as is traditionally the case....
Matches 1 - 50 out of 86 1 2 >