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Class Information
Number: 348/782
Name: Television > Video display > Projection device > Cathode-ray tube image source > With optical element > Mirror arrangement
Description: Subject matter wherein the optical function is derived from an optical reflecting structure.

Sub-classes under this class:

Class Number Class Name Patents
348/783 Concave mirror 12

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8511837 Projection optical system and image projector Aug. 20, 2013
8167437 Multi-positional smoothing mirror for video projection optics May. 1, 2012
7946713 Display apparatus May. 24, 2011
7920213 Method for maintaining the phase difference of a positioning mirror as a constant with respect to a high speed resonant mirror to generate high quality images Apr. 5, 2011
7914160 Projection television Mar. 29, 2011
7841728 Image display apparatus Nov. 30, 2010
7789516 Projection type image display device Sep. 7, 2010
7503661 Projection optical system Mar. 17, 2009
7499111 Projection type display device and back projection type display device using the same Mar. 3, 2009
7483086 Illumination optical system, projection video system using the same, and integral-type video display Jan. 27, 2009
7452085 Dynamically adjustable fold-mirror assembly for projection device Nov. 18, 2008
7304690 Optical engine of a projection television Dec. 4, 2007
7212254 Illumination optical system, projection video system using the same, and integral-type video display May. 1, 2007
7196687 Swept illumination to reduce LCD lag in front and rear projection displays Mar. 27, 2007
7061538 Image-information converting apparatus and method, image displaying apparatus and method, coefficient calculating apparatus and method, coefficient-data storing apparatus, apparatus and method Jun. 13, 2006
7006163 Illuminating device and projector using it and built-in display unit Feb. 28, 2006
6994438 Optical component casing, optical device and projector Feb. 7, 2006
6943933 MEM devices having charge induced via focused beam to enter different states Sep. 13, 2005
6921174 Projection television cabinet having a one-piece reference structure Jul. 26, 2005
6870580 Illumination optical system having a mirror with a curved surface having rotational symmetry about a predetermined axis Mar. 22, 2005
6859239 Projection system with folded optical path Feb. 22, 2005
RE38488 Optical system including a reflecting polarizer for a rear projection picture display apparatus Apr. 6, 2004
6678015 Color separating/synthesizing apparatus Jan. 13, 2004
6275272 Projection television receiver Aug. 14, 2001
6233024 Rear projector May. 15, 2001
6175392 Method and apparatus for improving the color convergence of projection-based displays Jan. 16, 2001
6067127 Method and apparatus for reducing the rotation rate of mirrors in a high resolution digital projection display May. 23, 2000
6038058 Grid-actuated charge controlled mirror and method of addressing the same Mar. 14, 2000
6028696 Charge controlled mirror with improved frame time utilization and method of addressing the same Feb. 22, 2000
5896236 Metallized plastic film mirror for projection television receiver Apr. 20, 1999
5883614 Reflection type display utilizing charge coupled devices Mar. 16, 1999
5760931 Image display unit Jun. 2, 1998
5557343 Optical system including a reflecting polarizer for a rear projection picture display apparatus Sep. 17, 1996
5485226 Hood assembly for a video display unit Jan. 16, 1996
5418579 Multiplanar image display system with plural display units May. 23, 1995
5408282 Projection system for projection TV set Apr. 18, 1995
5398082 Scanned illumination for light valve video projectors Mar. 14, 1995
5363149 Projection television set Nov. 8, 1994
5301030 Optical illumination apparatus for a display unit with efficient light source polarization Apr. 5, 1994
5181122 Display device for displaying a wide picture Jan. 19, 1993
5173781 Overhead television Dec. 22, 1992
5123728 Rear screen video projection system for aircraft passenger entertainment Jun. 23, 1992
5040058 Raster graphic helmet mountable display Aug. 13, 1991
4918535 Television projection system Apr. 17, 1990
4760443 Display means Jul. 26, 1988
4737843 Color image display system for producing and combining four color component images each inverted in at least one aspect relative to the other images Apr. 12, 1988
4709261 Color image display system for producing and combining two similarly-oriented color component images and an inverted color component image Nov. 24, 1987
4647166 Screen extension linkage for a video real-screen projection apparatus Mar. 3, 1987
4578710 Lens system for projection television Mar. 25, 1986
4556913 Apparatus for preventing virtual images in projection television receivers Dec. 3, 1985

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