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Class Information
Number: 348/781
Name: Television > Video display > Projection device > Cathode-ray tube image source > With optical element
Description: Subject matter including a structure which performs a basic optical function (i.e., the structure when exposed to or placed in the path of a group of light rays will cause a deviation, a blocking of the rays, or a modification in a character or a property of the light).
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7400458 |
Imaging optics with wavelength dependent aperture stop |
Jul. 15, 2008 |
| 7324169 |
Projection optical system, projection television, and method of manufacturing lens included in projection optical system |
Jan. 29, 2008 |
| 7277090 |
Method and apparatus for image and video display |
Oct. 2, 2007 |
| 7196687 |
Swept illumination to reduce LCD lag in front and rear projection displays |
Mar. 27, 2007 |
| 7157844 |
Cathode ray tube provided with a faceplate having a convex outer surface and a lens assembly attached therein |
Jan. 2, 2007 |
| 7154567 |
Projection lens regulator for rear projection television |
Dec. 26, 2006 |
| 7142257 |
Laser projection system |
Nov. 28, 2006 |
| 7133084 |
Lens systems for projection televisions |
Nov. 7, 2006 |
| 7081928 |
Optical system for full color, video projector using single light valve with plural sub-pixel reflectors |
Jul. 25, 2006 |
| 7019793 |
Lens systems for projection televisions |
Mar. 28, 2006 |
| 6987546 |
Projection type image display apparatus |
Jan. 17, 2006 |
| 6943850 |
Optical apparatus and projection type display apparatus for reducing a physical distance between a light source and a display |
Sep. 13, 2005 |
| 6870580 |
Illumination optical system having a mirror with a curved surface having rotational symmetry about a predetermined axis |
Mar. 22, 2005 |
| 6791629 |
Lens systems for projection televisions |
Sep. 14, 2004 |
| 6784946 |
Assembly, in which light from a light source is directed onto a surface |
Aug. 31, 2004 |
| RE38488 |
Optical system including a reflecting polarizer for a rear projection picture display apparatus |
Apr. 6, 2004 |
| 6621530 |
Projection televisions with mirrors incident on holographic screens |
Sep. 16, 2003 |
| 6580471 |
Projecting images |
Jun. 17, 2003 |
| 6580469 |
Projection device |
Jun. 17, 2003 |
| 6556256 |
Projector and prism used therein |
Apr. 29, 2003 |
| 6509937 |
High performance projection television lens systems |
Jan. 21, 2003 |
| 6501517 |
Optical system in projection television receiver |
Dec. 31, 2002 |
| 6491400 |
Correcting for keystone distortion in a digital image displayed by a digital projector |
Dec. 10, 2002 |
| 6437914 |
Projection televisions with holographic screens having center to edge variations |
Aug. 20, 2002 |
| 6417967 |
System and method for efficient illumination in color projection displays |
Jul. 9, 2002 |
| 6339454 |
Projecting images |
Jan. 15, 2002 |
| 6317171 |
Rear-screen projection television with spatial light modulator and positionable anamorphic lens |
Nov. 13, 2001 |
| 6301056 |
High speed retrofocus projection television lens systems |
Oct. 9, 2001 |
| 6297860 |
Partial color-corrected projection lens system |
Oct. 2, 2001 |
| 6276802 |
Rear projection display |
Aug. 21, 2001 |
| 6275272 |
Projection television receiver |
Aug. 14, 2001 |
| 6246446 |
Auto focus system for a SLM based image display system |
Jun. 12, 2001 |
| 6181386 |
Projecting images |
Jan. 30, 2001 |
| 6038058 |
Grid-actuated charge controlled mirror and method of addressing the same |
Mar. 14, 2000 |
| 5977727 |
Electron beam profile and energy shaping lens |
Nov. 2, 1999 |
| 5946142 |
Projection lens system and projection image display apparatus using the same |
Aug. 31, 1999 |
| 5910826 |
Rear projection screen and method of producing same |
Jun. 8, 1999 |
| 5883614 |
Reflection type display utilizing charge coupled devices |
Mar. 16, 1999 |
| 5764312 |
Projector apparatus |
Jun. 9, 1998 |
| 5677071 |
Fluorescent film structure of color Braun tube |
Oct. 14, 1997 |
| 5607216 |
Projection display apparatus |
Mar. 4, 1997 |
| 5585867 |
Projection tube and its application in a video projection system |
Dec. 17, 1996 |
| 5557343 |
Optical system including a reflecting polarizer for a rear projection picture display apparatus |
Sep. 17, 1996 |
| 5534951 |
Optical assembly for television front screen |
Jul. 9, 1996 |
| 5428467 |
Transmissive polygonal optical scanning of illumination for light valve video projector |
Jun. 27, 1995 |
| 5422692 |
Image projection system |
Jun. 6, 1995 |
| 5422683 |
Image display and pick-up apparatus |
Jun. 6, 1995 |
| 5412437 |
Projection type display device |
May. 2, 1995 |
| 5398082 |
Scanned illumination for light valve video projectors |
Mar. 14, 1995 |
| 5363148 |
CRT display set and optical device having means for accurately positioning the CRT |
Nov. 8, 1994 |
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