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Class Information
Number: 359/887
Name: Optical: systems and elements > Absorption filter > Sequentially additive
Description: Subject matter comprising two or more surfaces of different selectivity which are intended to sequentially affect a sensing element (which may be the human eye) at such a rate that their effects are combined in an optically additive way.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6687063 |
Optical system for creating colored fields of light and components therefor |
Feb. 3, 2004 |
| 6644815 |
Total reflection prism and projector with the same |
Nov. 11, 2003 |
| 6639723 |
Variable optical attenuator with polarization compensation |
Oct. 28, 2003 |
| 6614606 |
Methods and apparatus for providing color images from monochromatic night vision and other electro-optical viewing devices |
Sep. 2, 2003 |
| 6515811 |
Optical filter having two absorption maximums |
Feb. 4, 2003 |
| 6278563 |
Scrolling color changer |
Aug. 21, 2001 |
| 6252730 |
Mirror mounting assembly for hair grooming and styling |
Jun. 26, 2001 |
| 6028724 |
Absorbent laser resistant structure |
Feb. 22, 2000 |
| 6021008 |
Beam scattering laser resistant structure |
Feb. 1, 2000 |
| 6016232 |
Heat conducting laser resistant structures |
Jan. 18, 2000 |
| 6014274 |
Partially ablating laser resistant structures |
Jan. 11, 2000 |
| 5790329 |
Color changing device for illumination purposes |
Aug. 4, 1998 |
| 5617250 |
Radiation projection arrangement with integrated radiation indicator |
Apr. 1, 1997 |
| 5587847 |
Laser protection window using holographic optical element and channel plates |
Dec. 24, 1996 |
| 5570240 |
Transflective colour filter, and a method of manufacturing such a filter |
Oct. 29, 1996 |
| 5541779 |
Optical imaging system |
Jul. 30, 1996 |
| 5510928 |
Multiple pass optical filter |
Apr. 23, 1996 |
| 5457578 |
Color filter transmission apparatus |
Oct. 10, 1995 |
| 5246803 |
Patterned dichroic filters for solid state electronic image sensors |
Sep. 21, 1993 |
| 5018833 |
Neutral density filters |
May. 28, 1991 |
| 4752122 |
Apodizing filter and its applications |
Jun. 21, 1988 |
| 4669811 |
Optical filtering apparatus |
Jun. 2, 1987 |
| 4617094 |
Method of manufacturing solid state color filter device uses co-electrodeposition |
Oct. 14, 1986 |
| 4508448 |
Apparatus for measuring the distance to a point on the inner wall of a hot furnace |
Apr. 2, 1985 |
| 4501470 |
Christiansen-Bragg optical filter |
Feb. 26, 1985 |
| 4459014 |
Subtractive filter for the printing of color photographic film |
Jul. 10, 1984 |
| 4247177 |
3D Multichrome filters for spectacle frames |
Jan. 27, 1981 |
| 4227802 |
Apparatus for measuring the distance to a point on the inner wall of a hot furnace |
Oct. 14, 1980 |
| 4099883 |
Sulfur detecting apparatus comprising holmium, and erbium filters |
Jul. 11, 1978 |
| 3982825 |
Color filter head for photographic enlargers |
Sep. 28, 1976 |
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