Optical control assembly for a color design viewer
US4003634A · kind A · utility
4Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1974 |
| Grant date | Jan 18, 1977 |
| Priority date | — |
| Expiry date | Aug 12, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/4244
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical apparatus using a single source of white light has five independent channels each of which divides that light into three spectral components, and supplies those components individually through individual attenuators for use as a set of fifteen separate and independently-controllable light sources. Fiber optics light conductors bring light from those sources to a transform filter in a Fourier transform optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.