Programmable light modulator for viewing transparent film prints
US5313726A · kind A · utility
22Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1992 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Dec 1, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/026
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved apparatus for viewing transparent film prints, such as X-rays, mammograms and sonograms, is provided, which apparatus includes a light source, a viewing stage and an array of light valves to selectively prevent the transmission of light from the light source to certain areas of the viewing stage. The apparatus allows an operator to more efficiently and accurately discern detail in the analysis of transparent film prints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.