Rotary shutter
US5539488A · kind A · utility
5Cited by
10References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1995 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | Mar 16, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/70
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A rotary shutter for controlling an optical path and including a rotating disk having an opening. A sensor monitor is representative of disk rotation, while a blocking element is selectively positioned within and without the optical path dependent upon the angular position of the disk and the desire to expose the light sensitive medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.