Synchronized filter device
US5331361A · kind A · utility
5Cited by
18References
11Claims
0Family size
Inventor
Key dates
| Filing date | Jul 15, 1992 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Jul 15, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2215/0557
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A synchronized filter mechanism is intended for a use with a camera, which has a flash synchronizer, and plural stroboscopic light sources. The filter mechanism includes a filter holder, which holds plural filters in optical alignment with the camera, a subject and the light sources. The filters may be selected to have differing optical properties. A drive mechanism is provided for driving the filter holder. A control circuit is provided for controlling the drive motor and for triggering the light sources at predetermined times relative the optical alignment of the camera, the filters and the light sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.