Camera with lens protection barrier member opened/closed with uniform force
US5602607A · kind A · utility
17Cited by
1References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/002
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera has a lens protection barrier member and an opening/closing mechanism that includes a cam and a spring member, the force of which varies. The cam is designed so as to compensate for the variation of spring force and maintain a uniform operating load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.