Camera with an automatic focusing device
US4777504A · kind A · utility
8Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1988 |
| Grant date | Oct 11, 1988 |
| Priority date | — |
| Expiry date | Oct 11, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/36
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera provided with an automatic focusing device which automatically detects the focus condition of an objective lens and driving the objective lens towards an in-focus position in response to the manual operation to a shutter release button. The operation of the automatic focusing device is actuated by a switching means when the shutter release button is touched by a user's finger or is depressed down after the touching. When the shutter release button is further depressed beyond the first stroke, the operation of the automatic focusing device is inhibited once an in-focus condition is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.