Zoom finder for a camera
US5884106A · kind A · utility
6Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Nov 18, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B13/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a finder, a movable lens is supported by a shaft and a guide plate respectively at both side edge portions thereof so as to keep a balance. The movable lens is moved accurately and smoothly. Also, the guide plate for supporting the side edge portion of the movable lens is separated from the frame. Accordingly, the movement of the movable lens can be smoothed when the machining accuracy of the guide plate is enhanced alone so as to support the movable lens at an accurate position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.