Zoom lens mount assembly
US5037187A · kind A · utility
51Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1989 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Jul 14, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A zoom lens mount assembly in which a zooming cam frame is moved along the optical axis while rotating therearound and respective movable frames supporting an optical system are driven by such rotation and movement of the cam frame to effect a desired zooming. In another aspect there is provided a focussing cam frame adapted to be moved along the optical axis and to drive a movable frame provided with a focussing optical system and a program lens shutter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.