Aperture selection mechanism for camera
US5930543A · kind A · utility
2Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B9/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An aperture selection mechanism for camera lens includes an aperture strip and a disk selection knob. The aperture strip has two or more different sizes of apertures equally spaced from each other and being sequenced by size. Turning the selection knob, the aperture strip will be moved and one of the apertures will be positioned in the light path of the camera lens. Two or more apertures may be moved to the light path of camera lens one at a time so that the camera can produce better quality of photo and image. The structure is simple, low cost and easy to use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.