Finder housing
US7020392B2 · kind B2 · utility
0Cited by
7References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 22, 2004 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Aug 17, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B13/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An objective that is a concave lens and an ocular that is a convex lens are arranged in a finder housing with a predetermined space between them. The finder housing is molded of a black plastic material. A diaphragm portion is integrally formed inside an inner peripheral portion of the finder housing and between the objective and the ocular. The diaphragm portion is formed to be as large as a lens portion of the ocular. The diaphragm portion serves to block unwanted reflected light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.