Optical element
US5301060A · kind A · utility
14Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1990 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | Nov 28, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A mirror which is incorporated in an optical device and is made of plastic, comprising: an effective portion which has a constant thickness and a reflecting surface; and a reinforcing portion which is so provided as to enclose the effective portion and reinforces the effective portion from a periphery of the effective portion; the reinforcing portion being formed integrally with the effective portion; the reinforcing portion having a thickness equal to the thickness of the effective portion; the reinforcing portion having a constant width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.