Turning mirror for integrating image and light indicator ray bundles
US4741608A · kind A · utility
4Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1986 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Jun 9, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrical-optical system is disclosed having a turning mirror (24) for superimposing light rays (44) of an indicator LED (40) into the primary optical path (28) of an image (18). The turning mirror (24) comprises a solid having a frontal mirrored reflective surface (78) with a pinhole (80) etched therein. Offset from the pinhole (80), and disposed on the backside of the turning mirror (24) is a cavity (86) housing an LED indicator light (40). The light rays from the LED (40) pass through the pinhole (80) in such a direction as to be colinear with the image ray bundle (28) reflected from the mirrored surface (78).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.