Beam projecting apparatus
US5825555A · kind A · utility
22Cited by
2References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1995 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Sep 18, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0972
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A beam projecting apparatus has a light source and a reflecting device for reflecting and rotating a bundle of light emitted from the light source for forming a reference plane. A shape converting optical system is provided in an optical path from the light source to the reflecting device for converting the bundle of light from an elliptical sectional shape to a circular sectional shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.