D-shape laser beam projector
US5629808A · kind A · utility
19Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1995 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Dec 15, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/095
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical lens is useful as a D-shape laser beam projector. The lens consists of a known linear diverging element enabling the expansion of a laser beam into an uniform line, and a matching section of an axicon, either a symmetrical half-axicon or a non-symmetrical one, cut in a plane passing through, or nearly through, its apex. The two components, joined together in a plane of cutting of the axicon section, are positioned in a laser beam such that the beam is incident on both apices of the linear diverging element and the axicon section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.