Diffractive optical element for collimating and redistributing Gaussian input beam
US5148317A · kind A · utility
22Cited by
12References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Jun 24, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H1/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element for producing a collimated output beam having a uniform intensity profile from a highly divergent input beam having a Gaussian intensity profile, the optical element consisting of a single convex-plano lens having a diffractive element etched into the plano side of the single lens in accordance with binary optics technology, the diffraction element being configured to complete collimation of the input beam directed at the convex side of the single lens while at the same time redistributing the input beam to produce a uniform intensity output beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.