Shaped illumination geometry and intensity using a diffractive optical element
US6744502B2 · kind B2 · utility
45Cited by
44References
68Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2001 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Mar 18, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus to illuminate a target. The apparatus can comprise a first lens configured to receive light from the light source, a diffractive optical element configured to receive the light from the first lens and to regulate the light into regulated light, and second lens configured to receive the regulated light and to direct the regulated light to a selected area of the target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.