Optical element, scanning optical system having the same, and image forming apparatus
US6927917B2 · kind B2 · utility
13Cited by
5References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 2002 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Jul 10, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/124
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The optical element has a microstructure lattice formed on at least one optical surface. In the optical element, the microstructure lattice is formed from an arrangement for adjusting a change in an amount of light transmitted which is caused as an incidence angle of a light beam changes from a central portion to a peripheral portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.