Stray light cutting structure for optical device
US6707838B2 · kind B2 · utility
8Cited by
14References
75Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2002 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | May 24, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A stray light cutting structure for an optical device provided with an optical component through which a predetermined light beam travels in parallel to the optical axis of the optical device is provided. The structure is for cutting stray light, which travels at an angle to the optical axis of the optical device to enter the optical component through one end face thereof, and includes at least one notch formed on one side face of the optical component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.