Printed circuit board waveguide
US6370291B1 · kind B1 · utility
20Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 11, 1999 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Mar 11, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/0274
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A printed circuit board is made of a light transmitting material and is used as a waveguide for light. The board may be coated on both surfaces with a light-reflecting material to improve waveguiding properties. Such a board is operative to replace the microlens and optical fiber common in laser diode packages to form an optical path to deliver optical energy to some sensor position. A sensor of optical energy need only be coupled to a window in one of the coatings or positioned at the edge of the board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.