Color laser display employing excitation solid laser unit, fiber laser unit, or semi conductor laser unit
US6764183B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2001 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Mar 14, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed herein is a color laser display that comprises a red laser light source for emitting red laser light, a green laser light source for emitting green laser light, and a blue laser light source for emitting blue laser light. An excitation solid laser unit (which has a solid-state laser crystal doped with Pr3+ and a GaN semiconductor laser element for exciting the solid-state laser crystal), a fiber laser unit (which has a fiber with a Pr3+-doped core and a GaN semiconductor laser element for exciting the fiber), or a semiconductor laser unit (which has a semiconductor laser element, employing a GaN semiconductor, and a surface-emitting semiconductor element), is employed as at least one of the red laser light source, the green laser light source, or the blue laser light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.