![基于发光屏幕的激光投影系统](/CN/2006/8/7/images/200680036801.jpg)
基本信息:
- 专利标题: 基于发光屏幕的激光投影系统
- 专利标题(英):Laser projection system based on a luminescent screen
- 申请号:CN200680036801.7 申请日:2006-09-26
- 公开(公告)号:CN101278232A 公开(公告)日:2008-10-01
- 发明人: U·韦克曼 , P·斯米特 , G·休斯勒
- 申请人: 皇家飞利浦电子股份有限公司
- 申请人地址: 荷兰艾恩德霍芬
- 专利权人: 皇家飞利浦电子股份有限公司
- 当前专利权人: 皇家飞利浦有限公司
- 当前专利权人地址: 荷兰艾恩德霍芬
- 代理机构: 中国专利代理(香港)有限公司
- 代理人: 李静岚; 刘红
- 优先权: 05109191.6 2005.10.04 EP
- 国际申请: PCT/IB2006/053492 2006.09.26
- 国际公布: WO2007/039850 EN 2007.04.12
- 进入国家日期: 2008-04-03
- 主分类号: G03B21/60
- IPC分类号: G03B21/60 ; G02F1/13
The present invention relates to a laser projection system consisting of at least one first laser light source (1), a projection screen (7) and a spatial light modulator (6) for projecting a laser beam of said laser light source (1) to form an image on said projection screen (7). The projection screen (7) comprises a luminescent layer (9) which upon excitation by said laser beam emits blue light. To this end, the luminescent layer (9) contains MSi6-aAlaN8-aOx+a:Eu<2+> (with M = Sr, Ba, Ca; 0 = x = 1; 0 = a = 1) as a luminescent material. With this material laser light of a laser diode emitting in the wavelength region of 405 nm can be converted to blue light of 450 nm with high efficiency. The proposed projection system, therefore, is suitable for RGB projection using laser diodes as laser light sources.
公开/授权文献:
- CN101278232B 基于发光屏幕的激光投影系统 公开/授权日:2010-05-26
IPC结构图谱:
G | 物理 |
--G03 | 摄影术;电影术;利用了光波以外其他波的类似技术;电记录术;全息摄影术 |
----G03B | 摄影、放映或观看用的装置或设备;利用了光波以外其他波的类似技术的装置或设备;以及有关的附件 |
------G03B21/00 | 放映机或放映式看片机;有关附件 |
--------G03B21/14 | .零部件 |
----------G03B21/56 | ..放映屏幕 |
------------G03B21/60 | ...以表面特性为特征的,例如,双凸透镜状的,流体的 |