公开(公告)号：US20140253882A1

公开(公告)日：2014-09-11

申请号：US14155009

申请日：2014-01-14

Applicant: Texas Instruments Incorporated

Inventor： Philip Scott King ,  Gregory Scott Pettitt ,  Sajjad Ali Khan

IPC: G02B26/00

CPC classification number: G02B26/008 ,  G03B21/204 ,  H04N9/3114 ,  H04N9/3158 ,  H04N9/3161

Abstract: Apparatus and methods are disclosed for generating blue color illumination for use in a projection system. Light from a blue laser light source is reflected off a dichroic filter sequentially onto different color emitting phosphor coated light non-transmissive segments and onto a cyan color emitting phosphor coated light transmissive segment of a rotating color wheel. The different color light and cyan color light emitted by the phosphor back to the filter is selectively transmitted by the filter along a projection path. Blue laser light and cyan color light emitted by the phosphor transmitted through the color wheel is directed along a wraparound optical path back to the filter for reflection along the projection optical path.

Abstract translation: 公开了用于产生投影系统中使用的蓝色照明的装置和方法。 来自蓝色激光源的光从二向色滤光器顺序地反射到不同颜色的发光荧光体涂覆的光非透射段上并转移到旋转色轮的青色发光磷光体涂覆的光透射段上。 由荧光体发射到滤光器的不同颜色的光和青色的颜色光沿着投影路径被滤光器选择性地透过。 通过色轮传播的荧光体发出的蓝色激光和青色色光沿着环绕光路被引导回到滤光器，以沿投影光路反射。