公开(公告)号：US20020110320A1

公开(公告)日：2002-08-15

申请号：US09782387

申请日：2001-02-12

Applicant: Silicon Light Machines

Inventor： Clinton Carlisle ,  Jahja Trisnadi

IPC: G02B006/32

CPC classification number: G02B6/4298 ,  G02B6/4206 ,  H04N5/74 ,  H04N5/7416

Abstract: The present invention is directed to illuminating a one-dimensional spatial light modulator using an illumination system employing multiple light sources. The illumination system comprises a parallel array of light sources which provides a plurality of light outputs to an optical train. The optical train effectively combines the light sources into a single light source. The single light source provides a single light output for uniformly illuminating the spatial light modulator. The optical train includes a first optical train for receiving the light outputs from each light source, magnifying each light output, and overlaying each of the light outputs to form a single real magnified image. A mode conversion lens receives the single real magnified image, converts a mode profile of the single real magnified image into a top hat mode profile, and outputs a diverging light beam with a top hat mode profile. A second optical train shapes the light beam into an appropriate spatial geometry in such a manner that the light beam effectively illuminates the entire spatial light modulator, and directs the light beam onto the spatial light modulator.

Abstract translation: 本发明涉及使用采用多个光源的照明系统来照射一维空间光调制器。 该照明系统包括一个平行的光源阵列，它向光学列车提供多个光输出。 光学列车将光源有效地组合成单个光源。 单个光源提供用于均匀照明空间光调制器的单个光输出。 光学列车包括用于接收来自每个光源的光输出的第一光学列，放大每个光输出，并覆盖每个光输出以形成单个实际放大图像。 模式转换镜头接收单个实际放大图像，将单个实际放大图像的模式轮廓转换为顶帽模式轮廓，并输出具有顶帽模式轮廓的发散光束。 第二光学系列将光束形成适当的空间几何形状，使得光束有效地照射整个空间光调制器，并将光束引导到空间光调制器上。