公开(公告)号：US20070080285A1

公开(公告)日：2007-04-12

申请号：US11517928

申请日：2006-09-08

Applicant: Dov Lavi

Inventor： Dov Lavi

IPC: H01L31/00

CPC classification number: H01L31/02024 ,  H01L27/144 ,  H01L31/02161 ,  H01L31/0232

Abstract: The invention relates to a four-quadrant detector based optical system for detecting and tracking an optical spot, which comprises: (a) a four quadrant detector, which comprises four surfaces that are sensitive to light, said surfaces being separated one from the others by a dead zone surface which is non-sensitive to light radiation; (b) optics between said detector and the scenery, for acquiring an image of a light spot at the scenery, and for impinging the image of the same on said surfaces of the decoder; and (c) a refraction element between said detector and the other optics, which comprises grooves for diverting only the light rays coming from the scenery and directed toward the dead zone, each to a corresponding proximate sensitive to light surfaces of the decoder, while not disturbing the other coming light rays, wherein said refraction element has no physical contact with any of said detector surfaces.

Abstract translation: 本发明涉及一种用于检测和跟踪光点的四象限检测器的光学系统，其包括：（a）四象限检测器，其包括对光敏感的四个表面，所述表面通过 对光辐射不敏感的死区表面; （b）所述检测器和风景之间的光学元件，用于获取风景中的光点的图像，并将其图像投影到解码器的所述表面上; 和（c）所述检测器和其它光学器件之间的折射元件，其包括用于仅将来自风景的光线转向死区的凹槽，每个至少对应于解码器的光表面的相应接近，而不 扰乱另外的光线，其中所述折射元件与任何所述检测器表面没有物理接触。