公开(公告)号：US5886784A

公开(公告)日：1999-03-23

申请号：US910173

申请日：1997-08-13

Applicant: Johann Engelhardt

Inventor： Johann Engelhardt

IPC: G01J3/14 ,  G01J3/36 ,  G01J3/44 ,  G02B21/00 ,  G01J3/28

CPC classification number: G01J3/02 ,  G01J3/0262 ,  G01J3/14 ,  G01J3/36 ,  G01J3/4406 ,  G02B21/0064 ,  G02B21/0076

Abstract: Described is a device (16) for the selection and detection of at least two spectral regions in a beam of light (14), the device including a selection unit (25) and a detection unit (26). To ensure reliable simultaneous selection and detection of different spectral regions plus high yield and simplest possible construction, the device is designed such that the selection unit (25) comprises means (27) for splitting the light beam (14) up into its spectral components and means (28) for not only masking off a first spectral region (29) but also reflecting at least part (30) of the spectral region which is not masked off, and the detection unit (26) comprises a first detector (31) located in the path of the light in the masked-off first spectral region (29) and a second detector (32) located in the path of the light of the reflected spectral region (30).

Abstract translation: 描述了用于选择和检测光束（14）中的至少两个光谱区域的装置（16），该装置包括选择单元（25）和检测单元（26）。 为了确保不同光谱区域的可靠同时选择和检测以及高产量和最简单的可能结构，该设备被设计成使得选择单元（25）包括用于将光束（14）分成其光谱分量的装置（27） 用于不仅掩蔽第一光谱区域（29）而且还反射未屏蔽的光谱区域的至少一部分（30）的装置（28），并且检测单元（26）包括位于 在遮光掉的第一光谱区域（29）中的光的路径和位于反射光谱区域（30）的光的路径中的第二检测器（32）。