公开(公告)号：US3630619A

公开(公告)日：1971-12-28

申请号：US3630619D

申请日：1970-03-13

Applicant: NORTH AMERICAN ROCKWELL

Inventor： ROSEN FRED D ,  WRINKLE WALTER W

IPC: G01J3/00 ,  G01J3/06 ,  G01J3/32 ,  G01J3/40

CPC classification number: G01J3/32 ,  G01J3/0213 ,  G01J2003/062

Abstract: An apparatus and means are disclosed for producing a compensating filter to be used in a spectrophotometer to compensate for variations in intensity of the various wavelengths in a particular light source and to compensate for the spectral response of the optical components in the spectrophotometer so that when the filter is used therein the filtered spectrum of the light source produces a photodetector output that is substantially constant with wavelength. A method utilizing the filter is disclosed to record the spectrophotometry of the light rays from an object.