Patent ID: 6590649
Filing Date: 2003-07-08
Classification: G01J,G02B

Abstract:
A spectrophotometer, comprising a housing in which a measuring system is arranged, which housing has a measuring opening, via which light is passed to the measuring system, and whereby the measuring system comprises a grating monochromator, an autocollimator cooperating therewith, and detection means for the light originating from the grating monochromator, characterized in that the grating monochromator and the autocollimator form a grating lens which, as a single, physical structure, has on one side convex collimator lens structure and on the other side an externally mirrored grating structure, the plane of the grating structure being inclined at a relative small angle to the optical axis of the measuring system and/or to the optical axis of the collimator lens.