Patent ID: 11860104
Assignee: NOVA LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. An optical measurement system, comprising:
i. optics, wherein the optics comprise an illumination path and a collection path;
ii. a Raman detector;
iii. at least one adjustable spatial filter positioned upstream to the Raman detector; and
iv. a controller that is configured to generate or receive at least one filtering parameter of a spatial filtering process that is applied before a Raman detector; and
wherein the optics are configured to acquire Raman spectrums of multiple sites of the sample while applying the at least one filtering parameter;
wherein the optics comprises multiple wedge prisms, wherein the controller is configured to control a rotation of the multiple wedge prisms to find a combination of orientations of the multiple wedge prisms that once applied will direct an impinging beam generated by the optical measurement system through a compensating path of propagation of the impinging beam.