Patent ID: 9664625
Date: 2017-05-30
CPC Classifications: G01B,G01N

Claim:
1. An optical system, comprising: a light source; a detector positioned to receive light from the light source and determine intensity of received light at selected wavelengths; an optical assembly positioned to establish an optical path from the light source to the detector; a pair of apertures conjugate to one another and positioned in the optical path; and an actuator coupled to at least one of the pair of apertures, the actuator configured to move the at least one of the pair of apertures into and out of the optical path; wherein the optical system is configured to operate in a calibration mode and an imaging mode, the imaging mode having at least one of the pair of apertures removed from the optical path; wherein detector includes a first module for performing the calibration mode and a second module apart from the first module for performing the imaging mode.