Patent ID: 11971307
Assignee: BEIJING RSLASEROPTO-ELECTRONICS TECHNOLOGY CO. LTD
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. The device according to claim 1, wherein the optical classifier comprises:
a third deflecting member having a third wedge angle and configured to deflect the laser beam passing through the first FP etalon, or deflect the laser beam passing through the second FP etalon; or
a fourth deflecting member, comprising:
a light transmitting hole penetrating the fourth deflecting member parallel to a light entrance direction of the laser beam, wherein,
when the fourth deflecting member deflects the laser beam passing through the first FP etalon, the light transmitting hole is configured to allow the laser beam passing through the second FP etalon to penetrate the light transmitting hole; and
when the fourth deflecting member deflects the laser beam passing through the second FP etalon, the light transmitting hole is configured to allow the laser beam passing through the first FP etalon to penetrate the light transmitting hole.