Patent ID: 9664982
Date: 2017-05-30
CPC Classifications: G01B,G02B,G03B

Claim:
1. An optical system driving device comprising: a movable body that is movable in at least three degrees of freedom; a light transmissive unit that is integrally mounted to the movable body and moves with the movable body; a driving unit configured to move the movable body in each of the at least three degrees of freedom; and a detection unit that detects a position of the movable body in each of the at least three degrees of freedom, wherein the detection unit includes: a light-emitting unit that emits light toward the light transmissive unit; and an optical detector that receives light emitted from the light-emitting unit and passing through the light transmissive unit and outputs a light-receiving signal based on the received light, the detection unit detecting a position of the movable body in each of the at least three degrees of freedom based on the light-receiving signal from the optical detector.