Patent ID: 9297997
Filing Date: 2016-03-29
CPC Classification: G01J,G02B

Claim Text:
1. An optical module comprising: a first reflection film that reflects part of incident light and transmits part thereof; a second reflection film that faces the first reflection film, reflects part of incident light, and transmits part thereof; a first driver provided in a region outside an optical interference area formed by the first reflection film and the second reflection film in a plan view, the first driver having a plurality of sub-drivers that are driven independently of each other via voltage application; a second driver that changes a dimension of a gap between the first reflection film and the second reflection film; and a voltage controller that applies first drive voltages to the sub-drivers and applies a second drive voltage to the second driver, wherein the voltage controller applies a first drive voltage set for each of the sub-drivers in accordance with parallelism between the first reflection film and the second reflection film at a time when the dimension of the gap is changed.