| 摘要 |
<p>An optical filter device (500) includes a variable wavelength interference filter (501) having a pair of reflecting films (54, 55) opposed to each other, and an electrostatic actuator (56) adapted to change a gap dimension between the pair of reflecting films (54, 55), and at least one bandpass filter (502) disposed on an optical axis of the pair of reflecting films (54, 55), and the bandpass filter (502) includes a plurality of transmission wavelength bands (Rp) in which light is transmitted.</p> |
