Patent ID: 8512492

Claim:
A method of manufacturing an optical filter comprising: (a) providing a first bonding film to a first substrate provided with a first reflecting film capable of reflecting a light beam and transmitting a light beam with a specific wavelength; (b) providing a second bonding film to a second substrate provided with a second reflecting film capable of reflecting a light beam and transmitting a light beam with a specific wavelength; (c) forming a first barrier film adapted to cover a surface of the first reflecting film of the first substrate to thereby protect the first reflecting film; (d) forming a second barrier film adapted to cover a surface of the second reflecting film of the second substrate to thereby protect the second reflecting film; (e) providing activation energy by irradiating each of the first and second bonding films using an ultraviolet ray or exposing each of the first and second bonding films to ozone gas; and (f) bonding the first and second bonding films activated to thereby bond the first and second substrates to each other, wherein step (c) is performed prior to providing the activation energy to the first bonding film in step (e), step (d) is performed prior to providing the activation energy to the second bonding film in step (e), the first and second bonding films and the first and second barrier films are each formed including an Si skeleton having a siloxane bond, and an elimination group connected to the Si skeleton, step (e) includes (e1) forming a dangling bond by eliminating the elimination group from the Si skeleton in each of the first and second bonding films, and step (f) includes (f1) bonding the dangling bonds of the respective first and second bonding films, which are activated, to each other.