Patent ID: 7760446

Claim:
A method of fixing an optical member for fixing a second lens to a first lens, the method comprising: a) a step of disposing, on the first lens, an intermediate member that contains a material which generates heat by being irradiated with light and a material whose adhesive strength increases by a generation of heat; b) a first irradiating step of irradiating light that is transmitted to the intermediate member disposed on the first lens; c) a step of adjusting a position of the second lens with respect to the first lens so that the intermediate member is disposed between the first lens and the second lens; and d) a second irradiating step of irradiating light that is transmitted through one of the first lens and the second lens onto the intermediate member disposed between the first lens and the second lens, wherein a portion irradiated with the light in the first irradiating step and a portion irradiated with the light in the second irradiating step are different from each other, whereby the intermediate member generates heat for the intermediate member to be fused to fix the second lens to the first lens.