| 摘要 |
[Problem] To reduce the influence of difference in the light incidence angle on image quality. [Solution] This optical filter member comprises a base (31) that is formed of a light transmitting material and an optical film that is provided on the surface of the base (31). The optical film comprises first, second and third dielectric multilayer films (32-34), in each of which a plurality of dielectric layers having different refractive indexes are laminated. The first dielectric multilayer film (32) has a first light transmission range (W1) that is within the wavelength range of visible light. The second dielectric multilayer film (33) has a second light transmission range (W2) that is within the first light transmission range (W1), while having an average refractive index higher than that of the first dielectric multilayer film (32). The third dielectric multilayer film (34) comprises the second light transmission range (W2) and blocks light having a wavelength twice the center wavelength of the second light transmission range (W2). The second dielectric multilayer film (33) is provided on one main surface of the base together with the first dielectric multilayer film (32) or the third dielectric multilayer film (34). |
