Asahi Glass Company, Limited

Katsushi Kamijyo

Mitsuo Osawa

Makoto Hasegawa

Takashi Shibuya

Hiroshi Shimoda

Hiroshi Kumai

Kenta Sekikawa

Satoshi Kashiwabara

Hiroyuki Arishima

Masahiro Mori

Mitsuyuki Tatemura

Katsushi Miyake

The present invention relates to an optical filter, a solid-state imaging element and an imaging device lens which contain a near infrared ray absorbing layer having a specific near infrared ray absorbing dye dispersed in a transparent resin having a refractive index of 1.54 or more, and also relates to an imaging device containing the solid-state imaging element or the imaging device lens. The near infrared ray absorbing layer has a transmittance of visible light of from 450 to 600 nm of 70% or more, a transmittance of light in a wavelength region of from 695 to 720 nm of not more than 10%, and an amount of change of transmittance of not more than &#x2212;0.8.

Optical filter, solid-state imaging element, imaging device lens and imaging device

An optical member has: a transparent substrate; and a dielectric multilayer on the transparent substrate formed by stacking a plurality of unit refractive index layers each formed of a high-refractive index layer having a refractive index of 2 or more and a low-refractive index layer having a refractive index of 1.6 or less. In the optical member, a total number of the unit refractive index layers is 15 or more, and a number of the unit refractive index layers satisfying a condition of nd/nd&#x2267;3 is 10 or more, ndrepresents an optical thickness of the high-refractive index layer, and ndrepresents an optical thickness of the low-refractive index layer.

Optical member

Growing community of inventors

Haibara-gun, Japan

Katsushi Kamijyo