OPTICAL FILTER

摘要

Provided is an optical filter integrally provided with a light blocking film capable of suppressing stray light. An optical filter may be used for an imaging apparatus having a built-in image sensing device on which light from a subject or a light source is incident. The optical filter includes: an optical filter main body arranged between the subject or the light source and the image sensing device and having a transmission property for the incident light; and a frame-shaped light blocking film integrally formed on at least one surface of the optical filter main body. The light blocking film satisfies the following condition (1) and/or condition (2). (1) A concavity/convexity is formed on at least a part of an inner peripheral surface of the light blocking film. (2) A thin part is formed on at least a part of an inner edge of the light blocking film.

主权项

1. An optical filter used for an imaging apparatus having a built-in image sensing device on which light from a subject or a light source is incident, the optical filter comprising:
an optical filter main body arranged between the subject or the light source and the image sensing device and having a transmission property for the incident light; and a frame-shaped light blocking film integrally formed on at least one surface of the optical filter main body, wherein the frame-shaped light blocking film satisfies the following condition (1) and/or condition (2):
(1) a concavity/convexity is formed on at least a part of an inner peripheral surface of the frame-shaped light blocking film in planar view; and(2) a thin part is formed on at least a part of an inner edge of the frame-shaped light blocking film.