公开(公告)号：US20230044960A1

公开(公告)日：2023-02-09

申请号：US17769563

申请日：2020-10-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yurika TSUBAKINO ,  Hideki WADA

IPC: G02B5/22 ,  G02C7/10

Abstract: An optical filter (1) in which, in a transmission spectrum of the optical filter, when: a minimum value of transmissivity for a wavelength range of from 400 nm to 450 nm, inclusive, is defined as first minimum value MIN1; a minimum value of transmissivity for a wavelength range of from 525 nm to 595 nm, inclusive, is defined as second minimum value MIN2; a maximum value of transmissivity for a wavelength range of from 450 nm to 525 nm, inclusive, is defined as first maximum value MAX1; and a maximum value of transmissivity for a wavelength range of from 595 nm to 600 nm, inclusive, is defined as second maximum value MAX2, first minimum value MAX1 and second minimum value MIN1 are each at most ½ a smaller one of first maximum value MAX1 and second maximum value MAX2.