Title:
光学部材及びカメラモジュール
Document Type and Number:
Japanese Patent JP7251423
Kind Code:
B2
Abstract:
In order to improve the problems of image defects and thinning associated with conventional optical filters, provided is an optical member which selectively reflects visible light in a specific wavelength range but suppresses reflection to light in a specific wavelength range. The optical member according to the present invention is provided with a reflective surface, and the average reflectance of unpolarized light rays incident at 45° from the perpendicular to the reflective surface is 80% or more in a wavelength region of 400 nm or more and 640 nm or less, and 8% or less in a wavelength region of 700 nm or more and 1150 nm or less. The optical member reflects light in a wavelength region of 400 nm or more and 640 nm or less, but suppresses reflection of light in a wavelength range of 700 nm or more and 1150 nm or less.
Inventors:
Hiroyuki Kishida
Application Number:
JP2019170721A
Publication Date:
April 04, 2023
Filing Date:
September 19, 2019
Export Citation:
Assignee:
JSR CORPORATION
International Classes:
G02B5/28; G02B5/04; G02B5/26; G03B11/00; G03B17/17
Domestic Patent References:
| JP2007183333A | ||||
| JP2008046162A | ||||
| JP2005345806A | ||||
| JP2007019860A |
Foreign References:
| US20170131526 | ||||
| CN108540704A |
Attorney, Agent or Firm:
Yoshinori Ikeda
Amano Kazunori
Katsumasa Fujimoto
Koji Ishida
Masako Matsuura
Amano Kazunori
Katsumasa Fujimoto
Koji Ishida
Masako Matsuura
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