Title:
光吸収性組成物、光吸収膜、及び光学フィルタ
Document Type and Number:
Japanese Patent JP7263165
Kind Code:
B2
Abstract:
To provide a technique that is advantageous in providing a light absorbing film or an optical filter with desired optical properties.SOLUTION: A light absorbing composition is provided. A light absorbing film obtained by curing the light absorbing composition containing a light absorbent composed of phosphonic acid and a copper component satisfies conditions expressed as: 4≤T550/T400, and 8≤T550/T800, where T400 represents a transmittance at 400 nm wavelength, T550 represents a transmittance at 550 nm wavelength, and T800 represents a transmittance at 800 nm wavelength.SELECTED DRAWING: None
Inventors:
Yuichiro Kubo
Tsai Lei
Tsai Lei
Application Number:
JP2019131041A
Publication Date:
April 24, 2023
Filing Date:
July 16, 2019
Export Citation:
Assignee:
NIPPON SHEET GLASS COMPANY,LIMITED
International Classes:
G02B5/22; G03B11/00
Domestic Patent References:
| JP2019028420A | ||||
| JP2011063814A | ||||
| JP2019066866A |
Foreign References:
| US20190346601 |
Attorney, Agent or Firm:
Koichi Kamata
Mitsuhiko Nishio
Mitsuhiko Nishio
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