光学フィルターおよびその用途

Japanese Patent JP7255600

B2

The present invention addresses the problem of providing an optical filter which achieves a balance between a low incident angle dependence in the near-infrared region and superior red color transmittance characteristics, and for which ghosting is improved. This optical filter is characterized by satisfying the following conditions (A) to (D): (A) the average value of transmittance when measured from the vertical direction in the wavelength range of 430-580 nm is no less than 75%; (B) the average value of transmittance when measured from the vertical direction in the wavelength range of 800-1000 nm is no more than 10%; (C) the average value of transmittance when measured from the vertical direction in the wavelength range of 700-750 nm is greater than 46%; and (D) the absolute value of the difference between a value (Ya), which is the shortest wavelength at which the transmittance when measured from the vertical direction in the wavelength range of 560-800 nm is 50%, and a value (Yb), which is the shortest wavelength at which the transmittance when measured from an angle of 30° relative to the vertical direction is 50%, is less than 15 nm.

JP7110538	High refractive composition, high refractive film, and method for producing high refractive film
JPH05203830	OPTICAL MULTIPLEXER DEMULTIPLEXER
WO/2002/084343	MULTILAYER POLYMER FILM WITH ADDITIONAL COATINGS OR LAYERS

Hiroyuki Kishida
Katsuya Nagaya
Tatsuyuki Yamamoto
Atsunori Nagao

JP2020546021A

April 11, 2023

September 10, 2019

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JSR CORPORATION

G02B5/28; G02B5/22; G02B5/26; G03B11/00; H01L27/146

JP2005338395A
JP2014048402A
JP2016142891A
JP2019012121A

WO2018043564A1
WO2018155634A1
WO2016133099A1
WO2018088561A1

Patent Attorney Corporation SS International Patent Office

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