Title:
OPTICAL FILTER AND DEVICE USING OPTICAL FILTER
Document Type and Number:
WIPO Patent Application WO/2016/158461
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an optical filter that has little incidence angle dependency, and that is capable of reducing multiple reflections when a near-infrared light comes in from an oblique direction. The optical filter according to the present invention has a basal material and a dielectric multilayer film provided on at least one surface of the basal material. The basal material is characterized by having a transparent resin layer containing a compound (A) that has an absorption maximum at a wavelength equal to or higher than 600 nm but lower than 750 nm and a compound (S) that has a absorption maximum at a wavelength of 750-1050 nm, or having a transparent resin layer containing the compound (A) and a transparent resin layer containing the compound (S). The basal material is also characterized by satisfying the following requirement (a): (a) the average value of transmittance when a measurement is made in the vertical direction to the optical filter within a wavelength range of 800-1000 nm is equal to or less than 5%.
Inventors:
NAGAYA KATSUYA (JP)
SHIGEOKA DAISUKE (JP)
HORIUCHI MASAKO (JP)
KASAI TATSUYA (JP)
SHIGEOKA DAISUKE (JP)
HORIUCHI MASAKO (JP)
KASAI TATSUYA (JP)
Application Number:
PCT/JP2016/058543
Publication Date:
October 06, 2016
Filing Date:
March 17, 2016
Export Citation:
Assignee:
JSR CORP (JP)
International Classes:
G02B5/22; G02B5/28
Domestic Patent References:
| WO2014192714A1 | 2014-12-04 |
Foreign References:
| JP2015040895A | 2015-03-02 | |||
| JP2015044994A | 2015-03-12 | |||
| JP2001115050A | 2001-04-24 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
Patent business corporation SSINPAT (JP)
Patent business corporation SSINPAT (JP)
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