Title:
光学カモフラージュフィルター
Document Type and Number:
Japanese Patent JP7438267
Kind Code:
B2
Abstract:
A system may include one or both of a light emitter and a light receiver. The system may include an optical filter adjacent one or both of the light emitter or the light receiver. The optical filter includes a wavelength selective scattering layer. The wavelength selective scattering layer may have a near-infrared scattering ratio of less than about 0.9. The filter may have a visible reflective haze ratio of greater than about 0.5. A method may include disposing the wavelength selective scattering layer adjacent one or both of the light emitter and the light receiver. An article may include the optical filter. The wavelength selective scattering layer may have an average near-infrared scattering of less than 60%, an average visible scattering of greater than 10%, and a difference between the % total visible reflectance and the % diffuse visible reflectance of less than 20.
Inventors:
Doo, Gwan Lei
Wheatley, John A.
Kolb, William Bee.
Schultz, John See.
Song, Dao Yun
Liveness, Luke Dee.
Wheatley, John A.
Kolb, William Bee.
Schultz, John See.
Song, Dao Yun
Liveness, Luke Dee.
Application Number:
JP2022084190A
Publication Date:
February 26, 2024
Filing Date:
May 24, 2022
Export Citation:
Assignee:
3M Innovative Properties Company
International Classes:
G02B5/02; G02B5/20; G03B11/00
Domestic Patent References:
| JP2010072616A | ||||
| JP2012524299A | ||||
| JP2013508778A |
Attorney, Agent or Firm:
Ken Fujii
Wakako Nomura
Tsukuda Seigen
Hideto Asamura
Wakako Nomura
Tsukuda Seigen
Hideto Asamura