The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 31, 2024

Filed:

Aug. 28, 2023
Applicant:

Face International Corporation, Norfolk, VA (US);

Inventors:

Clark D Boyd, Portsmouth, VA (US);

Bradbury R Face, Smithfield, VA (US);

Jeffrey D Shepard, Norco, CA (US);

Assignee:

FACE INTERNATIONAL CORPORATION, Norfolk, VA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/26 (2006.01); G02B 1/04 (2006.01); G02B 5/00 (2006.01); G02B 5/02 (2006.01); G02B 5/20 (2006.01);
U.S. Cl.
CPC ...
G02B 5/0294 (2013.01); G02B 5/008 (2013.01); G02B 5/0242 (2013.01); G02B 5/0289 (2013.01); G02B 5/206 (2013.01); G02B 5/26 (2013.01); G02B 1/04 (2013.01);
Abstract

A particularly-formed multi-layer micron-sized particle is provided that is substantially transparent, yet that exhibits selectable coloration based on its physical properties. The disclosed physical properties of the particle are controllably selectable refractive indices to provide an opaque-appearing energy transmissive material when pluralities of the particles are suspended in a substantially transparent matrix material. Multiply-layered (up to 30+ constituent layers) particles result in an overall particle diameter of less than 5 microns. The material suspensions render the particles deliverable as aspirated or aerosol compositions onto substrates to form layers that selectively scatter specific wavelengths of electromagnetic energy while allowing remaining wavelengths of the incident energy to pass. The disclosed particles and material compositions uniquely implement optical light scattering techniques in energy (or light) transmissive layers that appear selectively opaque, while allowing 80+% of the energy impinging on the light incident side to pass through the layers.


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