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.
Patent No.:
Date of Patent:
Apr. 28, 1981
Filed:
Mar. 31, 1978
Applicant:
Inventors:
Henry Harrison, deceased, late of Locust Valley, NY (US);
Henry C Harrison, Locust Valley, NY (US);
Assignee:
Halm Instrument Co., Inc., Glen Head, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
3502 / ; 350261 ; 428441 ;
Abstract
A low reflection coating for windows. A coating of silicone rubber is applied on one surface of the window and preferably also on the other surface. Each coating preferably has a thickness of several wavelengths of light and has a minimum thickness of two microns. The coating is low cost and is suitable for large areas, for instance solar heat collectors. Reflectivity is reduced by approximately one-third. The coating has no relation to a quarter wavelength or any multiple thereof of incident light.