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:
May. 11, 1976
Filed:
Jul. 19, 1972
Robert George Neilson, Melton Mowbray, EN;
John Anthony Fawcett, Thrussington, EN;
The Rank Organisation Limited, Surrey, EN;
Abstract
An optical element and a method of forming such an optical element are disclosed. The optical element comprises a base of optically transparent material, a layer or several layers of material having selected physical and optical properties, and a coating integrally formed to the substrate and having substantially the same optical properties as the substrate so that the said layer or layers is or are effectively embedded therein. The layer or layers may be discontinuous e.g. formed as stripes, or patterned and the optical properties may be reflective, transmissive, absorptive, spectrally selective, photo-sensitive, photo-emissive or any combination of these depending on the circumstances. If several layers are provided these may be all identical or one or more may be different, having different optical properties and/or different physical properties of size, shape and pattern.