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:
Nov. 05, 2019
Filed:
Sep. 13, 2017
Apple Inc., Cupertino, CA (US);
Malcolm J. Northcott, Santa Cruz, CA (US);
Matthew E. Last, San Jose, CA (US);
Irene Perali, San Francisco, CA (US);
Bradford J. Zercoe, Danville, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A system such as a vehicle system, building, or electrical equipment may be provided with one or more optical components. The optical components may include a near-infrared camera or other components that operate at near-infrared wavelengths. A visible-light-reflecting-and-infrared-light-transmitting layer may overlap the optical component. This overlapping layer may have first and second index-matched layers and an interposed textured layer. The textured layer may be a thin-film interference filter or other coating that is configured to reflect visible light while transmitting infrared light. The transmitted infrared light may pass to the optical component with minimal wavefront distortion due to the index matching of the first and second layers. The texture of the textured layer may cause visible light to reflect diffusely and thereby provide the visible-light-reflecting-and-infrared-light-transmitting layer with a matte appearance.