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:
Aug. 12, 2014
Filed:
May. 19, 2011
Achim Pantfoerder, Cupertino, CA (US);
Achim Pantfoerder, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An integrated proximity and ambient light sensor assembly includes an emitter of an IR proximity signal, and a detector configured to detect the IR proximity signal from the emitter when the apparatus is sensing proximity, and to detect ambient light when the apparatus is sensing ambient light. The assembly includes an IR cut filter that has a film disposed over the detector that rejects IR light but passes visible light to the detector, and an opening in the film centered over a midpoint of the detector that passes IR and visible light to the detector. The opening allows IR light to reach the detector from within a narrow angle, but absorbs undesirable emitted IR light that is reflected by oily build-up or 'smudge' left on a cover of the device. The film allows visible light to pass for a wider angle to better determine average ambient light.