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:
Jun. 01, 2010
Filed:
Nov. 28, 2006
Francois Roy, Seyssins, FR;
Thomas Girault, Grenoble, FR;
Francois Roy, Seyssins, FR;
Thomas Girault, Grenoble, FR;
STMicroelectronics SA, Montrouge, FR;
Abstract
An integrated circuit having a photosensitive cell with an entry face, a photosensitive element and at least two elements forming a light guide and placed between the entry face and the photosensitive element. The second element is located between the first element and the entry face such that the two elements guide the light coming from the entry face onto the photosensitive element and each element forms a light guide. The inner volume has a first surface located on the same side as the photosensitive element, a second surface located on the same side as the entry face, and a lateral surface joining said first surface to said second surface and separating the inner volume from the outer volume. The first surface of the inner volume of the second element has a smaller area than that of the second surface of the inner volume of the first element.