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:
Jul. 29, 2025
Filed:
Sep. 21, 2021
Oledcomm, Vélizy-Villacoublay, FR;
Juan Camilo Valencia-Estrada, Vélizy-Villacoublay, FR;
Alejandro Espinoza-Garcia, Plaisir, FR;
Abstract
A compound parabolic concentrator includes a coupling surface for positioning on a sensitive surface of a photodetector of a receiving device, a collecting surface for receiving optical signals, and a side surface located between the coupling surface and the collecting surface, the side surface including two inclined and symmetrical parabolic portions when viewed in a cross-sectional plane passing through a reference axis of the compound parabolic concentrator, wherein the side surface is defined by an equation using input parameters including a dimension of the sensitive surface of the photodetector, an acceptance angle, a first refractive index of a medium in which the compound parabolic concentrator is to be immersed, a second refractive index of a material used to manufacture the compound parabolic concentrator, and a diametrical expansion factor.