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. 21, 2023
Filed:
Apr. 24, 2019
Valeo Comfort and Driving Assistance, Créteil, FR;
VALEO COMFORT AND DRIVING ASSISTANCE, Créteil, FR;
Abstract
One subject of the invention is a light guide (), for an interface module, in particular for a vehicle passenger compartment, for emitting or receiving a light beam in a cone that is elongate in a transverse direction and that is centred on a plane that is inclined by an angle θ with respect to an optical axis (z) of the light guide, taking the form of a prism made of transparent material of index n, characterised in that it comprises: •an interior dioptric interface intended to face a printed circuit board () bearing a light source () or a light detector, forming a convergent lens the focal point of which is located at an expected position of the light source () or of the light detector, •a first planar face () that is oriented parallel to the optical axis (z) of the light guide, and •a second planar face () that is inclined with respect to the first face () by an angle α respecting cos(α+θ)=(1−ε) n*cos 3α, with ε a number comprised between −0.1 and 0.1.