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:
Feb. 11, 2025
Filed:
Sep. 25, 2019
Agc Glass Europe, Louvain-la-Neuve, BE;
Meijie Li, Louvain-la-Neuve, BE;
Yannick Sartenaer, Vedrin, BE;
Quentin Fraselle, Mont Saint Guibert, BE;
Thomas Lambricht, Perwez, BE;
AGC GLASS EUROPE, Louvain-la-Neuve, BE;
Abstract
A detection device with an optical device comprising at least one light source and at least one light sensitive element optically decoupled inside the detection device. A protective housing encloses the optical device. An optical cover comprising an internal surface facing the optical device and an external surface opposite to the internal surface, wherein the optical cover is transparent at the operating wavelength of the optical device, and comprises at least two separate apertures. A first aperture faces the light source and a second aperture faces the light sensitive element. The optical cover is one piece comprised of diffusing, absorbing, multilayer elements, and/or wavelength-changing elements placed between the first and second apertures in an optical decoupling zone outside the field of view of the light source and the sensitive element to avoid the stray light travelling from the light source to the sensitive element within the optical cover.