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:
Apr. 20, 2004
Filed:
Jun. 05, 2002
Honeywell, Saint Aubin, FR;
Abstract
An integrated light-transmission optical module for a safetyoptoelectronic barrier, comprises a condenser element having a first lens, and an objective having a second lens which are located respectively at a first end and a second end. The module comprises a single-piece entity made of transparent material, and having an intermediate zone provided with deflectors formed by a succession of dioptric surfaces distributed along the direction of light flux propagation between the first lens and the second lens. The deflectors ensure a deflection outside the optical module of stray rays reflected inside the module, so as to prevent transmission of strays rays, either through the second lens of the objective if it is a light transmission coming from the condenser element, or through the first lens when receiving light coming from the second lens.