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. 28, 1998
Filed:
Aug. 28, 1996
Applicant:
Inventor:
Martine Lassalle, Voisins le Bretonneux, FR;
Assignee:
Aerospatiale Societe Nationale Industrielle, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02B / ;
U.S. Cl.
CPC ...
359614 ; 359601 ; 359613 ; 385902 ;
Abstract
A light trap for a parallel light beam includes an entry member having a frustoconical opening in it and a conical body attached to a back wall of the trap. The frustoconical opening narrows from the outside towards the inside and has at the outside a diameter equal to the diameter D of the light beam. The entry member has a thickness E=D/(tan 2A+tan A) where A is the cone angle of the frustoconical opening. The conical body reflects light uniformly in all directions.
Lassalle, Martine. (1998). Light trap (U.S. Patent No. 5745293). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5745293
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile