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:
Mar. 29, 2016
Filed:
Jun. 08, 2012
Kyouhei Yamada, Saitama, JP;
Noriyuki Kawahara, Saitama, JP;
Kyouhei Yamada, Saitama, JP;
Noriyuki Kawahara, Saitama, JP;
Enplas Corporation, Saitama, JP;
Abstract
A member for controlling luminous flux () has an incidence surface () and an emitting surface (). The incidence surface () is a pyramidal surface having a recessed shape relative to the bottom of the member for controlling luminous flux (), and having rounded borders between the individual facets. The horizontal cross-section of the incidence surface () is substantially similar in shape to that of an n-hedral irradiated surface (). In the horizontal cross-section of the emitting surface (), each of the straight lines connecting together adjacent angles of the n angles that correspond to the n angles of the irradiated surface () is substantially parallel to the side that corresponds to the horizontal cross-section of the incidence surface (). The horizontal cross-section of the emitting surface () is the same as the n-hedron formed by the straight lines in the cross section, or fits inside the n-hedron.