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. 21, 2017
Filed:
Sep. 23, 2014
Hyeonsik Kim, Seoul, KR;
Hyeonsik Kim, Seoul, KR;
Other;
Abstract
A step prismatic retro-reflector includes a main reflective corner having a shared reflective surface of a geometric single plane, a virtual step surface coming into contact with the shared reflective surface at a right angle, and a plurality of sub reflective corners. Each reflective corner has a pair of independent reflective surfaces coming into contact with each other at a right angle, and arranged along the step surface, wherein the retro-reflector elements are arranged to be alternated such that a corner ratio (l/w) of the sub reflective corners is 1.5 or more, a corner orientation of the main reflective corner deviates at an angle of 10 degrees or more with respect to a point of tangency of an incident plane, a reflection orientation thereof deviates at an angle within 10 degrees, and the corner orientations thereof deviate in the opposite direction to each other.