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:
Nov. 13, 2007
Filed:
Nov. 28, 2006
Yutaka Sawayama, Nabari, JP;
Sayuri Fujiwara, Nara, JP;
Makoto Kanbe, Sakurai, JP;
Kiyoshi Minoura, Nara, JP;
Ichiro Ihara, Nishinomiya, JP;
Yutaka Sawayama, Nabari, JP;
Sayuri Fujiwara, Nara, JP;
Makoto Kanbe, Sakurai, JP;
Kiyoshi Minoura, Nara, JP;
Ichiro Ihara, Nishinomiya, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A corner cube reflector includes a two-dimensional arrangement of unit elements. The unit elements are arranged at a pitch of 200 μm or less. As viewed in a direction from which incoming light is coming, each unit element has a peak point and a bottom point. A peak portion, including the peak point, has an excessive portion and/or a missing portion as compared with an ideal peak portion of an ideal corner cube. The level of the peak point is lower than that of the ideal peak point of the ideal corner cube. An average level difference hbetween the level of the bottom point and that of an ideal bottom point of the ideal corner cube is smaller than an average level difference hbetween the level of the peak point and that of the ideal peak point.