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:
Aug. 21, 2001
Filed:
May. 14, 1997
Shigeru Aoyama, Kyoto, JP;
Masayuki Shinohara, Kyoto, JP;
Tsukasa Yamashita, Kyoto, JP;
Hiroshi Kitajima, Kyoto, JP;
Omron Corporation, Kyoto, JP;
Abstract
A first prism array (,) formed on a prism array plate (,) is arranged so as to confront a second prism array (,) formed on a prism array plate (,). When a light ray (r) that is parallel to an optical axis is transmitted through the first prism array, the light ray r enters into the second prism array (,) while refracted. The light ray that has been refracted by the second prism array (,) becomes an original light ray (r) that is parallel to the optical axis. Therefore, the light ray (r) that has passed through an optical path converting optical element (,) becomes a light ray (r) that is shifted in a direction perpendicular to the optical axis. As a result, the light is split and shuffled by the first prism array (,), so that a luminous intensity distribution thereof is uniformed.