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. 17, 1998
Filed:
Apr. 02, 1997
Kazuo Takahashi, Ota, JP;
Norioki Fujimoto, Kumagaya, JP;
Masashi Takazawa, Oizumi-machi, JP;
Takashi Odaira, Ota, JP;
Tomohito Koizumi, Ota, JP;
Kiyondo Kobayashi, Ashikaga, JP;
Syozo Kato, Ota, JP;
Tetsuo Miyamoto, Ota, JP;
Mamoru Kubo, Sakai-machi, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
A solar lighting apparatus according to the present inveniton is configured so that one lighting prism plate is rotatably arranged in a lighting portion or a plurality of lighting prism plates are rotatably arranged in the lighting portion at intervals of a predetermined distance, and a prism angle of each the lighting prism plate is controlled correspondingly to the height and azimuth of the sun so that the sunlight refracted by the lighting prism plates goes out in a predetermined direction. Therefor, the lighting prism plates and parts relevant thereto are formed under predetermined conditions. A solar lighting controller in a solar lighting apparatus operated under predetermined conditions for improvement of lighting efficiency, reduction of consumed electric power, etc., the controller comprising a solar position detector, a central processing unit including an arithmetic operation storage means such as a micro computer and a necessary means such as an optical axis sensor.