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, 2007
Filed:
Dec. 02, 2004
Jun-ichiro Koyama, Nara, JP;
Yoshinao Oga, Hiroshima, JP;
Hiroki Orita, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Multiplicities of red LED cell(s), green LED cell(s), and blue LED cell(s) are arrayed in two dimensions on a single light source substrate so as to form LED plane light source(s). First lens array(s) and second lens array(s) are disposed on side(s) of the LED plane light source(s) from which light exits. Respective lens array(s) may be provided with plurality or pluralities of lenses opposing LED cell(s). Light irradiated from LED cell(s) is, by action of respective lens(es) of first lens array(s), separately collected and is thereafter, by action of respective lens(es) of second lens array(s), separately magnified; and light exiting therefrom is combined in mutually superposed fashion at irradiation surface(s). Furthermore, respective LED cell(s) is/are made to undergo timed lighting by color. Image(s) formed by reflective liquid crystal(s) and/or DMD(s) is/are switched in conformity to such timed lighting and such image(s) is/are projected onto screen(s).