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:
May. 18, 2010
Filed:
Jan. 18, 2006
Tomoko Kumasawa, Tokyo-To, JP;
Masanori Umeya, Tokyo-To, JP;
Masachika Watanabe, Tokyo-To, JP;
Tsuyoshi Yamauchi, Tokyo-To, JP;
Tomoko Kumasawa, Tokyo-To, JP;
Masanori Umeya, Tokyo-To, JP;
Masachika Watanabe, Tokyo-To, JP;
Tsuyoshi Yamauchi, Tokyo-To, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a see-through transmitting-reflecting projection screen excellent in transparency, capable of sharply displaying, on its both sides, identical or different images even under bright environmental light. A transmitting-reflecting projection screencomprises a reflection-type screenand a transmission-type screenThe reflection-type screenreflects a specific polarized component of imaging light projected. The reflection-type screendoes not reflect a polarized component, different from the specific polarized component, of the imaging light, and this polarized component passes through the reflection-type screenand the transmission-type screen