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:
Jul. 21, 2020
Filed:
Oct. 05, 2017
Applicant:
Konica Minolta Planetarium Co., Ltd., Tokyo, JP;
Inventor:
Hiroaki Ueda, Suita, JP;
Assignee:
Konica Minolta Planetarium Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/60 (2014.01); H04R 1/02 (2006.01); G02B 5/04 (2006.01); G03B 21/625 (2014.01); G03B 21/602 (2014.01); G03B 21/56 (2006.01);
U.S. Cl.
CPC ...
G03B 21/60 (2013.01); G02B 5/045 (2013.01); G03B 21/56 (2013.01); G03B 21/602 (2013.01); G03B 21/625 (2013.01); H04R 1/02 (2013.01);
Abstract
A dome screen for preventing generation of a missing part of a star projected on the dome screen is provided. A dome screencapable of projecting an image includes a dome portionand a sheet portion. The dome portionhas a plurality of holes and is formed in a hemispherical shape. The sheet portionis arranged on an outer side of the dome portionso as to overlap with the dome portionand has light reflectivity.