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:
Oct. 15, 2019
Filed:
Oct. 02, 2017
Applicants:
Makoto Inamoto, Kanagawa, JP;
Kenichiroh Saisho, Tokyo, JP;
Yasuhiro Satoh, Kanagawa, JP;
Jun Watanabe, Kanagawa, JP;
Inventors:
Makoto Inamoto, Kanagawa, JP;
Kenichiroh Saisho, Tokyo, JP;
Yasuhiro Satoh, Kanagawa, JP;
Jun Watanabe, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02B 27/48 (2006.01); G02B 26/10 (2006.01); G02B 3/00 (2006.01); G02B 17/06 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0101 (2013.01); G02B 3/0056 (2013.01); G02B 26/101 (2013.01); G02B 27/48 (2013.01); G02B 17/0605 (2013.01);
Abstract
An image display device includes a light source, an imaging element to form an image with a light beam from the light source, and a lens array illuminated with the light beam forming the image for image display, in which lenses are arranged closely to each other. In which in the lens array a curvature radius of a surface of a border of neighboring lenses is set to be smaller than a wavelength of the light beam.