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:
Dec. 04, 2018
Filed:
Mar. 16, 2016
Applicant:
Konica Minolta, Inc., Tokyo, JP;
Inventors:
Assignee:
Konica Minolta, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/115 (2015.01); H04N 9/31 (2006.01); G02B 1/113 (2015.01); G02B 1/118 (2015.01); G02B 1/116 (2015.01); G02B 1/11 (2015.01); H04N 13/04 (2006.01); G02B 1/111 (2015.01);
U.S. Cl.
CPC ...
G02B 1/115 (2013.01); G02B 1/11 (2013.01); G02B 1/113 (2013.01); G02B 1/116 (2013.01); G02B 1/118 (2013.01); H04N 9/3158 (2013.01); H04N 9/3161 (2013.01); H04N 9/3164 (2013.01); H04N 13/0431 (2013.01); H04N 13/0459 (2013.01); G02B 1/111 (2013.01);
Abstract
A projection lens included in a projector using laser beams as a light source is provided, the laser beams including as the light source, first blue laser light beams, second blue laser beams, first green laser beams, second green laser beams, first red laser beams, and second red laser beams, which are different in wavelength range. The projection lens has a relative maximum value of a transmittance on an optical axis between a wavelength not shorter than 645 nm and a wavelength not longer than 680 nm.