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:
Apr. 09, 2019
Filed:
Jun. 24, 2016
Applicant:
Young Optics Inc., Hsinchu Science Park, TW;
Inventor:
Sheng-Tang Lai, Hsinchu Science Park, TW;
Assignee:
YOUNG OPTICS INC., Hsinchu Science Park, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 3/02 (2006.01); G02B 13/00 (2006.01); G02B 9/62 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 13/0045 (2013.01); G02B 9/62 (2013.01); G02B 13/006 (2013.01); G02B 27/0025 (2013.01);
Abstract
An optical lens includes a first lens group, a second lens group and an aperture stop. The first lens group and the second lens group are arranged in order along a direction, and the aperture stop is disposed between the first lens group and the second lens group. The second lens group has positive refractive power and a lens with a diffractive optical surface, and the optical lens satisfies the condition: 2<(Φd*V)/Φr<5, where Φd denotes refractive power of the diffractive optical surface, Φr denotes refractive power of the lens, and V denotes an Abbe number of the lens.