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. 17, 2018
Filed:
Jan. 25, 2017
Applicant:
Genius Electronic Optical Co., Ltd., Taichung, TW;
Inventors:
Assignee:
Genius Electronic Optical (Xiamen) Co., Ltd., Xiamen, Fujian, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/00 (2006.01); G02B 9/00 (2006.01); G02B 25/00 (2006.01); G02B 27/00 (2006.01); G02B 9/34 (2006.01); G02B 27/22 (2018.01);
U.S. Cl.
CPC ...
G02B 13/004 (2013.01); G02B 9/00 (2013.01); G02B 9/34 (2013.01); G02B 13/00 (2013.01); G02B 25/001 (2013.01); G02B 27/0025 (2013.01); G02B 27/2228 (2013.01);
Abstract
An ocular optical system has four lens elements, wherein the ocular optical system includes a first lens element having a display-side surface with a convex portion in a vicinity of its periphery, and a third lens element having an eye-side surface with a convex portion in a vicinity of its periphery. In addition, υ1 is an Abbe number of the first lens element, υ4 is an Abbe number of the fourth lens element, and the ocular optical system satisfies the relationship 20.00≤|υ1−υ4|.