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:
Aug. 01, 2017
Filed:
Jan. 09, 2013
Nippon Electric Glass Co., Ltd., Otsu-shi, Shiga, JP;
Masaaki Kadomi, Otsu, JP;
Masanori Wada, Otsu, JP;
Hirokazu Tanaka, Otsu, JP;
Takasi Akimoto, Nagahama, JP;
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Abstract
Provided is a liquid crystal lens having low wavefront aberration. A liquid crystal lens () includes a liquid crystal layer (), a first electrode (), a second electrode (), and a third electrode (). The first electrode () is provided with an opening () and a communicating cutout () formed therein, the communicating cutout () allowing the opening () to communicate with the outside. The second electrode () includes a main electrode portion () and a linear leading electrode portion (). The main electrode portion () is disposed within the opening (). The main electrode portion () is electrically insulated from the first electrode (). The leading electrode portion () is electrically connected to the main electrode portion (). The leading electrode portion () is disposed within the communicating cutout (). The third electrode () faces at least part of the first and second electrodes (). A junction of the leading electrode portion () with the main electrode portion () has a width of 70 μm or less.