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:
Sep. 11, 2018
Filed:
Oct. 09, 2012
Tokai Optical Co., Ltd., Okazaki-shi, Aichi, JP;
Inter-university Research Institute Corporation National Institutes of Natural Sciences, Okazaki-shi, Aichi, JP;
Masaya Suzuki, Okazaki, JP;
Yuko Nagata, Okazaki, JP;
Koji Inui, Okazaki, JP;
Yasuyuki Takeshima, Okazaki, JP;
Ryusuke Kakigi, Okazaki, JP;
TOKAI OPTICAL CO., LTD., Okazaki-Shi, Aichi, JP;
INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES, Okazaki-Shi, Aichi, JP;
Abstract
[Problem] To provide an evaluation method for evaluating spectacle lenses that is capable of objectively evaluating spectacle lenses suitable for a user by measuring brain activity, and a design method for designing spectacle lenses using the evaluation method. [Solution] A subject is allowed to wear to-be-evaluated lenses, and the subject is allowed to visually observe a visual stimulus object used to evoke an activity of a specific part of the visual cortex of the brain through the to-be-evaluated lenses, and an evoked activity of the specific part of the brain's visual cortex when the visual stimulus object is visually observed by the to-be-evaluated lenses is measured by an electroencephalograph or by a magnetoencephalograph, and the spectacle lenses are evaluated based on time (latency) from when a visual stimulus is received till when a change is caused thereby or based on the magnitude (amplitude) of activity.