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. 28, 2018
Filed:
May. 17, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Kenta Sudo, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is an eyepiece lens to be used for observing an image displayed on an image displaying surface, the eyepiece lens consisting of, in order from the image displaying surface side to an observation side: a first lens unit having a negative refractive power; and a second lens unit having a positive refractive power. The first lens unit consists of one negative lens, and the second lens unit consists of, in order from the image displaying surface side to the observation side, a positive lens and a negative lens that has a concave surface facing the observation side. During adjustment of a diopter, the first lens unit is configured to not move, and the second lens unit is configured to move.