Search International and National Patent Collections

1. (WO2018025768) BINOCULARS AND EYEPIECE LENS

Pub. No.:    WO/2018/025768    International Application No.:    PCT/JP2017/027472
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Sat Jul 29 01:59:59 CEST 2017
IPC: G02B 23/02
G02B 25/00
Applicants: NIKON VISION CO., LTD.
株式会社ニコンビジョン
Inventors: FUKUMOTO Satoshi
福本 哲
TOMITA Katsunori
富田 賢典
NISHIOKA Tatsushi
西岡 達志
Title: BINOCULARS AND EYEPIECE LENS
Abstract:
Provided are binoculars and an eyepiece lens having excellent optical performance. Binoculars 10 are characterized by having a first lens barrel (body 26) and a second lens barrel (body 36) having objective lenses (objective lens groups 101, 201) and eyepiece lenses (eyepiece lens groups EL), and Abbe-Koenig prisms (erecting prisms 110, 210) which are erecting optical elements provided to the first lens barrel (body 26) and the second lens barrel (body 36), the product of the effective diameter (mm) and the real field of view (°) of the objective lenses (objective lens groups 101, 201) being 450 mm° or greater.