JPS5826020U

JPS5826020U - Eyepiece with diopter adjustment mechanism

Info

Publication number: JPS5826020U
Application number: JP11903681U
Authority: JP
Inventors: 遠藤　到
Original assignee: オリンパス光学工業株式会社
Priority date: 1981-08-11
Filing date: 1981-08-11
Publication date: 1983-02-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の視度調整機構を有する接眼レンズの分解
斜視図、第２図はその断面図、第３図は本考案による視
度調整機構を有する接眼レンズの一実施例の断面図、第
４図は第３図の実施例の係止筒と保合部材との係合状態
を示す図である。１１・・・固定筒、ｌｌａ・・・歯部、１２・・・視度
調整筒、１３・・・係止筒、１３ａ・・・ローレット目
、１３ｂ・・・切欠部、１３Ｃ・・・歯部゛、１４・・
・係合部材、１４ａ・・・突出部、１５・・・コイルバ
ネ。FIG. 1 is an exploded perspective view of an eyepiece with a conventional diopter adjustment mechanism, FIG. 2 is a sectional view thereof, and FIG. 3 is a sectional view of an embodiment of an eyepiece with a diopter adjustment mechanism according to the present invention. FIG. 4 is a diagram showing a state of engagement between the locking tube and the retaining member of the embodiment shown in FIG. 3. DESCRIPTION OF SYMBOLS 11... Fixed tube, lla... Teeth, 12... Diopter adjustment tube, 13... Locking tube, 13a... Knurling, 13b... Notch, 13C... Teeth Part 14...
- Engagement member, 14a... protrusion, 15... coil spring.

Claims

[Scope of utility model registration request]

A diopter adjustment tube fitted into the fixed tube and supporting a part of the eyepiece optical system is moved forward and backward in the optical axis direction by rotating it around the optical axis with respect to the fixed tube. In an eyepiece lens having a diopter adjustment mechanism that adjusts the diopter by using the diopter, the eyepiece is fitted into a fixed tube so as to be movable in the direction of the optical axis and can be rotated integrally with the diopter adjustment tube only in the rotational direction. A locking tube having an engaging portion that engages with a retaining portion provided on the diopter adjustment tube, a locking portion provided on the locking tube, and a locking portion provided on the fixed tube. It is characterized in that it includes a locking portion that can mesh with the locking portion, and a coil spring that can elastically engage the two locking portions with each other in the optical axis direction to lock the diopter adjustment mechanism. , an eyepiece with a diopter adjustment mechanism.