JPS6119210U

JPS6119210U - Optical axis adjustment device for focus adjustment mechanism

Info

Publication number: JPS6119210U
Application number: JP10233184U
Authority: JP
Inventors: 康人尾崎
Original assignee: 住友生命保険相互会社
Priority date: 1984-07-05
Filing date: 1984-07-05
Publication date: 1986-02-04

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 the drawing]

第１図は本考案実施例の正面図、第２図はその背面図、
第３図はそのＡ−Ａ’断面図、第４図はその１３−Ｂ’
断面図、第５図はクサビ部材１６の斜視図であるＪ１・・・ハウジング、２・・・一端面、３・・・第１の
円筒面、４・・・他端面、５・・・第２の円筒面、６・
・一帯球凹面、７・・・可．動円筒体、８・・・第１の
円柱面、９・・・第２の円柱面、１０・・・帯球凸面、
１１・・・四角錐体、１２−・・・傾斜平面、１３・・
・Ｕ字溝、１４・・一調整用ネジ、１６・・・クサビ部
材、１８・・・レンズ鏡筒、２０・・・ラック、２１・
・・軸受、２２・・・ピニオン、２３・・・調節用つま
み、２４・・・レンズ。Fig. 1 is a front view of the embodiment of the present invention, Fig. 2 is a rear view thereof,
Figure 3 is a sectional view taken along line AA', Figure 4 is 13-B'
The sectional view and FIG. 5 are perspective views of the wedge member 16. 1...Housing, 2...One end surface, 3...First cylindrical surface, 4...Other end surface, 5... second cylindrical surface, 6.
・One zone spherical concave surface, 7... Acceptable. Dynamic cylindrical body, 8... first cylindrical surface, 9... second cylindrical surface, 10... band convex surface,
11... Square pyramid, 12-... Inclined plane, 13...
・U-shaped groove, 14... One adjustment screw, 16... Wedge member, 18... Lens barrel, 20... Rack, 21...
...bearing, 22...pinion, 23...adjustment knob, 24...lens.

Claims

[Claims for Utility Model Registration] A generally circular through hole, a first cylindrical surface opening at one end and having a predetermined diameter D1, and a second cylindrical surface opening at the other end and having a diameter D2 smaller than D1. , and a housing formed with a spherical concave surface that connects the two cylindrical surfaces, and a first cylindrical surface that is cylindrical as a whole and has a gap on its outer peripheral surface between it and the first cylindrical surface. , a second cylindrical surface having a gap with the second cylindrical surface, and a convex band surface that fits into the concave surface of the band sphere, and one end of each side surface of the quadrangular pyramid. a movable cylindrical body formed with four inclined planes forming a section; four wedge members each having an arcuate outer peripheral surface that abuts the through hole of the housing and a side surface that abuts one of the inclined planes; =SAN=LMUE T2- A lens barrel that is slidably displaced in the axial direction along the inner surface of the movable cylindrical body, a pinion provided on the side surface of the movable body, and a pinion provided on the side surface of the lens barrel. The movable cylindrical body has a focus adjustment mechanism that displaces the lens barrel by engaging the racks provided on the pinion shaft and rotating an adjustment knob provided on the pinion shaft, and the movable cylindrical body is connected to the spherical surface fitting portion and the four lenses. It is held between wedge members so that the lens optical axis can be adjusted around the spherical center of the band spherical surface by adjusting the four screws, and the lens focal point can be adjusted along the adjusted lens optical axis. The optical axis adjustment device of the focus adjustment mechanism.