JPS61150316U

JPS61150316U -

Info

Publication number: JPS61150316U
Application number: JP3437285U
Authority: JP
Priority date: 1985-03-11
Filing date: 1985-03-11
Publication date: 1986-09-17

Description

[Brief explanation of drawings]

第１図〜第２３図は本考案の一実施例を示し、
第１図はカメラの水平縦断面図、第２図はカメラ
の内部機構を略示的に示した斜視図、第３図はカ
メラの一部を破断して示した平面図、第４図およ
び第５図はカメラの平面図、第６図はカメラの垂
直断面図、第７図はカメラの水平断面図、第８図
および第９図は副光学系挿脱機構の要部詳細断面
図、第１０図は同じく要部略示断面図、第１１図
および第１２図は副光学系挿脱機構に連動する阻
止機構の正面図、第１３図は自動焦点調節機構の
平面図、第１４図は同じく垂直断面図、第１５図
および第１６図はフアインダ光学系切換機構の平
面図、第１７図および第１８図はカム板近傍の平
面図、第１９図は光学系駆動用モータ制御回路図
、第２０図はモータ制御回路の動作を制御する論
理回路図、第２１図はカム線図、第２２図はカメ
ラの外観斜視図、第２３図は裏蓋を開いたカメラ
の背面図、第２４図は他の実施例に係るカメラの
要部水平断面図である。１……カメラ本体、１ａ……フアインダ収納部
、３……主光学系、４……副光学系、１０……台
板、１２……モータ、２６……カムギヤ、２７…
…駆動部材、５１……ラツク、５３……カム部材
、５５……切換駆動部材、５６……第１対物レン
ズ、５７……第２対物レンズ、６１……検知ブラ
シ板、６２……エンコーダ用プリント基板、７１
……カム板、７３……カムレバー。 1 to 23 show an embodiment of the present invention,
Fig. 1 is a horizontal longitudinal sectional view of the camera, Fig. 2 is a perspective view schematically showing the internal mechanism of the camera, Fig. 3 is a partially cutaway plan view of the camera, Figs. 5 is a plan view of the camera, FIG. 6 is a vertical sectional view of the camera, FIG. 7 is a horizontal sectional view of the camera, and FIGS. 8 and 9 are detailed sectional views of main parts of the sub-optical system insertion/removal mechanism. FIG. 10 is a schematic sectional view of the main parts, FIGS. 11 and 12 are front views of the blocking mechanism linked to the sub-optical system insertion/removal mechanism, FIG. 13 is a plan view of the automatic focus adjustment mechanism, and FIG. 14 15 and 16 are plan views of the finder optical system switching mechanism, Fig. 17 and 18 are plan views of the vicinity of the cam plate, and Fig. 19 is a motor control circuit diagram for driving the optical system. , Fig. 20 is a logic circuit diagram that controls the operation of the motor control circuit, Fig. 21 is a cam diagram, Fig. 22 is an external perspective view of the camera, Fig. 23 is a rear view of the camera with the back cover open, and Fig. 23 is a rear view of the camera with the back cover open. FIG. 24 is a horizontal sectional view of a main part of a camera according to another embodiment. DESCRIPTION OF SYMBOLS 1...Camera body, 1a...Finder storage part, 3...Main optical system, 4...Sub-optical system, 10...Base plate, 12...Motor, 26...Cam gear, 27...
...Drive member, 51...Rack, 53...Cam member, 55...Switching drive member, 56...First objective lens, 57...Second objective lens, 61...Detection brush plate, 62...For encoder Printed circuit board, 71
...Cam plate, 73...Cam lever.

Claims

[Claims for Utility Model Registration] An optical system, an optical system support member that supports the optical system, a drive source, and a driving force of the drive source that moves the optical system support member in the optical axis direction of the optical system. In the optical system moving device, the optical system moving mechanism has a guide shaft formed with a male thread, and supports the guide shaft along a direction parallel to the optical axis of the optical system. a guide shaft support member; and a female screw member that is pivotally supported by the optical system support member and screwed into the male screw of the guide shaft, and fixes one of the guide shaft and the female screw member so as not to rotate; The optical system support member is moved in the optical axis direction by rotating the other with the driving force of the drive source, and by rotating one of the guide shaft and the female screw member before fixing the other, the drive source An optical system moving device characterized by comprising an optical system position adjustment mechanism that can move the optical system support member in the optical axis direction without depending on the optical system.