JPS58138921U

JPS58138921U - auto focus camera

Info

Publication number: JPS58138921U
Application number: JP3668582U
Authority: JP
Inventors: 暁前田
Original assignee: 三洋電機株式会社
Priority date: 1982-03-15
Filing date: 1982-03-15
Publication date: 1983-09-19

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 the drawing]

［図面はこの考案の自動焦点カメラの１実施例を：　　
示し、第１図は被写体距離と撮影レンズの位置と１　　
の関係説明図、第２図は計測レンズ系および領域□。１　　検知部の構成説明図、第３図は識別回路部のプロ
コ　　ツク結線図、第４図は機構の概要説明図、第５図
（は第４図のカムの形状説明図である。１・・・被写体、２・・・撮影レンズ、６・・・計測レ
ンズ系、８・・・領域検知部、９・・・識別回路部、２
４・・・ば、　　ね、２５・・・撮像管、２６・・・当
接部、２７・・・カム１、　２８・・・ロータリーソレ
ノイド、Ｃｘ、　Ｃｙ、　Ｃｚ・・・位１　置確定信号
、Ｆｘ、　Ｆｙ、　Ｆｚ−焦点領域、Ｓｘ、　Ｓｙ。：Ｓｚ・・・撮影レンズの位置。[The drawing shows one embodiment of the autofocus camera of this invention:
Figure 1 shows the subject distance, the position of the photographic lens, and 1.
Figure 2 shows the measurement lens system and area □. 1. An explanatory diagram of the configuration of the detection unit, Fig. 3 is a schematic diagram of the identification circuit, Fig. 4 is a schematic explanatory diagram of the mechanism, and Fig. 5 is an explanatory diagram of the shape of the cam in Fig. 4. ...Subject, 2...Photographing lens, 6...Measuring lens system, 8...Area detection section, 9...Identification circuit section, 2
4...Ba, Ne, 25...Camera tube, 26...Abutment part, 27...Cam 1, 28...Rotary solenoid, Cx, Cy, Cz...Position 1 Position confirmation signal , Fx, Fy, Fz - focal area, Sx, Sy. :Sz...Position of the photographing lens.

Claims

[Scope of utility model registration request]

a photographic lens that performs focus adjustment through translational movement and is biased in the direction of the imaging surface due to deflection; a measurement lens system that breaks the incident optical axis that intersects with the incident optical axis of the photographic lens;
Area detection comprising a plurality of light receiving elements provided at light receiving positions of the measuring lens system corresponding to each of a plurality of focal areas determined by dividing the field of the photographing lens based on the focal depth of the photographing lens. and an identification circuit unit which compares the detection signals of each of the light receiving elements and determines in which of the focal areas the subject is located, and a position determination signal for each of the focal areas outputted from the identification circuit unit. a rotating means to be controlled; a contact portion formed protruding from the photographic lens; and a contact portion attached to a rotation shaft of the rotation means and brought into contact with the photographic lens to bring the photographic lens into a focal region where the subject is located. An automatic focusing camera with a cam that moves to its original position.