KR940000913A

KR940000913A - Camera's automatic exposure control

Info

Publication number: KR940000913A
Application number: KR1019920010787A
Authority: KR
Inventors: 김창훈
Original assignee: 이헌조; 주식회사 금성사
Priority date: 1992-06-20
Filing date: 1992-06-20
Publication date: 1994-01-10

Abstract

본 발명은 중급용 카메라에서 자동 노출을 정확하게 제어하는 기술에 관한 것으로, 마그네트(2)로부터 동력을 전달받아 섹터(5), (6)의 개폐를 제어하는 레버 (4)의 일측 부위에 접편(10)을 설치함과 아울러, 그 접편(10)의 운동경로에 기판형 엔코더 (11)를 설치한후, 노광시 그 접편 (10)과 엔코더 (11)의 접촉에 의해 발생되는 논리치를 마이크로컴퓨터(1)에서 감지하여 조리개의 개폐정도를 파악할수 있게 한 것이다.The present invention relates to a technique for precisely controlling the automatic exposure in the intermediate camera, and receives the power from the magnet (2) to the side portion of the lever (4) for controlling the opening and closing of the sector (5), (6) 10) and the substrate-type encoder 11 in the movement path of the contact piece 10, the logic value generated by the contact between the contact piece 10 and the encoder 11 during exposure is microcomputer. Detected in (1) is to determine the opening and closing of the aperture.

Description

Camera's automatic exposure control

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 일반적인 카메라의 조리개 개폐장치의 개략도 및 마그네트론 구동을 위한 정전류 제어회로도,1 is a schematic diagram of a diaphragm opening and closing device of a general camera and a constant current control circuit diagram for driving a magnetron,

제2도는 일반적인 카메라에서 노광 제어용 마이크로컴퓨터의 내부 구성도,2 is an internal configuration diagram of a microcomputer for exposure control in a general camera;

제3도는 본 발명 카메라의 자동 노출 제어장치에 대한 구성도.3 is a block diagram of an automatic exposure control apparatus of the camera of the present invention.

Claims

A logic value determined by contact between the contact piece 10 and the encoder 11 formed on one side of the lever 4 which is moved according to the driving of the magnet 2 is sensed so as to determine the opening and closing degree of the aperture. Camera automatic exposure control.

2. The automatic exposure control apparatus for a camera according to claim 1, wherein the encoder (11) is installed at a position corresponding to the movement direction path of the contact piece (10) formed at one edge of the lever (4).

※ Note: The disclosure is based on the initial application.