JPS5935921U

JPS5935921U - Integrated circuit element connection circuit for cameras

Info

Publication number: JPS5935921U
Application number: JP9762983U
Authority: JP
Inventors: 恒川　十九一; 打土井　正憲; 雅美清水; 山道　雅義; 圭治村山; 相沢　紘
Original assignee: キヤノン株式会社
Priority date: 1983-06-23
Filing date: 1983-06-23
Publication date: 1984-03-06

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−ａ図、第１−ｂ図、第ｉ　−ｃ図は本考案を適用
すべき一眼レフカメラの構成図を示すもので第１−ａ図
はその正面図、第１ｂ図はその上面図、第１−ｃ図はそ
の断面図、第２図は第１図示カメラに組込まれる電気制
御回路ブロック図、第３図、第４図は第２図示回路をＩ
Ｃ化した本考案に係る制御回路図、第５図、第６図、第
７図は第３図、第４図示回路の要部電気回路図を夫々示
すものである。ｐｘ−１，ｐｘ−２，ｐｘ−３，ｐｘ、−４−−−−−
−集積回路要素、Ｔ□〜Ｔ１ｏ・・・・・・第１の集積
回路要素ｐｘ−１の制御端子、Ｑ□〜Ｑ１８・・・・・
・要素ｐｘ−２の制御端子、Ｖ□〜■１８・・・・・・
要素ｐｘ−３の制御端子、Ｈ１〜Ｈ３２・・・・・・要
素ｐｘ−４の制御端子、Ｐ・・・・・・測光素子。ＶＲｂ　２０１）　３ｂ　’ＳＩ　ＰＸ−Ｉ　Ｐ　１０
３１−−１　　　　　（ｊｔｌｌＪ＋／　　１　　＼　＼　Ｘ　　／Ｉ／ＩＩ’Ｓ／　Ｓ／、
５Ｊ２２７δｙｓｓ　、？　　ＰＦ４ムｈム２Ｄ３２ｕ
　　　２０ｓ　　　２ｏ？　　　　　　　　　２０７　
　２／６１　　１　　　Ａ　　　（１／ち　　Ｉ２２２
２２／　２１／　　　　　　　　　　　２１２ｒ−＝ｒ
　　　　　　　　　　　− １１Ｌ＃ｌ　　、　　ト；］、ｆに才１土・・Figures 1-a, 1-b, and 1-c show the configuration of a single-lens reflex camera to which the present invention is applied. Figure 1-a is a front view thereof, and Figure 1b is a top view thereof. 1-c is a sectional view thereof, FIG. 2 is a block diagram of an electric control circuit incorporated in the camera shown in the first illustration, and FIGS.
FIGS. 5, 6, and 7 are electrical circuit diagrams of the main parts of the circuits shown in FIGS. 3 and 4, respectively. px-1, px-2, px-3, px, -4---
- Integrated circuit elements, T□~T1o...Control terminals of first integrated circuit element px-1, Q□~Q18...
・Control terminal of element px-2, V□~■18...
Control terminal of element px-3, H1 to H32... Control terminal of element px-4, P... Photometric element. VRb 201) 3b 'SI PX-I P 10
31--1 (jtllJ+ / 1 \ \ X /I/II'S/ S/,
5J227δyss,? PF4muhm2D32u
20s 2o? 207
2/61 1 A (1/chi I222
22/ 21/ 212r-=r
- 11L#l, t; ], f to 1 soil...

Claims

[Scope of utility model registration request]

A first integrated circuit element for photometry that receives the light beam transmitted through the photographic lens and generates an electric signal, an exposure information setting circuit that sets exposure information, an output of the first integrated circuit element, and the exposure information setting circuit. a second integrated circuit element that performs exposure calculations with the output of the second integrated circuit element; a third integrated circuit element that controls an electromagnet that controls the exposure amount based on the output of the second integrated circuit element;
a power supply control circuit that controls power supply to the first, second, and third integrated circuit elements;
The feature is that power is supplied to the third integrated circuit element after the first and second integrated circuit elements are supplied via the power supply terminal of the third integrated circuit element, depending on the operating state of the camera. Integrated circuit element connection circuit for cameras.