JPS60110830U

JPS60110830U - Film sensitivity setting circuit

Info

Publication number: JPS60110830U
Application number: JP20161983U
Authority: JP
Inventors: 阿部　捷三
Original assignee: 京セラ株式会社
Priority date: 1983-12-28
Filing date: 1983-12-28
Publication date: 1985-07-27

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]

ｌｌａ図は本考案に用いられるパトローネの略図、第１
ｂ図はそのパトローネに設けられたフィルム感度を表わ
すバーコードの略図、第２ａ図は本考案に用いられるフ
ィルム感度ＩＳＯ値とそれに対応する電気シャッタ制御
回路へ情報挿入するためのＩＳＯ対応対応電圧色関係を
示すグラフ、第２ｂ図はそのＩＳＯ値とＩＳＯ対応対応
電圧色バーコードの関係を示す図、第３図は本考案を実
施するための具体的回路図である。１・・・・・・パトローネ、２・・・・・・外筒、３・
・・・・・バーコード、ＩＳＯ・・・・・・フィルム感
度値、Ｑ１〜Ｑ５・・・・・・検出スイッチ、ｖｌ・・
・・・・第１規定電圧端子、■２・・・・・・第２規定
電圧端子、Ｖ３・・・・・・第３規定電圧端子、Ｓ１〜
Ｓ５・・・・・・第１段目のスイッチ回路、Ｓ６・・・
・・・第２段目のスイッチ回路、Ｒ１−Ｒ５・・・・・
・抵抗、Ｖ。・・・・・・ＩＳＯ対応電圧。Figure lla is a schematic diagram of the cartridge used in this invention, the first
Figure b is a schematic diagram of the barcode indicating the film sensitivity provided on the cartridge, and Figure 2a is the film sensitivity ISO value used in this invention and the corresponding ISO corresponding voltage color for inserting information into the electric shutter control circuit. A graph showing the relationship, FIG. 2b is a diagram showing the relationship between the ISO value and the ISO corresponding voltage color barcode, and FIG. 3 is a specific circuit diagram for implementing the present invention. 1...Patrone, 2...Outer tube, 3.
... Barcode, ISO ... Film sensitivity value, Q1 to Q5 ... Detection switch, vl...
....First specified voltage terminal, ■2...Second specified voltage terminal, V3...Third specified voltage terminal, S1~
S5...First stage switch circuit, S6...
...Second stage switch circuit, R1-R5...
・Resistance, V. ...ISO compatible voltage.

Claims

[Scope of utility model registration request]

In an electric circuit that reads out a barcode indicating film sensitivity provided on a film cartridge as an electric signal, calculates it, and automatically inputs it to an analog electric shutter control circuit as film sensitivity information, multiple bits of 1 or 0 are used.
A weighted resistor is connected to each output terminal of the plurality of two-man power one-output switch circuits in the first stage, each of which switches an input terminal in response to an electrical signal from the barcode,
The other ends of these are connected at one point to output an ISO compatible voltage corresponding to the film sensitivity, and the relationship between the electrical signal from the barcode and the ISO compatible voltage corresponds to the upper bit in which the relationship is a regular binary code. A first specified voltage is supplied to each first input terminal of the switch circuit, and a second specified voltage is supplied to the first input terminal of the switch circuit corresponding to a lower bit not related to the regular binary code. a barcode system circuit configured such that a third specified voltage is supplied to all second input terminals of the switch circuit;
Input the ISO compatible voltage from the film sensitivity manual setting dial to the first input terminal, and
A second input terminal that inputs an SO compatible voltage to a second input terminal, outputs the first human power when the outputs of the electric signals from the barcodes are the same, and outputs the second human power in other cases.
A film sensitivity setting circuit characterized by comprising a dial system circuit comprising a two-stage manual one-output switch circuit.