JPS60176430U

JPS60176430U - Film sensitivity automatic setting circuit

Info

Publication number: JPS60176430U
Application number: JP6450884U
Authority: JP
Inventors: 晴己小川
Original assignee: 日東光学株式会社
Priority date: 1984-05-01
Filing date: 1984-05-01
Publication date: 1985-11-22

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案によるフィルム感度自動設定回路の回路
図、第２図はフィルム感度情報コード付フィルムパトロ
ーネの斜視図、第３図はパトローネと検知手段との関係
を示す斜視図である。１・・・由フィルムパトローネ、２・・・・・・外壁、
計・・・・・フィルム感度コード情報、４・・・・・・
マガジン、６．７・・・・・・接点、９・・・・・・コ
ード変換回路、１ｏ・・・・・・シャッタ制御回路、１
１・・・・・・比較器、１２・・・・・・第１ゲート、
１５・・・・・・発光ダイオード、１６・・・・・・第
２ゲート、１８・・・・・・手動設定スイッチ、１９・
・・・・・第３ゲート。Ｖｒ＠＋一〇−［−一１１　　成FIG. 1 is a circuit diagram of an automatic film sensitivity setting circuit according to the present invention, FIG. 2 is a perspective view of a film cartridge with a film sensitivity information code, and FIG. 3 is a perspective view showing the relationship between the cartridge and detection means. 1...Yu film patrone, 2...Outer wall,
Total...Film sensitivity code information, 4...
Magazine, 6.7...Contact, 9...Code conversion circuit, 1o...Shutter control circuit, 1
1... Comparator, 12... First gate,
15... Light emitting diode, 16... Second gate, 18... Manual setting switch, 19...
...Third gate. Vr@+ 10-[-111

Claims

[Claims for Utility Model Registration] 1. A plurality of detection means for detecting film sensitivity information provided on a film cartridge, and a code conversion means for converting the film sensitivity information signal from the detection means to obtain a predetermined film sensitivity designation signal. In the film sensitivity automatic setting circuit which sends a film sensitivity designation signal to the shutter control means, the film sensitivity automatic setting circuit is provided for each of the detection means and detects that the film sensitivity information signal from each detection means is at a predetermined level. a first gate that is connected to the output of this comparator and outputs a detection failure signal when none of the comparators outputs a signal; The output of the first gate and the output of the code conversion means are inputted to a display that displays a warning by a signal, and the output is sent to the shutter control means, so that a detection failure from the first gate is detected. a second gate that prevents passage of the film sensitivity designation signal from the code conversion means by a signal; and a second gate connected to the output of the first gate and enabled by the detection failure signal, and sends the film sensitivity designation signal to the shirt control means. A circuit comprising a manually settable switch. 2 A third gate is connected between the output of the second gate and the shutter control circuit.
2. The circuit according to claim 1, further comprising a third gate, and an output terminal of a manually settable switch is connected to the other input of the third gate.