JPH02123925U - - Google Patents
Info
- Publication number
- JPH02123925U JPH02123925U JP3293489U JP3293489U JPH02123925U JP H02123925 U JPH02123925 U JP H02123925U JP 3293489 U JP3293489 U JP 3293489U JP 3293489 U JP3293489 U JP 3293489U JP H02123925 U JPH02123925 U JP H02123925U
- Authority
- JP
- Japan
- Prior art keywords
- input
- detection
- output
- output terminal
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 7
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Details Of Cameras Including Film Mechanisms (AREA)
Description
第１図は本考案の１実施例を示す回路図、第２
図及び第３図は第１図に示す実施例のタイムチヤ
ート、第４図は本考案の他の実施例を示す回路図
、第５図は第４図に示す実施例のタイムチヤート
、第６図は従来の回路例を示す回路図、第７図及
び第８図は第６図に示す回路のタイムチヤート。
２１……内部回路、２２……入出力端子、２３
……ＬＥＤ表示器、２４……抵抗、２５……メー
ク接点、２６……抵抗、２７……スイツチング手
段、２８……トランジスタ、３１……フリツプフ
ロツプ、３５……カウンタ。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing one embodiment of the present invention.
3 and 3 are time charts of the embodiment shown in FIG. 1, FIG. 4 is a circuit diagram showing another embodiment of the present invention, FIG. 5 is a time chart of the embodiment shown in FIG. 4, and FIG. The figure is a circuit diagram showing an example of a conventional circuit, and FIGS. 7 and 8 are time charts of the circuit shown in FIG. 6. 21... Internal circuit, 22... Input/output terminal, 23
...LED display, 24...Resistor, 25...Make contact, 26...Resistor, 27...Switching means, 28...Transistor, 31...Flip-flop, 35...Counter.
Claims (1)
ク接点とを順次直列接続し、 前記発光手段と分圧抵抗の相互接続点をＣＩ化
された内部回路の入出力端子と接続するとともに
、 前記入出力端子を電源ラインに接続するプルア
ツプ抵抗と、 前記入出力端子をグランドラインと導通させる
初期状態では遮断状態に置かれたスイツチング手
段と、 前記スイツチング手段の遮断状態における前記
メーク接点の作動による前記入出力端子のレベル
変動を検出する検出手段と、 該検出手段の検出出力を記憶する記憶手段と、 該記憶手段が前記検出手段の検出出力を記憶し
たことをよつて起動され、予設定の時間が経過し
たタイミングでレリーズ信号を発生するタイマ手
段とを各々備え、 少なくとも、前記記憶手段が前記検出手段の検
出出力を記憶してから前記タイマ手段がレリーズ
信号を発生するまでの期間において、前記スイツ
チング手段を導通させて、前記発光部を点灯させ
る様にしたことを特徴とするカメラ用セルフタイ
マ回路。[Claims for Utility Model Registration] A light emitting means, a voltage dividing resistor, and a make contact are connected in series between the power source and the ground, and the interconnection point between the light emitting means and the voltage dividing resistor is used as an input/output of an internal circuit that is made into a CI. a pull-up resistor that connects the input/output terminal to the power supply line and connects the input/output terminal to the power line; switching means that connects the input/output terminal to the ground line and is initially in a disconnected state; a detection means for detecting a level change of the input/output terminal due to the operation of the make contact; a storage means for storing the detection output of the detection means; and a storage means for storing the detection output of the detection means. and timer means that are activated and generate a release signal when a preset time has elapsed, and at least after the storage means stores the detection output of the detection means, the timer means generates the release signal. A self-timer circuit for a camera, characterized in that the switching means is made conductive to light up the light emitting section during the period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3293489U JPH0548191Y2 (en) | 1989-03-23 | 1989-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3293489U JPH0548191Y2 (en) | 1989-03-23 | 1989-03-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02123925U true JPH02123925U (en) | 1990-10-12 |
| JPH0548191Y2 JPH0548191Y2 (en) | 1993-12-21 |
Family
ID=31536217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3293489U Expired - Lifetime JPH0548191Y2 (en) | 1989-03-23 | 1989-03-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0548191Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04137335U (en) * | 1991-06-13 | 1992-12-21 | 旭光学工業株式会社 | Camera information display lighting device |
-
1989
- 1989-03-23 JP JP3293489U patent/JPH0548191Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04137335U (en) * | 1991-06-13 | 1992-12-21 | 旭光学工業株式会社 | Camera information display lighting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0548191Y2 (en) | 1993-12-21 |