JPH0430586Y2 - - Google Patents
Info
- Publication number
- JPH0430586Y2 JPH0430586Y2 JP1925385U JP1925385U JPH0430586Y2 JP H0430586 Y2 JPH0430586 Y2 JP H0430586Y2 JP 1925385 U JP1925385 U JP 1925385U JP 1925385 U JP1925385 U JP 1925385U JP H0430586 Y2 JPH0430586 Y2 JP H0430586Y2
- Authority
- JP
- Japan
- Prior art keywords
- camera
- automatic winding
- motor
- winding
- detection circuit
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 42
- 238000001514 detection method Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Details Of Cameras Including Film Mechanisms (AREA)
Description
【考案の詳細な説明】
技術分野
本考案は、フイルム巻上駆動回路を備えていて
自動巻上カメラと手巻上カメラの両方が装着可能
な光学機器の自動巻上カメラ検出回路に関するも
のである。[Detailed Description of the Invention] Technical Field The present invention relates to an automatic winding camera detection circuit for an optical device that is equipped with a film winding drive circuit and can be attached to both an automatic winding camera and a manual winding camera. .
従来技術
この種従来の光学機器において、装着されたカ
メラが自動巻上カメラか或は手巻上カメラかの検
出を行うための検出回路は、例えば第３図に示し
た如く構成されていて、モータ駆動電流をカメラ
取付マウント上のモータ駆動回路接点C1，C2を
介して自動巻上カメラ内のモータＭに流し、フイ
ルム巻上駆動回路Ｕの出力が「Ｌ」レベルで第４
図に示した如くモータＭに電流が流れた時にはダ
イオードD1，D2の順方向電圧２・VFが発生し、
この順方向電圧２・VFにより判別回路COPの出
力端子OUTの電位が「Ｌ」レベルに転換するの
で自動巻上カメラと判別し、又フイルム巻上駆動
回路Ｕの出力が「Ｈ」レベルでモータ駆動電流が
流れない時にはダイオードD1，D2による順方向
電圧は発生せず、判別回路COPの出力端子OUT
の電位が「Ｈ」レベルのままであるので手巻上カ
メラと判別するようになつていた。そのため、モ
ータ駆動電流の印加後でなければ自動巻上カメラ
か手巻上カメラかの検出ができず不便であり、又
検出回路自身もダイオードD1，D2や判別回路
COPを必要とするため構成が複雑で高価になる
という問題があつた。尚、R3，R4は抵抗、VMは
印加電圧である。Prior Art In this kind of conventional optical equipment, a detection circuit for detecting whether the attached camera is an automatic winding camera or a manual winding camera is configured as shown in FIG. 3, for example. The motor drive current is passed through the motor drive circuit contacts C 1 and C 2 on the camera mounting mount to the motor M in the automatic winding camera, and when the output of the film winding drive circuit U is at the "L" level, the fourth
As shown in the figure, when current flows through the motor M, a forward voltage of 2·V F is generated across the diodes D 1 and D 2 .
This forward voltage 2·V F changes the potential of the output terminal OUT of the discrimination circuit COP to the "L" level, so it is determined that it is an automatic winding camera, and the output of the film winding drive circuit U changes to the "H" level. When the motor drive current does not flow, no forward voltage is generated by the diodes D 1 and D 2 , and the output terminal OUT of the discrimination circuit COP
Since the potential of the camera remained at the "H" level, it was determined that it was a hand-wound camera. Therefore, it is inconvenient that it is not possible to detect whether the camera is an automatic winding camera or a manual winding camera until after the motor drive current is applied, and the detection circuit itself also requires diodes D 1 and D 2 and a discrimination circuit.
The problem was that the configuration was complicated and expensive because it required a COP. Note that R 3 and R 4 are resistances, and VM is an applied voltage.
目 的
本考案は、上記問題点に鑑み、モータ駆動電流
の印加前に自動巻上カメラか手巻上カメラかの検
出ができて便利であると共に、検出回路自身の構
成が簡単で安価である光学機器の自動巻上カメラ
検出回路を提供せんとするものである。Purpose In view of the above problems, the present invention is convenient because it can detect whether it is an automatic winding camera or a manual winding camera before applying the motor drive current, and the configuration of the detection circuit itself is simple and inexpensive. The present invention aims to provide an automatic winding camera detection circuit for optical equipment.
概 要
本考案による光学機器の自動巻上カメラ検出回
路は、カメラ取付マウント上のモータ駆動回路接
点とアースとの間に抵抗を接続し、自動巻上カメ
ラが装着された場合にカメラ内部のモータを経由
して常時微弱電流を流し、この微弱電流の有無を
検出して装着されたカメラが自動巻上カメラか手
動巻上カメラかを検出するようにしたものであ
る。Overview The automatic winding camera detection circuit for optical equipment according to the present invention connects a resistor between the motor drive circuit contact on the camera mounting mount and ground, and when the automatic winding camera is attached, the motor inside the camera is detected. A weak current is constantly passed through the camera, and the presence or absence of this weak current is detected to determine whether the attached camera is an automatic winding camera or a manual winding camera.
実施例
以下、第１図及び第２図に示した一実施例に基
づき上記従来例と同一の部材には同一符号を付し
て本考案を詳細に説明すれば、R1，R2はモータ
駆動回路接点C2とアースとの間に接続された直
列接続の抵抗であつて、両接点C1，C2とモータ
Ｍが接続されると抵抗R1，R2に電流が流れ、そ
の場合に両抵抗R1，R2の接続点ａに接続された
出力端子OUTに両抵抗の分圧比に応じた電圧レ
ベルが発生するようになつている。Embodiment Hereinafter, the present invention will be explained in detail based on an embodiment shown in FIGS. 1 and 2 , with the same members as in the conventional example described above being given the same reference numerals. A series-connected resistor connected between the drive circuit contact C 2 and the ground. When both contacts C 1 and C 2 are connected to the motor M, current flows through the resistors R 1 and R 2 . A voltage level corresponding to the voltage division ratio of both resistors is generated at the output terminal OUT connected to the connection point a of both resistors R 1 and R 2 .
本考案による光学機器の自動巻上カメラ検出回
路は上述の如く構成されているから、まずフイル
ム巻上駆動回路Ｕの作用について述べれば、フイ
ルム巻上駆動回路Ｕの出力「Ｈ」レベルの時は駆
動電流が流れないのでモータＭは回転せず、該出
力が「Ｌ」レベルの時は駆動電流が接点C1から
モータＭを経由して接点C2へ流れモータＭが回
転する。 Since the automatic winding camera detection circuit of the optical device according to the present invention is constructed as described above, firstly, the operation of the film winding drive circuit U will be described. When the output of the film winding drive circuit U is at the "H" level, Since the drive current does not flow, the motor M does not rotate, and when the output is at the "L" level, the drive current flows from the contact C1 to the contact C2 via the motor M, and the motor M rotates.
次に、自動巻上カメラが装着されているか否か
の検出について述べれば、自動巻上カメラが装着
された場合は、接点C1、モータＭ、接点C2を経
由して抵抗R1，R2に微弱電流が流れ、抵抗R1，
R2の分圧比に応じた電圧レベルが出力端子OUT
に発生する即ち出力端子OUTの電位は第２図に
示した如く「Ｈ」レベルとなる。又、自動巻上カ
メラが装着されず、手動巻上カメラが装着された
場合は、抵抗R1，R2には電流が流れず、出力端
子OUTの電位は第２図に示した如く「Ｌ」レベ
ルのままである。かくして、本考案による検出回
路によれば、自動巻上カメラの装着の有無に応じ
て出力端子OUTの電位が「Ｈ」レベルか「Ｌ」
レベルになるので、装着されたカメラが自動巻上
カメラか手巻上カメラかをモータ駆動電流の印加
前に検出することができる。 Next, regarding the detection of whether or not an automatic winding camera is attached, if an automatic winding camera is attached, a weak current flows through the resistors R1 and R2 via the contact C1 , the motor M , and the contact C2 .
The voltage level according to the voltage division ratio of R2 is output to the output terminal OUT
That is, the potential of the output terminal OUT becomes "H" level as shown in Fig. 2. Also, when the automatic winding camera is not installed and a manual winding camera is installed, no current flows through resistors R1 and R2 , and the potential of the output terminal OUT remains at "L" level as shown in Fig. 2. Thus, according to the detection circuit of this invention, the potential of the output terminal OUT becomes "H" level or "L" level depending on whether the automatic winding camera is installed or not.
This makes it possible to detect whether the attached camera is an automatic winding camera or a manual winding camera before the motor drive current is applied.
考案の効果
上述の如く、本考案による光学機器の自動巻上
カメラ検出回路は、装着されたカメラが自動巻上
カメラか手巻上カメラかをモータ駆動電流の印加
前に検出することができ便利である。又、これを
利用して、自動巻上カメラとインスタントフイル
ムカメラ等の異種類カメラとの判別も簡単にでき
る。又、検出回路自身は直列接続された抵抗R1，
R2のみから成るため、構成が極めて簡単で安価
である。又、従来の取付マウントのモータ駆動接
点にそのまま接続するだけで何ら構造変更を必要
としないので、コスト安である。Effects of the Invention As described above, the automatic winding camera detection circuit for optical equipment according to the present invention can conveniently detect whether the attached camera is an automatic winding camera or a manual winding camera before applying the motor drive current. It is. Also, by using this, it is possible to easily distinguish between automatic winding cameras and different types of cameras such as instant film cameras. In addition, the detection circuit itself consists of resistors R 1 and R 1 connected in series.
Since it consists only of R2 , the configuration is extremely simple and inexpensive. In addition, the cost is low because it is simply connected to the motor drive contact of a conventional mounting mount and does not require any structural changes.
第１図は本考案による自動巻上カメラ検出回路
の一実施例の回路図、第２図は上記実施例による
自動巻上カメラの装着の有無の検出タイミングを
示すフローチヤート、第３図は従来例の回路図、
第４図は上記従来例による自動巻上カメラの装着
の有無の検出タイミングを示すフローチヤートで
ある。
C1，C2……モータ駆動接点、Ｍ……モータ、
Ｕ……フイルム巻上駆動回路、R1，R2……抵抗、
ａ……接続点、OUT……出力端子、VM……印加
電圧。
Fig. 1 is a circuit diagram of an embodiment of an automatic winding camera detection circuit according to the present invention, Fig. 2 is a flowchart showing the timing of detecting whether or not an automatic winding camera is attached according to the above embodiment, and Fig. 3 is a conventional one. Example schematic,
FIG. 4 is a flowchart showing the timing of detecting whether the automatic winding camera is attached or not according to the conventional example. C 1 , C 2 ... Motor drive contact, M ... Motor,
U...Film winding drive circuit, R1 , R2 ...Resistor,
a... Connection point, OUT... Output terminal, V M ... Applied voltage.
Claims (1)
メラと手巻上カメラの両方が装着可能な光学機器
において、カメラ取付マウント上のモータ駆動回
路接点とアースとの間に抵抗を接続し、カメラ内
部のモータを経由して該抵抗を流れる微弱電流の
有無により自動巻上カメラの装着の有無を検出す
るようにしたことを特徴とする自動巻上カメラ検
出回路。 In optical equipment that is equipped with a film winding drive circuit and can be attached to both automatic winding cameras and manual winding cameras, a resistor is connected between the motor drive circuit contact on the camera mounting mount and ground, and An automatic winding camera detection circuit, characterized in that the presence or absence of an automatic winding camera is detected by the presence or absence of a weak current flowing through the resistor via the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1925385U JPH0430586Y2 (en) | 1985-02-14 | 1985-02-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1925385U JPH0430586Y2 (en) | 1985-02-14 | 1985-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61135333U JPS61135333U (en) | 1986-08-23 |
| JPH0430586Y2 true JPH0430586Y2 (en) | 1992-07-23 |
Family
ID=30508658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1925385U Expired JPH0430586Y2 (en) | 1985-02-14 | 1985-02-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0430586Y2 (en) |
-
1985
- 1985-02-14 JP JP1925385U patent/JPH0430586Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61135333U (en) | 1986-08-23 |
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