JP3566985B2 - Continuous shooting camera - Google Patents

Description

【００４３】
１６コマを全部ワンショット撮影モードで撮影する場合には、レリーズ毎にステッピングモータ４９を所定角度だけ駆動させてゆき、１コマ目から４コマ目までの露光を行う。次に５コマ目から８コマ目までの露光は、レリーズ毎にステッピングモータ５０を所定角度ずつ駆動させて行う。また、９コマ目から１２コマ目までの露光は、ステッピングモータ４９を所定角度ずつ駆動させ、さらに、１３コマ目から１６コマ目までの露光は、ステッピングモータ５０を所定角度ずつ駆動させることによって行う。なお、このモードの際にも、各露光時間が、例えば１／２５０秒となるように、パルス間隔が段階的に設定されている。また、ステッピングモータ４９，５０の所定角度毎の停止は、各レリーズ毎のタイムラグを一定とするために、次の絞り開口とスリットとの角度が一定となる位置でシャッタ円板３２〜３７が停止するように制御される。
【００４４】
ワンショット撮影モードの次に連写撮影モードを選択した場合には、ワンショット撮影カウンタ９９のカウント値を読み出して、残りのコマ数に対しての露光間隔を決定する。この露光間隔は、前記表１に示したコマ間毎に定められた露光間隔と同じとなるように決められている。例えば、連写時間が低速に設定されている場合には、表２に示すようになる。
【００４５】
【表２】

【００４６】
なお、ワンショット撮影モードの次に連写撮影モードを選択した場合には、残りのコマ数に対して均等となるように露光間隔を設定してもよい。この場合には、以下の式によって露光間隔を決定する。
【００４７】
【数１】

【００４８】
この場合には、例えば、連写時間が低速に選択されていると、コマ間毎の露光間隔が表３に示すようになる。
【００４９】
【表３】

【００５０】
次に上記構成を備えた連写カメラの作用について説明する。シャッタユニット２２の初期状態は、図１７に示すように、シャッタ円板３２，３６，３４，３８のスリット３２ａ，３６ａ，３４ａ，３８ａが各軸４４，４０，４６，４２の中心を通る水平線上の左側に位置しており、また、シャッタ円板３３，３７，３５，３９のスリット３３ａ，３７ａ，３５ａ，３９ａが円周方向に１８０°ずれた位置の状態となっており、各絞り開口３１ａ〜３１ｐがシャッタ円板３２〜３９で遮蔽された状態となっている。また、シャッタ機構２３のスリット付きギヤ６５，６６とシャッタ機構２４のスリット付きギヤ６７，６８は、スリット６５ａ，６６ａ，６７ａ，６８ａが回転軸を通る垂直線の上方の位置で重なった状態で停止している。
【００５１】
切換え遮蔽板５７の初期状態は、図９に示すように、開口５７ａ〜５７ｄが絞り開口３１ａ〜３１ｄを露呈し、開口５１ｅ〜５１ｈが絞り開口３１ｉ〜３１ｌを遮蔽している。また、切換え遮蔽板５８の初期状態は、開口５８ａ〜５８ｄが絞り開口３１ｅ〜３１ｈを遮蔽し、開口５８ｅ〜５８ｄが絞り開口３１ｍ〜３１ｐを露呈している。
【００５２】
電源スイッチ１７をＯＮすると、連写時間が標準に選択され、液晶表示パネル１８の連写時間選択表示部１８ｃに「標準」の文字セグメントが表示される。その後、一定時間経過後に液晶表示パネル１８のシミュレーション表示部１８ｄに矩形セグメント１８ｅが標準の露光間隔毎に一つずつ表示される。
【００５３】
この表示の方法を詳しく説明する。図１８に示すように、ＣＰＵ１００が連写時間を標準に選択してから０．１秒後に上下２段、左右８列の矩形セグメント１８ｅのうち上段左側の矩形セグメント１８ｅを表示する。その０．０５秒後に上段左から２列目の矩形セグメント１８ｅを表示する。以下、０．０５秒毎に上段左から３列目、４列目と順に矩形なセグメントを順に表示してゆき、０．５５秒後には下段左側の矩形セグメント１８ｅを、そして、１秒後には下段右側の矩形セグメント１８ｅが表示され、これにより１６個の矩形セグメント１８ｅが全部表示されることになる。
【００５４】
撮影者は、このシミュレーション表示を見て連写撮影を行う前に標準での露光タイミングを簡単に把握することができる。そして、このシミュレーション表示は、１６個の矩形セグメント１８ｅが全部表示されてから一定時間経過後に消灯する。
【００５５】
撮影者は、スポーツをしている被写体の一連の動きを見て、被写体の動きをどのくらいの時間で写すのが適当なのか、また、シャッタレリーズのタイミングを何時行うかを見極める。そして、標準での露光タイミングでは適当ではない場合には、連写時間変更スイッチ１９を操作する。連写時間変更スイッチ１９は、押下操作を行う毎に連写時間選択表示部１８ｃに標準→高速→低速→標準の順に文字セグメントが表示されるから、この表示を確認しながら連写時間変更スイッチ１９を押下操作し、意図する連写時間に合わせる。
【００５６】
例えば、低速に合わせた場合には、ＣＰＵ１００が連写時間を低速に選択してから０．２秒後に上段左の矩形セグメント１８ｅを表示させ、その後は同図に示すように、低速の露光間隔と同じ間隔で矩形セグメント１８ｅを表示する。このシュミレーション表示は、１６個の矩形セグメント１８ｅを表示してから一定時間後に消灯するから、何回も露光タイミングを確認する際には、連写時間変更スイッチ１９を操作して再度低速に合わせることにより表示されるから、初心者であっても繰り返し確認することができる。
【００５７】
撮影は、図１９に示すように、被写体がテイクバックを行うと同時に連写用レリーズボタン１６を操作する。これにより、ステッピングモータ４９が駆動を開始し、図２０に示すように、モータギヤ５１が反時計方向に回転し、二段ギヤ５５を介してシャッタ円板３２，３３が時計方向に、またシャッタ円板３４，３５が反時計方向にそれぞれ同時に回転する。このときの回転は、露光時間とは異なった露光間隔となるようにステッピングモータ４９の駆動が制御される。そして、切換え遮蔽板５７の開口５７ａ〜５７ｄが絞り開口３１ａ〜３１ｄを露呈しているから、レリーズしてから２００ｍｓ後にシャッタ円板３２のスリット３２ａが絞り開口３１ａを横切り、コマ７４ａに１回目の露光が行われる。
【００５８】
このとき、切換え遮蔽板５７の開口５１ｅ〜５１ｈが絞り開口３１ｉ〜３１ｌを遮蔽しているから、これらの絞り開口３１ｉ〜３１ｌで露光が行われることはない。また、図２１に示すように、クランクギヤ５９が反時計方向に回転してるため、切換え遮蔽板５８が左方向に移動して開口５８ａ〜５８ｄで僅かに絞り開口３１ｅ〜３１ｈを露呈するが、シャッタ機構２４側のステピングモータ５０が駆動していないので、絞り開口３１ｅ〜３１ｈ、及び絞り開口３１ｍ〜３１ｐで露光が行われることはない。さらにこのとき、スリット付きギヤ６６は、シャッタ円板３２，３３，３６，３７の回転した角度に対して半角度の位置まで回転した状態となっており、さらに、スリット付きギヤ６５はシャッタ円板３２，３３，３６，３７の回転した角度に対して１．５倍の角度の位置まで回転した状態となっている。
【００５９】
１回目の露光が行われてから１００ｍｓ後にスリット３２ａが絞り開口３１ｂを横切りコマ７４ｂに２回目の露光を、またこれから１００ｍｓ後にシャッタ円板３３のスリット３３ａが絞り開口３１ｃを横切りコマ７４ｃに３回目の露光を、さらに、これから１００ｍｓ後にスリット３３ａが絞り開口３１ｄを横切りコマ７４ｄに４回目の露光を行う。
【００６０】
その後、カウンタの計数がシャッタ円板３２，３３，３６，３７の１回転分に達した時点で、図２２に示すようにステッピングモータ４９の駆動が停止される。このとき、スリット付きギヤ６６は、初期位置から半回転した状態となっており、また、スリット付きギヤ６５は初期位置から１．５回転した状態となっている。さらに、図２３に示すように、クランクギヤ５９が初期位置から１．５回転しているため、切換え遮蔽板５８の開口５８ａ〜５８ｄが絞り開口３１ｅ〜３１ｈを完全に露呈し、開口５８ｅ〜５８ｈが絞り開口３１ｍ〜３１ｐを完全に遮蔽した状態となっている。
【００６１】
図２４に示すように、ステッピングモータ４９の停止と略同時にステッピングモータ５０を駆動させる。モータギヤ５２が反時計方向に回転し、二段ギヤ５６を介してシャッタ円板３４，３５が時計方向に、またシャッタ円板３８，３９が反時計方向にそれぞれ同時に回転する。このときの回転も、露光時間とは異なった露光間隔となるようにステッピングモータ５０の駆動が制御される。そして、切換え遮蔽板５８の開口５８ａ〜５８ｄが絞り開口３１ｅ〜３１ｈを露呈しているから、４回目の露光から１００ｍｓ後にシャッタ円板３４のスリット３４ａが絞り開口３１ｅを横切り、コマ７５ａに５回目の露光が行われる。
【００６２】
５回目の露光が行われてから１００ｍｓ後にスリット３４ａが絞り開口３１ｆを横切りコマ７４ｂに６回目の露光を、またこれから１００ｍｓ後にシャッタ円板３３のスリット３３ａが絞り開口３１ｃを横切りコマ７４ｃに７回目の露光を、さらに、これから１００ｍｓ後にスリット３３ａが絞り開口３１ｄを横切りコマ７４ｄに８回目の露光を行う。
【００６３】
その後、カウンタの計数がシャッタ円板３４，３５，３８，３９の１回転分に達した時点で、図２５に示すように、ステッピングモータ５０の駆動が停止される。このとき、スリット付きギヤ６６は、初期位置から半回転した状態となっており、また、スリット付きギヤ６５は初期位置から１．５回転した状態となっている。さらに、図２６に示すように、クランクギヤ６０が初期位置から１．５回転しているため、切換え遮蔽板５７の開口５７ｅ〜５７ｈが絞り開口３１ｉ〜３１ｌを完全に露呈し、開口５７ａ〜５７ｄが絞り開口３１ａ〜３１ｄを完全に遮蔽した状態となっている。
【００６４】
ステッピングモータ５０の停止と略同時にステッピングモータ４９の駆動が開始される。これにより８回目の露光から１００ｍｓ後にシャッタ円板３６のスリット３６ａが絞り開口３１ｉを横切り、切換え遮蔽板５７の開口５７ｅ〜５７ｈが絞り開口３１ｉ〜３１ｌを露呈しているから、コマ７４ｅに９回目の露光が行われる。
【００６５】
９回目の露光が行われてから１００ｍｓ後にスリット３６ａが絞り開口３１ｊを横切りコマ７４ｆに１０回目の露光を、またこれから１００ｍｓ後にシャッタ円板３７のスリット３７ａが絞り開口３１ｋを横切りコマ７４ｇに１１回目の露光を、さらにこれから１００ｍｓ後にスリット３７ａが絞り開口３１ｌを横切りコマ７４ｈに１２回目の露光を行う。その後、シャッタ円板３２，３３，３６，３７が２回転に達した時点で、スリット付きギヤ６５が３回転、且つスリット付けギヤ６６が１回転しているため、互いのスリット６５ａ，６６ａが丁度初期位置で重なり、ＰＩセンサ６９から検出信号が得られる。これにより、ステッピングモータ４９の駆動が停止される。
【００６６】
このとき、クランクギヤ５９が初期位置から３回転しているため、切換え遮蔽板５８の開口５８ｅ〜５８ｈが絞り開口３１ｍ〜３１ｐを完全に露呈し、開口５８ａ〜５８ｄが絞り開口３１ｅ〜３１ｈを完全に遮蔽した状態となっている。
【００６７】
ステッピングモータ４９の停止と略同時にステッピングモータ５０を駆動させ、切換え遮蔽板５８の開口５８ｅ〜５８ｈが絞り開口３１ｍ〜３１ｐを露呈しているから、１２回目の露光から１００ｍｓ後にシャッタ円板３８のスリット３８ａが絞り開口３１ｍを横切り、コマ７５ｅに１３回目の露光が行われる。
【００６８】
そして、１３回目の露光が行われてから１００ｍｓ後にスリット３８ａが絞り開口３１ｎを横切りコマ７５ｆに１４回目の露光を、またこれから２００ｍｓ後にシャッタ円板３９のスリット３９ａが絞り開口３１ｏを横切りコマ７４ｇに１５回目の露光を、さらにこれから３００ｍｓ後にスリット３９ａが絞り開口３１ｐを横切りコマ７４ｈに１６回目の露光を行う。その後、シャッタ円板３４，３５，３８，３９が２回転に達した時点で、スリット付きギヤ６８が３回転、且つスリット付けギヤ６７が１回転しているため、互いのスリット６７ａ，６８ａが丁度初期位置で重なり、ＰＩセンサ７０から検出信号が得られる。これにより、ステッピングモータ５０の駆動が停止され、また、クランクギヤ６０が初期位置から３回転しているため、切換え遮蔽板５７の開口５７ａ〜５７ｄが絞り開口３１ａ〜３１ｄを完全に露呈した状態となっており、シャッタユニット２２の初期状態に戻る。
【００６９】
ＣＰＵ１００は、ＰＩセンサ６９、７０からそれぞれ検出信号が得られると、フイルム給送用のモータ８７ａを駆動させて写真フイルム８６を巻き上げ、ＰＩセンサ９４から得られるスリットの通過個数をカウントし、２画面分のカウント値に達した時点で、モータ８７ａの駆動を停止する。これにより、新たな２画面が各露光枠８１にセットされる。
【００７０】
次に、ワンショット撮影モードについて説明する。ワンショット撮影モードでの撮影は、ワンショット用レリーズボタン１５を操作することで行われる。このモードは、コマに露光する順番を連写撮影モード時と同じにしてコマ毎にレリーズ時の画像を露光する。したがって、ステッピングモータ４９，５０を所定角度毎に駆動させてレリーズ毎の画像を１コマずつ露光していくため、例えば、ゴルフスイングのうち撮影者の意図するタイミングで撮影する際には好適である。
【００７１】
例えば、ワンショット撮影モードで１６コマを撮影する場合には、先ず、１回目のレリーズでステッピングモータ４９を所定角度だけ駆動させる。これにより、スリット３２ａが絞り開口３１ａを横切って画面７４のコマ７４ａに露光が行われる。このときのステッピングモータ４９の停止制御は、図２７に示すように、初期状態から絞り開口３１ａまでの角度θと同じ角度となるように、絞り開口３１ｂから角度θの分だけ手前の位置でシャッタ円板３２が停止するように制御する。このように各露光後のシャッタ円板３２〜３９の停止位置を一定にすることによりタイムラグも一定となる。
【００７２】
その後、４回目までのレリーズではステッピングモータ４９を、また５〜８回目までのレリーズではステッピングモータ５０を、９〜１２回目までのレリーズではステッピングモータ４９を、そして１３〜１６回目までのレリーズではステッピングモータ５０を所定角度ずつ駆動してレリーズ毎の画像を各コマ７４ｂ〜７４ｈ，７５ａ〜７５ｈにそれぞれ露光する。
【００７３】
次に、ワンショット撮影を行った後に連写撮影を行う場合について説明する。図１９には、ワンショット撮影で最初の２コマに撮影を行った後、残りの１４コマに連写撮影を行ったケースを示している。ワンショット撮影を行った場合には、この回数が液晶表示パネル１８のシミュレーション表示部１８ｄに表示されている。この表示は、ワンショット撮影が２回行われているから、上段左から２個の矩形セグメント１８ｅが表示された状態となっている。
【００７４】
この時点で連写撮影が行われると、ＣＰＵ１００がワンショットカウンタ９９のカウント値から残りのコマに対する露光間隔を一義的に決定するため、撮影者は、その後の連写撮影を行う場合の露光タイミングがつかめなくなるケースがある。そこで、本実施例では、その後の連写撮影を行う際の露光タイミングをシミュレーション表示させることも可能としている。すなわち、ワンショット撮影を２回した後に連写時間変更スイッチ１９を操作して意図する連写時間に合わせると、これから一定時間経過後にシミュレーション表示部１８ｄに表示されたワンショット撮影回数を示す矩形セグメント１８ｅ以外の矩形セグメント１８ｅを表示させてシュミレーション表示を行う。
【００７５】
例えば、ワンショット撮影を２回行っているからシュミレーション表示部１８ｄには上段左とその右隣との２個の矩形セグメント１８ｅが表示されている。そしてシュミレーション表示は、図２８に示すように、上段左から３番目の矩形セグメント１８ｅが表示され、その後は表２に示したように残りコマ数が１４の場合の露光間隔と同じ間隔で矩形セグメント１８ｅが順に表示される。
【００７６】
このシュミレーション表示を確認した後に撮影者は、連写用レリーズボンタ１６を操作すると、例えば、連写時間が低速に選択されている場合には、図２９に示すように、シャッタ円板が回転して残りの１４コマに露光が行われる。
【００７７】
このように撮影を行ってゆき、２画面分のフイルム巻き上げを行う際にモータ８７ａに負荷がかかった場合には、これを検知してモータ８７ａを制御して写真フイルム８６を全部巻き戻し、露光済みの写真フイルム８６をパトローネ８８に収納する。裏蓋２１を開けてパトローネ８８を取り出し、これを現像所に提出する。現像所では、従来どおりの処理を行い、現像済みの写真フイルム８６から１画面毎に焼付けを行って８９×１５８ｍｍのハイビジョン比率のプリント写真を作製する。そして、得られた２枚のプリント写真を横に並べることにより、瞬間毎に被写体の動きが止まった１６コマの静止画像を観察することができる。
【００７８】
以上、説明した実施例では、連写時間変更スイッチ１９を操作して連写時間を選択すれば自動的にシュミレーション表示を行うようにしているが、本発明ではこれに限らず、連写時間変更スイッチ１９とは別にシュミレーション表示ボタンを設け、このシュミレーション表示ボタンを操作することによりシュミレーション表示を行うようにしてもよい。この場合には、操作し易くするために押しボタン式の連写時間変更スイッチ１９の代わりにダイヤル式の連写時間変更スイッチ１９にしてもよい。
【００７９】
また、本実施例では、液晶表示パネル１８に矩形なセグメントを順次に追加表示させてシュミレーション表示を行うようにしているが、この方法の代わりとしては、図３０に示すように、１個の矩形セグメント１８ｅを順次に移動させて行うようにしてもよい。また、１個のセグメントを露光間隔と同じ間隔で点滅表示させてシュミレーション表示を行うことも可能であり、この場合にはセグメント電極を少なくすることができるから液晶表示パネルのコストダウンが図れる。
【００８０】
さらに、液晶表示パネル１８にシュミレーション表示を行う他の例としては、円を１６分割した複数の扇形セグメントを順次に表示させるようにしてもよい。また、本実施例では、シュミレーション表示を非発光素子である液晶によって表示させているが、本発明ではこれに限らず、固体発光素子、例えばＬＥＤ、ＥＬ等を用いて表示させるようにしてもよい。
【００８１】
上記実施例では、シュミレーション表示を視覚を通じて撮影者に表示させているが、聴覚を通じて表示させることも可能である。この場合には、ブザーを設け、ブザー音を露光間隔と同じ間隔で発生させるようにしてもよい。また、視覚を通じた表示（例えば、液晶表示やＬＥＤ表示）とともにブザー音を鳴らすようにするのも効果的であり、さらに、このブザー音を鳴らすタイプの場合には、露光が行われることのないシュミレーションモード切換えボタンを設け、このシュミレーションモード時に連写用レリーズボタン１６をレリーズすることで露光間隔と同じ間隔でブザー音を鳴らすようにすると、ファインダーを覗いたままレリーズタイミングの練習が行える。
【００８２】
上記実施例の連写カメラでは、最初に連写撮影モードを選択すると２画面１６コマの全部に時系列的な画像が自動的に露光されるため、２画面１６コマのうちの複数コマ対して連写撮影を行った後に残りコマに対してワンショット撮影を行うことができないようになっているが、連写コマ数を設定する外部設定部材を設けることにより、２画面１６コマのうちの複数コマ対して連写撮影を行った後に残りコマに対してワンショット撮影を行うことも可能となる。この場合でもコマを指定した後の連写撮影時の露光タイミングも容易に表示することができることはいうまでもない。
【００８３】
また、上記実施例では、８枚のシャッタ円板を２つのステッピングモータで交互に回転させ、シャッタ円板にそれぞれ１つずつ設けたスリットで１６個のシャッタ開口をそれぞれ横切って２つの画面に１６コマの画像を露光するタイプの連写カメラに、ワンショット撮影モードを具備しているが、本発明ではこれに限らず、ワンショット撮影モードを具備可能な連写カメラとしては、例えば特開平４−２６９７２９号公報に提案されているように、２枚のシャッタ円板をステッピングモータで回転させ、シャッタ円板にそれぞれ２つずつ設けたスリットで水平に並んだ８個のシャッタ開口を順次に横切らせて２つの画面に８コマの画像を露光するタイプや、特回平２−１０５１２３２号公報に提案されているように、１枚のシャッタ円板をステッピングモータで回転させ、シャッタ円板に設けた１つのスリットで上下左右２列ずつに配置された４個のシャッタ開口をそれぞれ横切って１画面に４コマの画像を露光するタイプでもよい。
【００８４】
【発明の効果】
以上説明したように、本発明では、撮影者に視覚又は聴覚を通じて露光間隔を表示する外部表示部材を設けたから、連写撮影を行う前に露光タイミングを簡単に把握することでき、初心者であっても各スポーツの動きの中で運動初期から終期までの一連の動作を連写時間内に納めて撮影でき、失敗撮影の防止を図ることができる。
【００８５】
請求項２記載の発明では、別の機能を持ったスイッチに外部操作部材を兼用したから、例えば、専用の外部操作部材を設けたのと比較してコストダウンが図れる。請求項４記載の発明では、連写撮影とワンショット撮影とを択一的に選択して撮影が行える連写カメラの場合に、外部表示部材にワンショット撮影を行った回数の表示を兼用するようにしたから、例えば、専用のワンショット撮影を行った回数を表示する表示部材を設けたのと比較してコストダウンが図れる。
【図面の簡単な説明】
【図１】連写カメラの外観を示す斜視図である。
【図２】液晶表示パネルの全表示状態を示す平面図である。
【図３】シャッタユニットの分解斜視図である。
【図４】撮影レンズ及びシャッタ円板等の要部を示す分解斜視図である。
【図５】切換え遮蔽板及びステッピングモータ等の要部を示す分解斜視図である。
【図６】シャッタユニットの概略を示す説明図である。
【図７】シャッタ円板を駆動させる回転機構の概略を示す作用説明図である。
【図８】シャッタ機構の要部を示す斜視図である。
【図９】遮蔽板切換え機構の概略を示す作用説明図である。
【図１０】連写カメラの縦断面図である。
【図１１】連写カメラのフイルム巻上げ機構を示す概略説明図である。
【図１２】連写カメラの電機的構成の概略を示すブロック図である。
【図１３】シミュレーション表示プログラムの概略を示すフローチャート図である。
【図１４】連写カメラのシーケンスプログラムの概略を示すフローチャート図である。
【図１５】ステッピングモータに供給する駆動パルスのパルス間隔に対して露光時におけるシャッタ円板の回転の様子を示したタイミングチャート図である。
【図１６】連写時間を低速にして１６コマを連写撮影した際のシャッタ円板の回転の様子を示したタイミングチャート図である。
【図１７】回転機構及び初期位置検出機構の初期状態を示した作用説明図である。
【図１８】各連写時間の露光間隔に対してのシミュレーション表示を示す説明である。
【図１９】ゴルフスイングと露光間隔との関係を各撮影モード毎に示したタイミングチャート図である。
【図２０】１コマ目に露光を行った状態を示したシャッタユニットの作用説明図である。
【図２１】１コマ目に露光を行った際の遮蔽板切換え機構の作用説明図である。
【図２２】４コマ目の露光を行った状態を示したシャッタユニットの作用説明図である。
【図２３】４コマ目の露光を行った際の遮蔽板切換え機構の作用説明図である。
【図２４】５コマ目の露光を行った際のシャッタユニットの作用説明図である。
【図２５】８コマ目の露光を行った際のシャッタユニットの作用説明図である。
【図２６】８コマ目の露光を行った際の遮蔽板切換え機構の作用説明図である。
【図２７】ワンショット撮影時におけるシャッタ円板の停止位置を示した説明図である。
【図２８】ワンショット撮影を２回行った後のシミュレーション表示を示す説明図である。
【図２９】ワンショット撮影を２回行った後に、連写時間を低速にして残りの１４コマに連写撮影を行った場合のシャッタ円板の回転の様子を示したタイミングチャート図である。
【図３０】他の実施例のシミュレーション表示を示す説明図である。
【符号の説明】
１１ 連写カメラ
１５ ワンショット用レリーズボタン
１６ 連写用レリーズボタン
１８ 液晶表示パネル
１８ｃ 連写時間選択表示部
１８ｄ シミュレーション表示部
１９ 連写時間変更スイッチ
２２ シャッタユニット
２３，２４ シャッタ機構
１３ 撮影レンズ
３２〜３９ シャッタ円板
３１ 絞り開口
４９，５０ ステッピングモータ
５７，５８ 切換え遮蔽板
５９，６０ クランクギヤ
６５〜６８ スリット付きギヤ
６９，７０ ＰＩセンサ
７４，７５ 画面
７４ａ〜７４ｈ，７５ａ〜７５ｈ コマ[0001]
[Industrial applications]
The present invention relates to a continuous shooting camera that sequentially performs exposure at short time intervals by one release operation.
[0002]
[Prior art]
Conventionally, a continuous shooting camera has been proposed in Japanese Patent Application Laid-Open No. 4-269729. In this continuous shooting camera, two shutter disks are simultaneously rotated by a stepping motor, and two slits provided in each of the shutter disks are sequentially traversed through eight horizontally arranged shutter openings to form two screens. Eight frames of images are continuously exposed in a horizontal row. One frame has a size of about 13 × 8.3 mm, and one screen has a panorama size of 13 × 36 mm because both ends are slightly cut during printing. From the exposed photographic film, a panoramic print photograph of 89 × 254 mm is produced by printing every screen during the printing operation. Then, by observing the obtained two printed photographs side by side, a photographic image in which the movement of the subject stops every moment can be obtained, so that various kinds of motion analysis can be easily performed.
[0003]
By the way, in the continuous shooting camera described in the above-mentioned publication, the exposure time for the slit to cross the shutter opening is set to 1/250 sec or more in order to stop the movement of the subject in sports and shoot. Then, the microcomputer controls the stepping motor to intermittently rotate the shutter disk so as to have an exposure interval different from the exposure time, from the shutter release until the last exposure is completed.totalTo increase the continuous shooting time. Furthermore, in order to adapt to various sports movements, the exposure interval changing meansLow speed to set the total continuous shooting time from the shutter release to the completion of the exposure of the last frame to 2 seconds, low speed to 1 second, and ultra low speed to 3 seconds.Care is taken so that three types of continuous shooting time can be selected. To change the exposure interval, slide the externally provided slide lever.Low speed, standard, and ultra low speedCan be performed by adjusting each of the characters to the displayed position.
[0004]
[Problems to be solved by the invention]
However, with the continuous shooting camera described above,Low speed, standard, and ultra low speedIs only displayed, so the photographer can choose between threeofExposure timing could not be grasped by selecting one of them. For this reason, if it is appropriate to capture the movement of the subject in what time, and when to determine when to perform the shutter release timing, if you are not used to it a little, you can start from the beginning of the movement in the movement of each sport. It is not possible to put a series of actions until the end within the continuous shooting time and shoot it, or important points in the movement, for example, in golf, it may not be possible to obtain an image of the moment of impact during a swing, Any of the continuous photographs lacks power and results in dissatisfaction for those who are taken.
[0005]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems of the related art, and an object of the present invention is to provide a continuous shooting camera capable of easily grasping an exposure timing before performing continuous shooting. It is in.
[0006]
[Means for Solving the Problems]
In the continuous shooting camera of the present invention, an external operation member operated when knowing the exposure interval, an external display member that visually displays to a photographer, and the same interval as the exposure interval when the external operation member is operated And control means for controlling the external display member.
[0007]
[Action]
When the external operation member is operated, the control meansTo displayControl the external display member. This,VisualOr hearingThrough exposure timingA simulation can be displayed.As the external operation member, for example, a dedicated switch may be used, or a switch having another function may be used. For example, in the case where the shutter is also used as a continuous shooting time changing member for changing the total continuous shooting time from the shutter release to the exposure of the last frame.Alternatively, control may be performed such that the control unit automatically starts displaying the external display member in response to or after the operation of the continuous shooting time changing member.
[0008]
A liquid crystal display, an LED display, or the like is used as the external display member. As a method of displaying the exposure timing, a display area having the same number as the number of frames obtained by dividing one screen into a plurality is provided on the external display member, and the control means sequentially displays the display areas at the same interval as the exposure interval. The external display member may be controlled as described above. Each display area is, for example, in units of segments or dots in the case of liquid crystal display, and in units of one LED in the case of LED display. As a display method, a method of sequentially displaying the display areas, a method of moving one display area, and the like are preferable.
[0009]
In the case of a continuous shooting camera that can perform shooting by selectively selecting continuous shooting and one-shot shooting, the number of times of one-shot shooting may be displayed on an external display member. In this case,At the time of one-shot shooting, control is performed such that the number of display units corresponding to the number of times of one-shot shooting of the plurality of display units is displayed, and one screen is divided into a plurality of frames and remains after one-shot shooting. When continuous shooting is selected for unexposed frames, the remaining display units other than the display unit that displays the number of previous one-shot shootings are displayed in order in response to the operation of the external operation member Then, the external display member may be controlled so that the exposure interval at the time of continuous shooting is displayed by simulation.
[0010]
【Example】
As shown in FIG. 1, a total of 16 openings 12 a to 12 p are formed on the front surface of the continuous photographing camera 11, eight upper and lower stages, eight left and right, and each opening 12 a to 12 p is provided with a photographic lens 13 a to 13 p. Each is exposed. The finder objective window 14 is provided above the center of the upper opening rows 12i to 12p in order to reduce parallax. The aspect ratio is almost the same as that of the divided frame.
[0011]
On the upper surface of the continuous shooting camera 11, a one-shot release button 15, a continuous shooting release button 16, a power switch 17, a liquid crystal display panel 18, and a continuous shooting time change switch 19 are arranged. The one-shot release button 15 and the continuous-photograph release button 16 are juxtaposed to the part where the index finger of the right hand is hooked so that the pressing operation can be easily performed alternately. When the one-shot release button 15 is operated, shooting is performed in a one-shot shooting mode in which an image for each release is exposed for each frame. When the release button 16 for continuous shooting is operated, shooting in a continuous shooting mode for sequentially exposing a time-series image to a plurality of frames is performed.
[0012]
By photographing in these modes, for example, a photographing method of exposing an image for every release to all frames or photographing in a one-shot photographing mode twice, and then photographing in a continuous photographing mode to perform the remaining photographing A photographing method for sequentially exposing a time-series image to 14 frames can be selected. In the continuous shooting camera according to the embodiment, when shooting is first performed in the continuous shooting mode, a time-series image is automatically exposed to all 16 frames on two screens.
[0013]
The continuous shooting time change switch 19 is used to set the total continuous shooting time from the shutter release to the completion of the exposure of the last frame when the continuous shooting mode is selected.Low speed of 2 seconds, standard of 1 second, and high speed of 0.5 secondsIs set to any one of the three types, and is selected in the order of low speed, standard, and high speed each time the pressing operation is performed. Reference numeral 20 denotes a lever for opening the back cover 21, which is operated when a photo film is loaded.
[0014]
As the liquid crystal display panel 18, for example, a reflection type TN type liquid crystal display element is used. The liquid crystal display panel 18 includes a film counter display section 18a for displaying a film count by a segment electrode configuration, a film presence mark display section 18b, Shooting time selection display section 18c, andsimulationA display unit 18d is provided. In the continuous shooting time selection display section 18c, "low speed", "standard", and "high speed" character segments are displayed.simulationThe display section 18d is capable of displaying 16 rectangular segments 18e in a total of 16 rows and columns of 8 rows and 8 rows in the left and right directions, and at the same interval as the exposure interval corresponding to the continuous shooting time selected by the continuous shooting time change switch 19. The rectangular segments 18e are displayed one by one. Also,simulationThe display unit 18d displays the number of times of shooting in the one-shot shooting mode as the number of rectangular segments.
[0015]
FIG. 3 shows the shutter unit 22 of the continuous shooting camera 11. The shutter unit 22 has a configuration in which two shutter mechanisms 23 and 24 for eight continuous shootings for exposing eight frames obtained by dividing one screen into two rows vertically and four rows horizontally are arranged side by side. The parts areFront plate25, a partition plate 26 and a case 27 are incorporated in a thin shutter box.
[0016]
As shown in FIG. 4, in the front plate 25, 16 circular exposure openings 28a to 28p are formed on the optical axes of the photographing lenses 13a to 13p. On the front surfaces of these openings 28a to 28p, 16 photographing lenses 13a to 13p are incorporated one by one in a stepped portion. These photographing lenses 13 a to 13 p are fixed to the front plate 25 by two lens holders 29 and 30.
[0017]
The partition plate 26 has 16 aperture openings 31a to 31p formed on the optical axis of the photographing lenses 13a to 13p. These aperture openings 31a to 31p also serve as a fixed aperture and a shutter aperture, and all have the same inner diameter. The aperture openings 31a to 31d and 31i to 31l are shutter openings on the shutter mechanism 23 side, and the aperture openings 31e to 31h and 31m to 31p are shutter openings on the shutter mechanism 24 side.
[0018]
Eight shutter disks 32 to 39 having the same outer diameter and thickness are rotatably provided on the front surfaces of the aperture openings 31a to 31p. Of the shutter disks 32 to 39, the axes 40 to 43 of the four shutter disks 36, 37, 38, and 39 are above a horizontal line passing through the center of the eight aperture openings 31i to 31p arranged in the upper stage. , And at positions equidistant from the adjacent pair of aperture openings 31i to 31p, and eight aperture openings 31a in which the axes 44 to 47 of the four shutter disks 32 to 35 are arranged in the lower stage. 31 h to a position below the horizontal line passing through the center of 31 h and equidistant from the adjacent pair of aperture openings 31 a to 31 h. Of these shutter disks, four shutter disks 32, 33, 36, and 37 are shutter disks on the shutter mechanism 23 side, and four shutter disks 34, 35, 38, and 39 are shutter disks. This is a shutter disk on the mechanism 24 side.
[0019]
The shutter disks 32 to 39 have substantially fan-shaped openings (hereinafter, referred to as “slits”) 32 a, 33 a, on the circumference having a radius corresponding to the distance from each axis 40 to 47 to the aperture opening 31 a to 31 p. 34a, 35a, 36a, 37a, 38a, and 39a are formed one by one. The length of each of the slits 32a, 33a, 34a, 35a, 36a, 37a, 38a, and 39a (the length in the radial direction of the shutter disk) is equal to or larger than the inner diameter of each of the aperture openings 31a to 31p. Gears 32b, 33b, 34b, 35b, 36b, 37b, 38b, and 39b having the same number of teeth are formed on the outer circumferences of the shutter disks 32 to 39, and have the same rotation center in the vertical direction. The gear 32b and the gear 36b, the gears 33b and 37b, the gear 34b and the gear 38b, and the gears 35b and 39b mesh with each other.
[0020]
As shown in FIG. 5, 16 rectangular exposure openings 48a to 48p are formed on the optical axis of the photographing lenses 13a to 13p on the inner wall 27a of the case 27. Two openings 53 and 54 for inserting the motor gears 51 and 52 of the motors 49 and 50 are formed respectively. A rotation mechanism, a shield moving mechanism, and an initial position detection mechanism are incorporated into the inner wall 27a from the front. The rotation mechanism is a gear train for transmitting the rotation of the stepping motors 49 and 50 to the shutter disks 32 to 39, and includes two stepping motors 49 and 50, motor gears 51 and 52, and two-stage gears 55 and 56; It is composed of The stepping motors 49 and 50 respectively rotate the shutter disks 32 to 39 twice for 16 frames of exposure on two screens.
[0021]
The shielding plate moving mechanism transmits the rotations of the stepping motors 49 and 50 to the switching shielding plates 57 and 58 via a reciprocating sliding member rotating mechanism, and reciprocates the switching shielding plates 57 and 58 in the horizontal direction. The mechanism on the shutter mechanism 23 side includes a motor gear 51, a crank gear 59, and a switching shielding plate 58, and the mechanism on the shutter mechanism 24 side includes a motor gear 52, a crank gear 60, and a switching shielding plate 57. ing.
[0022]
The initial position detecting mechanism is a mechanism for detecting two rotations of the shutter disks 32 to 39. The mechanism on the shutter mechanism 23 side includes a motor gear 51, a two-stage gear 61, a gear 63, gears 65 and 66 with slits, and A photo interrupter (hereinafter, referred to as a “PI sensor”) 69 and a mechanism on the shutter mechanism 24 side include a motor gear 52, a two-stage gear 62, a gear 64, gears 67 and 68 with slits, and a PI sensor 70. It is configured. Note that a finder holding frame 71 is formed integrally with the case 27, and the objective lens 72 and the eyepiece 73 are incorporated in the finder holding frame 71.
[0023]
FIG. 6 schematically shows an arrangement of a rotation mechanism, a shield moving mechanism, and an initial position detection mechanism. As shown in detail in FIGS. 7 and 8, the rotation mechanism of the shutter mechanism 23 is such that the motor gear 51 meshes with the large gear 55a of the two-stage gear 55, and the small gear 55b of the two-stage gear 55 connects the shutter disks 36 and 37. Gears 36b, 37b. As a result, the rotation of the stepping motor 49 causes the slits 36a and 37a of the shutter disks 36 and 37 to sequentially traverse the four upper aperture openings 31i to 31l, respectively, so that the four frames 74e to 74h on the upper side of one screen 74 respectively. Exposure is performed, and at the same time, the slits 32a and 33a of the shutter disks 32 and 33 sequentially cross the four lower aperture openings 31a to 31d, respectively, and expose the lower four frames 74a to 74d of one screen 74 respectively. I do.
[0024]
The rotation mechanism of the other shutter mechanism 24 is arranged such that the rotation mechanism of the shutter mechanism 23 is symmetrical in the left and right directions. The rotation of the stepping motor 50 causes the slits 38a, 39a of the shutter disks 38, 39 to be rotated by the four upper stages. The eight frames 75a to which one screen 75 is divided by sequentially traversing the aperture openings 31m to 31p, and at the same time, the slits 34a and 35a of the shutter disks 34 and 35 sequentially traverse the four lower aperture openings 31e to 31h. Exposure is performed for each 75 h.
[0025]
As shown in FIG. 8 and FIG. 9, the shielding plate moving mechanism of the shutter mechanism 23 is such that the crank gear 59 meshes with the small gear 55b, and the crank gear 59 rotates with respect to two rotations of the shutter disks 32 to 39. The rotation ratio is three times. The crank gear 59 has a projecting pin 59a formed on the circumference. The switching shield plate 58 on the shutter mechanism 24 side is provided so as to be linearly movable in the left-right direction, and an arm 76 extending leftward is integrally formed with the switching shield plate 58. An elongated hole 76a extending in the vertical direction is formed on the distal end side of the arm 76, and the protruding pin 59a is engaged with the elongated hole 76a. Therefore, the length of the switching shield plate 58 is twice the length of the crank from the shaft 59b of the crank gear 59 to the protruding pin 59a.
[0026]
The switching shield plate 58 has four openings 58a-58d for simultaneously exposing the four lower aperture rows 31e-31h on the lower stage of the shutter mechanism 24 and four apertures 31m-31p for simultaneously exposing the four upper aperture columns 31m-31p. The openings 58e to 58h are formed so as to be shifted in the horizontal direction by twice the length of the crank, and the throttle openings 31e to 31h on the lower stage and the throttle openings 31m on the upper stage are arranged every half rotation of the crank gear 59. To 31p.
[0027]
The shielding plate moving mechanism of the shutter mechanism 24 is also arranged so that the shielding plate moving mechanism of the shutter mechanism 23 is bilaterally symmetric, and the protruding pin 60 a of the crank gear 60 is engaged with the elongated hole 77 a of the arm 77 of the switching shielding plate 57. The opening row 57a at the lower side of the switching shield plate 57 is switched every half rotation of the crank gear 60.57dAnd the upper row of apertures 57d to 57h selectively shields one of the lower four aperture rows 31a to 31d and the upper four aperture rows 31i to 31l of the shutter mechanism 23. .
[0028]
The initial position detection mechanism of the shutter mechanism 23 sets the two slit gears 65 and 66 at different rotation ratios to detect the deviation of the shutter disks 32, 33, 36 and 37 up to the minute angle. The PI sensor 69 detects the overlap between the slits 65a and 66a at one upper position. The rotation of the gear 66 with one slit is transmitted from the small gear 55b via the large gear 61a of the two-stage gear 61 and the small gear 61b of the two-stage gear 61, so that one rotation is provided for two rotations of the shutter disks 32 to 37. It is a rotation ratio to rotate. The rotation of the other slit gear 65 is transmitted from the shutter disk 36 via the gear 63, and has a rotation ratio of three rotations with respect to two rotations of the shutter disks 32 to 37. These gears with slits 65 and 66 are rotatably supported coaxially, and their rotations are opposite to each other.
[0029]
The initial position detecting mechanism of the shutter mechanism 24 is also arranged symmetrically with respect to the initial position detecting mechanism of the shutter mechanism 23. In order to detect even a slight angle shift of the shutter disks 34, 35, 38, and 39, the initial position detecting mechanism is set to two positions. The PI sensor 69 detects the overlap of the slits 65a and 66a with the rotation ratio of the gears 67 and 68 having a slit of 3: 1.
[0030]
Such a shutter unit 22 is attached to the front of a dark box 80 formed in the inner view of the continuous shooting camera 11, as shown in FIG. In the dark box 80, there are formed 16 exposure frames 81 which are divided into upper and lower two stages and left and right eight columns by a partition wall for each optical axis of the photographing lenses 13a to 13p. Configure the screen. The exposure frame 81 has a size of, for example, about 10 × 8.3 mm, and its periphery is slightly cut during printing, so that one screen has a size of 20 × 36 mm.
[0031]
As shown in FIG. 11, a patrone loading chamber 84 and a film winding chamber 85 are arranged on the left and right sides of the dark box 80. The photographic film 86 is wound up by rotation of a spool 87 provided in a film winding chamber 85, and is pulled out from a patrone 88 loaded in a patrone loading chamber 84. The spool 87 has a built-in motor 87a for winding up the film. When the film is wound up, the spool 87 is rotated via an internal gear. The rewinding fork 91 provided inside is rotated in the reverse direction.
[0032]
A sprocket 92 is engaged with the film perforation 86a, and is rotated by feeding the film. The sprocket 92 is coaxially fixed with a through-hole slit plate 93 provided with a large number of through-hole slits radially. The through hole slit plate 93 is photoelectrically detected by the PI sensor 94. The PI sensor 94 sends a pulse each time the through-hole slit passes.
[0033]
FIG. 12 shows a circuit configuration of the continuous shooting camera 11. The shutter unit 22 and the feeding of the photographic film are controlled by the CPU 100, and these sequences are written in the program ROM 101. In the photo film feeding sequence, when the open / close signal 102 of the back cover 21 is obtained after the power switch 17 is turned on, a drive signal of the motor 87a is sent to the motor driver 103. After that, when the PI sensor 94 has obtained the count of the through-hole slits corresponding to two screens, a stop signal for stopping the driving of the motor 87a is sent to the motor driver 103.
[0034]
The motor drivers 104 and 105 receive a control signal and a clock pulse from the CPU 100 and supply drive pulses to the stepping motors 49 and 50, respectively. As is well known, the stepping motors 49 and 50 rotate in proportion to the number of supplied drive pulses, so that the rotation angle can be determined by the number of drive pulses, and the pulse is changed by changing the drive pulse to a frequency. By changing the interval, the speed of rotation can be controlled.
[0035]
The number of drive pulses supplied from the motor drivers 104 and 105 to the stepping motors 49 and 50 is counted by a counter built in the motor drivers 104 and 105. Then, the CPU 100 monitors the count of the counter, and sends a control signal to the motor drivers 104 and 105 each time the count reaches a predetermined value. The motor drivers 104 and 105 change the frequency and the number of driving pulses supplied to the stepping motors 49 and 50 according to the control signal, and control the speed and the rotation direction of the stepping motors 49 and 50. The count value is updated and written in the one-shot shooting counter 99 every time the CPU 100 performs one-shot shooting. The CPU 100 reads the count value of the counter 99 as necessary, and uses the count value of the rectangular segment 18e for determining the exposure interval when performing the continuous shooting after performing the one-shot shooting. By numbersimulationThe display is controlled to be displayed on the display unit 18d.
[0036]
When detecting two rotations of the shutter disks 32 to 37, the PI sensors 69 and 70 send detection signals to the CPU 100. The CPU 100 monitors detection signals from the PI sensors 69 and 70, and controls to stop driving the stepping motors 49 and 50 when the detection signals are obtained. At this time, the counters of the motor drivers 104 and 105 are reset, and then the film winding process is performed.
[0037]
The CPU 100 has a built-in driver for driving the liquid crystal display panel 18 in a matrix system, and controls to display the segments of the film presence mark display section 18b when a photo film is loaded. Each time the continuous shooting time change switch 19 is operated, the character segments of the continuous shooting time selection display section 18c are displayed in order. As shown in FIG. 13, when the power switch 17 is turned on, the CPU 100 controls the continuous shooting time to be standard, and controls to display the “standard” character segment on the continuous shooting time selection display section 18 c. After a certain period of time has passed since the power switch 17 was turned on, at the same interval as the standard exposure intervalsimulationThe display unit 18d is controlled so as to sequentially drive the rectangular segments 18e. Further, the time from the selection operation by the continuous shooting time change switch 19 until the next selection operation is performed is monitored, and if the next operation is not performed after a lapse of a predetermined time, the last selection is performed. At the same interval as the exposure interval of the continuous shooting timesimulationThe display unit 18d is controlled so as to sequentially drive the rectangular segments 18e.
[0038]
The shooting sequence differs between the continuous shooting mode and the one-shot shooting mode, as shown in FIG. First, when the continuous shooting mode is selected, the stepping motors 49 and 50 are alternately driven every one rotation of the shutter disks 32 to 39 in order to expose time-series images on 16 frames on two screens. Let it. That is, first, only the stepping motor 49 is driven, and when the count of the counter reaches one rotation of the shutter disks 32, 33, 36, and 37, the driving of the stepping motor 49 is stopped. During this time, only the four frames 74a to 74d are sequentially exposed by the operation of the switching shielding plate 57.
[0039]
Next, substantially simultaneously with the stop, the stepping motor 50 is driven, and when the count of the counter reaches one rotation of the shutter disks 34, 35, 38, and 39, the driving of the stepping motor 50 is stopped. During this time, the exposure is sequentially performed on the four frames 75a to 75d by the operation of the switching shield plate 58. Further, substantially simultaneously with the stop, only the stepping motor 49 is driven, and when the detection signal is obtained from the PI sensor 69, the driving of the stepping motor 49 is stopped. During this time, exposure is performed on the four frames 74e to 74h by the action of the switching shielding plate 57. Lastly, the stepping motor 50 is driven almost simultaneously with the stop, and when the detection signal is obtained from the PI sensor 70, the driving of the stepping motor 50 is stopped. During this time, the exposure is sequentially performed on the four frames 75e to 75h by the operation of the switching shielding plate 58.
[0040]
In driving the stepping motors 49 and 50, the pulse interval is controlled stepwise so that each exposure time is, for example, 1/250 second, and is rotated at a high speed only at the moment of exposure. That is, since the rotational positions of the shutter disks 32 to 39 when the slits 32a to 39a cross the aperture openings 31a to 31p are known, the motor drivers 104 and 105 gradually increase the frequency immediately before each exposure. Are transmitted to the stepping motors 49 and 50 to increase the rotation of the stepping motors 49 and 50, that is, drive pulses whose pulse intervals gradually become shorter as T1, T2 and T3 as shown in FIG. Immediately after the exposure, drive pulses whose pulse intervals gradually increase to T3, T2, and T1 are sent to the stepping motors 49 and 50, and the rotation of the stepping motors 49 and 50 is reduced. Each exposure interval is longer than the exposure time by applying a drive pulse having a relatively long pulse interval.
[0041]
The exposure interval varies depending on the continuous shooting time as shown in Table 1, and differs between frames for each continuous shooting time. Then, for example, when the continuous shooting time is set to a low speed, as shown in FIG. 16, the shutter disks 32 to 39 rotate to expose a time-series image to 16 frames.
[0042]
[Table 1]

[0043]
When all 16 frames are photographed in the one-shot photographing mode, the stepping motor 49 is driven by a predetermined angle for each release, and the exposure from the first frame to the fourth frame is performed. Next, the exposure from the fifth frame to the eighth frame is performed by driving the stepping motor 50 by a predetermined angle for each release. The exposure from the ninth frame to the twelfth frame is performed by driving the stepping motor 49 by a predetermined angle, and the exposure from the thirteenth frame to the sixteenth frame is performed by driving the stepping motor 50 by a predetermined angle. . Also in this mode, the pulse interval is set stepwise so that each exposure time is, for example, 1/250 second. Further, the stop of the stepping motors 49 and 50 at predetermined angles stops the shutter disks 32 to 37 at a position where the angle between the next aperture opening and the slit becomes constant in order to keep the time lag for each release constant. Is controlled to
[0044]
When the continuous shooting mode is selected next to the one-shot shooting mode, the count value of the one-shot shooting counter 99 is read, and the exposure interval for the remaining number of frames is determined. The exposure interval is determined to be the same as the exposure interval defined for each frame shown in Table 1 above. For example, when the continuous shooting time is set to a low speed, the result is as shown in Table 2.
[0045]
[Table 2]

[0046]
When the continuous shooting mode is selected after the one-shot shooting mode, the exposure interval may be set so as to be equal to the number of remaining frames. In this case, the exposure interval is determined by the following equation.
[0047]
(Equation 1)

[0048]
In this case, for example, if the continuous shooting time is selected to be low, the exposure interval for each frame is as shown in Table 3.
[0049]
[Table 3]

[0050]
Next, the operation of the continuous shooting camera having the above configuration will be described. As shown in FIG. 17, the initial state of the shutter unit 22 is such that the slits 32a, 36a, 34a, 38a of the shutter disks 32, 36, 34, 38 are on horizontal lines passing through the centers of the axes 44, 40, 46, 42. , And the slits 33a, 37a, 35a, 39a of the shutter disks 33, 37, 35, 39 are in a state of being shifted by 180 ° in the circumferential direction, and each of the aperture openings 31a. To 31p are shielded by shutter disks 32 to 39. The slit gears 65, 66 of the shutter mechanism 23 and the slit gears 67, 68 of the shutter mechanism 24 stop in a state where the slits 65a, 66a, 67a, 68a overlap at a position above a vertical line passing through the rotation axis. are doing.
[0051]
In the initial state of the switching shielding plate 57, as shown in FIG. 9, the openings 57a to 57d expose the aperture openings 31a to 31d, and the openings 51e to 51h shield the aperture openings 31i to 31l. In the initial state of the switching shielding plate 58, the openings 58a to 58d shield the aperture openings 31e to 31h, and the openings 58e to 58d expose the aperture openings 31m to 31p.
[0052]
When the power switch 17 is turned on, the continuous shooting time is selected as the standard, and the "standard" character segment is displayed on the continuous shooting time selection display section 18c of the liquid crystal display panel 18. Thereafter, after a certain period of time, the liquid crystal display panel 18simulationOne rectangular segment 18e is displayed on the display unit 18d at each standard exposure interval.
[0053]
This display method will be described in detail. As shown in FIG. 18, 0.1 second after the CPU 100 selects the continuous shooting time as a standard, the upper left rectangular segment 18 e of the upper and lower eight rows and eight columns of rectangular segments 18 e is displayed. 0.05 seconds after that, the rectangular segment 18e in the second column from the upper left is displayed. In the following, rectangular segments are displayed in order from the upper left to the third and fourth columns every 0.05 seconds, the lower left rectangular segment 18e is displayed 0.55 seconds later, and 1 second later. The lower right rectangular segment 18e is displayed, whereby all 16 rectangular segments 18e are displayed.
[0054]
The photographersimulationIt is easy to grasp the standard exposure timing before performing continuous shooting by looking at the displayButit can. And thissimulationThe display is turned off after a certain period of time has elapsed since the display of all 16 rectangular segments 18e.
[0055]
The photographer looks at a series of movements of the subject in sports and determines how long it is appropriate to capture the movement of the subject and when to perform the shutter release timing. If the standard exposure timing is not appropriate, the continuous shooting time change switch 19 is operated. The continuous shooting time change switch 19 displays the character segment in the order of standard → high speed → low speed → standard on the continuous shooting time selection display section 18c every time the pressing operation is performed. 19 is pressed down to match the intended continuous shooting time.
[0056]
For example, when the speed is set to a low speed, the upper left rectangular segment 18e is displayed 0.2 seconds after the CPU 100 selects the continuous shooting time at a low speed, and thereafter, as shown in FIG. The rectangular segments 18e are displayed at the same intervals as. In this simulation display, the display is turned off after a certain period of time has elapsed since the display of the 16 rectangular segments 18e. Therefore, when the exposure timing is to be checked many times, the continuous shooting time change switch 19 must be operated to adjust the speed again. Is displayed, even a beginner can repeatedly check.
[0057]
In shooting, as shown in FIG. 19, the subject performs takeback and simultaneously operates the continuous shooting release button 16. As a result, the stepping motor 49 starts driving, as shown in FIG. 20, the motor gear 51 rotates counterclockwise, and the shutter disks 32 and 33 rotate clockwise through the two-stage gear 55, and the shutter disk rotates. The plates 34 and 35 rotate simultaneously in the counterclockwise direction. At this time, the driving of the stepping motor 49 is controlled so that the rotation is performed at an exposure interval different from the exposure time. Since the openings 57a to 57d of the switching shielding plate 57 expose the aperture openings 31a to 31d, 200 ms after the release, the slit 32a of the shutter disk 32 crosses the aperture opening 31a, and the first time in the top 74a. Exposure is performed.
[0058]
At this time, since the openings 51e to 51h of the switching shielding plate 57 shield the aperture openings 31i to 31l, exposure is not performed at these aperture openings 31i to 31l. Further, as shown in FIG. 21, since the crank gear 59 rotates counterclockwise, the switching shielding plate 58 moves to the left to slightly expose the aperture openings 31 e to 31 h at the openings 58 a to 58 d. Since the stepping motor 50 on the side of the shutter mechanism 24 is not driven, exposure is not performed at the aperture openings 31e to 31h and the aperture openings 31m to 31p. Further, at this time, the slit gear 66 has been rotated to a position at a half angle with respect to the rotation angle of the shutter disks 32, 33, 36, and 37. It is in a state where it has been rotated to a position which is 1.5 times the angle of rotation of 32, 33, 36, 37.
[0059]
100 ms after the first exposure, the slit 32a crosses the aperture opening 31b and the frame 74b performs the second exposure, and 100 ms after that, the slit 33a of the shutter disk 33 crosses the aperture opening 31c and performs the third exposure on the frame 74c. After 100 ms, the slit 33a crosses the aperture opening 31d and performs a fourth exposure on the frame 74d.
[0060]
Thereafter, when the count of the counter reaches one rotation of the shutter disks 32, 33, 36, and 37, the driving of the stepping motor 49 is stopped as shown in FIG. At this time, the slit gear 66 is in a state of being rotated half a turn from the initial position, and the slit gear 65 is in a state of being rotated 1.5 times from the initial position. Further, as shown in FIG. 23, since the crank gear 59 has rotated 1.5 times from the initial position, the openings 58a to 58d of the switching shielding plate 58 completely expose the aperture openings 31e to 31h, and the openings 58e to 58h. Are in a state where the aperture openings 31m to 31p are completely shielded.
[0061]
As shown in FIG. 24, the stepping motor 50 is driven almost simultaneously with the stop of the stepping motor 49. The motor gear 52 rotates counterclockwise, and the shutter disks 34 and 35 rotate simultaneously and the shutter disks 38 and 39 simultaneously rotate counterclockwise via the two-stage gear 56. The driving of the stepping motor 50 is controlled so that the rotation at this time also has an exposure interval different from the exposure time. Since the apertures 58a to 58d of the switching shielding plate 58 expose the aperture openings 31e to 31h, the slit 34a of the shutter disk 34 traverses the aperture opening 31e 100 ms after the fourth exposure, and the fifth time to the top 75a. Is performed.
[0062]
100 ms after the fifth exposure, the slit 34a crosses the aperture opening 31f and performs the sixth exposure on the frame 74b. After 100 ms, the slit 33a of the shutter disk 33 crosses the aperture opening 31c and performs the seventh exposure on the frame 74c. After 100 ms from this, the slit 33a crosses the aperture opening 31d and performs an eighth exposure on the frame 74d.
[0063]
Thereafter, when the count of the counter reaches one rotation of the shutter disks 34, 35, 38, and 39, the driving of the stepping motor 50 is stopped as shown in FIG. At this time, the slit gear 66 is in a state of being rotated half a turn from the initial position, and the slit gear 65 is in a state of being rotated 1.5 times from the initial position. Further, as shown in FIG. 26, since the crank gear 60 has rotated 1.5 times from the initial position, the openings 57e to 57h of the switching shielding plate 57 completely expose the aperture openings 31i to 31l, and the openings 57a to 57d. Are in a state where the aperture openings 31a to 31d are completely shielded.
[0064]
Drive of the stepping motor 49 is started substantially simultaneously with the stop of the stepping motor 50. 100 ms after the eighth exposure, the slit 36a of the shutter disk 36 crosses the aperture opening 31i, and the openings 57e to 57h of the switching shielding plate 57 expose the aperture openings 31i to 31l. Is performed.
[0065]
100 ms after the ninth exposure, the slit 36a crosses the aperture opening 31j and performs the 10th exposure on the frame 74f. After 100 ms, the slit 37a of the shutter disk 37 crosses the aperture opening 31k and performs the 11th exposure on the frame 74g. After a further 100 ms, the slit 37a crosses the aperture opening 31l and performs a twelfth exposure on the frame 74h. After that, when the shutter disks 32, 33, 36, and 37 have reached two rotations, the slit gear 65 has rotated three times and the slit gear 66 has rotated one rotation. The overlap occurs at the initial position, and a detection signal is obtained from the PI sensor 69. Thus, the driving of the stepping motor 49 is stopped.
[0066]
At this time, since the crank gear 59 has been rotated three times from the initial position, the openings 58e to 58h of the switching shield plate 58 completely expose the aperture openings 31m to 31p, and the openings 58a to 58d completely open the aperture openings 31e to 31h. It is in a state of being shielded.
[0067]
Almost simultaneously with the stop of the stepping motor 49, the stepping motor 50 is driven, and the openings 58e to 58h of the switching shielding plate 58 expose the aperture openings 31m to 31p. Therefore, the slit of the shutter disk 38 100 ms after the twelfth exposure. 38a crosses the aperture opening 31m, and the frame 75e is subjected to the thirteenth exposure.
[0068]
100 ms after the 13th exposure, the slit 38a crosses the aperture opening 31n and the frame 75f performs the 14th exposure, and 200 ms later, the slit 39a of the shutter disk 39 crosses the aperture opening 31o to form a frame 74g. The fifteenth exposure is performed, and after a lapse of 300 ms, the slit 39a crosses the aperture 31p and the sixteenth exposure is performed on the frame 74h. Thereafter, when the shutter disks 34, 35, 38, and 39 reach two rotations, the slit gear 68 has rotated three times and the slit gear 67 has rotated one rotation. The overlap occurs at the initial position, and a detection signal is obtained from the PI sensor 70. As a result, the drive of the stepping motor 50 is stopped, and the openings 57a to 57d of the switching shielding plate 57 completely expose the aperture openings 31a to 31d because the crank gear 60 has rotated three times from the initial position. And the shutter unit 22 returns to the initial state.
[0069]
When the detection signal is obtained from each of the PI sensors 69 and 70, the CPU 100 drives the film feeding motor 87a to wind up the photographic film 86, counts the number of slits obtained from the PI sensor 94, and counts two screens. When the minute count value is reached, the drive of the motor 87a is stopped. Thus, two new screens are set in each exposure frame 81.
[0070]
Next, the one-shot shooting mode will be described. Shooting in the one-shot shooting mode is performed by operating the one-shot release button 15. In this mode, the sequence of exposing frames is the same as in the continuous shooting mode, and an image at the time of release is exposed for each frame. Accordingly, since the stepping motors 49 and 50 are driven at predetermined angles to expose the image for each release one frame at a time, it is suitable, for example, when shooting at a timing intended by the photographer during a golf swing. .
[0071]
For example, when shooting 16 frames in the one-shot shooting mode, first, the stepping motor 49 is driven by a predetermined angle in the first release. Thereby, the slit 32a crosses the aperture opening 31a to expose the frame 74a of the screen 74. The stop control of the stepping motor 49 at this time is performed from the initial state as shown in FIG.Aperture apertureControl is performed so that the shutter disk 32 stops at a position in front of the aperture opening 31b by the angle θ so that the angle becomes the same as the angle θ up to 31a. In this way, by keeping the stop positions of the shutter disks 32-39 after each exposure constant, the time lag is also constant.
[0072]
Thereafter, the stepping motor 49 is used for the fourth release, the stepping motor 50 for the fifth to eighth releases, the stepping motor 49 for the ninth to 12th releases, and the stepping motor for the 13th to 16th releases. The motor 50 is driven by a predetermined angle to expose an image for each release to each of the frames 74b to 74h and 75a to 75h.
[0073]
Next, a case where continuous shooting is performed after one-shot shooting is described. FIG. 19 shows a case in which after the first two frames have been shot in one-shot shooting, continuous shooting has been performed on the remaining 14 frames. When one-shot shooting is performed, the number of timessimulationIt is displayed on the display unit 18d. In this display, since one-shot shooting has been performed twice, two rectangular segments 18e from the upper left are displayed.
[0074]
If the continuous shooting is performed at this time, the CPU 100 uniquely determines the exposure interval for the remaining frames from the count value of the one-shot counter 99. There are cases where it becomes impossible to grasp. Therefore, in the present embodiment, the exposure timing when performing subsequent continuous shooting is set.simulationIt is also possible to display. In other words, when the continuous shooting time change switch 19 is operated to match the intended continuous shooting time after performing two one-shot shootings,simulationSimulation display is performed by displaying rectangular segments 18e other than the rectangular segment 18e indicating the number of times of one-shot shooting displayed on the display unit 18d.
[0075]
For example, since the one-shot shooting is performed twice, two rectangular segments 18e are displayed on the simulation display section 18d, that is, the upper left and right neighbors. Then, in the simulation display, as shown in FIG. 28, the third rectangular segment 18e from the upper left is displayed, and thereafter, as shown in Table 2, the rectangular segments 18e are spaced at the same interval as the exposure interval when the number of remaining frames is 14. 18e are displayed in order.
[0076]
After confirming this simulation display, the photographer operates the continuous shooting release bonder 16, and for example, when the continuous shooting time is selected to be low, the shutter disk is rotated as shown in FIG. Exposure is performed on the remaining 14 frames.
[0077]
If a load is applied to the motor 87a when the film is wound up for two screens as described above, the motor 87a is detected and the motor 87a is controlled to rewind the entire photographic film 86, and the exposure is performed. The completed photo film 86 is stored in the cartridge 88. The back cover 21 is opened to take out the patrone 88 and submit it to the developing laboratory. At the developing station, the same processing is performed as before, and printing is performed for each screen from the developed photographic film 86 to produce a print photograph having a high vision ratio of 89 × 158 mm. Then, by arranging the obtained two print photographs side by side, it is possible to observe 16 still images in which the movement of the subject stops every moment.
[0078]
In the embodiment described above, the simulation display is automatically performed by operating the continuous shooting time change switch 19 and selecting the continuous shooting time. However, the present invention is not limited to this. A simulation display button may be provided separately from the switch 19, and the simulation display may be performed by operating the simulation display button. In this case, a dial-type continuous shooting time change switch 19 may be used instead of the push-button continuous shooting time change switch 19 for easy operation.
[0079]
Further, in the present embodiment, simulation display is performed by sequentially displaying rectangular segments on the liquid crystal display panel 18, but instead of this method, as shown in FIG. You may make it perform by moving the segment 18e sequentially. Also, it is possible to perform simulation display by blinking one segment at the same interval as the exposure interval, and in this case, the number of segment electrodes can be reduced, so that the cost of the liquid crystal display panel can be reduced.
[0080]
Further, as another example of performing the simulation display on the liquid crystal display panel 18, a plurality of fan-shaped segments obtained by dividing a circle into 16 may be sequentially displayed. Further, in the present embodiment, the simulation display is displayed by the liquid crystal which is a non-light emitting element, but the present invention is not limited to this, and the display may be performed by using a solid light emitting element, for example, an LED, an EL or the like. .
[0081]
In the above embodiment, the simulation display is displayed to the photographer visually, but may be displayed through hearing. In this case, a buzzer may be provided to generate a buzzer sound at the same interval as the exposure interval. It is also effective to make a buzzer sound together with a visual display (for example, a liquid crystal display or an LED display). Further, in the case of a type that makes this buzzer sound, exposure is not performed. If a simulation mode switching button is provided and the continuous shooting release button 16 is released in this simulation mode so that the buzzer sounds at the same interval as the exposure interval, it is possible to practice the release timing while looking through the viewfinder.
[0082]
In the continuous shooting camera of the above embodiment, when the continuous shooting mode is first selected, the time-series images are automatically exposed to all 16 frames on two screens. Although it is not possible to perform one-shot shooting for the remaining frames after performing continuous shooting, by providing an external setting member for setting the number of continuous shots, multiple It is also possible to perform one-shot shooting for the remaining frames after performing continuous shooting for the frames. Also in this case, it is needless to say that the exposure timing at the time of continuous shooting after the frame is designated can be easily displayed.
[0083]
Further, in the above embodiment, eight shutter disks are alternately rotated by two stepping motors, and 16 shutter openings are respectively traversed by two slits provided in the shutter disks, respectively, to form two screens. A continuous shooting camera of the type that exposes an image of a frame is provided with a one-shot shooting mode. However, the present invention is not limited to this. As disclosed in Japanese Unexamined Patent Publication No. 269729/1990, two shutter disks are rotated by a stepping motor, and eight shutter openings horizontally arranged by slits provided in each of the two shutter disks are sequentially crossed. To expose eight images on two screens, or as proposed in Japanese Patent Application Publication No. Hei 2-1055122, one shutter disk is It rotated at Ppingumota, or a type of exposing an image of four frames four shutter openings arranged in each vertical and horizontal two rows one slit provided in the shutter disc on one screen across respectively.
[0084]
【The invention's effect】
As described above, according to the present invention, the visualOr hearingAn external display member that displays the exposure interval is provided, so that the exposure timing can be easily grasped before performing continuous shooting, even for beginners, a series of movements from the beginning of exercise to the end of each sport The operation can be performed within the continuous shooting time and the shooting can be performed, and the failure shooting can be prevented.
[0085]
According to the second aspect of the present invention, since the switch having another function is also used as the external operation member, the cost can be reduced as compared with, for example, providing a dedicated external operation member. According to the fourth aspect of the invention, in the case of a continuous shooting camera capable of performing shooting by selectively selecting continuous shooting and one-shot shooting, the number of times of one-shot shooting is also displayed on an external display member. Thus, the cost can be reduced as compared with, for example, providing a display member for displaying the number of times of dedicated one-shot shooting.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the appearance of a continuous shooting camera.
FIG. 2 is a plan view showing an entire display state of the liquid crystal display panel.
FIG. 3 is an exploded perspective view of a shutter unit.
FIG. 4 is an exploded perspective view showing main parts such as a photographing lens and a shutter disk.
FIG. 5 is an exploded perspective view showing main parts such as a switching shielding plate and a stepping motor.
FIG. 6 is an explanatory view schematically showing a shutter unit.
FIG. 7 is an operation explanatory view schematically showing a rotation mechanism for driving a shutter disk.
FIG. 8 is a perspective view showing a main part of a shutter mechanism.
FIG. 9 is an operation explanatory view schematically showing a shielding plate switching mechanism.
FIG. 10 is a longitudinal sectional view of the continuous shooting camera.
FIG. 11 is a schematic explanatory view showing a film winding mechanism of the continuous shooting camera.
FIG. 12 is a block diagram schematically illustrating an electrical configuration of the continuous shooting camera.
FIG. 13simulationIt is a flowchart figure which shows the outline of a display program.
FIG. 14 is a flowchart showing an outline of a sequence program of the continuous shooting camera.
FIG. 15 is a timing chart showing a state of rotation of a shutter disk during exposure with respect to a pulse interval of a drive pulse supplied to a stepping motor.
FIG. 16 is a timing chart showing a state of rotation of a shutter disk when continuous shooting is performed at a low speed and 16 frames are continuously shot.
FIG. 17 is an operation explanatory view showing an initial state of a rotation mechanism and an initial position detection mechanism.
FIG. 18 shows the relationship between the exposure interval of each continuous shooting time.simulationThis is an explanation showing the display.
FIG. 19 is a timing chart showing a relationship between a golf swing and an exposure interval for each shooting mode.
FIG. 20 is a diagram illustrating the operation of the shutter unit in a state where exposure is performed on the first frame.
FIG. 21 is an explanatory diagram of an operation of a shielding plate switching mechanism when exposure is performed on a first frame.
FIG. 22 is an operation explanatory view of the shutter unit in a state where exposure of the fourth frame is performed.
FIG. 23 is a diagram illustrating the operation of the shield switching mechanism when the exposure of the fourth frame is performed.
FIG. 24 is a diagram illustrating the operation of the shutter unit when performing the exposure of the fifth frame.
FIG. 25 is an explanatory diagram of the operation of the shutter unit when the exposure of the eighth frame is performed.
FIG. 26 is a diagram illustrating the operation of the shield switching mechanism when the exposure of the eighth frame is performed.
FIG. 27 is an explanatory diagram showing a stop position of a shutter disk during one-shot shooting.
FIG. 28 after one-shot shooting is performed twice;simulationIt is an explanatory view showing a display.
FIG. 29 is a timing chart showing a state of rotation of a shutter disk in a case where continuous shooting time is reduced and continuous shooting is performed on the remaining 14 frames after one-shot shooting is performed twice.
FIG. 30 shows another embodiment.simulationIt is an explanatory view showing a display.
[Explanation of symbols]
11 continuous shooting camera
15 One-shot release button
16 Release button for continuous shooting
18 LCD panel
18c Continuous shooting time selection display
18dsimulationDisplay
19 Continuous shooting time change switch
22 Shutter unit
23, 24 shutter mechanism
13 Shooting lens
32-39 Shutter disk
31 Aperture aperture
49,50 stepping motor
57,58 Switching shield plate
59,60 crank gear
65-68 Slit gear
69, 70 PI sensor
74, 75 screen
74a-74h, 75a-75h frame

Claims (4)

In a continuous shooting camera, a time-series image is exposed at a predetermined exposure interval on each frame obtained by dividing one screen into a plurality by one shutter release.
An external operation member operated when the exposure interval is known, an external display member for displaying to a photographer visually or by hearing, and an external display member for displaying at the same interval as the exposure interval in response to operation of the external operation member. A continuous shooting camera , comprising: control means for controlling a display member . The external operation member is also used as a continuous shooting time changing member for changing a total continuous shooting time from a shutter release to exposure of the last frame, and the control means operates the continuous shooting time changing member. 2. The continuous shooting camera according to claim 1 , wherein the display of the external display member is started when or is performed . The external display member is an external display member that visually displays the image, and the external display member is provided with the same number of display areas as the number of frames obtained by dividing the one screen into a plurality of frames. in claim 1 or 2 continuous shooting camera wherein the controller controls the external display member so as to light up or blink the display area in order. Shot shooting to expose one image at the time of continuous shooting and a shutter release to be exposed at a predetermined exposure interval the time-series images in each frame obtained by dividing one screen into a plurality by a single shutter release to one frame In the continuous shooting camera that can shoot by selectively selecting
An external operation member operated when knowing the exposure interval in the continuous shooting,
An external display member provided with the same number of display units as the number of frames obtained by dividing the one screen into a plurality of frames;
At the time of the one-shot shooting, control is performed so as to display the number of display units corresponding to the number of times of the one-shot shooting of the plurality of display units, and one shot of each frame obtained by dividing one screen into a plurality When continuous shooting is selected for unexposed frames remaining after shooting, the remaining display units other than the display unit that displays the number of times of one-shot shooting previously performed in response to the operation of the external operation member Control means for controlling the external display member so as to sequentially display and to simulate the exposure interval at the time of the continuous shooting,
A continuous shooting camera comprising:

Images