JP5093989B2 - Camera equipment - Google Patents
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- JP5093989B2 JP5093989B2 JP2005076982A JP2005076982A JP5093989B2 JP 5093989 B2 JP5093989 B2 JP 5093989B2 JP 2005076982 A JP2005076982 A JP 2005076982A JP 2005076982 A JP2005076982 A JP 2005076982A JP 5093989 B2 JP5093989 B2 JP 5093989B2
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Description
本発明は、所謂オートフォーカス機能を搭載したデジタルカメラ等のカメラ機器に関する。 The present invention relates to a camera device such as a digital camera equipped with a so-called autofocus function.
従来から、パンフォーカスと呼ばれるカメラがあり、これは被写界深度を深くして、被写体全体を写すものである。しかし、かかるパンフォーカスタイプのカメラでは、近くの被写体にピントを合わせるのが難しいので、自動焦点調節機能、所謂オートフォーカス機能を搭載したカメラ機器が知られている。
これは、図5に示すように、シャッタ釦(20)が距離H分だけ押し込み可能とすると、距離Hの約半分だけ押し込まれた状態で、オートフォーカス機能が作動して、撮影レンズを動かして被写体に合焦させる。シャッタ釦(20)が距離Hだけ押し込まれると、被写体画像を記録媒体に取り込む(例えば、特許文献1参照)。シャッタ釦(20)が、距離Hの約半分だけ押し込まれた状態を半押し状態と一般に呼び、ここではシャッタ釦(20)が距離Hだけ押し込まれた状態を全押し状態と呼ぶ。オートフォーカス機能の動作は、周知の如く、撮影レンズを該レンズの光軸に沿って移動させて、図6に示すように画像データのコントラストが最大となる地点Pで、レンズの移動を止める所謂山登り方式による。
Conventionally, there is a camera called pan focus, which takes a whole depth of field and captures the entire subject. However, since it is difficult for such a pan focus type camera to focus on a nearby subject, a camera device equipped with an automatic focus adjustment function, that is, a so-called auto focus function is known.
As shown in FIG. 5, if the shutter button (20) can be pushed in by a distance H, the autofocus function is activated in a state where the shutter button (20) is pushed in about half of the distance H, and the photographing lens is moved. Focus on the subject. When the shutter button (20) is pushed by the distance H, the subject image is taken into the recording medium (see, for example, Patent Document 1). A state in which the shutter button (20) is pushed by about half of the distance H is generally referred to as a half-pressed state, and here, a state in which the shutter button (20) is pushed by a distance H is referred to as a fully-pressed state. As is well known, the operation of the autofocus function is so-called by moving the photographing lens along the optical axis of the lens and stopping the movement of the lens at a point P where the contrast of the image data becomes maximum as shown in FIG. According to hill climbing method.
従来の方法では、半押し状態で撮影レンズを合焦させてから、全押し状態で撮影を行っていた。従って、画像を撮影するのに、シャッタ釦(20)を全押しする時間が掛かり、決定的瞬間を撮り逃がす虞れがあった。また、シャッタ釦(20)を全押しするから、シャッタ釦(20)の移動ストロークが長く、手振れ、ピンボケ等の原因となっていた。
本発明の目的は、オートフォーカス機能を具え、且つ撮影終了までに時間が掛からないカメラ機器を提供することにある。
In the conventional method, the photographing lens is focused in the half-pressed state, and then shooting is performed in the fully-pressed state. Therefore, it takes time to fully press the shutter button (20) to take an image, and there is a possibility that a decisive moment will be missed. Further, since the shutter button (20) is fully pressed, the moving stroke of the shutter button (20) is long, which causes camera shake, defocusing, and the like.
An object of the present invention is to provide a camera device which has an autofocus function and does not take time until the end of photographing.
本発明のカメラ機器は、シャッタ釦(20)と、使用者の接触を検知するセンサ手段、センサ手段によって使用者の接触が検知された場合にフォーカス調整または露出調整の少なくとも一方の調整を行う調整手段による調整を行い、シャッタ釦(20)が半押しされると被写体画像を記録媒体に記録する第1の撮影制御手段、を具える。
また、センサ手段への接触が検知されなかった場合に、前記第1の撮影制御手段とは異なる態様で前記被写体画像を記録媒体に記録する第2の撮影制御手段、を具える
The camera apparatus of the present invention, a sheet Yatta button (20), sensor means for detection known contact of a user, at least one of adjustment of the focus adjustment or exposure adjustment when the contact of the user is detected by the sensor means performed to adjust by adjusting means, the first imaging control means is Yatta button (20) is to be recorded on the recording medium the object image when it is half-pressed, comprising a.
And a second imaging control unit that records the subject image on a recording medium in a manner different from that of the first imaging control unit when contact with the sensor unit is not detected.
センサ手段によって使用者の接触が検知されると、調整手段によってフォーカス調整、露出調整の少なくとも一方の調整が行われ、シャッタ釦(20)が半押しされると被写体画像が記録媒体に記録される。シャッタ釦(20)の押し下げ量が従来に比して短いため、手振れ、ピンボケ等の不良要因を軽減することができる。また、センサ手段によって使用者の接触が検知されなかった場合も異なる態様で被写体画像を記録媒体に記録することができるため、決定的瞬間を撮り逃すおそれを軽減することができる。 When the contact of the user is detected by the sensor means, at least one of focus adjustment and exposure adjustment is performed by the adjustment means, and the subject image is recorded on the recording medium when the shutter button (20) is half-pressed. . Since the amount of depression of the shutter button (20) is shorter than in the past, it is possible to reduce defective factors such as camera shake and out-of-focus. In addition, even when the user's contact is not detected by the sensor means, the subject image can be recorded on the recording medium in a different manner, so that the possibility of missing a decisive moment can be reduced.
以下、本発明の一実施例を図を用いて、詳述する。本例にあっては、カメラ機器として、デジタルカメラを例示するが、銀塩カメラでもよい。
図1は、デジタルカメラの斜視図である。キャビネット(2)上には、シャッタ釦(20)、撮影レンズ(21)、ストロボランプ(3)、液晶パネルであるディスプレイ(22)、記録媒体であるメモリカード(4)が挿入されるスロット(23)が、周知の如く配備される。シャッタ釦(20)の上面には、使用者の指が触れたことを感知するセンサ(24)が設けられている。センサ(24)はタッチセンサでも、光センサでもよい。また、センサ(24)の位置は、シャッタ釦(20)の上面に限定されず、使用者の指が触れることができるキャビネット(2)上の位置であればどこでもよい。また、記録媒体は内蔵メモリ(図示せず)でもよい。
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In this example, a digital camera is exemplified as the camera device, but a silver salt camera may be used.
FIG. 1 is a perspective view of a digital camera. On the cabinet (2), a shutter button (20), a photographing lens (21), a strobe lamp (3), a display (22) as a liquid crystal panel, and a memory card (4) as a recording medium are inserted (slots). 23) is deployed as is well known. On the upper surface of the shutter button (20), there is provided a sensor (24) that senses that the user's finger has touched. The sensor (24) may be a touch sensor or an optical sensor. Further, the position of the sensor (24) is not limited to the upper surface of the shutter button (20), and may be any position on the cabinet (2) where the user's finger can touch. The recording medium may be a built-in memory (not shown).
図2は、デジタルカメラの内部ブロック図である。撮影レンズ(21)は駆動機構(6)により、光軸に沿って移動可能であり、被写体の像は撮影レンズ(21)により絞り(54)を通ってCCD(5)上に結ばれる。CCD(5)は受けた光信号を電気信号である画像信号に変換して出力し、該画像信号はCDS(相関二重サンプリング)回路(50)によりノイズが低減された後に、AGC(自動利得制御)回路(51)によりレベルが調整される。画像信号は、A/Dコンバータ(55)にてデジタル信号に変換され、信号処理部(52)にて黒レベルやホワイトバランスが調整された後に、CPUである制御手段(1)に入力する。制御手段(1)からの画像信号は圧縮伸長回路(53)にて圧縮されてメモリカード(4)内に格納される。
シャッタ釦(20)及びセンサ(24)は制御手段(1)に繋がり、センサ(24)は使用者の指が触れると、その旨を感知して信号を制御手段(1)に送る。また、制御手段(1)はシャッタ釦(20)の押込み量を検知して、シャッタ釦(20)が半押し状態か、全押し状態かを検知する。シャッタ釦(20)の全押し量は高さHであり、半押し量は約H/2となる。”約H/2”としたのは、半押し状態が、シャッタ釦(20)が全押し状態の丁度半分だけ押された状態を指すのではないとの意味である。
FIG. 2 is an internal block diagram of the digital camera. The photographing lens (21) can be moved along the optical axis by the drive mechanism (6), and the image of the subject is connected to the CCD (5) through the diaphragm (54) by the photographing lens (21). The CCD (5) converts the received optical signal into an image signal, which is an electrical signal, and outputs the image signal. After the noise is reduced by the CDS (correlated double sampling) circuit (50), the AGC (automatic gain) The level is adjusted by the (control) circuit (51). The image signal is converted into a digital signal by the A / D converter (55), and after the black level and white balance are adjusted by the signal processing unit (52), the image signal is input to the control means (1) which is a CPU. The image signal from the control means (1) is compressed by the compression / decompression circuit (53) and stored in the memory card (4).
The shutter button (20) and the sensor (24) are connected to the control means (1), and when the user's finger touches the sensor (24), this is detected and a signal is sent to the control means (1). The control means (1) detects the amount of pressing of the shutter button (20), and detects whether the shutter button (20) is half-pressed or fully pressed. The full press amount of the shutter button (20) is the height H, and the half press amount is about H / 2. “About H / 2” means that the half-pressed state does not indicate a state in which the shutter button (20) is pressed just half of the fully-pressed state.
センサ(24)を作動させるか否かは、使用者が任意に設定できる。以下、センサ(24)を作動させるモードを第1のモード、センサ(24)を作動させないモードを、第2のモードとする。第1のモードと第2のモードは、スイッチ手段にて使用者が設定を切り換えることができ、このスイッチ手段の具体例は、例えば図1のディスプレイ(22)に表示されるメニュー画面、又は図1のキャビネット(2)に設けられるスイッチ釦(25)である。スイッチ手段によって、制御手段(1)は第1のモード、第2のモードの何れにも設定され得る。 The user can arbitrarily set whether or not to operate the sensor (24). Hereinafter, the mode in which the sensor (24) is operated is referred to as a first mode, and the mode in which the sensor (24) is not operated is referred to as a second mode. The first mode and the second mode can be switched by the user with the switch means, and a specific example of the switch means is, for example, a menu screen displayed on the display (22) in FIG. A switch button (25) provided in one cabinet (2). The control means (1) can be set to either the first mode or the second mode by the switch means.
(第1実施例)
第1のモード
図3は、両モードの動作を示す説明図である。第1のモードにあっては、図3の左側に示すように、センサ(24)が作動、即ちONとなっており、使用者の指がセンサ(24)に触れると、センサ(24)は制御手段(1)にその旨の信号を送る。制御手段(1)は撮影処理、具体的には駆動機構(6)にオートフォーカス動作を指示し、撮影レンズ(21)を被写体画像に合焦させる(S1)。このとき、動いている被写体にオートフォーカス機能を連続して働かせる所謂コンティニュアスオートフォーカス(C-AF)状態としてもよい。また、オートフォーカス機能の作動時には、露出制御(AE)も行われるが、デジタルカメラでは絞りが固定式となっているので、露出制御は図2に示すCCD(5)の露光量を調節して行われる。
使用者がシャッタ釦(20)を半押しすると、制御手段(1)は撮影画像をメモリカード(4)に取り込む旨の信号を発し、画像がメモリカード(4)内に格納される。これを記録処理と呼ぶ(S2)。これ以上、シャッタ釦(20)を押し込んでも、動作は無効となる、又は他の動作が割り当てられる(S3)。この割り当てられる他の動作とは、例えば記録画像のプレビューである。
即ち、制御手段(1)が第1のモードに設定されると、シャッタ釦(20)が半押し状態で、撮影動作が終了し、この場合、シャッタ釦(20)に触れてから、撮影終了までの時間はt1となる。これに比して、従来のデジタルカメラにあっては、撮影終了するにはシャッタ釦(20)を全押しする必要があるから、撮影終了までの時間はt1+t2(t2は半押し状態から全押し状態までの時間)となる。従って、従来に比して、撮影終了までに時間が掛からないから、決定的瞬間を取り逃がす虞れが軽減される。
また、撮影終了までにシャッタ釦(20)を押す距離が従来よりも短いから、手振れ、ピンボケ等の不良要因を低減でき、より簡単に且つ美しく撮影できる。
(First embodiment)
First Mode FIG. 3 is an explanatory diagram showing the operation in both modes. In the first mode, as shown on the left side of FIG. 3, the sensor (24) is activated, that is, turned on. When the user's finger touches the sensor (24), the sensor (24) A signal to that effect is sent to the control means (1). The control means (1) instructs the photographing process, specifically the driving mechanism (6) to perform an autofocus operation, and focuses the photographing lens (21) on the subject image (S1). At this time, a so-called continuous autofocus (C-AF) state in which the autofocus function is continuously applied to a moving subject may be used. When the autofocus function is activated, exposure control (AE) is also performed. However, since the aperture is fixed in the digital camera, the exposure control is performed by adjusting the exposure amount of the CCD (5) shown in FIG. Done.
When the user presses the shutter button (20) halfway, the control means (1) issues a signal to capture the captured image into the memory card (4), and the image is stored in the memory card (4). This is called a recording process (S2). If the shutter button (20) is pressed further, the operation becomes invalid or another operation is assigned (S3). This other assigned operation is, for example, a preview of a recorded image.
That is, when the control means (1) is set to the first mode, the photographing operation is finished with the shutter button (20) being pressed halfway, and in this case, the photographing is finished after the shutter button (20) is touched. The time until is t1. In contrast, in a conventional digital camera, it is necessary to fully press the shutter button (20) in order to end shooting, so the time until the end of shooting is t1 + t2 (t2 is half-pressed to fully pressed) Time to state). Therefore, as compared with the prior art, since it takes less time to complete the photographing, the possibility of missing a decisive moment is reduced.
In addition, since the distance of pressing the shutter button (20) before the end of shooting is shorter than before, it is possible to reduce defective factors such as camera shake and out-of-focus, and to shoot more easily and beautifully.
何らかの不具合で、使用者の指がセンサ(24)に触れたにも拘わらず、センサ(24)が接触を感知しない場合が考えられる。この場合は、直ちに撮影不可能となるのではなく、シャッタ釦(20)の半押し状態にて、オートフォーカス動作が開始され、次に撮影画像がメモリカード(4)内に格納される。即ち、撮影処理と記録処理が行われる(S4)。
シャッタ釦(20)の全押し状態で、動作は無効となる、又は記録画像のプレビューのような他の動作が割り当てられる(S5)。これにより、センサ(24)が指の接触を感知した場合に比して、撮影処理の時間分のタイムロスはあるが、撮影終了までにシャッタ釦(20)を押す距離は従来よりも短くて済む。従って、センサ(24)が指の接触を感知しなくても、手振れ、ピンボケ等の不良要因を低減でき、より簡単に且つ美しく撮影できる効果は得られる。
There may be a case where the sensor (24) does not sense the touch even though the user's finger touches the sensor (24) due to some trouble. In this case, it is not immediately impossible to shoot, but the autofocus operation is started when the shutter button (20) is half-pressed, and then the shot image is stored in the memory card (4). That is, photographing processing and recording processing are performed (S4).
When the shutter button (20) is fully pressed, the operation becomes invalid or another operation such as a preview of the recorded image is assigned (S5). As a result, compared to the case where the sensor (24) senses a finger contact, there is a time loss corresponding to the time of the photographing process, but the distance to press the shutter button (20) before the end of photographing is shorter than before. . Therefore, even if the sensor (24) does not sense finger contact, it is possible to reduce the cause of defects such as camera shake and out-of-focus, and to obtain an effect that can be photographed more easily and beautifully.
第2のモード
センサ(24)を作動させない第2のモードにあっては、従来と同様に、シャッタ釦(20)の半押し状態にて、オートフォーカス動作が開始され(S6)、シャッタ釦(20)の全押し状態で、撮影画像がメモリカード(4)内に格納される(S7)。この場合、シャッタ釦(20)に触れてから、撮影終了までの時間は従来と同様に、t1+t2となる。
使用者の中には、従来からのデジタルカメラに慣れ親しんだ使用者もいることから、かかる使用者は第2のモードにて撮影することによって、これまでと違和感なく撮影できる。
In the second mode in which the second mode sensor (24) is not operated, the autofocus operation is started when the shutter button (20) is half-pressed as in the conventional case (S6), and the shutter button ( In the fully depressed state of 20), the photographed image is stored in the memory card (4) (S7). In this case, the time from the touch of the shutter button (20) to the end of shooting is t1 + t2, as in the conventional case.
Since some users are familiar with conventional digital cameras, such users can shoot without any discomfort by shooting in the second mode.
本例のカメラ機器にあっては、第1のモードにて、シャッタ釦(20)の半押し状態で、合焦された画像が記録されるので、従来に比して撮影までに時間が掛からない。これにより、決定的瞬間を取り逃がす虞れが軽減される。合わせて、撮影終了までにシャッタ釦(20)を押す距離が従来よりも短いから、手振れ、ピンボケ等の不良要因を低減でき、より簡単に且つ美しく撮影できる。また、第2のモードでは、従来と同じ要領で撮影ができるので、従来のカメラ機器に馴染んだ使用者にも違和感無く使用されることができる。
上記例では、第1のモードと第2のモードの設定が切り換え可能としたが、第1のモードのみを具えたカメラ機器にも、本発明の技術的思想が適用可能であることは勿論である。また、使用者の接触を感知するのは、センサ(24)に限定されず、スイッチでもよい。
In the camera device of this example, since the focused image is recorded in the first mode when the shutter button (20) is half-pressed, it takes time to shoot compared to the conventional case. Absent. This reduces the risk of missing a critical moment. In addition, since the distance to press the shutter button (20) before the end of shooting is shorter than before, it is possible to reduce defective factors such as camera shake and out-of-focus, and to shoot more easily and beautifully. Further, in the second mode, since photographing can be performed in the same manner as in the past, it can be used without a sense of incongruity even for users familiar with conventional camera devices.
In the above example, the setting of the first mode and the second mode can be switched. However, it goes without saying that the technical idea of the present invention can be applied to a camera device having only the first mode. is there. In addition, sensing a user's contact is not limited to the sensor (24), and a switch may be used.
(第2実施例)
図4は、別の実施例に於ける両モードの動作を示す説明図である。本例にあっては、使用者の指がセンサ(24)に触れたにも拘わらず、センサ(24)が接触を感知しない場合の動作が第1実施例とは異なる。
この場合は、直ちに撮影不可能となるのではなく、シャッタ釦(20)の半押し状態にて、オートフォーカス動作が開始され(S6)、シャッタ釦(20)の全押し状態で、撮影画像がメモリカード(4)内に格納される(S7)。この場合、シャッタ釦(20)に触れてから、撮影終了までの時間はt1+t2、即ち従来と同じとなる。これにより、第1のモードにて、センサ(24)動作に不具合が生じても、撮影自体は可能である。
(Second embodiment)
FIG. 4 is an explanatory diagram showing the operation in both modes in another embodiment. In this example, although the user's finger touches the sensor (24), the operation when the sensor (24) does not sense contact is different from that of the first embodiment.
In this case, it is not immediately impossible to shoot, but the autofocus operation is started when the shutter button (20) is half-pressed (S6), and the shot image is displayed when the shutter button (20) is fully pressed. It is stored in the memory card (4) (S7). In this case, the time from the touch of the shutter button (20) to the end of shooting is t1 + t2, that is, the same as the conventional one. As a result, even if a malfunction occurs in the operation of the sensor (24) in the first mode, photographing itself is possible.
上記実施例の説明は、本発明を説明するためのものであって、特許請求の範囲に記載の発明を限定し、或は範囲を減縮する様に解すべきではない。又、本発明の各部構成は上記実施例に限らず、特許請求の範囲に記載の技術的範囲内で種々の変形が可能であることは勿論である。 The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. In addition, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.
(1) 制御手段
(2) キャビネット
(20) シャッタ釦
(1) Control means
(2) Cabinet
(20) Shutter button
Claims (2)
使用者の接触を検知するセンサ手段、
フォーカス調整または露出調整の少なくとも一方の調整を行う調整手段、
前記使用者の接触が検知された場合に、前記調整手段による調整を行い、前記シャッタ釦が前記第1位置に押し下げられると前記調整手段によって調整された被写体画像を記録媒体に記録する第1の撮影制御手段、
前記使用者の接触が検知されなかった場合は、前記シャッタ釦が前記第1位置に押し下げられたときに、前記調整手段による調整を行い、前記調整手段によって調整された被写体画像を前記記録媒体に記録する第2の撮影制御手段、
を具えることを特徴とするカメラ機器。 A shutter button that can be pushed down to a first position and a second position;
Sensor means for detecting user contact,
Adjusting means for adjusting at least one of focus adjustment and exposure adjustment;
When the contact of the user is detected, adjustment is performed by the adjustment unit, and when the shutter button is pushed down to the first position, a subject image adjusted by the adjustment unit is recorded on a recording medium. Shooting control means,
When the contact of the user is not detected, when the shutter button is pushed down to the first position, adjustment is performed by the adjustment unit, and the subject image adjusted by the adjustment unit is stored on the recording medium. Second shooting control means for recording;
A camera device characterized by comprising:
使用者の接触を検知するセンサ手段、
フォーカス調整または露出調整の少なくとも一方の調整を行う調整手段、
前記使用者の接触が検知された場合に、前記調整手段による調整を行い、前記シャッタ釦が前記第1位置に押し下げられると前記調整手段によって調整された被写体画像を記録媒体に記録する第1の撮影制御手段、
前記使用者の接触が検知されなかった場合は、前記シャッタ釦が前記第1位置に押し下げられたときに、前記調整手段による調整を行い、前記シャッタ釦が前記第2位置押し下げられたときに前記被写体画像を前記記録媒体に記録する第2の撮影制御手段、
を具えることを特徴とするカメラ機器。 A shutter button that can be pushed down to a first position and a second position;
Sensor means for detecting user contact,
Adjusting means for adjusting at least one of focus adjustment and exposure adjustment;
When the contact of the user is detected, adjustment is performed by the adjustment unit, and when the shutter button is pushed down to the first position, a subject image adjusted by the adjustment unit is recorded on a recording medium. Shooting control means,
When the contact of the user is not detected, adjustment is performed by the adjusting means when the shutter button is pushed down to the first position, and when the shutter button is pushed down to the second position, Second imaging control means for recording a subject image on the recording medium ;
A camera device characterized by comprising:
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JP3788449B2 (en) * | 1999-03-26 | 2006-06-21 | カシオ計算機株式会社 | Imaging apparatus and signal processing method thereof |
JP2002341233A (en) * | 2001-05-17 | 2002-11-27 | Nikon Corp | Camera |
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