JP4649185B2 - Strobe device - Google Patents

Strobe device Download PDF

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JP4649185B2
JP4649185B2 JP2004350259A JP2004350259A JP4649185B2 JP 4649185 B2 JP4649185 B2 JP 4649185B2 JP 2004350259 A JP2004350259 A JP 2004350259A JP 2004350259 A JP2004350259 A JP 2004350259A JP 4649185 B2 JP4649185 B2 JP 4649185B2
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light
flash
light receiving
reflector
receiving element
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JP2006162695A (en
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唆月 石橋
徹 間宮
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Olympus Imaging Corp
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Olympus Imaging Corp
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Description

本発明は、閃光放電管からの光の一部を受光センサで受光し、受光センサの受光量に応じて閃光放電管の発光(閃光)を制御するストロボ装置、特に撮影レンズの焦点距離に対応して照射角度を可変設定できるストロボ装置に関する。   The present invention is a strobe device that receives a part of light from a flash discharge tube by a light receiving sensor and controls light emission (flash) of the flash discharge tube in accordance with the amount of light received by the light receiving sensor, particularly corresponding to a focal length of a photographing lens. Thus, the present invention relates to a strobe device that can variably set the irradiation angle.

ストロボ装置は、凹面状の反射傘の要部分にキセノンランプなど閃光発光管を配設してなる閃光ユニットを枠体の内部に配置し、反射傘の反射面に対向して枠体の前面開口部にフレネルレンズのような集光レンズ(光学素子)を取付けて構成されている。そして、撮影レンズの焦点距離に対応して閃光ユニットが移動して照射角度を変更したり、シャッタの先幕と後幕とでスリットを形成してスリットが結像面上を走行する間、閃光発光管が連続発光するストロボ装置が知られている。   The strobe device has a flash unit in which a flash light emitting tube such as a xenon lamp is arranged in the main part of a concave reflector, and the front of the frame is opposed to the reflective surface of the reflector. A condensing lens (optical element) such as a Fresnel lens is attached to the part. The flash unit moves in accordance with the focal length of the photographic lens to change the irradiation angle, or a flash is formed while the slit is formed between the front curtain and the rear curtain of the shutter and the slit travels on the imaging surface. A strobe device in which an arc tube continuously emits light is known.

閃光ユニットのズーム位置、つまり、ズーム照射角度にかかわらず、閃光発光管からの一定の発光量、すなわち基準となる発光量に対して受光素子の受光量（入射光）が一定であれば、絞り値、被写体距離が既知であるため、ガイドナンバ（＝絞り値×被写体距離）に対応した適正な露出が得られる。そのため、連続発光する閃光放電管からの光の一部をフォトセンサのような受光素子で受光し、受光量を基準値と比較して連続発光を、つまり、それぞれの発光ごとにその発光を止めて閃光放電管の制御がなされている。   Regardless of the zoom position of the flash unit, that is, the zoom irradiation angle, if the received light amount (incident light) of the light receiving element is constant with respect to the constant light emission amount, that is, the reference light emission amount, the aperture Since the value and the subject distance are known, an appropriate exposure corresponding to the guide number (= aperture value × subject distance) can be obtained. Therefore, a part of the light from the flash discharge tube that continuously emits light is received by a light receiving element such as a photosensor, and the amount of received light is compared with a reference value to emit light continuously, that is, the light emission is stopped for each light emission. The flash discharge tube is controlled.

たとえば、特開平５−１２７２２６号公報のストロボ装置では、可動の閃光ユニットの側方で枠体の外壁に受光素子を配置し、枠体を外部モールドで覆い、集光レンズの外面（前面）にアクリル板を設け、集光レンズの内面（背面）に遮光テープを貼るとともに、集光レンズの内面にテ−パ部を形成している。
この構成では、閃光ユニットの側方で枠体の外壁に配置されているため、枠体に遮られて受光素子は閃光発光管からの光を直接受光しない。そして、閃光発光管からの光の一部は集光レンズのテーパ部で反射して受光素子で受光されるとともに、集光レンズを透過してアクリル板で反射した光も受光素子で受光される。ここで、テーパ部での反射光はテーパ部の形状に、アクリル板での反射光は遮光テープの形状にそれぞれ影響するため、閃光ユニットのズーム位置に応じて、テーパ部、遮光テープの形状を調整すれば、受光素子の受光量がほぼ一定に制御できる。
特開平５−１２７２２６号公報 For example, in the strobe device disclosed in Japanese Patent Application Laid-Open No. 5-127226, a light receiving element is disposed on the outer wall of the frame body on the side of the movable flash unit, the frame body is covered with an external mold, and the outer surface (front surface) of the condenser lens. An acrylic plate is provided, and a light shielding tape is applied to the inner surface (back surface) of the condenser lens, and a taper portion is formed on the inner surface of the condenser lens.
In this configuration, since it is disposed on the outer wall of the frame body on the side of the flash unit, the light receiving element is not directly received by the flash body due to being blocked by the frame body. A part of the light from the flash tube is reflected by the tapered portion of the condenser lens and received by the light receiving element, and the light transmitted through the condenser lens and reflected by the acrylic plate is also received by the light receiving element. . Here, the reflected light from the taper part affects the shape of the taper part, and the reflected light from the acrylic plate affects the shape of the light shielding tape, so the shape of the taper part and light shielding tape depends on the zoom position of the flash unit. If adjusted, the amount of light received by the light receiving element can be controlled to be substantially constant.
JP-A-5-127226

被写体からの反射光を受光センサが受光すれば、閃光ユニットのズーム位置に応じて受光センサの受光量が変動するから、受光センサの受光量を一定に維持することが難しい。そして、撮影レンズの焦点距離に対応した閃光ユニットのズーム位置にかかわらず基準発光量に対して受光素子の受光量を一定にして適切な露出制御を行なうためには、閃光ユニットのズーム位置に応じてセンサ感度を切換えたり、光量判定レベルを調整する必要があり、ストロボ装置の制御回路が複雑になる。   If the light receiving sensor receives the reflected light from the subject, the amount of light received by the light receiving sensor varies depending on the zoom position of the flash unit, so it is difficult to keep the amount of light received by the light receiving sensor constant. In order to carry out appropriate exposure control with the light receiving amount of the light receiving element constant with respect to the reference light emitting amount regardless of the zoom position of the flash unit corresponding to the focal length of the photographing lens, it is necessary to perform according to the zoom position of the flash unit. Therefore, it is necessary to switch the sensor sensitivity and adjust the light quantity determination level, which complicates the control circuit of the strobe device.

たとえば、上記特開平５-１２７２２６号公報では、集光レンズ内面のテーパ部および遮光テープのそれぞれの形状を調整して受光素子の受光量を制御している。しかしこの構成では、受光素子は集光レンズに対向して配置されているため、被写体の反射光が集光レンズを介して受光素子に直接入射することを阻止できず、被写体の反射光の影響を無視できない。そのため、閃光ユニットのズーム位置にかかわらず、適切な露出制御を行なうためには、閃光ユニットのズーム位置に応じてテーパ部および遮光テープのそれぞれの形状を正確に調整する必要があり、構成的に複雑化しやすい。   For example, in JP-A-5-127226, the amount of light received by the light receiving element is controlled by adjusting the respective shapes of the tapered portion of the inner surface of the condenser lens and the light shielding tape. However, in this configuration, since the light receiving element is arranged opposite to the condenser lens, it is impossible to prevent the reflected light of the subject from directly entering the light receiving element through the condenser lens, and the influence of the reflected light of the subject. Cannot be ignored. Therefore, in order to perform appropriate exposure control regardless of the zoom position of the flash unit, it is necessary to accurately adjust the respective shapes of the taper portion and the light shielding tape according to the zoom position of the flash unit. Easy to make complicated.

本発明は、閃光ユニットのズーム位置にかかわらず閃光発光管からの一定発光量に対して受光素子の受光量をほぼ一定とする簡単な構成のストロボ装置の提供を目的としている。   SUMMARY OF THE INVENTION An object of the present invention is to provide a strobe device having a simple configuration in which the amount of light received by a light receiving element is substantially constant with respect to a constant amount of light emitted from a flash tube regardless of the zoom position of a flash unit.

本発明は、反射傘の反射面の反対側に受光素子を配置したことを特徴としている。   The present invention is characterized in that a light receiving element is disposed on the opposite side of the reflecting surface of the reflector.

請求項１に係る本発明によれば、受光素子が反射傘の反射面の反対側に配置されているため、被写体からの反射光は反射傘が壁となって受光素子に直接入射せず、受光素子は光学素子に照射されて反射された光を受光するため、閃光ユニットのズーム位置にかかわらず閃光発光管からの一定発光量に対して受光素子の受光量がほぼ一定となる。   According to the first aspect of the present invention, since the light receiving element is disposed on the opposite side of the reflecting surface of the reflector, the reflected light from the subject does not directly enter the light receiving element because the reflector becomes a wall. Since the light receiving element receives light reflected from the optical element, the amount of light received by the light receiving element is substantially constant with respect to the constant amount of light emitted from the flash tube regardless of the zoom position of the flash unit.

本発明では、反射傘の反射面の反対側に受光素子を配置し、受光素子に対する被写体からの反射光の影響をカットすることにより、閃光発光管からの一定発光量に対して受光素子の受光量の一定化を実現している。   In the present invention, a light receiving element is arranged on the opposite side of the reflecting surface of the reflector, and the light receiving element receives light for a certain amount of light emitted from the flash light emitting tube by cutting the influence of reflected light from the subject on the light receiving element. A constant amount is achieved.

以下、図面を参照して本発明の実施例について説明する。図１は本発明の実施例に係るストロボ装置１０の概略縦断面図であり、図１（Ａ）はズームワイド、図１（Ｂ）はズームテレでのストロボ装置を示し、（Ｃ）は集光レンズ、ワイドパネルを除去したストロボ装置の正面図を示す。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic longitudinal sectional view of a strobe device 10 according to an embodiment of the present invention. FIG. 1 (A) shows a zoom wide, FIG. 1 (B) shows a zoom tele strobe device, and FIG. The front view of the strobe device with the lens and wide panel removed is shown.

図１（Ａ）（Ｂ）に示すように、ストロボ装置１０は、キセノンランプのような閃光発光管１２と、空間内部に閃光発光管を支持する凹面状の反射傘１４と、閃光発光管からの発光を被写体に配光するフレネルレンズのような集光レンズ（光学素子）１６と、閃光発光管からの光を受光するフォトセンサのような受光素子１８と、閃光発光管、反射傘、集光レンズ、受光素子を収納する枠体２０とを備えて構成されている。なお、閃光発光管１２は凹面状の反射傘１４の凹部空間内部に配設され、閃光発光管、反射傘は一体化されて閃光ユニット１５を構成し、閃光ユニットは撮影レンズの焦点距離に対応してその照射角度を変更するように集光レンズ１４に対して移動可能に枠体内に位置している。閃光ユニットの駆動手段については後述する。また、ワイドパネル２２が枠体２０の上面に回動可能に配置されている。   As shown in FIGS. 1A and 1B, a strobe device 10 includes a flash light emitting tube 12 such as a xenon lamp, a concave reflector 14 that supports the flash light emitting tube inside the space, and a flash light emitting tube. A light collecting element (optical element) 16 such as a Fresnel lens that distributes the emitted light to the subject, a light receiving element 18 such as a photosensor that receives light from the flash light emitting tube, a flash light emitting tube, a reflector, An optical lens and a frame 20 that houses the light receiving element are provided. The flash tube 12 is disposed inside the concave space of the concave reflector 14, and the flash tube and reflector are integrated to form a flash unit 15, which corresponds to the focal length of the photographing lens. Then, it is located within the frame so as to be movable with respect to the condenser lens 14 so as to change the irradiation angle. The driving means for the flash unit will be described later. A wide panel 22 is rotatably disposed on the upper surface of the frame body 20.

受光素子１８は、反射傘１４に対して集光レンズと反対側に、つまり、反射傘の凹面である反射面１４ａの反対側で枠体２０の取付け孔２０ａに取付けられている。   The light receiving element 18 is attached to the attachment hole 20a of the frame 20 on the side opposite to the condenser lens with respect to the reflector 14, that is, on the opposite side of the reflection surface 14 a that is the concave surface of the reflector.

このように、受光センサ１８を反射傘１４の背後に配置すれば、被写体からの反射光は反射傘１４が壁となって受光センサに直接入射せず、被写体の反射光の影響が無視できる。そして、集光レンズ１６に照射されて反射され、反射傘を回り込んで入射した光のみを受光素子１８は受光する。そのため、撮影レンズの焦点距離に対応して閃光ユニット１５が図１（Ａ）のワイドズーム、図１（Ｂ）のワイドテレの間のいずれに位置しても、閃光発光管１２からの一定発光量に対して受光素子１８はほぼ一定の光を受光する。また、被写体からの反射光が受光センサ１８に直接入射し難いため、図１（Ｂ）に示すように、ワイドパネル２２が回動されて集光レンズ１６の前に配置された場合でも、閃光発光管１２からの一定発光量に対して受光素子１８はほぼ一定の光を受光し、ワイドパネルの有無は受光素子の受光と無関係になる。   Thus, if the light receiving sensor 18 is arranged behind the reflector 14, the reflected light from the subject does not directly enter the light receiving sensor with the reflector 14 being a wall, and the influence of the reflected light of the subject can be ignored. Then, the light receiving element 18 receives only the light that is irradiated and reflected by the condenser lens 16 and enters the reflecting umbrella. Therefore, a constant light emission amount from the flash tube 12 regardless of whether the flash unit 15 is positioned between the wide zoom in FIG. 1A or the wide telescope in FIG. On the other hand, the light receiving element 18 receives substantially constant light. In addition, since the reflected light from the subject is difficult to directly enter the light receiving sensor 18, even when the wide panel 22 is rotated and arranged in front of the condenser lens 16, as shown in FIG. The light receiving element 18 receives substantially constant light with respect to a constant light emission amount from the arc tube 12, and the presence or absence of the wide panel is irrelevant to the light reception of the light receiving element.

このように、ワイドパネル２２の有無や閃光ユニットのズーム位置にかかわらず閃光発光管１２からの一定発光量に対して受光素子の受光量がほぼ一定になるため、閃光ユニット１５のズーム位置に応じてセンサ感度を切換えたり、光量判定レベルを調整することなく、適切な露出でストロボ撮影が行える。そして、センサ感度の切換えや光量判定レベルの調整が不要であるため、ストロボ装置の制御回路が複雑化することもない。
また、受光センサ１８を反射傘１４の背後に配置するというきわめて簡単な構成で、閃光ユニットのズーム位置にかかわらず閃光発光管１２からの一定発光量に対して受光素子１８の受光量が一定化する。そのため、受光量の一定化のための調整は一切不要であり、ストロボ装置１０の構成を複雑化する要素は全く存在しない。 As described above, the amount of light received by the light receiving element is substantially constant with respect to the constant amount of light emitted from the flash tube 12 regardless of the presence of the wide panel 22 and the zoom position of the flash unit. This makes it possible to perform flash photography at an appropriate exposure without changing the sensor sensitivity or adjusting the light intensity determination level. Since it is not necessary to switch the sensor sensitivity or adjust the light quantity determination level, the control circuit of the strobe device does not become complicated.
Further, the light receiving sensor 18 is arranged behind the reflector 14 so that the light receiving amount of the light receiving element 18 is constant with respect to the constant light emitting amount from the flash light emitting tube 12 regardless of the zoom position of the flash unit. To do. Therefore, there is no need for adjustment for making the amount of received light constant, and there is no element that complicates the configuration of the strobe device 10.

図１に示すように、被写体からの反射光に対して反射傘１４の影となる範囲２４に受光素子１８を配置すれば、被写体からの反射光の直接入射が確実にカットされ、被写体からの反射光の影響を無視できる。   As shown in FIG. 1, if the light receiving element 18 is arranged in a range 24 that is a shadow of the reflector 14 with respect to the reflected light from the subject, direct incidence of the reflected light from the subject is surely cut, and The influence of reflected light can be ignored.

また、受光素子１８を反射傘１４の上下方向および左右方向の中央線Ｏのほぼ上、つまり、図１（Ｃ）に示すように、背後のほぼ中央に配置すれば、反射傘を回り込んだ光が上下方向および左右方向でほぼ均一に受光素子に入射し、受光素子の受光が安定する。   Further, if the light receiving element 18 is arranged substantially above the center line O in the vertical and horizontal directions of the reflector 14, that is, as shown in FIG. Light enters the light receiving element almost uniformly in the vertical and horizontal directions, and the light reception of the light receiving element is stabilized.

閃光ユニットのズーム位置による受光素子の受光量の変化を図２に示す。受光センサ１８を反射傘１４の背後に配置した実施例の構成では、ズーム位置が２８ｍｍ、３５ｍｍ、５０ｍｍ、７０ｍｍという２８〜７０ｍｍの広い範囲で閃光発光管１２からの一定発光量に対して受光素子１８の受光量は一定値（６０ｍＶ）となり、２０ｍｍで最大値７０ｍＶ、２４ｍｍで最小値５５ｍＶとなり、その変動率（変動幅：最大値／最小値）は１．２７にすぎない。
これに対して、可動の閃光ユニット１１５の側方で枠体１２０の外壁に受光素子１１８を配置し、枠体を外部モールド１３０で覆った図４に示す従来の構成では、ズーム位置が２８ｍｍ、３５ｍｍで閃光発光管１１２からの一定発光量に対して受光素子１１８の受光量が一定値（５０ｍＶ）となるとはいえ、一定値となる範囲は狭く、５０ｍｍで最大値１１５ｍＶ、２４ｍｍで最小値４０ｍＶとなり、変動率は２．８７もあり、実施例の２倍を超えている。なお、図４の従来の構成は、外部モールドを除いて、図１の実施例の対応する部材に１００を加えて図示している。 FIG. 2 shows changes in the amount of light received by the light receiving element depending on the zoom position of the flash unit. In the configuration of the embodiment in which the light receiving sensor 18 is arranged behind the reflector 14, the light receiving element with respect to a constant light emission amount from the flash light emitting tube 12 in a wide range of 28 to 70 mm such as 28 mm, 35 mm, 50 mm, and 70 mm in the zoom position. The amount of received light 18 is a constant value (60 mV), the maximum value is 70 mV at 20 mm, the minimum value is 55 mV at 24 mm, and the variation rate (variation width: maximum value / minimum value) is only 1.27.
On the other hand, in the conventional configuration shown in FIG. 4 in which the light receiving element 118 is disposed on the outer wall of the frame 120 at the side of the movable flash unit 115 and the frame is covered with the external mold 130, the zoom position is 28 mm. Although the amount of light received by the light receiving element 118 is a constant value (50 mV) with respect to a constant amount of light emitted from the flash tube 112 at 35 mm, the range of the constant value is narrow, a maximum value of 115 mV at 50 mm, and a minimum value of 40 mV at 24 mm. Thus, the fluctuation rate is 2.87, which is more than twice that of the embodiment. The conventional configuration of FIG. 4 is illustrated by adding 100 to the corresponding members of the embodiment of FIG. 1 except for the external mold.

このように、受光素子を枠体１２０の外壁に配置した従来の構成では、受光量が一定となる範囲が狭く、その変動幅も大きい。そのため、ズームの全領域で閃光発光管１１２からの一定発光量に対して受光素子の受光量をほぼ一定とするためには、閃光ユニットのズーム位置に応じてセンサ感度を切換えたり、光量判定レベルを調整したり、（特開平５-１２７２２６号公報記載のように）集光レンズ背面のテーパ部、遮光テープの形状を調整しなければならない。
しかし、受光センサ１８を反射傘１４の背後に配置した実施例の構成では、広範囲のズーム位置で閃光発光管１２からの一定発光量に対して受光素子の受光量がほぼ一定になるから、閃光発光管の発光制御も容易であり、従来例に対して顕著な効果が得られる。
つまり、たとえ閃光発光管１２を発光させるためのメインコンデンサ電圧が変動したり、周囲の温度が変化して閃光発光管からの発光量が変動しても、受光素子１８がその発光をモニタ−して必要発光量が発光されるまで閃光発光管が発光し続け、受光素子の出力からその受光量が十分なものであると判断したとき、閃光発光管の発光を停止すればよいから閃光発光管の発光が容易に制御できる。 Thus, in the conventional configuration in which the light receiving elements are arranged on the outer wall of the frame body 120, the range in which the amount of received light is constant is narrow and the fluctuation range is large. Therefore, in order to make the amount of light received by the light receiving element substantially constant with respect to the constant amount of light emitted from the flash light emitting tube 112 in the entire zoom range, the sensor sensitivity is switched according to the zoom position of the flash unit, or the light quantity determination level. Or the shape of the tapered portion on the back surface of the condenser lens and the shape of the light shielding tape (as described in JP-A-5-127226) must be adjusted.
However, in the configuration of the embodiment in which the light receiving sensor 18 is arranged behind the reflector 14, the amount of light received by the light receiving element is substantially constant with respect to the constant amount of light emitted from the flash light emitting tube 12 in a wide range of zoom positions. The light emission control of the arc tube is easy, and a remarkable effect can be obtained compared to the conventional example.
That is, even if the main capacitor voltage for causing the flash tube 12 to change or the ambient temperature changes and the amount of light emitted from the flash tube changes, the light receiving element 18 monitors the light emission. The flash tube continues to emit light until the required amount of light is emitted, and when it is determined from the output of the light receiving element that the amount of received light is sufficient, it is sufficient to stop the flash tube from emitting light. Can be easily controlled.

次に、実施例の閃光ユニット１５の駆動手段３０について述べると、図３に示すように、駆動手段３０は、枠体２０に取付けられたモータ３２と、モータ出力軸のピニオンギヤ３２ａに噛合されたスクリューシャフト３４とを備えて構成されている。そして、スクリューシャフト３４の両端は、非ねじ部とされて枠体２０の軸受部２０ａ，２０ｂに回転自在に支持され、中央のねじ部は反射傘１４のナット部材１４ｂに噛合されている。
スクリューシャフト３４、ナット部材１４ｂが噛合しているため、モータ３２が駆動してスクリューシャフト３４が回転すると、閃光ユニット１５は撮影レンズの焦点距離に対応したズーム位置に移動する。そして、所定の照射角度で閃光発光管１２を閃光させて適切な露出でストロボ撮影がなされる。 Next, the drive means 30 of the flash unit 15 of the embodiment will be described. As shown in FIG. 3, the drive means 30 is engaged with a motor 32 attached to the frame body 20 and a pinion gear 32a of the motor output shaft. The screw shaft 34 is provided. Both ends of the screw shaft 34 are non-threaded portions and are rotatably supported by the bearing portions 20 a and 20 b of the frame body 20, and the central threaded portion is engaged with the nut member 14 b of the reflector 14.
Since the screw shaft 34 and the nut member 14b are engaged, when the motor 32 is driven to rotate the screw shaft 34, the flash unit 15 moves to a zoom position corresponding to the focal length of the photographing lens. Then, the flash emission tube 12 is flashed at a predetermined irradiation angle, and flash photography is performed with an appropriate exposure.

上述した実施例は本発明を説明するためのものであり、本発明は実施例に限定されるものではなく、本発明の要旨を逸脱しない範囲内において、変形や応用が可能であることはいうまでもない。   The above-described embodiments are for explaining the present invention, and the present invention is not limited to the embodiments, and it can be modified and applied without departing from the gist of the present invention. Not too long.

本発明によれば、被写体からの反射光の入射をカットし閃光発光器からの光のみを受光素子が受光して、適切な露出で容易に撮影でき、発光を制御して行なう光学系の分野に本発明が広範囲に応用できる。   According to the present invention, the field of an optical system that cuts off the incidence of reflected light from a subject and receives only light from a flash light emitter by a light receiving element, can be easily photographed with appropriate exposure, and controls light emission. In addition, the present invention can be widely applied.

本発明の実施例１に係るストロボ装置の概略縦断面図を示し、（Ａ）はズームワイド、（Ｂ）はズームテレでのストロボ装置をそれぞれ示し、（Ｃ）は集光レンズ、ワイドパネルを除去した正面図を示す。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic longitudinal sectional view of a strobe device according to a first embodiment of the present invention, (A) shows a zoom wide strobe device, (B) shows a zoom tele strobe device, and (C) shows a condenser lens and a wide panel removed. A front view is shown. 閃光ユニットのズーム位置による受光素子の受光量の変化を示す。The change of the light reception amount of the light receiving element according to the zoom position of the flash unit is shown. 閃光ユニットの駆動手段を加えたストロボ装置の破断断面図を示す。FIG. 2 is a cutaway sectional view of a strobe device to which a flash unit driving means is added. 従来のストロボ装置の概略縦断面図を示し、（Ａ）はズームワイド、（Ｂ）はズームテレでのストロボ装置をそれぞれ示す。The schematic longitudinal cross-sectional view of the conventional strobe device is shown, (A) shows zoom wide, and (B) shows the strobe device with zoom tele.

符号の説明Explanation of symbols

１０，１００ ストロボ装置
１２，１１２ 閃光発光管
１４，１１４ 反射傘
１５，１１５ 閃光ユニット
１６，１１６ 集光レンズ（光学素子）
１８，１１８ 受光素子
２０，１２０ 枠体
３０ 駆動手段
３２ モータ
３４ スクリューシャフト

10,100 Strobe device 12,112 Flash arc tube 14,114 Reflector 15,115 Flash unit 16,116 Condensing lens (optical element)
18, 118 Light receiving element 20, 120 Frame 30 Driving means 32 Motor 34 Screw shaft

Claims (1)

枠体と、
閃光発光管と、
凹面状に形成され、凹面の反射面で形成される空間内部に上記閃光発光管を支持し、上記閃光発光管からの閃光を被写体側に照射するため上記枠体内に設けられた反射傘と、
上記反射傘の反射面と対向するように配置され、上記閃光発光管からの光が透過して被写体に配光を行なう上記枠体の開口部に設けられた光学素子と、
上記反射傘にその受光面を臨ませて、被写体からの反射光に対して上記反射傘の影となる範囲である上記反射面の反対側に固定され、上記閃光発光管から上記光学素子に照射されて反射された光を受光する受光素子と、
上記反射傘を上記光学素子に対して相対的に移動させる移動手段と、
を備えたことを特徴とするズームストロボ装置。 A frame,
A flash tube,
A reflector formed in a concave shape, supporting the flash light emitting tube in a space formed by a concave reflecting surface, and a reflector provided in the frame for irradiating the subject with flash light from the flash light emitting tube;
An optical element that is disposed so as to face the reflecting surface of the reflector and that is provided at the opening of the frame that transmits light from the flashlight tube and distributes the light to the subject;
To face the light receiving surface to said reflector, fixed to the opposite side of the anti-reflecting surface is a range of the shadow of the reflector relative to the light reflected from the object, in the optical element from said flash light emission tube A light receiving element for receiving the light reflected and irradiated;
Moving means for moving the reflector relative to the optical element;
A zoom strobe device comprising:
JP2004350259A 2004-12-02 2004-12-02 Strobe device Expired - Fee Related JP4649185B2 (en)

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Publication number Priority date Publication date Assignee Title
JP2010262064A (en) * 2009-04-30 2010-11-18 Nikon Corp Power source device
CN106909015A (en) * 2015-12-22 2017-06-30 赵以恒 A kind of ultra-wide angle flash lamp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6266239A (en) * 1985-09-19 1987-03-25 Canon Inc Flash photographing device
JPH05127226A (en) * 1991-11-05 1993-05-25 West Electric Co Ltd Storoboscopic device
JPH0943684A (en) * 1995-07-28 1997-02-14 Canon Inc Camera system
JPH1164939A (en) * 1997-08-21 1999-03-05 Nikon Corp Electronic flashing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6266239A (en) * 1985-09-19 1987-03-25 Canon Inc Flash photographing device
JPH05127226A (en) * 1991-11-05 1993-05-25 West Electric Co Ltd Storoboscopic device
JPH0943684A (en) * 1995-07-28 1997-02-14 Canon Inc Camera system
JPH1164939A (en) * 1997-08-21 1999-03-05 Nikon Corp Electronic flashing device

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