JP2001174884A - Stroboscopic photographing device - Google Patents
Stroboscopic photographing deviceInfo
- Publication number
- JP2001174884A JP2001174884A JP35790299A JP35790299A JP2001174884A JP 2001174884 A JP2001174884 A JP 2001174884A JP 35790299 A JP35790299 A JP 35790299A JP 35790299 A JP35790299 A JP 35790299A JP 2001174884 A JP2001174884 A JP 2001174884A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light emission
- distance
- subject
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Exposure Control For Cameras (AREA)
- Focusing (AREA)
- Stroboscope Apparatuses (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はストロボ撮影装置に
関し、特に赤目を防止することができるストロボ撮影装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flash photography device, and more particularly to a flash photography device capable of preventing red-eye.
【０００２】[0002]
【従来の技術】ストロボを用いて閃光を被写体に照射し
てカラー撮影を行う場合、瞳の網膜からの反射光が赤み
を帯び、その結果、人の瞳が赤色に写る、いわゆる、赤
目現象が生じることがあり、従来より赤目防止のため様
々な技術が開示されている。赤目防止の技術としては、
本撮影が行われる前にフラッシュを予備発光させること
により瞳孔を収縮させ、瞳孔が収縮した後に撮影のため
の本発光を行うことにより赤目を防止する方法が一般的
によく知られている。このような予備発光を用いた赤目
防止技術の一つとして、実公平７−２２６６４号公報に
開示された赤目防止制御装置がある。これは本発光に先
だって所定時間間隔で複数回発光装置を作動させ、一定
期間後、本発光を行うことにより１回の予備発光で瞳孔
が十分小さくならない人物をストロボ撮影する場合であ
っても赤目を防止することができるものである。2. Description of the Related Art When performing color photography by irradiating a subject with flash light using a strobe, the reflected light from the retina of the pupil becomes reddish, and as a result, the so-called red-eye phenomenon occurs in which the human pupil appears in red. Various techniques have been disclosed for preventing red-eye. Red-eye prevention technology
It is generally well known that the pupil is contracted by pre-flashing the flash before the main photographing is performed, and red-eye is prevented by performing main light emission for photographing after the pupil is contracted. As one of the red-eye prevention techniques using such preliminary light emission, there is a red-eye prevention control device disclosed in Japanese Utility Model Publication No. Hei 7-22664. This is because even if a person who does not make the pupil sufficiently small with one preliminary light emission by performing the main light emission after a certain period of time by performing the main light emission a plurality of times at a predetermined time interval prior to the main light emission, even if flash photography is performed, Can be prevented.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、実公平
７−２２６６４号公報に記載された従来の赤目防止制御
装置は赤目防止のための予備発光と撮影のための本発光
の２回の発光が必要であり、また、被写体までの距離及
び被写体輝度に応じて予備発光を行うか否かを決定して
いるので、赤目が発生する最短距離以遠に被写体が存在
すれば、被写体の存在位置に関係なく予め定めた照度
（ガイドナンバー）の予備発光を行うよう構成している
ので、被写体の距離に応じた赤目発生防止のために効果
的な照度の予備発光を行うことができないという問題点
があった。本発明は、予備発光と本発光とを発光として
は一回の発光で行うと共に、被写体までの距離に応じて
予備発光の光量を調整することにより被写体までの距離
に応じて赤目を防止することができる最適な光量とする
ことができるストロボ撮影装置を提供することを目的と
する。However, the conventional red-eye prevention control device described in Japanese Utility Model Publication No. Hei 7-22664 requires two flashes, a preliminary flash for red-eye prevention and a main flash for photographing. Further, since whether or not to perform preliminary light emission is determined according to the distance to the subject and the subject brightness, if the subject exists beyond the shortest distance at which red-eye occurs, regardless of the location of the subject Since the pre-light emission of the predetermined illuminance (guide number) is performed, there is a problem that the pre-light emission of the effective illuminance cannot be performed in order to prevent the occurrence of red-eye according to the distance to the subject. . In the present invention, the preliminary light emission and the main light emission are performed as a single light emission, and the amount of the preliminary light emission is adjusted according to the distance to the subject, thereby preventing red-eye according to the distance to the subject. It is an object of the present invention to provide a strobe photographing device capable of achieving an optimum light amount that can be used.
【０００４】[0004]
【課題を解決するための手段】本発明に係るストロボ撮
影装置の請求項１記載の発明は、被写体に閃光を発光す
る発光管と、発光管を発光させるための電荷が充電され
るメインコンデンサと、メインコンデンサから発光管に
流れる電流を制御する光電流制御手段とを備え、光電流
制御手段で発光管に流れる電流量を制御することにより
発光量を制御して、人間の瞳孔を縮小させるための赤目
防止用予備発光と撮影本発光を発光している光としては
発光停止することなく連続した一回の発光として行うこ
とを特徴とする。また、本発明に係るストロボ撮影装置
の請求項２記載の発明は、上記請求項１記載の発明に加
え、被写体までの距離を測定する測距手段を備え、測距
手段により被写体距離を測定し、光電流制御手段で発光
管に流れる電流量を制御することにより発光量を制御し
て、赤目防止用予備発光として被写体距離に対応した赤
目防止に必要な光量を発光することを特徴とする。ま
た、本発明に係るストロボ撮影装置の請求項３記載の発
明は、被写体に閃光を発光する発光管と、発光管を発光
させるための電荷が充電されるメインコンデンサと、メ
インコンデンサから発光管に流れる電流を制御する光電
流制御手段と、被写体像を光電変換する撮像素子とを備
え、光電流制御手段で発光管に流れる電流量を制御する
ことにより発光量を制御して、撮像素子出力を読み出し
て撮影する際の露光量を演算するための露光量演算用予
備発光と撮影本発光を発光している光としては発光停止
することなく連続した一回の発光として行うことを特徴
とする。また、本発明に係るストロボ撮影装置の請求項
４記載の発明は、請求項３記載の発明に加え、被写体ま
での距離を測定する測距手段を備え、測距手段により被
写体距離を測定し、光電流制御手段で発光管に流れる電
流量を制御することにより発光量を制御して、露光量演
算用予備発光として被写体距離に対応した露光量演算に
必要な光量を発光することを特徴とする。According to a first aspect of the present invention, there is provided a strobe photographing apparatus according to the present invention, comprising: a light emitting tube which emits flash light to a subject; and a main capacitor which is charged with electric charge for causing the light emitting tube to emit light. Light current control means for controlling the current flowing from the main capacitor to the arc tube, and controlling the amount of current by controlling the amount of current flowing to the arc tube with the light current control means to reduce the human pupil. The light emitting the preliminary light emission for preventing red-eye and the main light emission is performed as one continuous light emission without stopping the light emission. A second aspect of the present invention provides a strobe photographing apparatus according to the present invention, further comprising a distance measuring unit for measuring a distance to a subject, wherein the subject distance is measured by the distance measuring unit. The amount of light emission is controlled by controlling the amount of current flowing through the arc tube by the photocurrent control means, and the amount of light necessary for red-eye prevention corresponding to the subject distance is emitted as preliminary red-eye prevention light emission. Further, the invention according to claim 3 of the strobe photographing apparatus according to the present invention is characterized in that an arc tube for emitting a flash to a subject, a main condenser charged with electric charge for causing the arc tube to emit light, A photocurrent control means for controlling a flowing current, and an image sensor for photoelectrically converting a subject image are provided. Light emitted from the preliminary light emission for exposure amount calculation for calculating the amount of exposure when reading and photographing and the main light emission is emitted as one continuous light emission without stopping light emission. Further, according to a fourth aspect of the present invention, in addition to the third aspect, the strobe photographing apparatus further includes a distance measuring unit for measuring a distance to the subject, and measures a subject distance by the distance measuring unit. The amount of light is controlled by controlling the amount of current flowing through the arc tube by the light current control means, and the amount of light required for the exposure amount calculation corresponding to the subject distance is emitted as preliminary light emission for the exposure amount calculation. .
【０００５】また、本発明に係るストロボ撮影装置の請
求項５記載の発明は、被写体に閃光を発光する発光管
と、発光管を発光させるための電荷が充電されるメイン
コンデンサと、ストロボ発光のトリガ信号をパルス制御
するトリガパルス制御手段とを備え、前記トリガパルス
制御手段で短パルスを繰り返す低光量発光と、１パルス
の通常発光とを連続して発光させることにより人間の瞳
孔を縮小させるための赤目防止用予備発光と撮影本発光
とを発行している光としては発光停止することなく連続
した一回の発光として行うことを特徴とする。また、本
発明に係るストロボ撮影装置の請求項６記載の発明は、
請求項５記載の発明に加え、被写体までの距離を測定す
る測距手段を備え、測距手段により被写体距離を測定
し、トリガ信号パルス制御手段で被写体距離に対応して
トリガ信号の短パルスのパルス数を制御することによ
り、赤目防止用発光として被写体距離に対応した赤目防
止に必要な光量を発光することを特徴とする。また、本
発明に係るストロボ撮影装置の請求項７記載の発明は、
請求項５記載の発明に加え、被写体までの距離を測定す
る側距手段を備え、測距手段により被写体距離を測定
し、トリガ信号パルス制御手段で被写体距離に対応して
トリガ信号の短パルスのパルス幅を制御することによ
り、赤目防止用予備発光として被写体距離に対応した赤
目防止に必要な光量を発光することを特徴とする。ま
た、本発明に係るストロボ撮影装置の請求項８記載の発
明は、被写体に閃光を発光する発光管と、発光管を発光
させるための電荷が充電されたメインコンデンサと、ス
トロボ発光のトリガ信号をパルス制御するトリガ信号パ
ルス制御手段を備え、前記トリガ信号パルス制御手段で
短パルスを繰り返す低光量発光と1 パルスの通常発光を
連続的に発光させることにより、撮像素子出力を読み出
して撮影する際の露光量を演算するための露光量演算用
予備発光と撮影本発光を発光している光としては発光停
止することなく連続した一回の発光として行うことを特
徴とする。また、本発明に係るストロボ撮影装置の請求
項９記載の発明は、請求項８記載の発明に加え、被写体
までの距離を測定する測距手段を備え、測距手段により
被写体距離を測定し、トリガ信号パルス制御手段で被写
体距離に対応してトリガ信号の短パルスのパルス数を制
御することにより、赤目防止用発光として被写体距離に
対応した赤目防止に必要な光量を発光することを特徴と
する。また、本発明に係るストロボ撮影装置の請求項１
０記載の発明は、請求項５記載の発明に加え、被写体ま
での距離を測定する側距手段を備え、測距手段により被
写体距離を測定し、トリガ信号パルス制御手段で被写体
距離に対応してトリガ信号の短パルスのパルス幅を制御
することにより、赤目防止用予備発光として被写体距離
に対応した赤目防止に必要な光量を発光することを特徴
とする。Further, according to a fifth aspect of the present invention, there is provided a strobe photographing apparatus according to the present invention, comprising: a light emitting tube for emitting a flash of light to a subject; a main condenser charged with electric charge for causing the light emitting tube to emit light; Trigger pulse control means for pulse-controlling a trigger signal, wherein the trigger pulse control means reduces the human pupil by continuously emitting low-light-emission light, which repeats short pulses, and one-pulse normal light emission. The light that emits the preliminary light emission for preventing red-eye and the main light emission is performed as one continuous light emission without stopping light emission. Further, the invention according to claim 6 of the strobe photographing apparatus according to the present invention is as follows.
In addition to the invention according to claim 5, further comprising a distance measuring means for measuring a distance to the object, measuring the object distance by the distance measuring means, and a trigger signal pulse control means for controlling a short pulse of the trigger signal corresponding to the object distance. By controlling the number of pulses, a light amount required for red-eye prevention corresponding to the subject distance is emitted as red-eye prevention light emission. Further, the invention according to claim 7 of the strobe photographing apparatus according to the present invention is characterized in that:
In addition to the invention according to claim 5, further comprising side distance measuring means for measuring the distance to the object, measuring the object distance by the distance measuring means, and trigger signal pulse control means for controlling the short pulse of the trigger signal corresponding to the object distance. By controlling the pulse width, an amount of light required for red-eye prevention corresponding to the subject distance is emitted as red-eye prevention preliminary light emission. Further, according to the present invention, there is provided a strobe photographing apparatus according to the present invention, wherein an arc tube for emitting a flash to a subject, a main capacitor charged with electric charge for causing the arc tube to emit light, and a trigger signal for strobe emission are provided. A trigger signal pulse control unit for performing pulse control is provided, and the trigger signal pulse control unit continuously emits a low light quantity light emission repeating a short pulse and a normal light emission of one pulse, thereby reading out the output of the image sensor and taking an image. The light emitting the preliminary light emission for calculating the exposure amount and the main light emission for calculating the exposure amount are emitted as one continuous light without stopping the light emission. The strobe photographing apparatus according to the ninth aspect of the present invention further includes, in addition to the invention according to the eighth aspect, a distance measuring unit that measures a distance to a subject, and measures a subject distance by the distance measuring unit. By controlling the number of short pulses of the trigger signal in accordance with the subject distance by the trigger signal pulse control means, the light required for red-eye prevention corresponding to the subject distance is emitted as red-eye prevention emission. . Also, a strobe photographing apparatus according to the present invention is claimed in claim 1.
The invention described in claim 0 further comprises side distance measuring means for measuring the distance to the subject, wherein the distance measuring means measures the subject distance, and the trigger signal pulse control means corresponds to the subject distance in addition to the invention described in claim 5. By controlling the pulse width of the short pulse of the trigger signal, the amount of light necessary for red-eye prevention corresponding to the subject distance is emitted as red-eye prevention preliminary light emission.
【０００６】[0006]
【発明の実施の形態】以下、本発明の一実施形態に係る
ストロボ撮影装置について図面を参照して説明する。図
１は本発明の実施例であるストロボ撮影装置の構成を示
す図であり、１はストロボ撮影装置の制御を司るＣＰ
Ｕ、２は撮影レンズ、ＡＦモジュール及びＣＣＤ等から
なる撮像素子ユニット、３は撮像素子ユニット内のＡＦ
モジュールを用いて撮影範囲内の被写体距離データを得
る測距手段、４は赤目防止用閃光並びに撮影の際の本発
光を行う発光管、５は発光管４の充電電荷を蓄えるメイ
ンコンデンサ、６は発光管４の発光開始を制御するトリ
ガ回路、７はメインコンデンサ５から発光管４に供給さ
れる光電流を制御するための光電流制御手段である。こ
のように構成したストロボ撮影装置の動作について図
１、図２（ａ）、（ｂ）、（ｃ）を用いて説明する。ま
ず、ストロボ撮影時には図２（ａ）に示したように、Ｃ
ＰＵ１からトリガ回路６へ発光開始信号を出力し、メイ
ンコンデンサ５に充電された電荷が発光管４に供給され
る。その際、ＣＰＵ１は図２（ｂ）に示すように発光開
始直後はメインコンデンサ５から発光管４に流れる電流
を一定期間少なくするよう光電流制御手段７を制御し、
その結果、図２（ｃ）に示すように発光管４から照射さ
れる閃光の光量を一定期間少なくし、赤目防止用予備発
光を行うと共に、当該予備発光により被写体を照射した
際に撮像素子ユニット２のＣＣＤ等の撮像素子のデータ
を読み出し、撮影露光量の演算等を行う。その後、予備
発光に連続し、光電流制御手段７を制御することによっ
て、メインコンデンサ５から発光管４に流れる電流を最
大とし、図２（ｃ）に示したように発光量の大きい本発
光を行い撮影を行う。このように予備発光と撮影のため
の本発光とを連続した一回の発光として行い、また予備
発光を行っている際に測距手段３により被写体までの距
離を測定し、当該被写体距離に応じ赤目防止に必要な光
量または露光演算に必要な光量をＣＰＵ１で計算し、該
計算された光量となるように光電流制御手段により電流
量または予備発光時間を制御するので、被写体の距離に
応じて、赤目防止のための最適光量または露光演算に必
要な予備発光を行うことができる。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a flash photographing apparatus according to an embodiment of the present invention. FIG. 1 is a diagram showing a configuration of a flash photographing apparatus according to an embodiment of the present invention. Reference numeral 1 denotes a CP which controls a flash photographing apparatus.
U, 2 are an imaging element unit including a photographic lens, an AF module, a CCD, etc., 3 is an AF in the imaging element unit.
Distance measuring means for obtaining subject distance data within a photographing range using a module, 4 is a flash for preventing red-eye and a light emitting tube for performing main light emission at the time of photographing, 5 is a main capacitor for storing a charge of the light emitting tube 4, and 6 is A trigger circuit 7 for controlling the start of light emission of the arc tube 4 is a photocurrent control means for controlling a photocurrent supplied from the main capacitor 5 to the arc tube 4. The operation of the flash photographing apparatus thus configured will be described with reference to FIGS. 1, 2A, 2B, and 2C. First, at the time of flash photography, as shown in FIG.
An emission start signal is output from the PU 1 to the trigger circuit 6, and the electric charge charged in the main capacitor 5 is supplied to the arc tube 4. At that time, as shown in FIG. 2B, the CPU 1 controls the photocurrent control means 7 so as to reduce the current flowing from the main capacitor 5 to the arc tube 4 for a certain period immediately after the start of light emission,
As a result, as shown in FIG. 2C, the amount of flash light emitted from the light emitting tube 4 is reduced for a certain period of time to perform pre-flash for red-eye prevention, and to perform image pickup when the subject is irradiated by the pre-flash. The data of the image pickup device such as the CCD 2 is read out, and the exposure amount is calculated. Thereafter, by continuing the preliminary light emission and controlling the photocurrent control means 7, the current flowing from the main capacitor 5 to the arc tube 4 is maximized, and the main light emission having a large light emission amount as shown in FIG. And shoot. As described above, the preliminary light emission and the main light emission for photographing are performed as one continuous light emission, and the distance to the subject is measured by the distance measuring unit 3 during the preliminary light emission, and the preliminary light emission is performed according to the subject distance. The amount of light required for preventing red-eye or the amount of light required for exposure calculation is calculated by the CPU 1, and the amount of current or the preliminary light emission time is controlled by the photocurrent control means so as to be the calculated amount of light. In addition, it is possible to perform a preliminary light emission necessary for an optimal light amount or exposure calculation for preventing red-eye.
【０００７】図３は本発明の他の実施例であるストロボ
撮影装置の構成を示す図であり、前記図１に示した実施
例と異なる点は光電流制御手段を省略した点である。す
なわち、本実施例においては光電流制御手段による発光
管への光電流を制御する代わりにＣＰＵ１に内臓したト
リガパルス制御手段によりトリガ回路６の動作を制御
し、発光管４の発光を行うものである。このように構成
したストロボ撮影装置の動作について図３、図４
（ａ）、（ｂ）を用いて説明する。まず、ストロボ撮影
時には図４（ａ）に示したように、ＣＰＵ１内のトリガ
パルス制御手段からトリガ回路６へ発光信号パルスを出
力し、メインコンデンサ５に充電された電荷が発光管４
に供給される。発光開始直後は発光管４から照射される
光量が少ない低光量発光状態で発光するよう短いパルス
幅の発光信号パルスが周期的にＣＰＵ１のトリガパルス
制御手段からトリガ回路６へ供給されるので図４（ｂ）
に示すように発光管４から照射される閃光の光量を一定
期間少なくし、赤目防止用予備発光を行うことができ
る。また光量の少ない閃光により被写体を照射し、撮像
素子ユニット２のＣＣＤ等の撮像素子データを読み出し
て撮影露光量の演算等を行うことも可能である。その
後、予備発光に連続して撮影のための本発光を行うため
に十分なパルス幅の発光信号パルスがＣＰＵ１のトリガ
パルス制御手段からトリガ回路６に供給され、図４
（ｂ）に示したように発光量の大きい本発光を行い撮影
を行う。このように予備発光と撮影のための本発光とを
連続した一回の発光として行い、また予備発光を行って
いる際に測距手段３により被写体までの距離を測定し、
当該被写体距離に応じ赤目防止に必要な光量又は／及び
露光演算に必要な光量をＣＰＵ１で計算し、該計算され
た光量となるようにトリガ回路６に供給される発光信号
パルスのパルス数を制御して予備発光を行うので被写体
の距離に応じて、赤目防止のための最適光量又は／及び
露光演算に必要な光量の予備発光を行うことができる。
また、図５（ａ）に示すように、ＣＰＵ１にて赤目防止
に必要な光量又は／及び露光演算に必要な光量を計算し
た結果、ＣＰＵ１からトリガ回路６に供給されるパルス
幅を可変し、所望の光量の予備発光を行うようにしても
よい。この場合、図５（ｂ）に示すようにトリガ回路６
に供給されるパルス幅に応じて発光管４から照射される
光量が変化させることができる。FIG. 3 is a diagram showing the structure of a flash photographing apparatus according to another embodiment of the present invention. The difference from the embodiment shown in FIG. 1 is that the photocurrent control means is omitted. That is, in the present embodiment, instead of controlling the photocurrent to the arc tube by the photocurrent control unit, the operation of the trigger circuit 6 is controlled by the trigger pulse control unit incorporated in the CPU 1 so that the arc tube 4 emits light. is there. FIGS. 3 and 4 show the operation of the flash photographing apparatus having the above-described configuration.
This will be described with reference to (a) and (b). First, at the time of flash photography, as shown in FIG. 4A, a light emission signal pulse is output from the trigger pulse control means in the CPU 1 to the trigger circuit 6, and the electric charge charged in the main capacitor 5 is discharged to the light emission tube 4
Supplied to Immediately after the start of light emission, an emission signal pulse having a short pulse width is periodically supplied from the trigger pulse control means of the CPU 1 to the trigger circuit 6 so as to emit light in a low light emission state in which the amount of light emitted from the arc tube 4 is small. (B)
As shown in (1), the amount of flash light emitted from the arc tube 4 can be reduced for a certain period of time, so that red-eye prevention preliminary light emission can be performed. It is also possible to irradiate the subject with a flash having a small amount of light, read out image sensor data such as a CCD of the image sensor unit 2, and calculate a photographing exposure amount. Thereafter, a light emission signal pulse having a pulse width sufficient for performing main light emission for photographing continuously from the preliminary light emission is supplied from the trigger pulse control means of the CPU 1 to the trigger circuit 6.
As shown in (b), the main light emission having a large light emission amount is performed to perform photographing. As described above, the preliminary light emission and the main light emission for photographing are performed as one continuous light emission, and the distance to the subject is measured by the distance measuring means 3 during the preliminary light emission.
The amount of light required for red-eye prevention and / or the amount of light required for exposure calculation is calculated by the CPU 1 according to the subject distance, and the number of light-emitting signal pulses supplied to the trigger circuit 6 is controlled so as to be the calculated amount of light. Since the preliminary light emission is performed, the preliminary light emission of the optimum light amount for preventing red-eye and / or the light amount required for the exposure calculation can be performed according to the distance to the subject.
Further, as shown in FIG. 5A, as a result of calculation of the amount of light required for red-eye prevention and / or the amount of light required for exposure calculation by the CPU 1, the pulse width supplied from the CPU 1 to the trigger circuit 6 is varied. Preliminary light emission of a desired light amount may be performed. In this case, as shown in FIG.
The amount of light emitted from the arc tube 4 can be changed according to the pulse width supplied to the light emitting device.
【０００８】[0008]
【発明の効果】請求項１記載の発明によれば、光電流制
御手段によりメインコンデンサから発光管に流れる電流
を制御して、連続的に発光量を制御することができるの
で、赤目防止用予備発光と撮影本発光とを発光している
光としては発光停止することなく連続した一回の発光と
して行うことができる。請求項２記載の発明によれば、
請求項１記載のストロボ撮影装置において、被写体距離
に対応して光電流制御手段によりメインコンデンサから
発光管に流れる電流を制御して発光量を調整することが
できるので、赤目防止用予備発光として被写体距離に対
応した必要光量のみ発光することができる。請求項３記
載の発明によれば、光電流制御手段によりメインコンデ
ンサから発光管に流れる電流を制御して連続的に発光量
を調整することができるので、露光量演算用予備発光と
撮影本発光を発光している光としては発光停止すること
なく連続した一回の発光として行うことができる。請求
項４記載の発明によれば、請求項３記載のストロボ撮影
装置において、被写体距離に対応して光電流制御手段に
よりメインコンデンサから発光管に流れる電流を制御し
て発光量を制御しているので、露光量演算用予備発光と
して被写体距離に対応した必要光量のみ発光することが
できる。請求項５記載の発明によれば、ストロボ発光信
号をパルス制御することにより連続的に発光量を制御し
ているので、赤目防止用予備発光と撮影本発光を発光し
ている光としては発光停止することなく連続した一回の
発光として行うことができる。請求項６及び７記載の発
明によれば、被写体距離に対応してストロボ発光信号を
パルス制御することにより発光量を制御しているので赤
目防止用予備発光として被写体距離に対応した必要光量
のみ発光することができる。請求項８記載の発明によれ
ば、ストロボ発光信号をパルス制御することにより連続
的に発光量を制御しているので、露光量演算用予備発光
と撮影本発光を発光している光としては発光停止するこ
となく連続した一回の発光として行うことができる。請
求項９及び１０記載の発明によれば、被写体距離に対応
してストロボ発光信号をパルス制御することにより発光
量を制御しているので、露光用演算用予備発光として被
写体距離に対応した必要光量のみ発光することができ
る。According to the first aspect of the present invention, the amount of light emission can be continuously controlled by controlling the current flowing from the main capacitor to the arc tube by the photocurrent control means. The light that emits the light emission and the main light emission can be emitted as one continuous light emission without stopping the light emission. According to the invention described in claim 2,
2. The strobe photographing apparatus according to claim 1, wherein the amount of light emission can be adjusted by controlling the current flowing from the main condenser to the arc tube by the photocurrent control means in accordance with the object distance. Only the required light amount corresponding to the distance can be emitted. According to the third aspect of the present invention, the amount of light emission can be continuously adjusted by controlling the current flowing from the main capacitor to the arc tube by the photocurrent control means. Can be performed as one continuous light emission without stopping light emission. According to the fourth aspect of the present invention, in the flash photographing apparatus according to the third aspect, the amount of light emission is controlled by controlling the current flowing from the main condenser to the arc tube by the photocurrent control means in accordance with the subject distance. Therefore, it is possible to emit only the necessary amount of light corresponding to the subject distance as the preliminary light emission for the exposure amount calculation. According to the fifth aspect of the present invention, since the amount of light emission is continuously controlled by pulse-controlling a strobe light emission signal, light emission of the preliminary light emission for red-eye prevention and the main light emission is stopped. It can be performed as one continuous light emission without performing. According to the sixth and seventh aspects of the present invention, since the amount of light emission is controlled by pulse-controlling the strobe light emission signal in accordance with the object distance, only the required amount of light corresponding to the object distance is emitted as preliminary light emission for preventing red-eye. can do. According to the eighth aspect of the present invention, since the amount of light emission is continuously controlled by pulse-controlling the strobe light emission signal, the light emitting the preliminary light emission for the exposure amount calculation and the main light emission is emitted. Light emission can be performed as one continuous light emission without stopping. According to the ninth and tenth aspects of the present invention, the light emission amount is controlled by pulse-controlling the strobe light emission signal in accordance with the subject distance. Only light can be emitted.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明に係るストロボ撮影装置の一実施例の構
成を示すブロック図。FIG. 1 is a block diagram showing the configuration of an embodiment of a flash photography apparatus according to the present invention.
【図２】（ａ）は本発明に係るストロボ撮影装置の発光
信号の状態を示す図、（ｂ）は本発明に係るストロボ撮
影装置の発光管電流量を示す図、（ｃ）は本発明に係る
ストロボ撮影装置の発光量を示す図。2A is a diagram showing a state of a light emission signal of a strobe photographing device according to the present invention, FIG. 2B is a diagram showing an arc tube current amount of the strobe photographing device according to the present invention, and FIG. FIG. 3 is a diagram showing a light emission amount of the flash photographing apparatus according to FIG.
【図３】本発明に係るストロボ撮影装置の他の実施例の
構成を示す図。FIG. 3 is a diagram showing the configuration of another embodiment of a flash photography apparatus according to the present invention.
【図４】（ａ）は本発明に係るストロボ撮影装置の発光
信号の状態を示す図、（ｂ）は本発明に係るストロボ撮
影装置の発光量を示す図。4A is a diagram showing a state of a light emission signal of a strobe photographing device according to the present invention, and FIG. 4B is a diagram showing a light emission amount of the strobe photographing device according to the present invention.
【図５】（ａ）は本発明に係るストロボ撮影装置の発光
信号の状態を示す図、（ｂ）は本発明に係るストロボ撮
影装置の発光量を示す図。5A is a diagram illustrating a state of a light emission signal of a strobe photographing device according to the present invention, and FIG. 5B is a diagram illustrating a light emission amount of the strobe photographing device according to the present invention.
１・・・ＣＰＵ（トリガパルス制御手段）、 ２・・
・撮像素子ユニット ３・・・測距手段、４・・・発光管、 ５・・・メイ
ンコンデンサ、６・・・トリガ回路 ７・・・光電流制御手段1 ... CPU (trigger pulse control means), 2 ...
・ Imaging element unit 3 ・ ・ ・ Distance measuring means, 4 ・ ・ ・ Emission tube, 5 ・ ・ ・ Main capacitor, 6 ・ ・ ・ Trigger circuit 7 ・ ・ ・ Photocurrent control means
Claims (10)
管を発光させるための電荷が充電されるメインコンデン
サと、メインコンデンサから発光管に流れる電流を制御
する光電流制御手段とを備え、光電流制御手段で発光管
に流れる電流量を制御することにより発光量を制御し
て、人間の瞳孔を縮小させるための赤目防止用予備発光
と撮影本発光を発光している光としては発光停止するこ
となく連続した一回の発光として行うことを特徴とする
ストロボ撮影装置。A light emitting tube for emitting flash light to a subject, a main capacitor charged with electric charge for causing the light emitting tube to emit light, and a photocurrent control means for controlling a current flowing from the main capacitor to the light emitting tube; The amount of light emission is controlled by controlling the amount of current flowing through the arc tube by the photocurrent control means, and the light emitting the preliminary light emission for red-eye prevention for reducing the human pupil and the main light emission is stopped. A strobe photographing apparatus characterized in that the light emission is performed as one continuous light emission without performing.
備え、測距手段により被写体距離を測定し、光電流制御
手段で発光管に流れる電流量を制御することにより発光
量を制御して、赤目防止用予備発光として被写体距離に
対応した赤目防止に必要な光量を発光することを特徴と
する請求項１記載のストロボ撮影装置。2. A light-emitting device comprising: a distance-measuring means for measuring a distance to a subject; a distance-measuring means measuring a subject distance; and a light-current control means controlling an amount of current flowing through an arc tube to control a light emission amount. 2. The flash photographing apparatus according to claim 1, wherein a light amount necessary for red-eye prevention corresponding to a subject distance is emitted as a red-eye prevention preliminary light emission.
管を発光させるための電荷が充電されるメインコンデン
サと、メインコンデンサから発光管に流れる電流を制御
する光電流制御手段と、被写体像を光電変換する撮像素
子とを備え、光電流制御手段で発光管に流れる電流量を
制御することにより発光量を制御して、撮像素子出力を
読み出して撮影する際の露光量を演算するための露光量
演算用予備発光と撮影本発光を発光している光としては
発光停止することなく連続した一回の発光として行うこ
とを特徴とするストロボ撮影装置。3. An arc tube for emitting flash light to a subject, a main capacitor charged with electric charge for causing the arc tube to emit light, a photocurrent control means for controlling a current flowing from the main capacitor to the arc tube, and a subject image. An imaging element for photoelectrically converting the light, and controlling the amount of current flowing through the arc tube by the photocurrent control means to control the amount of light emission, and to read out the output of the imaging element to calculate the amount of exposure when shooting. A strobe photographing apparatus characterized in that the light emission of the preliminary light emission for the exposure amount calculation and the main light emission is performed as one continuous light emission without stopping the light emission.
備え、測距手段により被写体距離を測定し、光電流制御
手段で発光管に流れる電流量を制御することにより発光
量を制御して、露光量演算用予備発光として被写体距離
に対応した露光量演算に必要な光量を発光することを特
徴とする請求項３記載のストロボ撮影装置。4. A light-emitting device, comprising: a distance measuring means for measuring a distance to a subject; measuring a subject distance by the distance measuring means; and controlling an amount of current flowing through the arc tube by a photocurrent control means. 4. The flash photographing apparatus according to claim 3, wherein a light amount required for an exposure amount calculation corresponding to a subject distance is emitted as preliminary light emission for an exposure amount calculation.
管を発光させるための電荷が充電されるメインコンデン
サと、ストロボ発光のトリガ信号をパルス制御するトリ
ガパルス制御手段とを備え、前記トリガパルス制御手段
で短パルスを繰り返す低光量発光と、１パルスの通常発
光とを連続して発光させることにより人間の瞳孔を縮小
させるための赤目防止用予備発光と撮影本発光とを発行
している光としては発光停止することなく連続した一回
の発光として行うことを特徴とするストロボ撮影装置。5. A trigger tube comprising: an arc tube for emitting a flash of light to a subject; a main capacitor charged with electric charge for causing the arc tube to emit light; and trigger pulse control means for pulse-controlling a trigger signal for strobe light emission; A low-light emission in which short pulses are repeated by the pulse control means and a normal emission of one pulse are continuously emitted, so that a red-eye prevention preliminary emission and a main imaging emission for reducing the human pupil are issued. A strobe photographing apparatus characterized in that light is emitted as one continuous light without stopping light emission.
備え、測距手段により被写体距離を測定し、トリガ信号
パルス制御手段で被写体距離に対応してトリガ信号の短
パルスのパルス数を制御することにより、赤目防止用発
光として被写体距離に対応した赤目防止に必要な光量を
発光することを特徴とする請求項５記載のストロボ撮影
装置。6. A distance measuring means for measuring a distance to a subject, the subject distance is measured by the distance measuring means, and the number of short pulses of a trigger signal is controlled by the trigger signal pulse control means in accordance with the subject distance. 6. The flash photographing apparatus according to claim 5, wherein the amount of light required for red-eye prevention corresponding to the subject distance is emitted as red-eye prevention light emission.
備え、測距手段により被写体距離を測定し、トリガ信号
パルス制御手段で被写体距離に対応してトリガ信号の短
パルスのパルス幅を制御することにより、赤目防止用予
備発光として被写体距離に対応した赤目防止に必要な光
量を発光することを特徴とする請求項５記載のストロボ
撮影装置。7. A side distance measuring means for measuring a distance to a subject, a subject distance is measured by the distance measuring means, and a pulse width of a short pulse of a trigger signal is controlled by a trigger signal pulse control means in accordance with the subject distance. 6. The flash photographing apparatus according to claim 5, wherein an amount of light necessary for red-eye prevention corresponding to a subject distance is emitted as red-eye prevention preliminary light emission.
管を発光させるための電荷が充電されたメインコンデン
サと、ストロボ発光のトリガ信号をパルス制御するトリ
ガ信号パルス制御手段を備え、前記トリガ信号パルス制
御手段で短パルスを繰り返す低光量発光と１パルスの通
常発光を連続的に発光させることにより、撮像素子出力
を読み出して撮影する際の露光量を演算するための露光
量演算用予備発光と撮影本発光を発光している光として
は発光停止することなく連続した一回の発光として行う
ことを特徴とするストロボ撮影装置。8. A trigger tube comprising: an arc tube for emitting a flash of light to a subject; a main capacitor charged with electric charge for causing the arc tube to emit light; and trigger signal pulse control means for pulse-controlling a trigger signal for strobe light emission; Preliminary light emission for exposure amount calculation for calculating the exposure amount when reading out the image sensor output and photographing by continuously emitting a low light amount light emission repeating a short pulse and one pulse normal light emission by a signal pulse control means. A strobe photographing apparatus wherein the main light is emitted as one continuous light without stopping the light emission.
備え、測距手段により被写体距離を測定し、トリガ信号
パルス制御手段で被写体距離に対応してトリガ信号の短
パルスのパルス数を制御することにより、赤目防止用発
光として被写体距離に対応した赤目防止に必要な光量を
発光することを特徴とする請求項８記載のストロボ撮影
装置。9. A distance measuring device for measuring a distance to a subject, the subject distance is measured by the distance measuring device, and the number of short pulses of the trigger signal is controlled by the trigger signal pulse control device in accordance with the subject distance. 9. The flash photographing apparatus according to claim 8, wherein the light emission required for red-eye prevention corresponding to the subject distance is emitted as red-eye prevention light emission.
を備え、測距手段により被写体距離を測定し、トリガ信
号パルス制御手段で被写体距離に対応してトリガ信号の
短パルスのパルス幅を制御することにより、赤目防止用
予備発光として被写体距離に対応した赤目防止に必要な
光量を発光することを特徴とする請求項８記載のストロ
ボ撮影装置。10. A side distance measuring means for measuring a distance to a subject, a subject distance is measured by the distance measuring means, and a pulse width of a short pulse of a trigger signal is controlled by a trigger signal pulse control means in accordance with the subject distance. 9. The flash photographing apparatus according to claim 8, wherein the light emission necessary for the red-eye prevention corresponding to the subject distance is emitted as the red-eye prevention preliminary light emission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35790299A JP2001174884A (en) | 1999-12-16 | 1999-12-16 | Stroboscopic photographing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35790299A JP2001174884A (en) | 1999-12-16 | 1999-12-16 | Stroboscopic photographing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001174884A true JP2001174884A (en) | 2001-06-29 |
Family
ID=18456528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35790299A Pending JP2001174884A (en) | 1999-12-16 | 1999-12-16 | Stroboscopic photographing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001174884A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005309409A (en) * | 2004-03-25 | 2005-11-04 | Fuji Photo Film Co Ltd | Red-eye preventing device, program and recording medium with recorded program |
| JP2007047544A (en) * | 2005-08-11 | 2007-02-22 | Fujifilm Holdings Corp | Strobe apparatus |
| US7333144B2 (en) | 2002-08-02 | 2008-02-19 | Fujifilm Corporation | Electronic flash device and camera having the same |
| KR100973012B1 (en) | 2008-05-14 | 2010-07-30 | 삼성전기주식회사 | Apparatus and method of removing red-eye in digital image |
| JP2012177897A (en) * | 2011-02-03 | 2012-09-13 | Shibakawa Mfg Co Ltd | Photographic illumination amplification device, photographic illumination amplification system, method for operating photographic illumination system, and case including photographic illumination amplification device |
| JP2013007949A (en) * | 2011-06-27 | 2013-01-10 | Kyocera Corp | Photographing apparatus |
| JP2022186729A (en) * | 2019-03-07 | 2022-12-15 | 日本電気株式会社 | Image capturing device, image capturing method, and program |
-
1999
- 1999-12-16 JP JP35790299A patent/JP2001174884A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7333144B2 (en) | 2002-08-02 | 2008-02-19 | Fujifilm Corporation | Electronic flash device and camera having the same |
| JP2005309409A (en) * | 2004-03-25 | 2005-11-04 | Fuji Photo Film Co Ltd | Red-eye preventing device, program and recording medium with recorded program |
| JP2007047544A (en) * | 2005-08-11 | 2007-02-22 | Fujifilm Holdings Corp | Strobe apparatus |
| KR100973012B1 (en) | 2008-05-14 | 2010-07-30 | 삼성전기주식회사 | Apparatus and method of removing red-eye in digital image |
| JP2012177897A (en) * | 2011-02-03 | 2012-09-13 | Shibakawa Mfg Co Ltd | Photographic illumination amplification device, photographic illumination amplification system, method for operating photographic illumination system, and case including photographic illumination amplification device |
| JP2013007949A (en) * | 2011-06-27 | 2013-01-10 | Kyocera Corp | Photographing apparatus |
| JP2022186729A (en) * | 2019-03-07 | 2022-12-15 | 日本電気株式会社 | Image capturing device, image capturing method, and program |
| US11930265B2 (en) | 2019-03-07 | 2024-03-12 | Nec Corporation | Photographing apparatus, photographing method, and storage medium having program stored therein |
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