JPH05158133A - Color temperature information recording camera - Google Patents

Color temperature information recording camera

Info

Publication number
JPH05158133A
JPH05158133A JP3302006A JP30200691A JPH05158133A JP H05158133 A JPH05158133 A JP H05158133A JP 3302006 A JP3302006 A JP 3302006A JP 30200691 A JP30200691 A JP 30200691A JP H05158133 A JPH05158133 A JP H05158133A
Authority
JP
Japan
Prior art keywords
color temperature
flash
light source
light
recording
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
Application number
JP3302006A
Other languages
Japanese (ja)
Inventor
忠雄 ▲高▼木
Tadao Takagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikon Corp
Original Assignee
Nikon Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nikon Corp filed Critical Nikon Corp
Priority to JP3302006A priority Critical patent/JPH05158133A/en
Publication of JPH05158133A publication Critical patent/JPH05158133A/en
Priority to US08/320,976 priority patent/US5452049A/en
Pending legal-status Critical Current

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  • Camera Data Copying Or Recording (AREA)

Abstract

PURPOSE:To provide a color temperature information recording camera for a flash light source, which optimizes the balance of the color temperature of a main object and a background, and records the information of the color temperature. CONSTITUTION:This camera is provided with a color temperature measuring means 101 measuring the color temperature of the natural light of a field, a flash color temperature calculating means 102 operating the color temperature of the light source of a flashing means 100 based on the color temperature of the natural light, a flash color temperature adjusting means 103 adjusting the color temperature of the light source of the flashing means 100 to the color temperature operated by the flash color temperature calculating means 102, and a recording means 105 recording the color temperature information obtained by the operation of the flash color temperature calculating means 102, on a recording medium 104.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、被写界の自然光の色温
度に応じて閃光光源の色温度を調節し、その色温度情報
を記録媒体に記録する閃光光源の色温度情報記録カメラ
に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color temperature information recording camera for a flash light source, which adjusts the color temperature of the flash light source in accordance with the color temperature of natural light in a field and records the color temperature information on a recording medium. ..

【0002】[0002]

【従来の技術】閃光装置から発光された閃光と自然光
(以下、定常光と呼ぶ)との割合を記録し、ラボにおけ
るプリント時にこの情報に基づいてカラーバランス補正
を行なうカメラが知られている(例えば、特開平3−4
1428号公報参照)。また、撮影に関する情報をフィ
ルムに磁気的に記録するカメラが知られている(例え
ば、米国特許第5,006,873号公報参照)。
2. Description of the Related Art There is known a camera which records a ratio of flash light emitted from a flash device and natural light (hereinafter, referred to as "steady light"), and performs color balance correction based on this information when printing in a laboratory ( For example, Japanese Patent Laid-Open No. 3-4
1428). There is also known a camera that magnetically records information related to shooting on a film (see, for example, US Pat. No. 5,006,873).

【0003】[0003]

【発明が解決しようとする課題】しかしながら、従来の
カメラでは、主要被写体と背景との色温度のバランスま
では考慮されておらず、シ−ンによっては色温度のバラ
ンスが崩れて不自然な写真になるという問題がある。例
えば、背景が夕焼けやタングステン照明の場合、背景が
赤っぽく写るのに対し人物などの主要被写体は白っぽく
写り、主要被写体と背景とのカラーバランスが不自然な
写真となる。
However, in conventional cameras, even the color temperature balance between the main subject and the background is not taken into consideration, and depending on the scene, the color temperature balance may be lost, resulting in an unnatural photograph. There is a problem that becomes. For example, when the background is sunset or tungsten lighting, the background appears reddish, while the main subject such as a person appears whitish, resulting in an unnatural color balance between the main subject and the background.

【0004】本発明の目的は、主要被写体と背景との色
温度のバランスを最適化するとともに、その情報を記録
する閃光光源の色温度情報記録カメラを提供することに
ある。
An object of the present invention is to provide a color temperature information recording camera for a flash light source which optimizes the color temperature balance between the main subject and the background and records the information.

【0005】[0005]

【課題を解決するための手段】クレーム対応図である図
1に対応づけて本発明を説明すると、請求項1の発明
は、被写界を照明する閃光手段100と、被写界の自然
光の色温度を計測する色温度計測手段101と、自然光
の色温度に基づいて閃光手段100の光源の色温度を演
算する閃光色温度演算手段102と、閃光手段100の
光源の色温度を閃光色温度演算手段102で演算された
色温度に調節する閃光色温度調節手段103と、閃光色
温度演算手段102で演算された色温度情報を記録媒体
104に記録する記録手段105とを備え、これによ
り、上記目的を達成する。請求項2の閃光光源の色温度
情報記録カメラの記録手段105Aは、色温度情報を記
録媒体104Aに磁気的に記録する。請求項3の閃光光
源の色温度情報記録カメラの記録媒体104Bは銀塩フ
ィルムである。
The present invention will be described with reference to FIG. 1 which is a diagram corresponding to claims. In the invention of claim 1, the flash means 100 for illuminating the field and the natural light of the field are provided. A color temperature measuring means 101 for measuring the color temperature, a flash color temperature calculating means 102 for calculating the color temperature of the light source of the flash means 100 based on the color temperature of natural light, and a color temperature of the light source of the flash means 100 for the flash color temperature. The flash color temperature adjusting means 103 for adjusting the color temperature calculated by the calculating means 102 and the recording means 105 for recording the color temperature information calculated by the flash color temperature calculating means 102 on the recording medium 104 are provided. To achieve the above objectives. The recording means 105A of the color temperature information recording camera of the flash light source of claim 2 magnetically records the color temperature information on the recording medium 104A. The recording medium 104B of the color temperature information recording camera of the flash light source of claim 3 is a silver salt film.

【0006】[0006]

【作用】請求項1では、閃光色温度演算手段102によ
って色温度計測手段101で計測された自然光の色温度
に基づいて閃光手段100の光源の色温度が演算され、
閃光色温度調節手段103によって閃光手段100の光
源の色温度が閃光色温度演算手段102で演算された色
温度になるように調節されるとともに、記録手段105
によって、閃光色温度演算手段102で演算された色温
度情報が記録媒体104に記録される。
According to the present invention, the color temperature of the light source of the flash means 100 is calculated based on the color temperature of the natural light measured by the color temperature measuring means 101 by the flash color temperature calculating means 102.
The color temperature of the light source of the flash means 100 is adjusted by the flash color temperature adjusting means 103 to be the color temperature calculated by the flash color temperature calculating means 102, and the recording means 105 is also provided.
Thus, the color temperature information calculated by the flash color temperature calculation means 102 is recorded on the recording medium 104.

【0007】[0007]

【実施例】図2は、本発明に係わるTTL自動調光カメ
ラを示す図である。カメラボディー1には、着脱可能な
撮影レンズ鏡筒21と電子閃光装置31が装着される。
ファインダー観察時、撮影レンズ22を通過した光束
(定常光)は、破線で示すダウン状態のミラ−2で反射
され、スクリ−ン3,ペンタプリズム4を通過して、一
部は接眼レンズ5へ導かれ、他の一部は集光レンズ6を
通過して露出演算用測光素子7へ導かれる。また撮影時
には、不図示のシャッターレリーズボタンがレリーズさ
れると、ミラ−2が実線で示すアップ位置に駆動された
後、絞り23が絞り込まれ、シャッター8が開放され
る。これにより、撮影レンズ22を通過した被写体光
は、フィルム9へ導かれ、フィルム9が露光される。閃
光撮影時には、シャッター8が開放された後に、電子閃
光装置31のキセノン管32が本発光し、照射レンズ3
4を介して被写体を照明する。被写体からの反射光は撮
影レンズ22を介してフィルム面に至り、このフィルム
面で反射された光束が集光レンズ10を介して調光用受
光素子11で受光され、この測光結果に基づいて調光が
行なわれる。なお、33は反射傘である。
FIG. 2 is a diagram showing a TTL automatic light control camera according to the present invention. A detachable taking lens barrel 21 and an electronic flash device 31 are mounted on the camera body 1.
During observation with the finder, the light flux (steady light) that has passed through the taking lens 22 is reflected by the down-state Mira-2 shown by the broken line, passes through the screen 3 and the pentaprism 4, and partly goes to the eyepiece 5. The other part is guided through the condenser lens 6 to the exposure calculation photometric element 7. When a shutter release button (not shown) is released at the time of shooting, after the Mira-2 is driven to the up position shown by the solid line, the diaphragm 23 is narrowed down and the shutter 8 is opened. As a result, the subject light that has passed through the taking lens 22 is guided to the film 9 and the film 9 is exposed. At the time of flash photography, after the shutter 8 is opened, the xenon tube 32 of the electronic flash device 31 emits the main light, and the irradiation lens 3
Illuminate the subject through 4. The reflected light from the subject reaches the film surface through the taking lens 22, and the light flux reflected by this film surface is received by the light receiving element 11 for light adjustment through the condenser lens 10, and is adjusted based on the result of the light measurement. Light is performed. Incidentally, 33 is a reflector.

【0008】また色温度計測用素子35は、集光レンズ
36を介して被写界の色温度を計測する。記録装置12
は、フィルム9に塗付された磁気トラックに撮影に関す
る情報を磁気記録する。この実施例では、閃光の色温度
を外部記録媒体としてのフィルム9に磁気的に記録し、
ラボにおけるプリント時に必要があればその情報に基づ
いてカラーバランス補正を行なう。
The color temperature measuring element 35 measures the color temperature of the field through the condenser lens 36. Recording device 12
Information is magnetically recorded on a magnetic track applied to the film 9 for photographing. In this embodiment, the color temperature of the flash light is magnetically recorded on the film 9 as an external recording medium,
If necessary at the time of printing in the lab, color balance correction is performed based on that information.

【0009】図3は、一実施例の構成を示すブロック図
である。図において、41は定常光測光回路であり、露
出演算用測光素子7により受光された定常光を測光す
る。42は閃光測光回路であり、調光用受光素子11に
より受光された閃光の反射光を測光する。43は定常光
色温度計測回路であり、色温度計測用素子35で受光さ
れた定常光の色温度を計測する。44は、マイクロコン
ピュータおよびその周辺部品から構成される制御回路で
あり、カメラのシーケンス制御や種々の演算を行なうと
ともに、後述する制御プログラムを実行して電子閃光装
置31から発光される閃光の色温度を制御し、さらにそ
の情報をフィルム9に記録させる。45は閃光色温度変
更部であり、制御回路44からの色温度指令信号に基づ
いて電子閃光装置31の閃光の色温度を調節する。46
は記録回路であり、記録装置12を介して閃光の色温度
情報をフィルム9に磁気記録する。47は、フィルム9
上の磁気トラックに記録された閃光の色温度情報に基づ
いてプリント処理を行なうラボである。
FIG. 3 is a block diagram showing the configuration of an embodiment. In the figure, reference numeral 41 denotes a constant light photometry circuit, which measures the constant light received by the exposure calculation photometric element 7. Reference numeral 42 denotes a flash photometry circuit, which measures the reflected light of the flash light received by the dimming light receiving element 11. Reference numeral 43 denotes a stationary light color temperature measuring circuit, which measures the color temperature of the stationary light received by the color temperature measuring element 35. Reference numeral 44 denotes a control circuit composed of a microcomputer and its peripheral parts, which controls the sequence of the camera and performs various calculations, and executes a control program which will be described later to execute the color temperature of the flash light emitted from the electronic flash device 31. Is controlled, and the information is recorded on the film 9. A flash color temperature changing unit 45 adjusts the color temperature of flash light of the electronic flash device 31 based on a color temperature command signal from the control circuit 44. 46
Is a recording circuit for magnetically recording the color temperature information of the flash light on the film 9 via the recording device 12. 47 is film 9
This is a laboratory that performs print processing based on the color temperature information of the flashlight recorded on the upper magnetic track.

【0010】図4は、定常光の色温度に対する閃光光源
の色温度の関係を示す。従来の閃光装置の閃光光源の色
温度は、定常光の色温度に関係なく、例えば5500
[K]一定であった。この実施例では、 (1)定常光の色温度が5500[K]未満のときは、
閃光光源の色温度を定常光の色温度に近づける方向に変
更し、 (2)定常光の色温度が5500[K]以上のときは、
閃光光源の色温度を5500[K]一定とする。 前者によれば、背景が夕焼けやタングステン照明の場合
に、赤色光源に照明された人物などの主要被写体もやや
赤っぽくなり、不自然さがなくなる。また後者によれ
ば、一般に嫌われる、人物が青っぽくなるのが防止され
る。
FIG. 4 shows the relationship between the color temperature of the stationary light and the color temperature of the flash light source. The color temperature of the flash light source of the conventional flash device is, for example, 5500 regardless of the color temperature of the stationary light.
[K] It was constant. In this embodiment, (1) when the color temperature of the stationary light is less than 5500 [K],
Change the color temperature of the flash light source so that it approaches the color temperature of the ambient light, and (2) When the color temperature of the ambient light is 5500 [K] or higher,
The color temperature of the flash light source is fixed at 5500 [K]. According to the former, when the background is a sunset or tungsten illumination, the main subject such as a person illuminated by the red light source also becomes slightly reddish and the unnaturalness disappears. According to the latter, it is possible to prevent the person from becoming bluish, which is generally disliked.

【0011】図5は、閃光色温度変更部45の一例を示
す図である。キセノン管32は、電流を少しずつ流して
やると発光の立ち上がりが緩やかになり、色温度が低く
なる。逆に、電流を急激に流してやると発光の立ち上が
りが急になり、色温度が高くなる。図5に示す閃光色温
度変更部45はキセノン管32のこのような性質を利用
したもので、キセノン管32を発光させる公知の閃光回
路51とキセノン管32との間に可変のインダクター5
2を設け、制御回路44の出力に基づきインダクタンス
変更回路53がその値を制御する。
FIG. 5 is a diagram showing an example of the flash color temperature changing unit 45. In the xenon tube 32, when an electric current is gradually applied, the rise of light emission becomes gentle and the color temperature becomes low. On the contrary, when a current is suddenly applied, the rise of light emission becomes abrupt and the color temperature becomes high. The flash color temperature changing unit 45 shown in FIG. 5 utilizes such a property of the xenon tube 32, and a variable inductor 5 is provided between the known flash circuit 51 for causing the xenon tube 32 to emit light and the xenon tube 32.
2, the inductance changing circuit 53 controls the value based on the output of the control circuit 44.

【0012】図6は、制御回路44で実行される制御プ
ログラムを示すフローチャートである。このフローチャ
ートにより、実施例の動作を説明する。ステップS1
で、定常光色温度計測回路43によって定常光の色温度
TFDを計測する。続くステップS2で、閃光光源の色温
度TSBに5500[K]を設定する。ステップS3で、
定常光の色温度TFDが5500[K]未満であるか否か
を判別し、5500[K]未満であればステップS4へ
進み、そうでなければステップS4をスキップする。ス
テップS4で、閃光光源の色温度TSBを次式により算出
する。 TSB=0.7・TFD+1650 ・・・(1) ステップS5で、算出された閃光光源の色温度TSBを、
記録回路46を介してフィルム9に記録する。ステップ
S6で、インダクター52のインダクタンスLを次式に
より算出する。 L=−K1・TSB+K2 ・・・(2) ここで、K1,K2は定数であり、回路系の設計時に決定
される。ステップS7で、インダクタンス変更回路53
によってインダクタンスLを算出された値に変更する。
ステップS8で、電子閃光装置31を発光させ、調光を
行なう。
FIG. 6 is a flowchart showing a control program executed by the control circuit 44. The operation of the embodiment will be described with reference to this flowchart. Step S1
Then, the constant light color temperature measuring circuit 43 measures the color temperature TFD of the constant light. In the following step S2, 5500 [K] is set to the color temperature TSB of the flash light source. In step S3,
It is determined whether or not the color temperature TFD of the ambient light is less than 5500 [K]. If it is less than 5500 [K], the process proceeds to step S4, and if not, step S4 is skipped. In step S4, the color temperature TSB of the flash light source is calculated by the following equation. TSB = 0.7 · TFD + 1650 (1) The color temperature TSB of the flash light source calculated in step S5 is
Recording is performed on the film 9 via the recording circuit 46. In step S6, the inductance L of the inductor 52 is calculated by the following equation. L = -K1TSB + K2 (2) Here, K1 and K2 are constants and are determined when the circuit system is designed. In step S7, the inductance changing circuit 53
The inductance L is changed to the calculated value by.
In step S8, the electronic flash device 31 is caused to emit light to perform light control.

【0013】図7は、閃光色温度変更部45の他の実施
例を示す。この実施例では、キセノン管32の前方に色
温度変更用のフィルター62〜64を配置して、発光後
の閃光の色温度を変更する。色温度変更用のフィルター
62〜64は、ゲスト・ホスト型の液晶で、液晶駆動回
路61から電圧が印加されると、62は赤色に、63は
緑色に、64は青色にそれぞれ着色する。これら3種類
のフィルター62〜64を組合せ、キセノン管32から
発光された閃光の色温度を変更する。
FIG. 7 shows another embodiment of the flash color temperature changing section 45. In this embodiment, filters 62 to 64 for changing the color temperature are arranged in front of the xenon tube 32 to change the color temperature of the flash light after the light emission. The filters 62 to 64 for changing the color temperature are guest-host type liquid crystals, and when voltage is applied from the liquid crystal drive circuit 61, 62 is colored in red, 63 is colored in green, and 64 is colored in blue. By combining these three types of filters 62 to 64, the color temperature of the flash light emitted from the xenon tube 32 is changed.

【0014】図8は、後者の閃光色温度変更部45を用
いた場合の制御プログラムを示すフローチャートであ
る。このフローチャートにより、動作を説明する。ステ
ップS11で、定常光の色温度TFDを計測し、続くステ
ップS12で、閃光光源の色温度TSBに5500[K]
を設定する。ステップS13で、定常光の色温度TFDが
5500[K]未満であるか否かを判別し、5500
[K]未満であればステップS14へ進み、そうでなけ
ればステップS14をスキップする。ステップS14
で、閃光光源の色温度TSBを上記(1)式により算出す
る。ステップS15で、算出された閃光光源の色温度T
SBを記録回路46を介してフィルム9へ記録する。ステ
ップS16で、液晶駆動回路61が液晶62に印加する
電圧VRを次式により算出する。 VR=−C1・TSB+C2 ・・・(3) ここで、C1,C2は定数であり、回路系の設計時に決定
される。ステップS17で、液晶駆動回路61が液晶6
3に印加する電圧VGを次式により算出する。 VG=−C3・TSB+C4 ・・・(4) ここで、C3,C4は定数であり、回路系の設計時に決定
される。ステップS18で、液晶駆動回路61が液晶6
4に印加する電圧VBを次式により算出する。 VB=−C5・TSB+C6 ・・・(5) ここで、C5,C6は定数であり、回路系の設計時に決定
される。ステップS19で、VR,VG,VBを液晶駆動
回路61により設定し、続くステップS20で、発光
し、調光して終了する。
FIG. 8 is a flowchart showing a control program when the latter flash color temperature changing unit 45 is used. The operation will be described with reference to this flowchart. In step S11, the color temperature TFD of the stationary light is measured, and in the subsequent step S12, the color temperature TSB of the flash light source is set to 5500 [K].
To set. In step S13, it is determined whether the color temperature TFD of the ambient light is less than 5500 [K], and the color temperature TFD of 5500 is determined.
If it is less than [K], the process proceeds to step S14, and if not, step S14 is skipped. Step S14
Then, the color temperature TSB of the flash light source is calculated by the above equation (1). In step S15, the color temperature T of the flash light source calculated
SB is recorded on the film 9 via the recording circuit 46. In step S16, the voltage VR applied to the liquid crystal 62 by the liquid crystal drive circuit 61 is calculated by the following equation. VR = -C1.TSB + C2 (3) Here, C1 and C2 are constants, which are determined when the circuit system is designed. In step S17, the liquid crystal drive circuit 61 causes the liquid crystal 6
The voltage VG applied to 3 is calculated by the following equation. VG = -C3TSB + C4 (4) Here, C3 and C4 are constants and are determined when the circuit system is designed. In step S18, the liquid crystal drive circuit 61 causes the liquid crystal 6
The voltage VB applied to 4 is calculated by the following equation. VB = -C5.TSB + C6 (5) Here, C5 and C6 are constants, which are determined when the circuit system is designed. In step S19, VR, VG, and VB are set by the liquid crystal drive circuit 61, and in the following step S20, light emission is performed, light control is performed, and the process ends.

【0015】このように、色温度計測用素子35および
定常光色温度計測回路43によって被写界の自然光の色
温度を計測し、この色温度に基づいて電子閃光装置31
の光源の色温度を演算し、この演算結果に従って閃光色
温度変更部45で閃光光源の色温度を変更するととも
に、その演算結果をフィルム9上に塗付された磁気トラ
ックに磁気的に記録するようにしたので、主要被写体と
背景との色温度のバランスが最適な状態に調整され、背
景の色温度にかかわらず自然な写真が得られる。つま
り、閃光光源の色温度を自然光の色温度に近づける方向
に変更することによって、背景が夕焼けやタングステン
照明の場合に人物もやや赤っぽくなり、従来のような不
自然さがなくなる。さらに、その色温度情報がラボに伝
達され、ラボにおけるプリント時に、必要があれば閃光
光源の色温度に基づいてさらにカラーバランス補正を行
なうことができ、最適な色具合の写真をプリントするこ
とができる。
As described above, the color temperature measuring element 35 and the stationary light color temperature measuring circuit 43 measure the color temperature of the natural light of the object field, and the electronic flash unit 31 is based on this color temperature.
The color temperature of the light source is calculated, the color temperature of the flash light source is changed by the flash color temperature changing unit 45 according to the calculation result, and the calculation result is magnetically recorded on the magnetic track coated on the film 9. Since this is done, the color temperature balance between the main subject and the background is adjusted to an optimal state, and a natural photograph can be obtained regardless of the color temperature of the background. That is, by changing the color temperature of the flash light source so as to approach the color temperature of natural light, the person becomes slightly reddish when the background is sunset or tungsten lighting, and the unnaturalness as in the past is eliminated. Furthermore, the color temperature information is transmitted to the lab, and when printing in the lab, color balance correction can be further performed based on the color temperature of the flash light source if necessary, and a photograph of the optimum color condition can be printed. it can.

【0016】上記実施例では、外部記録媒体としてフィ
ルム上に塗付された磁気トラックを例に上げて説明した
が、フィルムカートリッジの表面に磁気記録媒体を塗付
して情報を記録してもよいし、ICカードなどの記憶装
置に記録してもよい。また、情報の記録方式は磁気的な
記録方式に限定されず、例えばフィルムに光学的に記録
してもよい。
In the above embodiment, the magnetic track coated on the film was described as an example of the external recording medium, but the magnetic recording medium may be coated on the surface of the film cartridge to record information. However, it may be recorded in a storage device such as an IC card. The information recording method is not limited to the magnetic recording method, and may be optically recorded on a film, for example.

【0017】以上の実施例の構成において、電子閃光装
置31が閃光手段を、色温度計測用素子35および定常
光色温度計測回路43が色温度計測手段を、制御回路4
4が閃光色温度演算手段を、閃光色温度変更部45,イ
ンダクター52,インダクタンス変更回路53,液晶駆
動回路61およびフィルター62〜64が閃光色温度調
節手段を、フィルム9が記録媒体を、記録装置12およ
び記録回路46が記録手段をそれぞれ構成する。
In the configuration of the above embodiment, the electronic flash unit 31 is a flash unit, the color temperature measuring element 35 and the stationary light color temperature measuring circuit 43 are a color temperature measuring unit, and the control circuit 4 is used.
4, flash color temperature calculation means, flash color temperature changing unit 45, inductor 52, inductance changing circuit 53, liquid crystal drive circuit 61 and filters 62 to 64 are flash color temperature adjusting means, and film 9 is a recording medium. 12 and the recording circuit 46 respectively constitute recording means.

【0018】[0018]

【発明の効果】以上説明したように本発明によれば、被
写界の自然光の色温度を計測し、この色温度に基づいて
閃光光源の色温度を演算し、この演算結果に従って閃光
光源の色温度を調節するとともに、その演算結果を記録
媒体に記録するようにしたので、主要被写体と背景との
色温度のバランスが最適な状態に調整され、背景の色温
度にかかわらず自然な写真が得られる。すなわち、閃光
光源の色温度を自然光の色温度に近づける方向に変更す
ることにより、背景が夕焼けやタングステン照明の場合
に人物もやや赤っぽくなり、従来のような不自然さがな
くなる。また、計測された自然光の色温度が5500
[K]以上のときは、閃光光源の色温度を5500
[K]一定としたので、一般に嫌われる人物が青っぽく
なる現象が避けられる。さらに、その色温度の情報がフ
ィルムなどの記録媒体に記録されてラボに伝達されるの
で、ラボにおけるプリント時に、必要があれば閃光光源
の色温度に基づいてさらにカラーバランス補正を行なう
ことができ、最適な色具合の写真をプリントすることが
できる。
As described above, according to the present invention, the color temperature of natural light in the field is measured, the color temperature of the flash light source is calculated based on this color temperature, and the color temperature of the flash light source is calculated according to the calculation result. Since the color temperature is adjusted and the calculation result is recorded on a recording medium, the color temperature balance between the main subject and the background is adjusted to the optimum state, and a natural picture is obtained regardless of the background color temperature. can get. That is, by changing the color temperature of the flash light source to a direction closer to the color temperature of natural light, the person becomes slightly reddish in the case of sunset or tungsten illumination, and the conventional unnaturalness is eliminated. Also, the measured color temperature of natural light is 5500.
When the temperature is higher than [K], the color temperature of the flash light source is set to 5500.
[K] Since it is fixed, it is possible to avoid the phenomenon that a person who is generally disliked becomes bluish. Furthermore, since the color temperature information is recorded on a recording medium such as a film and transmitted to the lab, it is possible to perform further color balance correction based on the color temperature of the flash light source when printing in the lab, if necessary. , It is possible to print a photo with the optimum color condition.

【図面の簡単な説明】[Brief description of drawings]

【図1】クレーム対応図。FIG. 1 is a diagram for responding to a complaint.

【図2】本発明に係わるカメラの断面図。FIG. 2 is a sectional view of a camera according to the present invention.

【図3】一実施例の構成を示すブロック図。FIG. 3 is a block diagram showing the configuration of an embodiment.

【図4】定常光の色温度に対する閃光光源の色温度の関
係を示す図。
FIG. 4 is a diagram showing the relationship between the color temperature of stationary light and the color temperature of a flash light source.

【図5】閃光色温度変更部の一例を示す図。FIG. 5 is a diagram showing an example of a flash color temperature changing unit.

【図6】閃光色温度制御およびその情報記録制御を行な
うプログラムを示すフローチャート。
FIG. 6 is a flowchart showing a program for performing flash color temperature control and information recording control thereof.

【図7】閃光色温度変更部の他の実施例を示す図。FIG. 7 is a diagram showing another embodiment of the flash color temperature changing unit.

【図8】図7に示す閃光色温度変更部の閃光色温度制御
およびその情報記録制御を行なうプログラムを示すフロ
ーチャート。
8 is a flowchart showing a program for performing flash color temperature control of the flash color temperature changing unit shown in FIG. 7 and information recording control thereof.

【符号の説明】[Explanation of symbols]

1 カメラ 9 フィルム 12 記録装置 21 撮影レンズ鏡筒 22 撮影レンズ 31 電子閃光装置 32 キセノン管 35 色温度計測用素子 36 集光レンズ 41 定常光測光回路 42 閃光測光回路 43 定常光色温度計測回路 44 制御回路 45 閃光色温度変更部 46 記録回路 47 ラボ 51 閃光回路 52 インダクター 53 インダクタンス変更回路 61 液晶駆動回路 62〜64 フィルター 100 閃光手段 101 色温度計測手段 102 閃光色温度演算手段 103 閃光色温度調節手段 104,104A,104B 記録媒体 105,105A 記録手段 DESCRIPTION OF SYMBOLS 1 camera 9 film 12 recording device 21 photographing lens barrel 22 photographing lens 31 electronic flash device 32 xenon tube 35 color temperature measuring element 36 condensing lens 41 steady light photometric circuit 42 flash photometric circuit 43 steady light color temperature measuring circuit 44 control Circuit 45 Flash color temperature changing unit 46 Recording circuit 47 Lab 51 Flash circuit 52 Inductor 53 Inductance changing circuit 61 Liquid crystal drive circuit 62 to 64 Filter 100 Flash means 101 Color temperature measuring means 102 Flash color temperature calculating means 103 Flash color temperature adjusting means 104 , 104A, 104B recording medium 105, 105A recording means

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】被写界を照明する閃光手段と、 前記被写界の自然光の色温度を計測する色温度計測手段
と、 前記自然光の色温度に基づいて前記閃光手段の光源の色
温度を演算する閃光色温度演算手段と、 前記閃光手段の光源の色温度を前記閃光色温度演算手段
で演算された前記色温度に調節する閃光色温度調節手段
と、 前記閃光色温度演算手段で演算された前記色温度情報を
記録媒体に記録する記録手段とを備えることを特徴とす
る閃光光源の色温度情報記録カメラ。
1. A flash means for illuminating an object scene, a color temperature measuring means for measuring a color temperature of natural light of the object scene, and a color temperature of a light source of the flash means based on the color temperature of the natural light. Flash color temperature calculating means for calculating, flash color temperature adjusting means for adjusting the color temperature of the light source of the flash means to the color temperature calculated by the flash color temperature calculating means, and calculation by the flash color temperature calculating means A recording means for recording the color temperature information on a recording medium, and a color temperature information recording camera for a flash light source.
【請求項2】請求項1に記載の閃光光源の色温度情報記
録カメラにおいて、 前記記録手段は、前記色温度情報を前記記録媒体に磁気
的に記録することを特徴とする閃光光源の色温度情報記
録カメラ。
2. The color temperature information recording camera for a flash light source according to claim 1, wherein the recording means magnetically records the color temperature information on the recording medium. Information recording camera.
【請求項3】請求項1または請求項2に記載の閃光光源
の色温度情報記録カメラにおいて、 前記記録媒体は、銀塩フィルムであることを特徴とする
閃光光源の色温度情報記録カメラ。
3. The color temperature information recording camera for a flash light source according to claim 1 or 2, wherein the recording medium is a silver salt film.
JP3302006A 1991-11-18 1991-11-18 Color temperature information recording camera Pending JPH05158133A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP3302006A JPH05158133A (en) 1991-11-18 1991-11-18 Color temperature information recording camera
US08/320,976 US5452049A (en) 1991-11-18 1994-10-11 Camera with adjustment and recording of color temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3302006A JPH05158133A (en) 1991-11-18 1991-11-18 Color temperature information recording camera

Publications (1)

Publication Number Publication Date
JPH05158133A true JPH05158133A (en) 1993-06-25

Family

ID=17903753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3302006A Pending JPH05158133A (en) 1991-11-18 1991-11-18 Color temperature information recording camera

Country Status (1)

Country Link
JP (1) JPH05158133A (en)

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Publication number Priority date Publication date Assignee Title
JP2007017623A (en) * 2005-07-06 2007-01-25 Fujifilm Holdings Corp Photographing device, light emission controller and light-emitting device
CN1324398C (en) * 2000-07-25 2007-07-04 富士胶片株式会社 Flashlight unit of camera, electronic camera and lighting head
WO2014129141A1 (en) * 2013-02-20 2014-08-28 Sony Corporation Image processing device, photographing control method, and program

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1324398C (en) * 2000-07-25 2007-07-04 富士胶片株式会社 Flashlight unit of camera, electronic camera and lighting head
JP2007017623A (en) * 2005-07-06 2007-01-25 Fujifilm Holdings Corp Photographing device, light emission controller and light-emitting device
WO2014129141A1 (en) * 2013-02-20 2014-08-28 Sony Corporation Image processing device, photographing control method, and program
CN104995905A (en) * 2013-02-20 2015-10-21 索尼公司 Image processing device, photographing control method, and program
US9667863B2 (en) 2013-02-20 2017-05-30 Sony Corporation Image processing system, image processing method, and program
US10171728B2 (en) 2013-02-20 2019-01-01 Sony Corporation Image processing device, photographing control method, and program
US10638035B2 (en) 2013-02-20 2020-04-28 Sony Corporation Image processing devices, image processing method, and non-transitory computer-readable medium

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