JPS63155132A - Lighting method - Google Patents

Lighting method

Info

Publication number
JPS63155132A
JPS63155132A JP30296486A JP30296486A JPS63155132A JP S63155132 A JPS63155132 A JP S63155132A JP 30296486 A JP30296486 A JP 30296486A JP 30296486 A JP30296486 A JP 30296486A JP S63155132 A JPS63155132 A JP S63155132A
Authority
JP
Japan
Prior art keywords
output
light
ratio
discharge tube
adjusted
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.)
Granted
Application number
JP30296486A
Other languages
Japanese (ja)
Other versions
JPH0664283B2 (en
Inventor
Hiroaki Ando
安藤 裕明
Toshihiro Waki
利博 脇
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.)
KOMETSUTO KK
Original Assignee
KOMETSUTO KK
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 KOMETSUTO KK filed Critical KOMETSUTO KK
Priority to JP61302964A priority Critical patent/JPH0664283B2/en
Publication of JPS63155132A publication Critical patent/JPS63155132A/en
Publication of JPH0664283B2 publication Critical patent/JPH0664283B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To light a subject brightly when the quantity of light is adjusted by adjusting the output of the incandescent lamp of a lighting fixture whose discharge tube output is adjusted to the maximum output among lighting fixtures to a preset output which is as large as possible while holding the output ratio among respective discharge tubes equal to the output ratio of respective incandescent lamps. CONSTITUTION:A ratio dimming circuit 5 has a reception part which receives a light quantity ratio signal from a momentary light quantity ratio decision circuit 4, a decision part which selects a maximum light quantity ratio signal, and an output part which adjusts the outputs of incandescent lamps of respective lighting fixtures so that they are proportional to the outputs of the discharge tubes, and is equipped with a setting part which maximizes the output of a reference incandescent lamp. Then the outputs of the incandescent lamps 3 in the respective lighting fixtures 1 are connected to a dimming circuit 6, which is controlled. This control is carried out by increasing the output of the incandescent lamp 3 of the lighting fixture whose discharge tube output is adjusted to the maximum output to the preset output which is as large as possible while the output ratio among the respective discharge tubes 2 is held equal to the output ratio among the respective incandescent lamps 3. Consequently, the respective incandescent lamps are made to illuminate brightly.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は写真撮影の際に、照明を行う照明、方法に関す
る。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to illumination and a method for illuminating during photography.

〈従来の技術〉 写真スタジオや多量な光が必要な撮影においては、大型
のエレクトロニックフラッシュ装置を用いて被写体の照
明が行われている。第3図はかかる従来の照明方法のた
めに使用されているエレクトロニックフラッシュ装置の
構成を示している。
<Prior Art> In photo studios and in photography that requires a large amount of light, a large electronic flash device is used to illuminate a subject. FIG. 3 shows the configuration of an electronic flash device used for such conventional lighting methods.

このエレクトロニックフラッシュ装置は電源部31と灯
具32とからなり、上記灯具32には撮影時に瞬間光の
発光を行うキセノノ放電管等の放電管33と、配光状態
を肉眼によって観察するため定常光の発光を行う白熱電
球34とが配設されている。又、上記電源部31は瞬間
光発光用のエネルギーを蓄えるコンデンサ35と、その
エネルギーに応じて定常光を変化させるトライアック3
6、及び瞬間光と定常光の照度が比例ずろように調整す
る制御回路37とからなっている。
This electronic flash device consists of a power supply unit 31 and a lamp 32. The lamp 32 includes a discharge tube 33 such as a xenon discharge tube that emits instantaneous light during shooting, and a constant light source for observing the light distribution state with the naked eye. An incandescent light bulb 34 that emits light is provided. Further, the power supply unit 31 includes a capacitor 35 that stores energy for instantaneous light emission, and a triac 3 that changes the constant light according to the energy.
6, and a control circuit 37 that adjusts the illuminance of the instantaneous light and the constant light so that they are proportionally different.

写真撮影の際には、この灯具を1個又は複数個使用して
被写体を照明するが、撮影前においては定常光によって
灯具の適正配置および光量調整を行う。この光景調整に
おいては、放電管33からの瞬間光では肉眼で配光状態
を見極めろことができないところから、瞬時光に比例し
た出力の白熱を球34を使用し、元締の当り具合や、陰
影、立体感、質感等の状況を観察してフィルム上に再現
されるであろう状態を予想する。
When photographing, one or more of these lamps are used to illuminate the subject, but before photographing, the lamps are properly placed and the light intensity is adjusted using constant light. In this scene adjustment, since it is impossible to judge the light distribution state with the naked eye with the instantaneous light from the discharge tube 33, a bulb 34 is used to emit incandescent light with an output proportional to the instantaneous light. Observe the three-dimensional effect, texture, etc. and predict the state that will be reproduced on film.

この際、カメラの絞り値を適正に設定するために瞬間光
の照度を全体的に低くしなければならない場合が多い。
At this time, in order to appropriately set the aperture value of the camera, it is often necessary to lower the overall illuminance of the instantaneous light.

この場合、各灯具の定常光同士の照度の比率と各灯具の
瞬間光同士の照度と同じ比率を保ちながら各定常光の照
度を低下させる調光方法が通常使用されている。
In this case, a dimming method is usually used in which the illuminance of each stationary light is reduced while maintaining the same ratio of the illuminance between the stationary lights of each lamp and the illuminance of the instantaneous lights of each lamp.

次に、光N調整の一例を第4図により説明する。Next, an example of light N adjustment will be explained with reference to FIG.

同図中、41は被写体42をm影するカメラ、43はバ
ックスクリーンである。灯!、44,45゜46およ4
7が被写体42の周囲に4基配設されている。いずれの
灯具44,45,46および47の放電管も最大出力、
すなわち最大蓄積電力量が120(1,sであり、この
32分の1までの範囲内で出力調整可能となっている。
In the figure, 41 is a camera that casts an image of the subject 42, and 43 is a back screen. light! , 44, 45° 46 and 4
Four units 7 are arranged around the subject 42. The discharge tubes of all lamps 44, 45, 46 and 47 have maximum output,
That is, the maximum accumulated power amount is 120 (1, s), and the output can be adjusted within a range up to 1/32 of this.

一方、各灯具44.45,46および47内の白熱電球
は、例えばハロゲンランプが使用され、放電管の最大出
力120(usに対して最大200Wが出力可能なもの
が使用されている。フラッシュメータ (図示せず)を
使用して被写体42に対し、フィルム感度がI So 
100.カメラ41のレンズの絞りがF8となろ5上う
にエレクトロニックフラッシュの出力を調整すると、各
灯具の各放電管の出力およびこれに連動する各白熱電球
の出力は下記第1表のようになる。
On the other hand, the incandescent bulbs in each of the lamps 44, 45, 46, and 47 are, for example, halogen lamps, and discharge tubes capable of outputting a maximum output of 200 W at a maximum output of 120 (US) are used. (not shown) is used to set the film sensitivity to the subject 42.
100. When the aperture of the lens of the camera 41 is F8 and the output of the electronic flash is adjusted, the output of each discharge tube of each lamp and the output of each incandescent bulb linked thereto will be as shown in Table 1 below.

(以下余白) 〈発明が解決しようとする問題点〉 しかしながら、上記のような方法では瞬間光の照度がコ
ンデンサの充電エネルギーを瞬時に放出して高輝度で発
光するのに対し定常光は遅続的な発光であることや灯具
の構造上の制約等の理由により、各灯具の瞬間光の照度
のレベルと定常光の照度のレベルにはかなりの差違があ
る。また、照度を低下させろと、肉眼で見える範囲を悪
文て暗くなり、肉眼でTa認できないという問題点があ
った。
(Left below) <Problems to be solved by the invention> However, in the method described above, the illuminance of instantaneous light instantly releases the charging energy of the capacitor and emits light with high brightness, whereas the illuminance of constant light is delayed. There is a considerable difference between the level of illuminance of instantaneous light and the level of illuminance of steady light of each lamp due to reasons such as the fact that the lamp emits light in a typical manner and structural limitations of the lamp. Another problem was that when the illumination intensity was lowered, the range visible to the naked eye became dark, making it impossible to recognize Ta with the naked eye.

本発明は上記事情を考慮してなされ、光量調整の際に被
写体を明るく照明することができる照明方法を提供する
ことを目的としている。
The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide an illumination method that can brightly illuminate a subject when adjusting the amount of light.

く問題点を解決するための手段〉 上記目的を達成するため本発明は、瞬間光の照度と無関
係に定常光の照度を設定された比率のままで高くした等
比調光方法を提供するものである。
Means for Solving Problems> To achieve the above object, the present invention provides a geometric dimming method that increases the illuminance of constant light at a set ratio regardless of the illuminance of instantaneous light. It is.

すなわち本発明に係る照明方法は、各放電管同士の出力
比を各白熱電球同士の出力比と同率に保ちながら、上記
灯具のうち放電管出力が最大に調整された灯具の白熱電
球の出力を、予め設定されたできるだけ大きな出力とな
るように調整することを特撮としている。
That is, the lighting method according to the present invention maintains the output ratio of each discharge tube at the same rate as the output ratio of each incandescent bulb, and adjusts the output of the incandescent bulb of the lamp whose discharge tube output has been adjusted to the maximum among the above-mentioned lamps. , special effects are adjusted to achieve a preset maximum output.

〈作 用〉 各灯具の白熱電球の明るさは放電管出力が最大に調整さ
れた灯具の白熱電球の出力が予め設定されたできるだけ
大きな出力まで調整されるのに比例して全体的に明るく
調整されるから、被写体を陰影の状態を肉眼で確認し易
くなる。
<Function> The brightness of the incandescent bulb of each lamp is adjusted to brighten the overall brightness in proportion to the output of the incandescent bulb of the lamp whose discharge tube output is adjusted to the maximum output is adjusted to the preset maximum output. This makes it easier to check the shadow condition of the subject with the naked eye.

〈実施例〉 以下、本発明を図示する実施例を参照して具体的に説明
する。
<Examples> The present invention will be specifically described below with reference to illustrative examples.

第1図は本発明の一実施例の構成を示すブロック図であ
る。この実施例ば灯具1が4基設けられた場合を示して
おり、各灯具1内には撮影時に瞬間光の発光を行う放電
管2と、撮影前に光景調整を行うために定常光を発光す
る白熱電球3とが併設されている。ここで放電管2とし
ては、例えばキセノノ放電管が使用され、白熱電球3と
しては、例えばハロゲンランプが使用される。各灯具1
の放電管2は瞬間光発光の際の瞬間先光量比判別回路4
に接続されており、瞬間先光量比判別回路4に等比例光
回路5が接続されている。瞬間先光量比判別回路4は、
例丸ば第3図に示すような充電回路(図示せず)、コン
デンサ35.制御回路37が使用され、さらに各放電管
33の光量を比較する比例器(図示せず)が使用されて
構成される。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. This example shows a case where four lamps 1 are installed, and each lamp 1 includes a discharge tube 2 that emits instantaneous light during shooting, and a discharge tube 2 that emits constant light to adjust the scene before shooting. There are also 3 incandescent light bulbs. Here, as the discharge tube 2, for example, a xenon discharge tube is used, and as the incandescent light bulb 3, for example, a halogen lamp is used. Each light fixture 1
The discharge tube 2 is an instantaneous destination light amount ratio discrimination circuit 4 during instantaneous light emission.
, and an equal proportional optical circuit 5 is connected to the instantaneous destination light amount ratio discrimination circuit 4 . The instantaneous destination light amount ratio discrimination circuit 4 is
For example, a charging circuit (not shown) as shown in FIG. 3, a capacitor 35. A control circuit 37 is used, and a proportional device (not shown) for comparing the light amount of each discharge tube 33 is used.

前記等比調光回路5は各灯具1内の白熱電球3の出力を
yJv!1する調光回路6に接続されて、この調光回路
6を制御ずろものである。この等比調光回ll55とし
ては、マイクロコンピュータ等のソフト手段が使用され
て、上記調光回路6の制御が行オ)れる。かかる制御は
、各放電管2同士の出力比を各白熱電球3同士の出力比
と同率に保ったまま、放電管出力が最大に調整された灯
具の白熱電球3の出力を予め設定されたできるだけ大き
な出力となるように調整することで行われる。このため
等比例光回路5は前記瞬間先光量比判別回路4からの光
景比信号を受ける受信部と、最大Ω光量比信号、すなわ
ち最大蓄積電力量、を選択する判定部と、各灯具の白熱
電球の出力を放電管の出力に比例するように調整する出
力部とを少なくとも有し、さらに、基準となる白熱電球
の出力を最大にすることができる設定部を具備している
The geometrical dimming circuit 5 adjusts the output of the incandescent light bulb 3 in each lamp 1 to yJv! The light control circuit 6 is connected to the light control circuit 6 to control the light control circuit 6. As this geometrical dimming circuit 1155, software means such as a microcomputer is used to control the dimming circuit 6. Such control maintains the output ratio of each discharge tube 2 at the same rate as the output ratio of each incandescent bulb 3, and adjusts the output of the incandescent bulb 3 of the lamp whose discharge tube output is adjusted to the maximum to a preset maximum value. This is done by adjusting it to produce a large output. For this reason, the equal proportional light circuit 5 includes a receiving section that receives the scene ratio signal from the instantaneous destination light amount ratio discriminating circuit 4, a determining section that selects the maximum Ω light amount ratio signal, that is, the maximum accumulated power amount, and the incandescence of each lamp. It has at least an output section that adjusts the output of the light bulb so that it is proportional to the output of the discharge tube, and further includes a setting section that can maximize the output of the incandescent light bulb that serves as a reference.

第1図中、7は各灯具1の放電管2と白熱電球3とを連
動させる連動回路、8は放電管出力と白熱電球出力とを
比例させる方式と等比例光方式とを切り換えるスイッチ
である。
In Fig. 1, 7 is an interlocking circuit for interlocking the discharge tube 2 and incandescent bulb 3 of each lamp 1, and 8 is a switch for switching between a method in which the discharge tube output and incandescent bulb output are proportional and an equal proportion light method. .

次に、以上の構成によって光量調整を行う一例を第2図
により説明する。同図において、21ばカメラ、22は
被写体、23はバックスリーン。
Next, an example of adjusting the amount of light using the above configuration will be described with reference to FIG. 2. In the figure, 21 is a camera, 22 is a subject, and 23 is a back screen.

24.25,26,27は灯具であり、これらが第4図
と同配置に配され、又、各灯具24,25゜26.27
(7)各族m管の最大出力はx200W、s。
Reference numerals 24, 25, 26, and 27 are lamps, and these are arranged in the same arrangement as in Fig. 4, and each lamp 24, 25° 26, 27
(7) The maximum output of each group m tube is x200W, s.

併設される各白熱電球の最大出力は200wである。こ
のような状態で被写体の陰影を見ながら光景調整を行い
、各放電管の出力を各々150W、S。
The maximum output of each incandescent light bulb installed is 200W. In this state, I adjusted the scene while looking at the shadow of the subject, and adjusted the output of each discharge tube to 150W, S.

75品S、  37.5W、S、  37.5W、Sに
設定する。
Set to 75 items S, 37.5W, S, 37.5W, S.

次に、この時の各放電管中で最大の出力に調整されたも
のは灯具24の白熱電球の出力を予め設定されたできる
t!け大きな出力、すなわちこの白熱電球の最大出力2
00Wに調整する。又、同時に他の白熱電球の出力を各
白熱Ti球同士の出力比が各放電同士の出力比と同率に
保つように調整すると、各白熱電球の出力は下記第2表
のようになる。
Next, among the discharge tubes at this time, the one whose output is adjusted to the maximum output can set the output of the incandescent bulb of the lamp 24 to the preset value t! This is a large output, i.e. the maximum output of this incandescent bulb 2
Adjust to 00W. At the same time, if the output of the other incandescent bulbs is adjusted so that the output ratio between the incandescent Ti bulbs is maintained at the same rate as the output ratio between the respective discharges, the output of each incandescent bulb will be as shown in Table 2 below.

(以下余白) これを第1表と比較してみろと、各白熱電球の出力は全
体的に向上し−Cいろから、被写体は明るくなり、肉眼
で被写体の状態を確認できろ。
(Left below) Comparing this with Table 1, we can see that the output of each incandescent bulb has improved overall, and since it is colored -C, the subject becomes brighter and the condition of the subject can be confirmed with the naked eye.

なお、本実施例においては光量調整時の基準となる出力
を放電管出力が最大に調整されtコ灯只の白熱電球の最
大出力としたが最大出力以下であってもよく、他の灯具
の白熱電球の明るさを手動によって比例させてもよい。
In this example, the reference output when adjusting the light amount was set to the maximum output of an incandescent light bulb whose discharge tube output was adjusted to the maximum, but it may be less than the maximum output, and it may be used for other lamps. The brightness of the incandescent bulb may be proportionalized manually.

又、灯具の数、出力値等も適宜変更することができろ。Also, the number of lamps, output values, etc. can be changed as appropriate.

〈発明の効果〉 以上のとおり本発明によると、各放電管同士の出力比を
各白熱電球同士の出力比と同率に保ったまま、基準とな
る白熱電球の出力を予め設定されたできるだけ大きな出
力となるように調整するから、各白熱電球を明るく点灯
させる乙とができ、肉眼での被写体の確認が極め゛C容
易となる。
<Effects of the Invention> As described above, according to the present invention, the output of the reference incandescent bulb is adjusted to a preset maximum output while keeping the output ratio of each discharge tube at the same rate as the output ratio of each incandescent bulb. Since the adjustment is made so that each incandescent bulb is lit brightly, it becomes extremely easy to confirm the subject with the naked eye.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例の構成を示すブロック図、第
2図は同実施例を使用した撮影の配置図、第3図は従来
例の構成を示すブロック図、第4図はその撮影の配置図
である。 1.24,25,26,27・灯具、 2−放電管、3・白熱電球、5・等比調光回路特許出願
人  コメット株式会社 代理人 弁理士  佐 藤 芙 昭 :42 )¥1 S’24 茅3 )ffi 上
Fig. 1 is a block diagram showing the configuration of an embodiment of the present invention, Fig. 2 is a layout diagram for imaging using the same embodiment, Fig. 3 is a block diagram showing the configuration of a conventional example, and Fig. 4 is the same. It is a layout diagram for photographing. 1.24, 25, 26, 27・Lighting equipment, 2-Discharge tube, 3.Incandescent light bulb, 5.Geometric dimming circuit Patent applicant Comet Co., Ltd. Representative Patent attorney Akira Sato: 42) ¥1 S' 24 Kaya 3) ffi top

Claims (1)

【特許請求の範囲】 瞬間光を発光する放電管と定常光を発光する白熱電球と
が併設された1乃至複数の灯具を使用し、各灯具の放電
管の出力を調整して被写体を照明する照明方法において
、 各放電管同士の出力比を各白熱電球同士の出力比と同率
に保ちながら、上記灯具のうち放電管出力が最大に調整
された灯具の白熱電球の出力を予め設定されたできるだ
け大きな出力となるように調整することを特徴とする照
明方法。
[Claims] One or more lamps equipped with a discharge tube that emits instantaneous light and an incandescent bulb that emits constant light are used, and the output of the discharge tube of each lamp is adjusted to illuminate the subject. In the lighting method, while keeping the output ratio of each discharge tube at the same rate as the output ratio of each incandescent bulb, the output of the incandescent bulb of the lamp whose discharge tube output has been adjusted to the maximum among the above-mentioned lamps is adjusted to the preset maximum level. A lighting method characterized by adjusting to have a large output.
JP61302964A 1986-12-19 1986-12-19 Modeling dimming method for electronic flash Expired - Lifetime JPH0664283B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61302964A JPH0664283B2 (en) 1986-12-19 1986-12-19 Modeling dimming method for electronic flash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61302964A JPH0664283B2 (en) 1986-12-19 1986-12-19 Modeling dimming method for electronic flash

Publications (2)

Publication Number Publication Date
JPS63155132A true JPS63155132A (en) 1988-06-28
JPH0664283B2 JPH0664283B2 (en) 1994-08-22

Family

ID=17915273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61302964A Expired - Lifetime JPH0664283B2 (en) 1986-12-19 1986-12-19 Modeling dimming method for electronic flash

Country Status (1)

Country Link
JP (1) JPH0664283B2 (en)

Also Published As

Publication number Publication date
JPH0664283B2 (en) 1994-08-22

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