JPH0812793B2 - Variable color lighting system - Google Patents
Variable color lighting systemInfo
- Publication number
- JPH0812793B2 JPH0812793B2 JP63313388A JP31338888A JPH0812793B2 JP H0812793 B2 JPH0812793 B2 JP H0812793B2 JP 63313388 A JP63313388 A JP 63313388A JP 31338888 A JP31338888 A JP 31338888A JP H0812793 B2 JPH0812793 B2 JP H0812793B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- color
- illuminance
- signal
- signal output
- 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.)
- Expired - Fee Related
Links
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、住宅、店舗などの屋内施設における照明演
出に使用する光色可変形照明装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable light color type lighting device used for lighting effects in an indoor facility such as a house or a store.
従来の技術 近年、大画面のカラーテレビやビデオなどの普及にと
もない、テレビ画像を見る場合、居室内を色光によって
照明演出するAV環境への要求が高まっている。従来か
ら、住宅、店舗などの屋内照明施設において、色光によ
る照明演出を行なう場合、光の三原色である赤色光、緑
色光、青色光の光色をそれぞれ有する三種類の光源（カ
ラーランプ、または白色系の光源にカラーフイルタを装
着したもの）を用いて、それらを種々の照度比で混光す
ることによって各種の色光を実現する方法が用いられて
きた。この場合、照明装置で実現できる光色の色度範囲
は、色度図上で、光源に用いる三色光の色度点を結ぶ三
角形で囲まれる領域内の任意の色度を有する色光が実現
可能となる。したがって、この色度範囲のなかで実現し
たい色光の種類だけ、あらかじめマニュアル調光で三光
色の混光比を設定して調光記憶装置に記憶させ、随時再
生して種々の色光を実現する第４図に示すような光色可
変形照明装置が従来から使用されている。第４図におい
て、６は赤色光調光部、７は緑色光調光部、８は青色光
調光部、９は調光記憶部、10は再生色光出力部である。
この照明装置での光色の設定は、作業者が再生色光出力
部10から出力される照明光の光色を観察しながら、マニ
ュアルで赤色光調光部７、緑色光調光部８、青色光調光
部９の三つの出力をそれぞれ調整し、カットアンドトラ
イで希望の照明光を設定する方法であった。2. Description of the Related Art In recent years, with the widespread use of large-screen color televisions and videos, there is an increasing demand for an AV environment in which a living room is illuminated with colored light when watching television images. BACKGROUND ART Conventionally, in an indoor lighting facility such as a house or a store, when performing lighting production by colored light, three types of light sources (color lamps or white light) each having three primary colors of light, red light, green light, and blue light are provided. A method of realizing various colored lights by mixing them at various illuminance ratios has been used. In this case, the chromaticity range of the light color that can be realized by the lighting device can be any color light having any chromaticity within the area surrounded by the triangle connecting the chromaticity points of the three-color light used for the light source on the chromaticity diagram. Becomes Therefore, only the type of colored light that is desired to be realized within this chromaticity range is set in advance by manual dimming and the mixing ratio of the three light colors is stored in the dimming storage device, and reproduced at any time to realize various colored lights. A variable light color illumination device as shown in FIG. 4 has been conventionally used. In FIG. 4, 6 is a red light dimming unit, 7 is a green light dimming unit, 8 is a blue light dimming unit, 9 is a dimming storage unit, and 10 is a reproduction color light output unit.
To set the light color in this lighting device, the operator manually observes the light color of the illumination light output from the reproduction color light output unit 10, and manually sets the red light dimming unit 7, the green light dimming unit 8, and the blue light dimming unit. This is a method of adjusting the three outputs of the light control section 9 and setting the desired illumination light by cut and try.
発明が解決しようとする課題 しかし、AV鑑賞時の臨場感を出す目的で、テレビ画像
の色や明るさと連動させて居室の照明の光色や照度を変
化させようとした場合、このような従来の光色可変形照
明装置では、あらかじめテレビ画像の色や明るさの時間
的変化を測定し、それに対応した三光色の混光照度比を
すべて記憶させ、テレビ画像の時間的変化にあわせて再
生する必要がある。このためには、混光比の設定や再生
プログラムの設定などに長時間を要する、調光記憶装置
の記憶容量により実現可能な光色の範囲が限定されるな
どの問題があった。Problems to be Solved by the Invention However, when it is attempted to change the light color and illuminance of the lighting in the living room in conjunction with the color and brightness of the TV image for the purpose of providing a realistic sensation during AV viewing, such a conventional In the variable light color lighting device of, the color and brightness of the TV image are measured in advance with time, all the three-color mixed light illuminance ratios corresponding to them are stored, and reproduced in accordance with the time change of the TV image. There is a need. For this reason, there are problems that it takes a long time to set the light mixing ratio and the reproduction program, and the range of light colors that can be realized is limited by the storage capacity of the dimming storage device.
課題を解決するための手段 本発明は、上記の問題点を解決するために、カラーテ
レビから表示画像のＲ（赤色）、Ｇ（緑色）、Ｂ（青
色）の色信号を取り出すRGB信号出力部と、カラーテレ
ビから輝度信号を取り出すＹ信号出力部と、RGB信号出
力部から出力される色信号とＹ信号出力部から出力され
る輝度信号とを入力し光源に使用した光の三原色に対応
する三色光（赤色光、緑色光、青色光）の適正混光照度
比を算出する混光比演算部とを設け、テレビ画像と連動
して居室内の照明の光色と照度レベルを調光制御する。Means for Solving the Problems In order to solve the above problems, the present invention provides an RGB signal output unit for extracting R (red), G (green), and B (blue) color signals of a display image from a color television. Corresponding to the three primary colors of light used as a light source by inputting a Y signal output unit that extracts a luminance signal from a color television, a color signal output from an RGB signal output unit, and a luminance signal output from a Y signal output unit. A light mixing ratio calculation unit that calculates an appropriate light mixing illuminance ratio of three-color light (red light, green light, blue light) is provided, and dimming control of the light color and illuminance level of the illumination in the living room is performed in conjunction with the TV image. .
作用 本発明は上記の手段によって、テレビ画像の色と明る
さに対応した色光の色度と照度を容易に設定することが
でき、算出された混光比にしたがって三種類の光源が自
動的に混光されることによってテレビ画像と連動して居
室内の照明光を変化させることができる。Effect The present invention makes it possible to easily set the chromaticity and illuminance of colored light corresponding to the color and brightness of a television image by the above means, and the three types of light sources are automatically set according to the calculated light mixing ratio. By mixing the lights, the illumination light in the living room can be changed in conjunction with the television image.
実施例 第１図は本発明による光色可変形照明装置の実施例を
示すブロック構成図である。第１図において１はRGB信
号出力部、２はＹ信号出力部、３は混光比演算部、４は
調光制御部、５は色光出力部である。Embodiment FIG. 1 is a block diagram showing an embodiment of a variable light color illumination device according to the present invention. In FIG. 1, 1 is an RGB signal output unit, 2 is a Y signal output unit, 3 is a light mixing ratio calculation unit, 4 is a dimming control unit, and 5 is a color light output unit.
以下、第１図にしたがって、本発明による実施例を説
明する。An embodiment according to the present invention will be described below with reference to FIG.
RGB信号出力部１は、カラーテレビから表示画像のRGB
色信号を取り出して、毎秒30枚送られてくるテレビ画面
の１画面ごとに信号を積分し、１画面におけるRGB信号
比率を求め色信号として出力する。The RGB signal output unit 1 is used to display the RGB of the display image from the color TV
The color signal is taken out, the signal is integrated for each one of the 30 TV screens sent per second, the RGB signal ratio in one screen is obtained, and the signal is output as a color signal.
Ｙ信号出力部２は、カラーテレビ画像のＹ信号を取り
出して１画面ごとに平均し、１画面における画面の平均
輝度を求め、そのテレビで実現可能な最大輝度に対する
相対値（％）を輝度信号として出力する。The Y signal output unit 2 takes out the Y signal of the color television image and averages it for each screen to obtain the average luminance of the screen in one screen, and the relative value (%) with respect to the maximum luminance that can be realized by the television is the luminance signal. Output as.
混光比演算部３は、RGB信号出力部１からの色信号と
Ｙ信号出力部２からの輝度信号とから、照明装置の光源
に使用した光の三原色に対応する三色光（赤色光、緑色
光、青色光）の適正混光照度比を次の手順で算出する。The light mixing ratio calculation unit 3 uses the color signals from the RGB signal output unit 1 and the luminance signal from the Y signal output unit 2 to generate three color lights (red light, green light) corresponding to the three primary colors of the light used for the light source of the lighting device. The appropriate illuminance ratio of light and blue light is calculated by the following procedure.
（１）RGB信号出力部１から出力されるRGB信号比率Yr:Y
g:Ybから以下の関係式によりテレビ画面の色度を演算す
る。(1) RGB signal ratio output from RGB signal output unit 1 Yr: Y
The chromaticity of the TV screen is calculated from g: Yb by the following relational expression.
テレビ画像の色度座標（x,y）、 テレビ受像機の赤色発光の色度座標（xr,yr）、 テレピ受像機の緑色発光の色度座標（xg,yg）、 テレビ受像機の青色発光の色度座標（xb,yb）、 とする x=(Yｒxｒ/yｒ+Yｇxｇ/yｇ+Yｂxｂ/yｂ)/(Yｒ/yｒ+Yｇ/
yｇ+Yｂ/yｂ) ｙ＝（Yr＋Yg＋Yb）／（Yr/yr＋Yg/yg＋Yb/yb） （２）Ｙ信号出力部２からの輝度信号に対応して出力す
る照明の照度レベル（Ｅ）を算出する。TV image chromaticity coordinates (x, y), TV receiver red emission chromaticity coordinates (x r , y r ), Television receiver green emission chromaticity coordinates (x g , y g ), TV image reception blue emission chromaticity coordinates of the machine (x b, y b), and is x = (Y r x r / y r + Y g x g / y g + Y b x b / y b) / (Y r / y r + Y g /
the y g + Y b / y b ) y = (Y r + Y g + Y b) / (Y r / y r + Y g / y g + Y b / y b) (2) the luminance signal from the Y signal output section 2 Correspondingly, the illuminance level (E) of the output light is calculated.
ここで、テレビ画面の輝度が０〜100％まで変化する
とき、居室の照明光を０〜1000lxの範囲で変化させるも
のとすると、テレビ画面の輝度信号（相対値）に対する
照明の照度レベルは第２図に示す関係になる。Here, when the illumination light in the living room is changed in the range of 0 to 1000 lx when the brightness of the TV screen changes from 0 to 100%, the illuminance level of the illumination with respect to the brightness signal (relative value) of the TV screen is the first level. The relationship shown in Fig. 2 is obtained.
（３）（１）、（２）で算出した色度座標（x,y）、照
度値（Ｅ）を有する照明光を実現するための三光色の適
正混光照度比を以下の関係式によって算出する。(3) Calculate an appropriate light-mixing illuminance ratio of three light colors for realizing illumination light having the chromaticity coordinates (x, y) and illuminance value (E) calculated in (1) and (2) by the following relational expression To do.
設定した色光の色度座標（x,y）、照度Elx 赤色光源の色度座標（ｘ′r,y′ｒ）、照度Erlx 緑色光源の色度座標（ｘ′g,y′ｇ）、照度Eglx 青色光源の色度座標（ｘ′b,y′ｂ）、照度Eblxとする ｘ＝（Erx′r/y′ｒ＋Egx′g/y′ｇ＋Ebx′b/y′ｂ）／（Er/y′ｒ＋Eg/y′ｇ＋
Eb/y′ｂ） ｙ＝（Er＋Eg＋Eb）／（Er/y′ｒ＋Eg/y′ｇ＋Eb/y′ｂ） Ｅ＝Er＋Eg＋Eb 調光制御部４は混光比演算部３で求めた混光照度比に従
い、三光色の光源それぞれの照度を設定する。色光出力
部５は光の三原色に対応した三光色（赤色光、緑色光、
青色光）の光源で構成され、これらを拡散板で混光して
先に指定された色度と照度を有する照明光を出力する。Chromaticity coordinates (x, y) of set color light, illuminance Elx chromaticity coordinates of red light source (x ′ r , y ′ r ), illuminance E r lx chromaticity coordinates of green light source (x ′ g , y ′ g ). , Illuminance E g lx chromaticity coordinates of blue light source (x ′ b , y ′ b ), and illuminance E b lx x = (E r x ′ r / y ′ r + E g x ′ g / y ′ g + E b x 'b / y' b) / (E r / y 'r + E g / y' g +
E b / y 'b) y = (E r + E g + E b) / (E r / y' r + E g / y 'g + E b / y' b) E = E r + E g + E b dimming controller Reference numeral 4 sets the illuminance of each of the three light sources according to the mixed light illuminance ratio obtained by the mixed light ratio calculation unit 3. The color light output section 5 is a three-light color corresponding to the three primary colors of light (red light, green light,
It is composed of a light source of (blue light), and these are mixed by a diffusion plate to output illumination light having the chromaticity and illuminance specified previously.
ここで、本発明において、色光出力部５の三光源（赤
色光源、緑色光源、青色光源）を、NTSC方式で決められ
たテレビ画像の三原色の色度（Ｒ＝（0.67,0.33）、Ｇ
＝（0.21,0.71）、Ｂ＝（0.14,0.08））で発光する蛍光
体を塗布した蛍光ランプで構成した場合、三光色の混光
によって実現できる照明光の色度範囲は、第３図の三角
形で囲まれる色度範囲となる。また、この時、テレビ画
像のRGB信号比率が1:1:1、輝度信号が60％であったとす
ると、三光色の混光照度比はEr:Eg:Eb＝200lx:200lx:20
0lx、照明光の色度は第３図のＰ点Ｗ示した（0.24,0.1
7）となる。Here, in the present invention, the three light sources (red light source, green light source, and blue light source) of the color light output unit 5 are set to have chromaticity (R = (0.67,0.33), G) of three primary colors of a television image determined by the NTSC system.
= (0.21,0.71), B = (0.14,0.08)), the chromaticity range of illumination light that can be realized by mixing three light colors is as shown in FIG. It is the chromaticity range enclosed by the triangle. At this time, if the RGB signal ratio of the TV image is 1: 1: 1 and the luminance signal is 60%, the mixed illuminance ratio of the three light colors is E r : E g : E b = 200lx: 200lx: 20.
0lx, the chromaticity of illumination light is shown at point P in Fig. 3 (0.24,0.1
7).
発明の効果 本発明により、カラーテレビ画像の色や明るさレベル
と連動して変化する照明光を瞬時に実現でき、AV環境の
カラー演出照明としての効果は大きい。EFFECTS OF THE INVENTION According to the present invention, it is possible to instantly realize illumination light that changes in association with the color and brightness level of a color television image, and the effect as color effect illumination in an AV environment is great.
第１図は本発明による光色可形照明装置のブロツク構成
図、第２図は輝度信号と照度レベルとの対応例を示すグ
ラフ、第３図は照明光の色度範囲を示す色度図、第４図
は従来例の光色可変照明装置のブロック構成図である。 １……RGB信号出力部、２……Ｙ信号出力部、３……混
光比演算部、４……調光制御部、５……色光出力部、６
……赤色光調光部、７……緑色光調光部、８……青色光
調光部、９……調光記憶部、10……再生色光出力部。FIG. 1 is a block diagram of a light-colorable illuminating device according to the present invention, FIG. 2 is a graph showing an example of correspondence between a luminance signal and an illuminance level, and FIG. 3 is a chromaticity diagram showing a chromaticity range of illumination light. FIG. 4 is a block diagram of a conventional variable light color illumination device. 1 ... RGB signal output section, 2 ... Y signal output section, 3 ... Mixing ratio calculation section, 4 ... Dimming control section, 5 ... Color light output section, 6
...... Red light dimming unit, 7 ...... Green light dimming unit, 8 ...... Blue light dimming unit, 9 ...... Dimming storage unit, 10 ...... Reproduction color light output unit.
Claims (1)
Ｇ（緑色）、Ｂ（青色）の色信号を取り出すRGB信号出
力部と、カラーテレビから輝度信号を取り出すＹ信号出
力部と、RGB信号出力部から出力される色信号とＹ信号
出力部から出力される輝度信号とを入力し光源に使用し
た光の三原色に対応する三色光（赤色光、緑色光、青色
光）の適正混光照度比を算出する混光比演算部と、混光
比演算部からの信号を入力し、三色光の照度を設定する
調光制御部と、三色光を混光して設定された色度と照度
の照明光を出力する色光出力部とから構成したことを特
徴とする光色可変形照明装置。1. A display image R (red) from a color television,
An RGB signal output section that extracts G (green) and B (blue) color signals, a Y signal output section that extracts a luminance signal from a color television, and a color signal and Y signal output section that are output from the RGB signal output section. And a mixed light ratio calculation unit for calculating an appropriate mixed light illuminance ratio of three color lights (red light, green light, blue light) corresponding to the three primary colors of light used as a light source by inputting the luminance signal It is composed of a dimming control unit that inputs the signal from the camera and sets the illuminance of the three-color light, and a color light output unit that mixes the three-color light and outputs the illumination light of the set chromaticity and illuminance. Variable color lighting system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63313388A JPH0812793B2 (en) | 1988-12-12 | 1988-12-12 | Variable color lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63313388A JPH0812793B2 (en) | 1988-12-12 | 1988-12-12 | Variable color lighting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02158094A JPH02158094A (en) | 1990-06-18 |
| JPH0812793B2 true JPH0812793B2 (en) | 1996-02-07 |
Family
ID=18040667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63313388A Expired - Fee Related JPH0812793B2 (en) | 1988-12-12 | 1988-12-12 | Variable color lighting system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0812793B2 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5242888A (en) * | 1990-01-25 | 1993-09-07 | Arkwright, Incorporated | Polymeric matrix for thermal transfer recording |
| JPH0577894U (en) * | 1991-07-09 | 1993-10-22 | 日本電気ホームエレクトロニクス株式会社 | Lighting equipment |
| JP2765308B2 (en) * | 1991-10-30 | 1998-06-11 | 松下電器産業株式会社 | Lighting equipment |
| KR101044709B1 (en) * | 2004-01-05 | 2011-06-28 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Method for Extracting and Processing Encoded Video Content in Rendered Color Space to Be Mimicked by Ambient Light Sources |
| KR20060112677A (en) * | 2004-01-05 | 2006-11-01 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Ambient light derived from subsampling of video content and mapped through unrendered color space |
| WO2005069640A1 (en) * | 2004-01-06 | 2005-07-28 | Koninklijke Philips Electronics, N.V. | Ambient light script command encoding |
| JP2008505350A (en) * | 2004-06-30 | 2008-02-21 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | An active frame system for ambient light using a video display as a signal source. |
| TWI280054B (en) * | 2005-08-08 | 2007-04-21 | Compal Electronics Inc | Method for simulating the scenes of the image signals |
| CN101427577A (en) | 2006-04-19 | 2009-05-06 | 夏普株式会社 | Data transmission device, data transmission method, viewing environment control device, viewing environment control system, and viewing environment control method |
| WO2007123008A1 (en) | 2006-04-21 | 2007-11-01 | Sharp Kabushiki Kaisha | Data transmission device, data transmission method, audio-visual environment control device, audio-visual environment control system, and audio-visual environment control method |
| EP2040472A4 (en) | 2006-06-13 | 2009-11-11 | Sharp Kk | DEVICE AND METHOD FOR TRANSMITTING DATA, AND DEVICE, SYSTEM AND METHOD FOR CONTROLLING THE AUDIOVISUAL ENVIRONMENT |
| CN110602837B (en) * | 2019-10-22 | 2021-12-28 | 滨州学院 | Method and system for determining maximum brightness of super-three-color LED light source matched target chromaticity |
-
1988
- 1988-12-12 JP JP63313388A patent/JPH0812793B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02158094A (en) | 1990-06-18 |
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