JPS6145671Y2 - - Google Patents
Info
- Publication number
- JPS6145671Y2 JPS6145671Y2 JP1703579U JP1703579U JPS6145671Y2 JP S6145671 Y2 JPS6145671 Y2 JP S6145671Y2 JP 1703579 U JP1703579 U JP 1703579U JP 1703579 U JP1703579 U JP 1703579U JP S6145671 Y2 JPS6145671 Y2 JP S6145671Y2
- Authority
- JP
- Japan
- Prior art keywords
- color
- light
- brightness
- image
- detection
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 15
- 238000005286 illumination Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 230000010287 polarization Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002471 indium Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 150000003475 thallium Chemical class 0.000 description 1
Landscapes
- Transforming Electric Information Into Light Information (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Description
【考案の詳細な説明】
本考案は、テレビジヨン画像、映画などの映像
を観賞する際に、この映像に応じて明るさ、彩度
等が制御された照明光を発生できる照明装置を提
供せんとするものである。[Detailed description of the invention] The present invention provides a lighting device that can generate illumination light whose brightness, saturation, etc. are controlled according to the images when viewing images such as television images and movies. That is.
第1図は、映像表示装置の一例としての投写形
カラーテレビジヨン受像機を示し、同図におい
て、1はプロジエクタを示す。プロジエクタ1内
には、投写用のカラー受像管2と反射鏡3とレン
ズ4とが収納されており、カラー受像管2のカラ
ー映像が拡大されて反射形スクリーン5に投影さ
れる。 FIG. 1 shows a projection type color television receiver as an example of a video display device, and in the figure, 1 indicates a projector. A color picture tube 2 for projection, a reflecting mirror 3, and a lens 4 are housed in the projector 1, and a color image from the color picture tube 2 is enlarged and projected onto a reflective screen 5.
かかる投写形カラーテレビジヨン受像機を用い
た本考案の一実施例について第2図以下を参照し
て説明する。第2図に示すように、スクリーン5
に拡大して映し出された映像を観客6が観賞して
いる部屋内で、スクリーン5の周辺の例えば天井
と壁との境、壁と床との境に夫々照明手段7a,
7b,7c,7dが設けられる。この照明手段7
a〜7dによりスクリーン5の周辺の天井、壁
面、床等が照明されるようになされる。 An embodiment of the present invention using such a projection type color television receiver will be described with reference to FIG. 2 and subsequent figures. As shown in Figure 2, the screen 5
In the room where the audience 6 is viewing the enlarged and projected image, lighting means 7a are installed around the screen 5, for example, at the boundary between the ceiling and the wall, and between the wall and the floor.
7b, 7c, and 7d are provided. This lighting means 7
A to 7d illuminate the ceiling, wall surface, floor, etc. around the screen 5.
第3図に照明手段7a〜7dの一例を示す。第
3図において、8R,8G,8Bの夫々は、管面
が赤、緑、青に夫々着色された螢光管を示し、9
R,9G,9Bの夫々は、螢光管8R,8G,8
Bに対する反射板を示す。螢光管8R,8G,8
Bから発生した赤、緑、青の色光が乳白ガラス1
0により混合されて外部に取り出される。 FIG. 3 shows an example of illumination means 7a to 7d. In FIG. 3, 8R, 8G, and 8B indicate fluorescent tubes whose tube surfaces are colored red, green, and blue, respectively, and 9
R, 9G, 9B are fluorescent tubes 8R, 8G, 8, respectively.
A reflector plate for B is shown. Fluorescent tube 8R, 8G, 8
Red, green, and blue colored light generated from B is milky white glass 1
0 and taken out to the outside.
また、スクリーン5に表示される映像の色又は
明るさを検出する複数の検出手段が設けられてい
る。この例では、投写用カラー受像管2のフエー
ス面上の四隅に第4図に示すように検出素子11
a〜11dを設けている。検出素子11a〜11
dは、カラー受像管2のカラー映像の赤、緑及び
青の夫々の成分の量を検出するもので、具体的に
は、各色光成分を光学フイルタで分離してCd
S、フオトダイオード等の光電変換素子に与える
構成で実現できる。また、第4図において破線で
示すようにカラー受像管2のフアンネル部に検出
素子を設けても良い。更に、スクリーン5に映出
される映像自体から検出するようにしても良い。 Further, a plurality of detection means for detecting the color or brightness of the image displayed on the screen 5 are provided. In this example, as shown in FIG.
a to 11d are provided. Detection elements 11a to 11
d detects the amount of each of the red, green, and blue components of the color image of the color picture tube 2. Specifically, each color light component is separated by an optical filter and C d
This can be realized by a configuration provided to a photoelectric conversion element such as a photodiode or the like. Further, a detection element may be provided in the funnel portion of the color picture tube 2, as shown by the broken line in FIG. Furthermore, the detection may be performed from the image itself displayed on the screen 5.
この検出素子11a〜11dの検出出力から照
明手段7a〜7dの螢光管8R,8G,8Bを駆
動する信号が形成される。第5図において、12
R,12G,12Bの夫々は、検出素子11a〜
11dのうちの何れかを構成する受光素子を示
し、各受光素子から三原色光の各色光成分の量に
応じたレベルの検出出力が発生する。この検出出
力がアンプ13R,13G,13Bを介して検波
回路14R,14G,14Bに供給され、この検
波出力が積分器15R,15G,15Bに供給さ
れる。積分器15R,15G,15Bは、三原色
光に対応する検出信号の平均値を取り出すもの
で、この平均値がドライブ回路16R,16G,
16Bに供給され、ドライブ回路16R,16
G,16Bによつて螢光管8R,8G,8Bが駆
動される。したがつて螢光管8R,8G,8B
は、映像の周辺部の明るさ及び色の平均値に対応
して発光し、周辺を照明する。なお、映像の色又
は明るさを検出する他の手段としては、映像信号
をサンプリングすることにより、特定の箇所又は
全体の傾向の明るさ及び色の情報を得、これをド
ライブ回路に与えるようにしても良い。 Signals for driving the fluorescent tubes 8R, 8G, 8B of the illumination means 7a-7d are formed from the detection outputs of the detection elements 11a-11d. In Figure 5, 12
Each of R, 12G, and 12B is a detection element 11a to
11d, each light receiving element generates a detection output of a level corresponding to the amount of each color light component of the three primary color lights. This detection output is supplied to detection circuits 14R, 14G, 14B via amplifiers 13R, 13G, 13B, and this detection output is supplied to integrators 15R, 15G, 15B. The integrators 15R, 15G, 15B take out the average value of the detection signals corresponding to the three primary color lights, and this average value is sent to the drive circuits 16R, 16G,
16B, drive circuits 16R, 16
Fluorescent tubes 8R, 8G, and 8B are driven by G and 16B. Therefore, fluorescent tubes 8R, 8G, 8B
emits light in accordance with the average brightness and color of the peripheral area of the image, illuminating the surrounding area. Note that another method for detecting the color or brightness of an image is to obtain information on the brightness and color of a specific location or overall trend by sampling the video signal, and to provide this information to the drive circuit. It's okay.
上述の一実施例の説明から理解されるように、
本考案に依れば、スクリーン5の映像の周辺部
(四隅)の明るさ又は色を抽出し、この成分に応
じた照明光で室内のスクリーン5の周辺を照明す
るので、快適な映像観賞環境を形成することがで
きる。つまり、スクリーン5の映像の明るさによ
つて周辺の明るさが変化して常に一定の条件で映
像を見ることができ、映像を見易くするために、
室内の照明を切つたり、調整したりする煩しさが
ないと共に、映像とその周囲との間の異和感が生
ぜず、長時間にわたつて観賞していても疲労しな
いようにできる。 As understood from the description of one embodiment above,
According to the present invention, the brightness or color of the periphery (four corners) of the image on the screen 5 is extracted, and the periphery of the indoor screen 5 is illuminated with illumination light according to this component, creating a comfortable video viewing environment. can be formed. In other words, the brightness of the surrounding area changes depending on the brightness of the image on the screen 5, so that the image can always be viewed under constant conditions, and in order to make the image easier to see,
There is no need to turn off or adjust the lighting in the room, and there is no sense of discomfort between the image and its surroundings, so you can watch it for a long time without getting tired.
第6図は、照明手段の他の例を示す。つまり、
螢光管8R(他の螢光管8G,8Bも同様)の光
を直線偏光板17a,17bを介して照明光と
し、一方の直線偏光板17aを固定とし、他方の
直線偏光板17bをステツピングモータにより回
動する構成とする。第6図において矢印で示すよ
うな偏光軸を直線偏光板17a,17bが有して
いるので、これらの偏光軸が一致するときで透過
光量が最大となり、これらが直交するときで透過
光量が最小(略々零)となる。そして第7図に示
すように、検波回路14Rの出力を微分回路18
Rに供給し、赤の色光の変化量をこの微分回路1
8Rで検出し、この検出出力をモータ駆動回路1
9Rに供給する。このモータ駆動回路19Rによ
つてステツピングモータ20Rが回動され、前述
の偏光板17bがモータ20Rによつて所定角度
だけ回動される。 FIG. 6 shows another example of the illumination means. In other words,
The light from the fluorescent tube 8R (same for the other fluorescent tubes 8G and 8B) is used as illumination light through the linear polarizing plates 17a and 17b, with one linear polarizing plate 17a being fixed and the other linear polarizing plate 17b being fixed. It is configured to be rotated by a ping motor. Since the linear polarizing plates 17a and 17b have polarization axes as shown by the arrows in FIG. 6, the amount of transmitted light is maximum when these polarization axes coincide, and the amount of transmitted light is minimum when they are perpendicular to each other. (approximately zero). Then, as shown in FIG.
R, and the amount of change in red color light is calculated by this differentiating circuit 1.
8R, and this detection output is sent to the motor drive circuit 1.
Supply to 9R. A stepping motor 20R is rotated by this motor drive circuit 19R, and the aforementioned polarizing plate 17b is rotated by a predetermined angle by the motor 20R.
なお、照明光の光源としては、螢光管以外にハ
ロゲン化タリウム灯(緑色)、ハロゲン化インジ
ウム灯(青色)などを用いることができる。 Note that as a light source for illumination light, a halogenated thallium lamp (green), a halogenated indium lamp (blue), etc. can be used in addition to a fluorescent tube.
更に、三原色の光源を用いた照明手段を用いる
以外に、第8図に示すようにニオブ酸リチウム
(LiNbO3)21を2枚の透明電極22a,22b
で挾んだ構成とし、この透明電極22a,22b
に加わる印加電圧によつてランプ23からの白色
光を所望の色調のものに変換することもできる。
24,25は、偏光板を示し、26はレンズを示
す。 Furthermore, in addition to using an illumination means using a light source of three primary colors, as shown in FIG.
The transparent electrodes 22a, 22b are sandwiched between
The white light from the lamp 23 can also be converted into a desired color tone by applying a voltage to the lamp 23 .
24 and 25 indicate polarizing plates, and 26 indicates a lens.
なお、投写形テレビジヨン受像機以外の映画等
の映像についても本考案は使用して好適である。 It should be noted that the present invention is suitable for use with images such as movies other than projection type television receivers.
第1図は本考案の一実施例に用いた投写形カラ
ーテレビジヨン受像機の構成を示す図、第2図は
本考案の一実施例の説明に用いる図、第3図は照
明手段の一例を示す断面図、第4図は検出素子の
取付位置の説明に用いる図、第5図は照明手段を
駆動するための構成の一例のブロツク図、第6図
及び第7図は照明手段の他の例の斜視図及びその
駆動系のブロツク図、第8図は照明手段の更に他
の例の斜視図である。
1はプロジエクタ、2はカラー受像管、5はス
クリーン、7a〜7dは照明手段、8R,8G,
8Bは夫々赤、緑及び青の色光を発生する螢光
管、11a〜11dは検出素子である。
Fig. 1 shows the structure of a projection type color television receiver used in one embodiment of the present invention, Fig. 2 is a diagram used to explain one embodiment of the present invention, Fig. 3 is a cross-sectional view showing an example of an illumination means, Fig. 4 is a diagram used to explain the mounting position of a detection element, Fig. 5 is a block diagram of an example of a configuration for driving the illumination means, Figs. 6 and 7 are perspective views of another example of the illumination means and block diagrams of its drive system, and Fig. 8 is a perspective view of still another example of the illumination means. 1 is a projector, 2 is a color picture tube, 5 is a screen, 7a to 7d are illumination means, 8R, 8G,
Reference numeral 8B denotes fluorescent tubes which generate red, green and blue light, respectively, and reference numerals 11a to 11d denote detecting elements.
Claims (1)
又は色が制御された光を発生する光源と、上記映
像表示部の映像の色又は明るさを検出する複数の
検出手段と、この検出手段の出力から上記光源に
対する駆動信号を形成する手段とを備えてなる照
明装置。 a light source that is disposed in a space around the video display section and generates light whose brightness or color is controlled; a plurality of detection means that detects the color or brightness of the video on the video display section; means for forming a drive signal for the light source from the output of the means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1703579U JPS6145671Y2 (en) | 1979-02-13 | 1979-02-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1703579U JPS6145671Y2 (en) | 1979-02-13 | 1979-02-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55118582U JPS55118582U (en) | 1980-08-21 |
JPS6145671Y2 true JPS6145671Y2 (en) | 1986-12-22 |
Family
ID=28841659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1703579U Expired JPS6145671Y2 (en) | 1979-02-13 | 1979-02-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6145671Y2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999053728A1 (en) * | 1998-04-13 | 1999-10-21 | Matsushita Electric Industrial Co., Ltd. | Illumination control method and illuminator |
CN1331349C (en) * | 2002-07-04 | 2007-08-08 | 皇家飞利浦电子股份有限公司 | Method of and system for controlling an ambient light and lighting unit |
EP1704726B8 (en) * | 2004-01-05 | 2018-09-12 | TP Vision Holding B.V. | Ambient light derived from video content by mapping transformations through unrendered color space |
TWI280054B (en) * | 2005-08-08 | 2007-04-21 | Compal Electronics Inc | Method for simulating the scenes of the image signals |
WO2015045154A1 (en) * | 2013-09-30 | 2015-04-02 | 株式会社 東芝 | Lighting apparatus, display apparatus, and control method |
JP6372218B2 (en) * | 2014-07-24 | 2018-08-15 | 株式会社リコー | LIGHTING DEVICE, VIDEO PROJECTION DEVICE, VIDEO PROJECTION SYSTEM, AND CONTROL METHOD |
JP6688983B2 (en) * | 2015-03-12 | 2020-04-28 | パナソニックIpマネジメント株式会社 | Lighting system |
-
1979
- 1979-02-13 JP JP1703579U patent/JPS6145671Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS55118582U (en) | 1980-08-21 |
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