JP2005157316A5 - - Google Patents

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JP2005157316A5
JP2005157316A5 JP2004306287A JP2004306287A JP2005157316A5 JP 2005157316 A5 JP2005157316 A5 JP 2005157316A5 JP 2004306287 A JP2004306287 A JP 2004306287A JP 2004306287 A JP2004306287 A JP 2004306287A JP 2005157316 A5 JP2005157316 A5 JP 2005157316A5
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light
types
light sources
emitting device
emission intensity
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JP2004306287A
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JP2005157316A (en
JP4253292B2 (en
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Claims (13)

発光色が異なる複数種の光源と、
前記複数種の光源のうち少なくとも一つの光源の発光強度をモニタする光検出手段と、
前記複数種の光源のすべてを所定の発光輝度で同時に発光させる発光期間と、前記複数種の光源のうち少なくとも一つ以上且つ前記光源の種類の数より少ない種類の光源の発光強度を減少させる監視期間とを設けるように制御する発光制御手段とを備えた発光装置であって、
前記発光制御手段は、前記監視期間における前記光検出手段からの発光強度情報を用いて、前記複数種の光源のうち少なくとも一つの光源の発光強度を制御することにより、前記複数種の光源による合成光を所望の輝度又は色度に調整することを特徴とする発光装置。 Multiple types of light sources with different emission colors;
Light detection means for monitoring the light emission intensity of at least one of the plurality of types of light sources;
A light emission period in which all of the plurality of types of light sources emit light simultaneously at a predetermined light emission luminance, and monitoring for reducing the light emission intensity of at least one of the plurality of types of light sources and less than the number of types of the light sources. A light-emitting device comprising a light-emission control means for controlling to provide a period ,
The light emission control unit controls light emission intensity of at least one of the plurality of types of light sources using light emission intensity information from the light detection unit in the monitoring period, thereby combining the plurality of types of light sources. A light- emitting device that adjusts light to a desired luminance or chromaticity . 前記発光制御手段は、前記複数種の光源のうち少なくとも一つ以上且つ前記光源の種類の数より少ない種類の光源を前記所定の発光強度にするタイミングまたは前記発光強度を減少させるタイミングのいずれか一方を、その他の光源を前記所定の発光強度にするタイミングまたは前記発光強度を減少させるタイミングに対してずらすことにより、前記監視期間を設けることを特徴とする前記請求項１に記載の発光装置。 The light emission control means either at least one of the plurality of types of light sources and a timing at which the number of types of light sources smaller than the number of types of the light sources is set to the predetermined emission intensity or a timing at which the emission intensity is decreased. The light emitting device according to claim 1 , wherein the monitoring period is provided by shifting a light source from a timing at which another light source is set to the predetermined light emission intensity or a timing at which the light emission intensity is decreased . 発光色が異なる複数種の光源と、
前記複数種の光源のうち少なくとも一つの光源の発光強度をモニタする光検出手段と、
前記複数種の光源のすべてを所定の発光輝度で同時に発光させる発光期間と、前記複数種の光源のうち少なくとも一つ以上且つ前記光源の種類の数より少ない種類の光源の発光強度を増加させる監視期間とを設けるように制御する発光制御手段とを備えた発光装置であって、
前記発光制御手段は、前記監視期間における前記光検出手段からの発光強度情報を用いて、前記複数種の光源のうち少なくとも一つの光源の発光強度を制御することにより、前記複数種の光源による合成光を所望の輝度又は色度に調整することを特徴とする発光装置。 Multiple types of light sources with different emission colors;
Light detection means for monitoring the light emission intensity of at least one of the plurality of types of light sources;
A light emission period in which all of the plurality of types of light sources emit light simultaneously at a predetermined light emission luminance, and monitoring for increasing the light emission intensity of at least one of the plurality of types of light sources and less than the number of types of light sources. A light-emitting device comprising a light-emission control means for controlling to provide a period ,
The light emission control unit controls light emission intensity of at least one of the plurality of types of light sources using light emission intensity information from the light detection unit in the monitoring period, thereby combining the plurality of types of light sources. A light- emitting device that adjusts light to a desired luminance or chromaticity . 前記発光制御手段は、前記複数種の光源のうち少なくとも一つ以上且つ前記光源の種類の数より少ない種類の光源を前記所定の発光強度にするタイミングまたは前記発光強度を増加させるタイミングのいずれか一方を、その他の光源を前記所定の発光強度にするタイミングまたは前記発光強度を増加させるタイミングに対してずらすことにより、前記監視期間を設けることを特徴とする前記請求項３に記載の発光装置。 The light emission control means is either one of a timing of setting at least one of the plurality of types of light sources and a number of types of light sources smaller than the number of types of the light sources to the predetermined emission intensity or a timing of increasing the emission intensity. The light emitting device according to claim 3 , wherein the monitoring period is provided by shifting a light source from a timing at which another light source is set to the predetermined emission intensity or a timing at which the emission intensity is increased . 前記光検出手段は、前記複数種の光源のうち少なくとも一つ以上の光源の発光波長を中心に、その分光感度特性を視感度特性にほぼ一致させていることを特徴とする前記請求項１乃至４のいずれかに記載の発光装置。2. The light detection unit according to claim 1, wherein the spectral sensitivity characteristic is substantially matched to the visual sensitivity characteristic centering on an emission wavelength of at least one of the plurality of types of light sources. 5. The light emitting device according to any one of 4. 前記光検出手段は、赤外線をカットする視感度フィルタを備えたことを特徴とする前記請求項１乃至５のいずれかに記載の発光装置。The light-emitting device according to claim 1, wherein the light detection unit includes a visibility filter that cuts infrared rays. 前記複数種の光源のすべての光源を消灯する期間を設け、Providing a period for turning off all the light sources of the plurality of types of light sources;
前記光検出手段は、前記複数種の光源のすべての光源を消灯した状態での光量をモニタすることを特徴とする前記請求項１乃至６のいずれかに記載の発光装置。The light-emitting device according to any one of claims 1 to 6, wherein the light detection unit monitors the amount of light in a state where all of the plurality of types of light sources are turned off. ３種類の光源を複数設けた光源ユニットと、A light source unit provided with a plurality of three types of light sources;
該光源ユニットからの光を面内に均一に照射するための導光板と、A light guide plate for uniformly irradiating light from the light source unit in a plane;
該導光板の近傍位置に設けられた光検出手段としての光センサとを備えたことを特徴とする前記請求項１乃至７のいずれかに記載の発光装置。The light-emitting device according to claim 1, further comprising: a light sensor as a light detection unit provided in the vicinity of the light guide plate. １または２種類の光源を複数設けた第１の光源ユニットと、A first light source unit provided with a plurality of one or two types of light sources;
該第１の光源ユニットからの光を面内に均一に照射するための第１の導光板と、A first light guide plate for uniformly irradiating light from the first light source unit in a plane;
これらの光源とは異なる２または１種類の光源を設けた第２の光源ユニットと、A second light source unit provided with two or one type of light source different from these light sources;
該第２の光源ユニットおよび第１の導光板からの光を面内に均一に照射するための第２の導光板と、A second light guide plate for uniformly irradiating light from the second light source unit and the first light guide plate in a plane;
該第１および第２の両導光板の近傍位置に設けられた光検出手段としての光センサとを備えたことを特徴とする前記請求項１乃至第８のいずれかに記載の発光装置。The light emitting device according to any one of claims 1 to 8, further comprising: a light sensor as a light detection means provided in the vicinity of both the first and second light guide plates. 前記請求項１乃至９のいずれかに記載の発光装置を用いたことを特徴とする表示装置。10. A display device using the light-emitting device according to claim 1. 前記請求項１または２に記載の発光装置を用いた表示装置であって、A display device using the light emitting device according to claim 1 or 2,
入力映像信号に含まれる輝度信号のレベルが所定の閾値以下になったとき、前記監視期間を開始することを特徴とする表示装置。A display device, wherein the monitoring period is started when a level of a luminance signal included in an input video signal becomes a predetermined threshold value or less. 前記請求項１または２に記載の発光装置を用いた表示装置であって、A display device using the light emitting device according to claim 1 or 2,
前記監視期間において、当該表示装置の駆動信号の大きさを伸長することを特徴とする表示装置。A display device characterized in that, during the monitoring period, the magnitude of the drive signal of the display device is expanded. 前記請求項１乃至９のいずれかに記載の発光装置を用いたことを特徴とする読み取り装置。A reading device using the light-emitting device according to claim 1.
JP2004306287A 2002-03-01 2004-10-21 LIGHT EMITTING DEVICE AND DISPLAY DEVICE AND READING DEVICE USING THE LIGHT EMITTING DEVICE Expired - Fee Related JP4253292B2 (en)

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JP2002211175 2002-07-19
JP2002340052 2002-11-22
JP2004306287A JP4253292B2 (en) 2002-03-01 2004-10-21 LIGHT EMITTING DEVICE AND DISPLAY DEVICE AND READING DEVICE USING THE LIGHT EMITTING DEVICE

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JP2003573907A Division JP3733553B2 (en) 2002-03-01 2003-02-27 Display device

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JP2005157316A5 true JP2005157316A5 (en) 2005-09-08
JP4253292B2 JP4253292B2 (en) 2009-04-08

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