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      照明知識 Knowledge of lighting

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      照明知識 Knowledge of lighting

      發布日期:2017-04-27 作者:臨潼科技 點擊:


      (一)照明基本術語 No.1 Lighting basic term

      ■顯色性(Ra) :原則上,人造光線應與自然光相同,使用的肉眼能正確辨別事物的顏色光源對于物體顏色呈現的程度為顯色性,常叫

      做“顯色指數(Ra) ”。

      ■色溫(K):當光源所發出光的顏色;與“黑體”在某一溫度下輻射的顏色相同時,“黑體’’的溫度就稱為該光源的色溫,“黑體" 的溫度越高,光譜中藍色的成份則越多,而紅色的成份則越少。例如:白熾燈的光色是暖白色,其色溫表示為2700K, 而日光色熒光燈的色溫表示方法則是6000K。

      ■光色:光色實際上是色溫,大環境條件下分三類:暖色<3300K、中間色3300K-5300K、日光色>5300K,由于光線中光譜的組成有

      差別,因此即使光色相同,光的顯色性也可能不同。

      ■Display color rate: in principle,the man-made ray and nature ray both is the same,use naked eye can adapt to distinguith case color lamp- house,for the object color show itself grade become display color rate,usually we call it is "display color rate".

      ■Color temperature: then the lamp-house shoot the light color,and "black body" temperature higher and higher.in the action spectrum analysis is be more and more.and that red anlysis will be less and less, for example: the incandescent lampe's light color is warm-white,the color temperature denotation is 2700K,and that light color fluorescence lampe's color temperature denotation measure is 6000K.

       Light color: in fact the Light color is the color temperature,large circumstance will be part three style: warm white<3300K, mid-color3300K- 5300KS daylight color>5300K,because the action spectrum in the ray have different pare be compose,so that even if the light color is the same.maybe the light display color is dissimilar.

      (二)顯色性與顯色指數的一些相關知識

      No.2 About a lost of the display color rate and display color denotation correlative knowledge.

      ■光源對物體的顯色能力稱為顯色性,是通過與同色溫的參考或基準光源(白熾燈或畫光)下物體外觀顏色的比較。光所發射的光譜內 容決定光源的光色,但同樣光色可由許多、少數甚至僅僅兩個單色的光波組合而成,對各個顏色的顯色性亦大不相同。相同光色的光 源會有相異的光譜組成,光譜組成較廣的光源較有可能提供較佳的顯色品質。

      ■顯色分兩種:

      1、 忠實顯色:能正確表現物質本來的顏色需使用顯色指數(Ra)高的光源,其數值接近100,顯色性最好。

      2、效果顯色:要鮮明地強調特定色彩,表現美的生活可以利用加色的方法來加強顯色效果。采用低色溫光源照射,能使紅色更加鮮艷;

      采用中等色溫光源照射,使藍色具有清涼感;采用高色瘟光源照射,使物體有冷的感覺。

      ■The lamp-house for the object's display corol ability be intitule is display corol rate, is pass the same color temperature ref errence or benchmark lapm-house (fluorescence lampe or draw light) below the object facies to be compare.the light shoot the action spectrum content decide the light color of the lampe-house, but also the light color can have more and less indeed only pair unit color's light-wave to be compose, for the action spectrum to compse rather extensive lamp-house relatively be likely to offer better display color quality.

      ■Display color part two kinds.

      Fealty display color: can right exhibition object originaly color need to use the display color rate high lamp-house, that numerical value appropinquity 100, display color rate is the best.

      Effect display color: must brightly emphasize specifically color, exhibition beautiful life can using add color's means to strengthen display color effect.adopt the low color temperature lamp-house shooting,can be let the red brightly and brightly;adopt mid-color temperature I amp- house shoting.can be the blue have refrigerant feeling;adopt high color temperature lamp-house shooting,let the object have cool feeling.

      (三)顯色指數與顯色性的關系

      No.3 Display color exponential and display color rate relation

      ■ 當光源光譜中很少或缺乏物體在基準光源下所反射的主波時,會使顏色產生明顯的colorshift。色差程度越大,光源對該色的顯色性 越差。演色指數系數(Kaufman)仍為目前定義光源顯色性評價的普遍方法。

      ■白熾燈的顯色指數定義為100,視為理想的基準光源。此系統以8種彩度中等的標準色樣來檢驗,比較在測試光源下與在同色溫的基準 下此8色的偏離(Deviation )程度,以測量該光源的顯色指數,取平均偏差值Ra20-100,以100為最高,平均色差越大,Ra值越低。 低于20的光源通常不適于一般用途。

      ■Then in the lamp-house action spectrum have a little or absence object below benchmark lamp-house shooting main-wave, will be let color bring obvious color shift.color difference grade more bigger,lamp-house vs the color display color rate be more bad.deduce color exponential coefficient still is at present define lamp-house display color rate appraise usual means.

      ■ Incandescent lampe's color temperature exponential define is 100f treat perfect benchmark lamp-house, the system as 8 kinds color grade midding normative color model to check, below the comparative test lamp-house and below the same color temperature's benchmark lamp- house. the 8 colors deviation grade, as the measure the lamp-house's display color enponential,adopt average deviation rate 20-100, as the 100 be the highest, average color more bigger, rate value more lower, under the 20 lamp-house usually unsuitable ecumenical using.


      (四)光色應用

      No.4 the application of the light color

      ■暖色光:暖色光的色溫在3300K以下,暖色光與白熾燈相近,能給人以溫暖、健康、舒適的感覺,適用于家庭、住宅、宿舍、賓館等

      場所或溫度比較低的地方。

      ■白色光:又叫中性色,它的色溫在3300K-5300K之間,中性色由于光線柔和,使人有愉快、舒適、安詳的感覺,適用于商店、醫院、

      辦公室、飯店、候車室等場所。

      ■冷色光:又叫日光色,它的色溫在5300K以上,光源接近自然光,有明亮的感覺,使人精力集中,適用于辦公室、會議室、教室、

      繪圖室、圖書館的閱覽室、展覽櫥窗等場所。

      ■Warm color light: The warm color light's color temperature under 3000K, warm color light and incandescence lamp close, can as the warm, health, suitable feeling for people, be the same with family^ housing、dorm、hotel etc place or lower temperature place.

      ■White color light: also be call mid-color, its color temperature in the 3300K-5300K, cause the ray of the mid-color have suavity, let people have pleasure、suirable、serene feeling.be the same with shop、hospital、restaurant、waiting-room etc place.

      ■Cool color light: also be call daylight color, its color temperature above te 5300K, lamp-house nearly nature light, its have bright feeling, let people's energy will heighten, be the same with office、 counci卜chamber、 classroom、 atelier、 library’s reading-room、 exhibition shopwindow etc place.

      (五)光源的顯色參照表

      No.5 the lamp-house display color consult list

      (六)IP (防護等級)

      No.6 IP (International Protection rating)

      ■ ip防護等級:

      是國際上用來認定燈具之防護等級的代號,ip等級由兩個數字所組成,第一個數字表示燈具防塵;第二個數字表示燈具防水,數字越 大表示其防護等級越高。

      ■ IP(lngress Proteeion)index of performance:

      it is use cognizance index of performance code name of the light fixture in the international.

      ■防塵等級一覽表:

      Index of the dustproof Performance rate:

      ■防塵等級一覽表:

      Index of the waterproof Performance rate:






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