LED路燈二次光學(xué)設(shè)計

LED路燈

二次光學(xué)設(shè)計ByJean201009內(nèi)容提要LED信號燈二次光學(xué)設(shè)計LED路燈二次光學(xué)設(shè)計LED信號燈

二次光學(xué)設(shè)計

ByJean2006交展會－北京LED信號燈的基本構(gòu)成LED交通信號燈2004年左右逐漸占領(lǐng)市場，原因：LED亮度提高，價格下降LED的諸多優(yōu)點存在的問題：（眾多廠家如雨后春筍）重生產(chǎn)，不達(dá)標(biāo)光通量浪費嚴(yán)重（成本過高）在LED信號燈很少有公司做光學(xué)設(shè)計！LED信號燈標(biāo)準(zhǔn)－－光學(xué)標(biāo)準(zhǔn)中華人民共和國LED交通信號燈國標(biāo)GB14887-2003美國標(biāo)準(zhǔn)歐洲標(biāo)準(zhǔn)光學(xué)相關(guān)主要要求：光強(qiáng)分布色度LED信號燈二次光學(xué)設(shè)計復(fù)旦大學(xué)上海澳星無錫安邦我們的方案－光學(xué)設(shè)計2006二次光學(xué)設(shè)計內(nèi)容提要整體設(shè)計色片設(shè)計色片小樣品結(jié)果分析與LED顆數(shù)確定透鏡設(shè)計整體設(shè)計色片設(shè)計主體思想：以根據(jù)國標(biāo)建立起來的光形為依據(jù)設(shè)計色片，實現(xiàn)光在空間里方向和數(shù)量的合理分配。特點：分配明確－有多少光分配到哪個角度實現(xiàn)方法：強(qiáng)度分配：控制各分發(fā)散面在色片面上的投影比例，從而達(dá)到對平行光在空間的光強(qiáng)分配。角度分配：控制投射面與色片的角度，實現(xiàn)光方向的控制。具體說是沿色片的上下和左右軸的偏轉(zhuǎn)角度LED信號燈二次光學(xué)設(shè)計

-色片設(shè)計過程根據(jù)信號燈標(biāo)準(zhǔn)設(shè)計投射方案設(shè)計圖形（角度、尺寸）方案調(diào)整利用Autocad給出立體圖建議圖畫立體圖制作模具GB14887-2003目標(biāo)角度-20-15-10-50510152003558510085553-3

758075

-5

35

60

35

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820222光學(xué)面罩單元投射原理圖色片投射圖形方案（兩種）色片構(gòu)型方法一：塔形方案一：塔形方案建議圖方案二—棱柱投射方案二-理想投射想法（1）理想投射想法（1）

-30-25-20-15-10-5051015202530-202222222222

2

2

2-152222446222222-10234810153015108432-52361235406040351263203102030558510085553020103方案二-理想投射想法（2）色片強(qiáng)度控制-各角度面積分配比例工藝

28.3120.712.654.254.2512.6520.7228.31

目標(biāo)-17.5-12.5-7.5-2.52.57.512.517.531.89-202.313.233.4193.5233.5233.4193.232.3124.59-1503.2653.433.523.523.433.265016.74-10766.518186.5678.48-511162031312016110015203548.548.5352015色片圖形建議圖色片方案設(shè)計（以方案二為例）

設(shè)計中的重要參數(shù)計算光強(qiáng)度控制：邊長（面積）角度控制：給出必要的角度（以方便畫立體圖）工藝

28.3120.72112.6494.2544.25412.64920.72128.3110.2719

目標(biāo)-17.5-12.5-7.5-2.52.57.512.517.5

縱向邊長31.89-202.62.633232.62.621.40.8005486

邊長0.5214670.73075330.7734380.79694760.7969480.7734380.7307530.5214675.645212

24.59-153333333324

邊長

0.73863190.77669390.79733670.7973370.77669390.738632

4.625325

16.74-101066.518186.5610811.4282915

邊長1.26802470.76081480.8242162.28244442.2824440.8242160.7608151.26802510.271

0.824682

8.48-511162031312016111562.7507837

邊長0.72423721.05343591.31679492.04103212.0410321.31679491.0534360.72423710.271

0.972197

00112035003520111322.3275862

邊長0.85591671.55621212.7233712002.72337121.5562120.85591710.271

961.69279

510.49色片設(shè)計1－光強(qiáng)度控制色片設(shè)計2－重要參數(shù)1－角度控制

-色片平面色度與出射角的關(guān)系重要參數(shù)1－（角度控制）

-色片平面色度與出射角的關(guān)系n31－色片棱面與色片表面所成的角度x–平行光經(jīng)此色片棱面偏離中心的角度色片設(shè)計傾斜面與色片平面夾角出射角與色片法線夾角n1:1弧度變角度弧度變角度n2:1.5870.77935844.653930.52368530.00493n3:10.73824842.29850.48869328.00002pi3.1415930.73060341.860470.48234627.63638PC：1.5870.61637935.315930.39270222.500180.61599935.294120.39241822.48390.60473434.64870.38404722.004280.55662531.892270.34910320.002110.506829.03750.3141618.000060.50670829.032260.31409717.996440.49409328.309450.30543317.50.42912124.586810.26184315.002490.36164320.720620.21816712.500070.347919.93320.20944312.000210.33406619.140590.20071411.500070.29210516.73640.17453410.000080.2207612.648620.13097.5000180.17724510.155380.104726.0000180.1626419.3186510.0959935.5000030.1480148.4805650.0872785.0006470.1038355.9493320.0610873.5000260.0890545.1024020.052363.0000080.0742484.2541120.0436332.5000010.0594323.4052210.0349122.0003190.0297281.7032710.0174531.0000020.0148680.8518690.0087280.50007重要參數(shù)2：二面角重要參數(shù)2：二面角1－水平棱面與色片表面所成的角度2－水平棱面偏轉(zhuǎn)角X—水平棱面偏轉(zhuǎn)后與垂直于表面的面交線與色片表面所成的角工藝

28.3120.72112.6494.2544.25412.64920.72128.315.135510.2719

目標(biāo)-17.5-12.5-7.5-2.52.57.512.517.5

縱向邊長31.89-202.62.633232.62.6

21.40.8005486

角度0.56535010.41913440.25841030.08738280.0873830.25841030.4191340.56535

角度49.3224.0146314.8058185.00666795.00666814.80581824.0146349.32

45.39795

COS0.65183370.91344160.96679740.99618450.9961850.96679740.9134420.651834

邊長0.5214670.73075330.7734380.79694760.7969480.7734380.7307530.521467

5.645212

24.59-1533333333

24

角度0.53480860.3942370.24197210.081620.081620.24197210.3942370.53480910.270510.27054

角度30.64227522.58811513.863984.67648194.67648213.8639822.5881230.64228

COS0.86036620.92328990.97086730.99667090.9966710.97086730.923290.860366

邊長

0.73863190.77669390.79733670.7973370.77669390.738632

4.625325

16.74-101066.518186.5610

811.4282915

邊長1.26802470.76081480.8242162.28244442.2824440.8242160.7608151.268025

10.271

角度0.51239540.37621290.23020180.07751910.0775190.23020180.3762130.512395

角度33.0121.55541113.1895914.44151814.44151813.18959121.5554129.358092033.01

8.48-51116203131201611

1562.7507837

邊長0.72423721.05343591.31679492.04103212.0410321.31679491.0534360.724237

10.271

角度0.49870630.36530250.22312720.07506390.0750640.22312720.3653030.498706

20角度32.17320.93029312.7842444.30084594.30084612.78424420.9302928.5737628

0.972197

0011203500352011

1322.3275862

邊長0.85591671.55621212.7233712002.72337121.5562120.855917

10.271

角度0.49410270.36164970.22076670.07424630.0742460.22076670.361650.4941030.38199961.69279

角度28.3120.72112.6494.2544.25412.64920.72128.3145.4510.49色片設(shè)計光強(qiáng)度控制強(qiáng)度比等于長度比角度控制角度二面角1－水平棱面與色片表面所成角2－水平棱面偏轉(zhuǎn)角X—水平棱面偏轉(zhuǎn)后與垂直于表面的面交線與色片表面所成的角1－色片棱面與色片表面所成的角x–平行光經(jīng)此色片棱面偏離中心的角色片單元圖形模擬結(jié)果模擬相對值具體結(jié)果VH-30-20-10-5051020300標(biāo)準(zhǔn)值1%3%55%85%100%85%55%3%1%Copice_131%21%61%88%100%86%63%20%1%-3標(biāo)準(zhǔn)值

75%80%75%

Copice_13

72%88%73%

-5標(biāo)準(zhǔn)值

35%

60%

35%

Copice_13

36%

64%

36%

-10標(biāo)準(zhǔn)值

8%

30%

8%

Copice_13

13%

36%

12%

-20標(biāo)準(zhǔn)值2%

2%

2%Copice_130%

4%

0%綠單元發(fā)散角紅單元發(fā)散角紅單元發(fā)散角黃單元發(fā)散角國標(biāo)GB14887-2003200603285.1度200603304.4度200603316.2度200603304.4度下左右值比例466.7170.1201.8193.10-3041%25.96%6.24%7.34%8.24%0-20123%398%10.56%14.67%10.25%0-1022055%224.948%80.647%94.347%93.448%0-534085%33071%141.583%14974%11560%00400100%466.7100%170.1100%201.8100%193.1100%0534085%328.970%102.460%144.271%109.857%01022055%200.743%5633%84.342%68.836%020123%36.68%10.66%16.38%12.26%03041%22.75%6.44%8.14%6.84%3-530075%256.655%7242%122.461%108.356%3032080%295.663%98.458%164.982%110.357%3530075%254.455%85.950%125.962%75.539%5-1014035%14331%4526%64.932%5026%5024060%265.757%9757%12361%12062%51014035%133.729%49.729%6432%5327%10-20328%6815%26.916%26.713%37.619%10012030%171.737%57.434%80.840%53.928%1020328%55.812%25.615%21.211%20.511%20-3082%10.62%4.12%6.13%4.93%20082%36.98%12.37%16.38%16.59%203082%10.72%2.21%4.22%2.71%色片小樣結(jié)果與分析光學(xué)分配角度符合設(shè)計較好。光強(qiáng)分配符合設(shè)計較好。各角度的光強(qiáng)值與設(shè)計基本一致。存在的問題：光形較離散-有些光斑不完整存在問題的原因：色片是小單元，大單元中可以改善光的發(fā)散角為3.7度，采用5度會改善結(jié)論：色片小樣與設(shè)計一致LED數(shù)目估算顏色類別49顆LED單元中心光強(qiáng)LED光通量中心光強(qiáng)mcd發(fā)散角達(dá)到國標(biāo)所需LED數(shù)目400綠為準(zhǔn)紅1為準(zhǔn)紅2為準(zhǔn)黃為準(zhǔn)建議數(shù)目綠1466.72.24759327494959.29555185

2

2.14

51

51

62.065854

紅12451.66445921.7806680

139

21550.98254729.4126112

126.5118

黃21701

115110132.8124115139透鏡設(shè)計-透鏡參數(shù)取值程序確定顆數(shù)透鏡尺寸物距U像距V焦距f曲率r

LED發(fā)散角度出射光發(fā)散角透鏡物像公式：單面透鏡曲率公式：透鏡相關(guān)參數(shù)取值LED顆數(shù)總長邊數(shù)邊距透鏡邊長單透鏡半徑LED發(fā)散角物距透射光發(fā)散像距焦距曲率(PC)曲率(PMMA)透鏡厚度(PMMA)透鏡厚度(PC)852809.5429.3516.9514.683052.255-320.762.4236.5830.93.7083.0731212801024.251412.123044.785-274.853.5031.3526.482.9382.4391302801223.3313.4711.673037.325-229.044.5926.1322.073.3362.74913928012.5322.0512.7311.023033.595-206.140.1323.5119.863.342.744LED路燈二次光學(xué)設(shè)計ByJean路燈光學(xué)設(shè)計LED路燈二次光學(xué)設(shè)計過程整體設(shè)計色片設(shè)計透鏡設(shè)計整體設(shè)計

通過透鏡獲得5度發(fā)散光色片設(shè)計主體思想：根據(jù)路燈光學(xué)要求建立起來的光形為依據(jù)設(shè)計色片，實現(xiàn)光在空間里方向和數(shù)量的合理分配。特點：分配明確－有多少光分配到哪個角度實現(xiàn)方法：強(qiáng)度分配：控制各分發(fā)散面在色片面上的投影比例，從而達(dá)到對平行光在空間的光強(qiáng)分配。角度分配：控制投射面與色片的角度，實現(xiàn)光方向的控制。具體說是沿色片的上下和左右軸的偏轉(zhuǎn)角度LED路燈二次光學(xué)設(shè)計

-色片設(shè)計過程根據(jù)路燈標(biāo)準(zhǔn)設(shè)計投射方案設(shè)計圖形（角度、尺寸）計算重要參數(shù)畫立體圖模擬方案調(diào)整做模具路燈光學(xué)投射光強(qiáng)分布目標(biāo)角度-20-15-10-5051015200111111111-51

1

1

11

111

1

-1011

1

111

1

1

120111111111光學(xué)面罩單元投射原理圖光學(xué)面罩單元投射原理圖方案二-理想投射想法（1）理想投射想法（1）

-20-15-10-50510152010111111111-51111111110111111111方案二-理想投射想法（2）色片強(qiáng)度控制-各角度面積分配比例工藝

28.3120.712.654.254.2512.6520.7228.31

目標(biāo)-17.5-12.5-7.5-2.52.57.512.517.524.59-151111111116.74-10111111118.48-5111111110011111111色片圖形建議圖光學(xué)面罩單元投射原理圖僅0度與5度兩層面（層尺寸：10×2mm）光學(xué)面罩方案設(shè)計（方案二）光強(qiáng)度控制：邊長（面積）角度控制：給出必要的角度（以方便畫立體圖）色片設(shè)計1－光強(qiáng)度控制工藝

28.3120.72112.6494.2544.25412.64920.72128.31108

目標(biāo)-17.5-12.5-7.5-2.52.57.512.517.5

縱向邊長24.59-151111111182

橫向邊長1.251.251.251.251.251.251.251.25

16.74-101111111182

橫向邊長1.251.251.251.251.251.251.251.25

8.48-51111111182

橫向邊長1.251.251.251.251.251.251.251.2510

001111111182

橫向邊長1.251.251.251.251.251.251.251.2510

色片設(shè)計2－重要參數(shù)1－角度控制

-色片平面色度與出射角的關(guān)系重要參數(shù)1－（角度控制）

-色片平面色度與出射角的關(guān)系n31－色片棱面與色片表面所成的角度x–平行光經(jīng)此色片棱面偏離中心的角度色片設(shè)計傾斜面與色片平面夾角出射角與色片法線夾角n1:1弧度變角度弧度變角度n2:1.5870.77935844.653930.52368530.00493n3:10.73824842.29850.48869328.00002pi3.1415930.73060341.860470.48234627.63638PC：1.5870.61637935.315930.39270222.500180.61599935.294120.39241822.48390.60473434.64870.38404722.004280.55662531.892270.34910320.002110.506829.03750.3141618.000060.50670829.032260.31409717.996440.49409328.309450.30543317.50.42912124.586810.26184315.002490.36164320.720620.21816712.500070.347919.93320.20944312.000210.33406619.140590.20071411.500070.29210516.73640.17453410.000080.2207612.648620.13097.5000180.17724510.155380.104726.0000180.1626419.3186510.0959935.5000030.1480148.4805650.0872785.0006470.1038355.9493320.0610873.5000260.0890545.1024020.052363.0000080.0742484.2541120.0436332.5000010.0594323.4052210.0349122.0003190.0297281.7032710.0174531.0000020.0148680.8518690.0087280.50007重要參數(shù)2：二面角重要參數(shù)2：二面角1－水平棱面與色片表面所成的角度2－水平棱面偏轉(zhuǎn)角X—水平棱面偏轉(zhuǎn)后與垂直于表面的面交線與色片表面所成的角課程設(shè)計主要工作應(yīng)用Excel進(jìn)行光學(xué)設(shè)計計算各棱面的各個所需參數(shù)應(yīng)用Tracepro建立模型，并建立光源進(jìn)行模擬寫課程設(shè)計報告工藝

28.3120.72112.6494.2544.25412.64920.72128.31108

目標(biāo)-17.5-12.5-7.5-2.52.57.512.517.5

縱向邊長24.59-151111111182

橫向邊長1.251.251.251.251.251.251.251.25

角度0.53480860.3942370.24197210.081620.081620.24197210.3942370.5348086

角度30.64227522.58811513.863984.67648194.676481913.8639822.58811530.642275

COS0.86036620.92328990.97086730.99667090.99667090.97086730.92328990.8603662

中心高度0.46345320.3492690.21788650.07413540.07413540.21788650.3492690.4634532

16.74-101111111182

橫向邊長1.251.251.251.251.251.251.251.25

中心高度0.67333710.47285930.28053070.09297880.09297880.28053070.47285930.6733371

弧度0.51239540.37621290.23020180.07751910.07751910.23020180.37621290.5123954

角度29.35809521.55541113.1895914.44151814.441518113.18959121.55541129.358095

8.48-51111111182

橫向邊長1.251.251.251.251.251.251.251.2510

中心高度0.67333710.47285930.28053070.09297880.09297880.28053070.47285930.67333713.0394118

角度0.49870630.36530250.22312720.07506390.07506390.22312720.36530250.4987063

角度28.57376420.93029312.7842444.30084594.300845912.78424420.93029328.573764

001111111182

橫向邊長1.251.251.251.251.251.251.251.2510

中心高度0.67333710.47285930.28053070.09297880.09297880.28053070.47285930.6733371

角度0.49410270.36164970.22076670.07424630.07424630.22076670.36164970.4941027

0

角度28.3120.72112.6494.2544.25412.64920.72128.31328

x3.752.51.25001.252.53.755

y0,20,20,20,20,20,20,20,20,2

z0.6733371.1461961.4267271.5197061.5197061.4267271.1461960.6733370

工藝

28.3120.72112.6494.2544.25412.64920.72128.31108

目標(biāo)

-17.5-12.5-7.5-2.52.57.512.517.5

縱向邊長24.59-15

1111111182

橫向邊長

1.251.251.251.251.251.251.251.25

角度

0.53480860.3942370.24197210.081620.081620.24197210.3942370.5348086

角度

30.64227522.58811513.863984.67648194.676481913.8639822.58811530.642275

高00.74049330.52002060.30850990.10225220.10225220.30850990.52002060.7404933

COS

0.86036620.92328990.97086730.99667090.99667090.97086730.92328990.8603662

x53.752.51.25001.252.53.755

0y22.199472922222222

y1

00000000

0.9152493z20.91524931.65574262.17576322.48427312.58652532.58652532.48427312.17576321.65574260.9152493

z100.7404931.2605141.5690241.6712761.6712761.5690241.2605140.7404930

16.74-10

1111111182

橫向邊長

1.251.251.251.251.251.251.251.25

弧度

0.51239540.37621290.23020180.07751910.07751910.23020180.37621290.5123954

角度

29.35809521.55541113.1895914.44151814.441518113.18959121.55541129.358095

高00.70313480.49378510.29294530.09709350.097