LED路灯二次光学设计

LED路灯

二次光学设计ByJean201009内容提要LED信号灯二次光学设计LED路灯二次光学设计LED信号灯

二次光学设计

ByJean2006交展会－北京LED信号灯的基本构成LED交通信号灯2004年左右逐渐占领市场，原因：LED亮度提高，价格下降LED的诸多优点存在的问题：（众多厂家如雨后春笋）重生产，不达标光通量浪费严重（成本过高）在LED信号灯很少有公司做光学设计！LED信号灯标准－－光学标准中华人民共和国LED交通信号灯国标GB14887-2003美国标准欧洲标准光学相关主要要求：光强分布色度LED信号灯二次光学设计复旦大学上海澳星无锡安邦我们的方案－光学设计2006二次光学设计内容提要整体设计色片设计色片小样品结果分析与LED颗数确定透镜设计整体设计色片设计主体思想：以根据国标建立起来的光形为依据设计色片，实现光在空间里方向和数量的合理分配。特点：分配明确－有多少光分配到哪个角度实现方法：强度分配：控制各分发散面在色片面上的投影比例，从而达到对平行光在空间的光强分配。角度分配：控制投射面与色片的角度，实现光方向的控制。具体说是沿色片的上下和左右轴的偏转角度LED信号灯二次光学设计

-色片设计过程根据信号灯标准设计投射方案设计图形（角度、尺寸）方案调整利用Autocad给出立体图建议图画立体图制作模具GB14887-2003目标角度-20-15-10-50510152003558510085553-3

758075

-5

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820222光学面罩单元投射原理图色片投射图形方案（两种）色片构型方法一：塔形方案一：塔形方案建议图方案二—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）色片强度控制-各角度面积分配比例工艺

28.3120.712.654.254.2512.6520.7228.31

目标-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色片图形建议图色片方案设计（以方案二为例）

设计中的重要参数计算光强度控制：边长（面积）角度控制：给出必要的角度（以方便画立体图）工艺

28.3120.72112.6494.2544.25412.64920.72128.3110.2719

目标-17.5-12.5-7.5-2.52.57.512.517.5

纵向边长31.89-202.62.633232.62.621.40.8005486

边长0.5214670.73075330.7734380.79694760.7969480.7734380.7307530.5214675.645212

24.59-153333333324

边长

0.73863190.77669390.79733670.7973370.77669390.738632

4.625325

16.74-101066.518186.5610811.4282915

边长1.26802470.76081480.8242162.28244442.2824440.8242160.7608151.26802510.271

0.824682

8.48-511162031312016111562.7507837

边长0.72423721.05343591.31679492.04103212.0410321.31679491.0534360.72423710.271

0.972197

00112035003520111322.3275862

边长0.85591671.55621212.7233712002.72337121.5562120.85591710.271

961.69279

510.49色片设计1－光强度控制色片设计2－重要参数1－角度控制

-色片平面色度与出射角的关系重要参数1－（角度控制）

-色片平面色度与出射角的关系n31－色片棱面与色片表面所成的角度x–平行光经此色片棱面偏离中心的角度色片设计倾斜面与色片平面夹角出射角与色片法线夹角n1:1弧度变角度弧度变角度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重要参数2：二面角重要参数2：二面角1－水平棱面与色片表面所成的角度2－水平棱面偏转角X—水平棱面偏转后与垂直于表面的面交线与色片表面所成的角工艺

28.3120.72112.6494.2544.25412.64920.72128.315.135510.2719

目标-17.5-12.5-7.5-2.52.57.512.517.5

纵向边长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

边长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

边长

0.73863190.77669390.79733670.7973370.77669390.738632

4.625325

16.74-101066.518186.5610

811.4282915

边长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

边长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

边长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色片设计光强度控制强度比等于长度比角度控制角度二面角1－水平棱面与色片表面所成角2－水平棱面偏转角X—水平棱面偏转后与垂直于表面的面交线与色片表面所成的角1－色片棱面与色片表面所成的角x–平行光经此色片棱面偏离中心的角色片单元图形模拟结果模拟相对值具体结果VH-30-20-10-5051020300标准值1%3%55%85%100%85%55%3%1%Copice_131%21%61%88%100%86%63%20%1%-3标准值

75%80%75%

Copice_13

72%88%73%

-5标准值

35%

60%

35%

Copice_13

36%

64%

36%

-10标准值

8%

30%

8%

Copice_13

13%

36%

12%

-20标准值2%

2%

2%Copice_130%

4%

0%绿单元发散角红单元发散角红单元发散角黄单元发散角国标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%色片小样结果与分析光学分配角度符合设计较好。光强分配符合设计较好。各角度的光强值与设计基本一致。存在的问题：光形较离散-有些光斑不完整存在问题的原因：色片是小单元，大单元中可以改善光的发散角为3.7度，采用5度会改善结论：色片小样与设计一致LED数目估算颜色类别49颗LED单元中心光强LED光通量中心光强mcd发散角达到国标所需LED数目400绿为准红1为准红2为准黄为准建议数目绿1466.72.24759327494959.29555185

2

2.14

51

51

62.065854

红12451.66445921.7806680

139

21550.98254729.4126112

126.5118

黄21701

115110132.8124115139透镜设计-透镜参数取值程序确定颗数透镜尺寸物距U像距V焦距f曲率r

LED发散角度出射光发散角透镜物像公式：单面透镜曲率公式：透镜相关参数取值LED颗数总长边数边距透镜边长单透镜半径LED发散角物距透射光发散像距焦距曲率(PC)曲率(PMMA)透镜厚度(PMMA)透镜厚度(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路灯二次光学设计ByJean路灯光学设计LED路灯二次光学设计过程整体设计色片设计透镜设计整体设计

通过透镜获得5度发散光色片设计主体思想：根据路灯光学要求建立起来的光形为依据设计色片，实现光在空间里方向和数量的合理分配。特点：分配明确－有多少光分配到哪个角度实现方法：强度分配：控制各分发散面在色片面上的投影比例，从而达到对平行光在空间的光强分配。角度分配：控制投射面与色片的角度，实现光方向的控制。具体说是沿色片的上下和左右轴的偏转角度LED路灯二次光学设计

-色片设计过程根据路灯标准设计投射方案设计图形（角度、尺寸）计算重要参数画立体图模拟方案调整做模具路灯光学投射光强分布目标角度-20-15-10-5051015200111111111-51

1

1

11

111

1

-1011

1

111

1

1

120111111111光学面罩单元投射原理图光学面罩单元投射原理图方案二-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）色片强度控制-各角度面积分配比例工艺

28.3120.712.654.254.2512.6520.7228.31

目标-17.5-12.5-7.5-2.52.57.512.517.524.59-151111111116.74-10111111118.48-5111111110011111111色片图形建议图光学面罩单元投射原理图仅0度与5度两层面（层尺寸：10×2mm）光学面罩方案设计（方案二）光强度控制：边长（面积）角度控制：给出必要的角度（以方便画立体图）色片设计1－光强度控制工艺

28.3120.72112.6494.2544.25412.64920.72128.31108

目标-17.5-12.5-7.5-2.52.57.512.517.5

纵向边长24.59-151111111182

横向边长1.251.251.251.251.251.251.251.25

16.74-101111111182

横向边长1.251.251.251.251.251.251.251.25

8.48-51111111182

横向边长1.251.251.251.251.251.251.251.2510

001111111182

横向边长1.251.251.251.251.251.251.251.2510

色片设计2－重要参数1－角度控制

-色片平面色度与出射角的关系重要参数1－（角度控制）

-色片平面色度与出射角的关系n31－色片棱面与色片表面所成的角度x–平行光经此色片棱面偏离中心的角度色片设计倾斜面与色片平面夹角出射角与色片法线夹角n1:1弧度变角度弧度变角度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重要参数2：二面角重要参数2：二面角1－水平棱面与色片表面所成的角度2－水平棱面偏转角X—水平棱面偏转后与垂直于表面的面交线与色片表面所成的角课程设计主要工作应用Excel进行光学设计计算各棱面的各个所需参数应用Tracepro建立模型，并建立光源进行模拟写课程设计报告工艺

28.3120.72112.6494.2544.25412.64920.72128.31108

目标-17.5-12.5-7.5-2.52.57.512.517.5

纵向边长24.59-151111111182

横向边长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

横向边长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

横向边长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

横向边长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

工艺

28.3120.72112.6494.2544.25412.64920.72128.31108

目标

-17.5-12.5-7.5-2.52.57.512.517.5

纵向边长24.59-15

1111111182

横向边长

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

横向边长

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