統(tǒng)一眩光值UGR

1、附錄A 統(tǒng)一眩光值（UGR）A.0.1室內(nèi)照明場所的統(tǒng)一眩光值（UGR計算應(yīng)符合下列規(guī)定：1當(dāng)燈具發(fā)光部分面積為 0.005m2 S 1.5m2時，統(tǒng)一眩光值（UGR）應(yīng)按下列公式進行計 算：UGR =8lg0.2 5%Lb(A.0. 1-1)二LAp(A.0.1-2)AP0 一 2（A.0.1-3）r式中：L 背景亮度（cd/m2）;co每個燈具發(fā)光部分對觀察者眼睛所形成的立體角（圖A.0.1-1a） （sr）;P 每個單獨燈具的位置指數(shù)；2、La燈具在觀察者眼睛萬向的鳧度（圖A.0.1-1b） （cd/m ）；屋一一燈具發(fā)光中心與觀察者眼睛連線方向的燈具發(fā)光強度（ cd）;Ap 燈具發(fā)光部

2、分在觀察者眼睛方向的表觀面積（m2）；r 燈具發(fā)光部分中心到觀察者眼睛之間的距離（ m）。（a）燈具與觀察者關(guān)系示意圖（b）燈具發(fā)光中心與觀察者眼睛連線方向示意圖圖A.0.1-1統(tǒng)一眩光值計算參數(shù)示意圖1一燈具發(fā)光部分；2觀察者眼睛方向；3一燈具發(fā)光中心與觀察者眼睛連線；4觀察者；5一燈具發(fā)光表面法線2對于發(fā)光部分面積小于0.005m2的筒燈等光源，統(tǒng)一眩光值應(yīng)按下列公式進行計算：025- 220M.r2 P2(A.0. 1-4)LbEi(A.0.1-5)UGR =8lg “ Lb1汽=L A cosot（A.0.1-6）式中：片 背景亮度（cd/m 2）;L燈具發(fā)光中心與觀察者眼睛連線方向的

3、燈具發(fā)光強度（ cd）；r每個燈具發(fā)光部分與觀察者眼睛之間的距離（ m）；P 每個單獨燈具的位置指數(shù)，位置指數(shù)應(yīng)按圖A.0.1-2生成的H/R和T/R坐標(biāo)系及由表A.0.1確定；Ei 觀察者眼睛方向的間接照度（lx）;A cos a燈具在觀察者眼睛方向的投影面積（ m2）；a燈具表面法線與其中心和觀察者眼睛連線所夾的角度（）。圖A.0.1-2以觀察者位置為原點的位置指數(shù)坐標(biāo)系統(tǒng)（ R, T, H）1一燈具中心；2視線；3水平面；4觀測者表A.0.1位置指數(shù)表T/RH/R0.000.100.200.300.400.500.600.700.800.901.001.101.201.301.401.5

4、01.601.701.801.900.001.001.261.531.902.352.863.504.205.006.007.008.109.2510.3511.7013.1514.7016.20一-0.101.051.221.451.802.202.753.404.104.805.806.808.009.1010.3011.6013.0014.6016.10一-0.201.121.301.501.802.202.663.183.884.605.506.507.608.759.8511.2012.7014.0015.70一-0.301.221.381.601.872.252.703.253.9

5、04.605.456.457.408.409.5010.8512.1013.7015.00-0.401.321.471.701.962.352.803.303.904.605.406.407.308.309.4010.6011.9013.2014.6016.00-0.501.431.601.822.102.482.913.403.984.705.506.407.308.309.4010.5011.7513.0014.4015.70-0.601.551.721.982.302.653.103.604.104.805.506.407.358.409.4010.5011.7013.0014.1015

6、.40-0.701.701.882.122.482.873.303.784.304.885.606.507.408.509.5010.5011.7012.8514.0015.20-0.801.822.002.322.703.083.503.924.505.105.756.607.508.609.5010.6011.7512.8014.0015.10-0.901.952.202.542.903.303.704.204.755.306.006.757.708.709.6510.7511.8012.9014.0015.0016.001.002.112.402.753.103.503.914.405.

7、005.606.207.007.908.809.7510.8011.9012.9514.0015.0015.001.102.302.552.923.303.724.204.705.255.806.557.208.159.009.9010.9512.0013.0014.0015.0016.001.202.402.753.123.503.904.354.855.506.056.707.508.309.2010.0011.0212.1013.1014.0015.0016.001.302.552.903.303.704.204.655.205.706.307.007.708.559.3510.2011

8、.2012.2513.2014.0015.0016.001.402.703.103.503.904.354.855.355.856.507.258.008.709.5010.4011.4012.4013.2514.0515.0016.001.502.853.153.654.104.555.005.506.206.807.508.208.859.7010.5511.5012.5013.3014.0515.0216.001.602.953.403.804.254.755.205.756.307.007.658.409.009.8010.8011.7512.6013.4014.2015.1015.0

9、01.703.103.554.004.504.905.405.956.507.207.808.509.2010.0010.8511.8512.7513.4514.2015.1016.001.803.253.704.204.655.105.606.106.757.408.008.659.3510.1011.0011.9012.8013.5014.2015.1016.001.903.433.864.304.755.205.706.306.907.508.178.809.5010.2011.0012.0012.8213.5514.2015.1016.002.003.504.004.504.905.3

10、55.806.407.107.708.308.909.6010.4011.1012.0012.8513.6014.3015.1016.002.103.604.174.655.055.506.006.607.207.828.459.009.7510.5011.2012.1012.9013.7014.3515.1016.002.203.754.254.725.205.606.106.707.358.008.559.159.8510.6011.3012.1012.9013.7014.4015.1516.002.303.854.354.805.255.706.226.807.408.108.659.3

11、09.9010.7011.4012.2012.9513.7014.4015.2016.002.403.954.404.905.355.806.306.907.508.208.809.4010.0010.8011.5012.2513.0013.7514.4515.2016.002.504.004.504.955.405.856.40.6.957.558.258.859.5010.0510.8511.5512.3013.0013.8014.5015.2515.002.604.074.555.055.475.956.457.007.658.358.959.5510.1010.9011.6012.32

12、13.0013.8014.5015.2516.002.704.104.605.105.536.006.507.057.708.409.009.6010.1610.9211.6312.3513.0013.8014.5015.2516.002.804.154.625.155.566.056.557.087.738.459.059.6510.2010.9511.6512.3513.0013.8014.5015.2515.002.904.204.655.175.606.076.577.127.758.509.109.7010.2310.9511.6512.3513.0013.8014.5015.2516.003.004.224.675.205.656.126.607.157.808.559.129.7010.2310.9511.6512.3513.0013.8014.5015.2516.00A.0.2