[EL] 問﹕球場 Football Field / Stadium Lighting Design 有啲乜要注意？

答﹕

FIFA (國際足盟大賽)，UEFA(歐洲冠軍聯賽) 標準

Class I (Amateur 業餘) 

- 200 lux, 0.5 uniformity

Class II (Semi Professional)

- 500 lux, 0.6 uniformity

Class III (Professional Stadium)

- 750 lux, 0.7 uniformity

不過上述都唔足以做TV broadcasting, 大概要滿足以下條件先做到

- 1000-1500 lux, uiformity U1 0.6, U2 0.8, Colour Rendering Index 70 以上(0-100Ra)

- Floodlight Luminaire Mounting: 

原則﹕唔好比影擋到，大概25-30m

兩側﹕光到達球場中心嗰點要响25°同45°之間

Goal line: 

45°同60°之間

(鳴謝﹕諾克Sir; Source: https://www.ledsuniverse.com/football-field-lighting-standards-and-regulations/; 

UEFA Stadium Lighting Guide 2016 https://www.uefa.com/MultimediaFiles/Download/uefaorg/General/02/36/26/72/2362672_DOWNLOAD.pdf)