Function

Illuminance(lx)

Average of Illuminance

Anti Glare GR

Eh

Evmai

Evaux

Uh

Uvmin

Uvaux

Ra

Tcp(K)

U1

U2

U1

U2

U1

U2

Ⅰ

Training and recreational activities

300

—

—

—

0.3

—

—

—

—

≥65

—

≤35

Ⅱ

Amateur competition, professional training

500

—

—

0.4

0.6

—

—

—

—

≥65

≥4000

≤30

Ⅲ

Professional competition

750

—

—

0.5

0.7

—

—

—

—

≥65

≥4000

≤30

Ⅳ

TV Broadcast national and international competitions

—

1000

750

0.5

0.7

0.4

0.6

0.3

0.5

≥80

≥4000

≤30

Ⅴ

TV Broadcast major international competitions

—

1400

1000

0.6

0.8

0.5

0.7

0.3

0.5

≥80

≥4000

≤30

Ⅵ

HDTV Broadcast major international competitions

—

2000

1400

0.7

0.8

0.6

0.7

0.4

0.6

≥90

≥5500

≤30

—

TV Emergency

—

750

—

0.5

0.7

0.3

0.6

—

—

≥80

≥4000

≤30

Exercise type

Eh(lx)

Evmai(lx)

Evaux(lx)

Horizontal illumination uniformity

Vertical illumination uniformity

Tk(K)

Ra

U1

U2

U1

U2

Amateur level

Physical Training

150

—

—

0.4

0.6

—

—

4000

20

Non-competition, entertainment

300

—

—

0.4

0.6

—

—

4000

65

Domestic competition

500

—

—

0.5

0.7

—

—

4000

65

Professional level

Physical Training

300

—

—

0.4

0.6

—

—

4000

65

Domestic competition

750

—

—

0.5

0.7

—

—

4000

65

TV Broadcast domestic games

—

750

500

0.5

0.7

0.3

0.5

4000

65

TV International competitions broadcast

—

1000

750

0.6

0.7

0.4

0.6

4000

65，better 80

High-definition HDTV broadcast

—

2000

1500

0.7

0.8

0.6

0.7

4000

80

TV Emergency

—

750

—

0.5

0.7

0.3

0.5

4000

65，better 80