1, the lighting layout of the competition hall:
The light horses and light fixtures are arranged over the venue in the form of light strips on the roads of the horse, through different lighting patterns to meet the lighting requirements of various sports competitions.
2, illumination:
The grading value of China's illuminance series is stipulated in the CIE No. 29 document. The average illuminance difference between all levels is 1.5 times. The selection of illuminance standards must take into account the requirements of the same visual operations, and the specific architectural features of the stadium must be considered. The establishment of the competition project and the economic affordability make the above points achieve the best combination. Its horizontal illuminance reaches 15001x and vertical illuminance reaches 10001x, which satisfies audience's requirements for watching games and the requirements for live broadcasting of color television. The illuminance of the stand lighting is determined according to the requirements for the site to broadcast TV. Generally, the illuminance of the stand lighting is 25% of the horizontal illuminance at the site edge.
3, illumination uniformity:
The national standard specifies the degree of illumination uniformity. In the main camera direction in the sports field, the ratio between the minimum and maximum values ​​of vertical illuminance should not be less than 0.4, and the ratio between the average vertical illuminance and the average illuminance should not be less than 0.25; the ratio between the minimum and maximum values ​​of the horizontal illuminance in sports venues should not be less than 0.5 The vertical illumination of the auditorium should not be less than 0.25.
4, glare control:
The luminaire with the minimum shading angle is selected to strictly control its pitch angle to effectively control the glare. According to the national standard, the glare index GR of indoor gymnasium is less than 40, and the glare index GR of outdoor stadium is less than or equal to 500.
5, the site of the color rendering requirements of the light source:
According to China's sports lighting standards and relevant foreign regulations, the color rendering coefficients of light sources are as follows: In domestic and international competitions with television broadcasting, the color rendering index is Ra ≥ 80, and the color rendering index of high-definition television broadcasting is Ra ≥ 90.
6. Performance requirements of light sources and lamps:
(1) Light source: According to the basic principles of economy and practicality, the competitive light source recommends the use of imported or joint venture famous brands of 1000W metal halide bulbs with a color rendering index of Ra≥90.
(2) Luminaires: The competition lamps and lanterns adopt imported or joint venture brand-name lamps and lanterns that are matched with the light source. The specific requirements are as follows:
A, high-pressure cast aluminum lamp housing
B. Reflector made of imported high-purity anode or coated aluminum plate
C, can easily replace the bulb
D, protection level can reach IP65
E. There are two or more light distribution curves to choose from
The main technical parameters:
Horizontal illuminance (ground floor): 1500Lx
Vertical illuminance (main camera direction): 1000Lx
Horizontal illuminance uniformity: U1 = Emin/Emax> 0.5 U2 = Emin/Eave> 0. 6
Uniformity of vertical illuminance: U1 = Emin/Emax> 0.4 U2 = Emin/Eave> 0.5
Light source color temperature: 6000K>Tk>4000K ,
Color rendering index: Ra>85
Auditorium horizontal illumination: 375Lx
Auditorium vertical illumination: 250Lx
VIP seat level illumination: 750Lx
VIP seat vertical illumination: 500Lx
Glare Limit Quality Rating: Glare Index
Light source life: >6000 hours
When drinking coffee, we always add milk or other favorite condiments. At this time, we need a Coffee Spoon to help us. Gently stir to blend the condiments and coffee. If sugar is added, we can also use the coffee spoon to stir to melt it quickly. In our designer's hands, a coffee spoon is changeable, it can be shaped like a flower, a dog or even an elephant, and the whole coffee spoon looks like a guitar, etc. It is exquisite, gorgeous and very interesting. Imagine a cup of coffee on a warm afternoon, holding such a delicate spoon in hand, and feeling better all day long!
Coffee Spoon
Coffee Spoon,Coffee Scoop,Metal Coffee Spoon,Gold Coffee Scoop
Jieyang Huiyi Hardware Products Co., Ltd. , https://www.chinagdhuiyi.com