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Wing luminaire – soft light with air supply and extract
9
The design brief
Room lighting, air supply and
air extract as well as additional
technical elements would have
to be integrated within a low
installation depth
• These are custom made
products with prices and
availability confirmed upon
request.
The solution concept
Extremely shallow, semirecessed
housings with two
perforated wing sections, which
give a soft curved effect within
the ceiling. Along the edges are
the air supply rails. The extract
air passes through the louvre
and the canopy.
Architect
Sir Norman Foster and Partners
Light planner
Schad + Hoelzel Engineering
Company Ltd.
H
90
L
100
w
11
Luminaire : 5LD 570 71 KU43 with 1 x 36W and HFG ( Lumen output : 1 x 3200 lm )
Light output in cd / klm
Tested to DIN 5032
C0 - 1 80 C90 - 27 0
Total light output ratio (LOR) = 62%
Number of luminaires in room
Reflection factors :70/50/20 MF = 0.8
HFG
En [lx] 100 300 500 750
Lh [m] 2.5 3.0 2.5 3.0 2.5 3.0 2.5 3.0
Floor area A [m 2 ]
20 1. 5 1. 7 4.5 5.0 7. 5 8.3 11 12
30 2.1 2.3 6.3 6.9 11 12 16 17
40 2.7 2.9 8.1 8.8 13 15 20 22
50 3. 3 3. 5 9.8 11 16 18 25 26
75 4.7 5.0 14 15 24 25 35 37
100 6.2 6.4 19 19 31 32 47 48
200 12 12 36 37 60 62 89 92
500 29 30 88 89 14 7 14 8 22 1 22 2
Lh = Luminaire mounting height
Utilisation
Luminaire utilisation factors
ρCeiling
80 80 70 70 50 50 30 0
ρWall
50 30 50 30 50 30 30 0
ρFloor
30 10 20 20 10 10 10 0
Room Index k
0.60 34 28 33 28 31 27 27 24
0.80 42 35 40 36 38 35 34 31
1.00 50 42 47 43 45 42 41 38
1.25 54 46 51 47 48 45 45 42
1.50 58 50 54 51 51 49 48 45
2.00 64 55 59 56 55 53 53 50
3.00 68 58 63 60 58 56 56 53
5.00 73 61 66 64 61 59 58 56
Power consumption
Values in Watts
Lamps
HFG
1 x 36W 34
Light distribution to DIN 5040
ϕ u 1. 00
ϕ su 0.65
ϕ so 0.00
Conversion factor F1 for 5LD 570 .-..
HFG
Conversion factor F for 5LD 570 .-..
HFG
Classification
DIN A 5 0
CIE N1 : 71 N 2: 98 N3: 10 0 N4: 10 0 N5: 62
Further photometric data can be found in our lighting design program SiLICHT