Transcript Nanoprism Presentation

Copyright SLP UK Ltd 2013
Copyright SLP UK Ltd 2013
• LED sources are a unique
source of glare.
• The Diagram displays the
most common fluorescent
lighting source.
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• This diagram displays a
typical LED light source.
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18 W T8
14 W T5
Luminous area m2
0.046
0.027
0.00004
Lumen output
1450
1200
100
10,000
15,000
8,300,000
Surface Brightness
Cd/m2
Single LED Chip
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T8 P12 Type prismatic
Prism size Circa 5mm
Easily extruded
15,000 prisms on
A 2 ft. panel
T5 P42 Type Microprism
Prism size less than 2mm
Practical limit for
extrusion
750,000 prisms on a
2 ft. panel
LED Nanoprism
Prism size 0.5 mm
Injection moulded
1,500,000 prisms on
a 2 ft. panel
Copyright SLP UK Ltd 2013
Copyright SLP UK Ltd 2013
• Unique 2 surface design
• Nanoprism outer surface
is a custom design
moulded prism
• The rear surface is a
special texture which
acts in conjunction with
the prisms
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• High Efficiency
• Rear surface texture minimises reflection
• Rear surface texture maximises collection of “off axis” light rays
• Injection moulded sharp minimum radius front Nanoprism maximise
transmission
• Injection moulded flat faces to Nanoprism ensure minimum reflection
• Precise relation between rear texture and front prisms minimises losses
measured under practical conditions as the difference in Lumen output between a practical luminaire
without the panel and the same luminaire with the panel added
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Precise Photometric control
Typical polar curve 600 x 600 Recessed
Module 2200 lumen output
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Elevation
angle
70% Opal
cd/kLm
Nano
cd/kLm
Nano
% lower
60
97.5
95.0
2.5
65
82.1
71.0
13.6
70
65.8
50.8
22.8
75
49.1
34.1
30.6
80
33.2
20.5
38.2
85
16.3
8.6
46.9
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Nanoprism limiting luminance
4500
Luminance cd/m2
4000
3500
Series1
3000
2500
2000
10000
11000
12000
13000
14000
15000
Source
16000
17000
18000
19000
20000
Lumens/m2
From the graph above we can see that the limit for meeting 3000cd/m2 is
14200 Lumens per m2 input from the source.
For a luminous area of 585 x585 mm this equates to 4800 Lumens input.
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Nanoprism
Practical application
To obscure source D ≥ S. In practice D minimum should not be less than 25 mm
Provided these guidelines are used the resultant photometry will be as published
and the LED point sources will not be individually visible
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Illuminance
[lx]
1000
750
500
300
200
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General
Calculation algorithm used
Height of evaluation surface
Height of luminaire plane
Maintenance factor
Light flux factor (see maintenance plan)
Total luminous flux of all lamps
Total power
Total power per area (144.00 m²)
Evaluation area 1
Em
Emin
Emin/ Eav (Uo)
UGR (7.9H 7.9H)
Position
Average indirect fraction
0.75 m
2.73 m
0.85
1.00
110000 lm
1000.0 W
6.94 W/m² (1.33 W/m²/100lx)
Reference plane 1.1
Horizontal
522 lx
451 lx
0.86
<=19.3
0.75 m
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Illuminance
[lx]
1000
750
500
300
200
Copyright SLP UK Ltd 2013
General
Calculation algorithm used
Height of evaluation surface
Height of luminaire plane
Maintenance factor
Light flux factor (see maintenance plan)
Total luminous flux of all lamps
Total power
Total power per area (144.00 m²)
Evaluation area 1
Em
Emin
Emin/ Eav (Uo)
UGR (2.5H 2.5H)
Position
Average indirect fraction
0.75 m
6.00 m
0.80
1.00
125000 lm
1425.0 W
9.90 W/m² (1.83 W/m²/100lx)
Reference plane 1.1
Horizontal
541 lx
385 lx
0.71
<=18.3
0.75 m
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• High efficiency means less luminaires needed
• High efficiency means lower power LEDs for the same effect
• Reduces CO2 emissions
• Harnesses the long life of LED technology to reduce maintenance
and environmental impact
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• 620 x 620 mm Flat sheet.
• Can be cut to fit surface and recessed modules for
retail and commercial luminaires.
• Other sizes of flat sheet available.
• Nanoprism can be custom moulded onto new
diffusers to control any LED Product.
•
•
•
•
Moulded bulkhead diffusers
Linear modules
Decorative bulkheads
Floodlights
Copyright SLP UK Ltd 2013
Copyright SLP UK Ltd 2013