Cooper Lighting Vision Flood User Manual

VISION FLOOD ARCHITECTURAL FLOOD LUMINAIRE
TM
VISION FLOOD
ARCHITECTURAL FLOOD LUMINAIRE
- Facade
- Sign
FLUENT FORM
VISION Flood’s cylindrical form blends effortlessly to architectural and landscape environments.
Available in wattages up to 1000 watt Metal Halide and in two (2) housing sizes, VISION Flood offers
properly scaled solutions for any floodlighting application.
EXCEPTIONAL DESIGN
Designed for sustaining quality, VISION Flood’s precisely engineered die-cast aluminum
housing and door incorporate IP65 rated gasketing strategies, while the heavy duty knuckle provides
infinite aiming flexibility and lock-down strength tested to withstand 3G of vibration.
OPTICAL FLEXIBILITY
Designed to offer community friendly optical control, VISION Flood optics focus lamp output
into defined rectangular patterns while controlling direct visibility of the lamp, a root cause of glare
and light pollution. Six (6) available optical systems provide maximum design flexibility, while a
broad array of light control accessories provide supplemental cutoff control.
FLOODLIGHTING FUNDAMENTALS
E D
2
COS (x)
X=45°
45°
I=707 cd
D
=
1
0
'
5 fc (10')
2
COS (45°)
=
707 candela
E=fc
I=
E D
2
COS (x)
X=30°
30°
I=
577 cd
5 fc (10')
2
COS (30°)
D
=
1
0
'
=
577 candela
E=5 fc
I=
E D
2
COS (x)
X=30°
30°
I=2,310 cd
5 fc (20')
2
COS (30°)
D
=
2
0
'
=
2,310 candela
E=5 fc
I=
E D
2
COS (x)
X=30°
I=
57
7 cd
5 fc (10')
2
COS (30°)
D
=
1
0
'
=
577 candela
E=5 fc
I=
30°
- Inverse Square Cosine Law
Footcandle levels are ultimately dependent upon the projected distance, aiming angle, and luminous intensity of a lamp/reflector combination. A cursory understanding of the equation which relates these variables provides insights to proper design technique and distribution selection.
INVERSE SQUARE COSINE LAW
2
E=I cos (x)/D Illuminance (Footcandles, fc) = Luminous Intensity (Candelas, Cd) * cos (incident angle X) / Distance
Holding other variables constant, as the projected distance increases from the luminaire to the surface being illuminated, a greater amount of luminous intensity (I, Candela) is required to sustain an equal illuminance (E, Footcandle) level.
-or-
2
Holding incident angle X constant at 30˚ while increasing the projected distance D from 10' to 20' requires an increase in candela from 577 to 2310 respectively to sustain an equal 5 footcandles (fc) of illumination at the target point.
The incident angle as measured from a luminaire’s directed intensity to the target surface normal also plays a significant role in determining illuminance values. Holding other variables constant as the incident angle from the target surface to the projected aiming line increases, so does the amount of luminous intensity (I, Candela) required to sustain an equal illuminance value.
Holding projected distance D constant at 10' while increasing incident angle X from 30˚ to 45˚ requires an increase in candela from 577 to 707 respectively to sustain an equal 5 footcandles (fc) of illumination at the target point.
3
VISION FLOOD Architectural Flood Luminaire
NEMA Beam Field Angle Description + Classification Range Setback
1 10-18° Narrowest Beam, Long Setback
2 18-29° Narrow Beam, Long Setback
3 29-46° Narrow Beam, Long Setback
4 46-70° Medium Beam, Medium Setback
5 70-100° Medium Beam, Medium Setback
6 100-130° Wide Beam, Shorter Setback
7 130°-Greater Widest Beam, Short Setback
FLOODLIGHTING TERMINOLOGY
90°
60°
80°
70°
50°
40°
30°
45°
0°
Beam Angle
1
0
,
0
0
0
c
d
1
5
,
0
0
0
c
d
2
0
,
0
0
0
c
d
2
5
,
0
0
0
c
d
3
0
,
0
0
0
c
d
3
5
,
0
0
0
c
d
4
0
,
0
0
0
c
d
4
5
,
0
0
0
c
d
5
0
,
0
0
0
c
d
5
,
0
0
0
c
d
Field Angle
90°
60°
80°
70°
50°
40°
30°
45°
20°
10°
20°
10°
- Floodlighting Terminology
- NEMA [IES] Classifications
FLOODLIGHTING TERMINOLOGY
Ever wonder how NEMA (H x V) Classifications are derived, or how they relate to the performance and design application of a floodlighting distribution? How about beam and field angles, and maximum candela values?
- Maximum Candela is defined as the maximum candela value emitted from the luminaire in any given direction.
- Beam angle is defined as the included angle between points of 50%
of Maximum Candela.
- Field Angle is defined as the included angle between points of 10%
of Maximum Candela.
As an example, a distribution with a 50,000 Cd maximum candela value as shown in the intensity distribution graph to the right (FIG. 1) would have a Beam Angle defined by the included angle of 25,000 Cd values, and a Field Angle defined by the included angle of 5,000 Cd values.
FIG. 1
EXAMPLE
Max Candela = 50,000 Cd Candela Value defining Beam Angle = (50% * 50,000 Cd) = 25,000 Cd Candela Value defining Field Angle = (10% * 50,000 Cd) = 5,000 Cd Beam Angle = 90° Field Angle = 120°
NEMA [IES] CLASSIFICATIONS
NEMA classifications are extrapolated from the table below and are determined by a distribution’s Field Angle. This relative classification is used to describe the general shape and application of a distribution. NEMA classifications are used to classify both the horizontal and vertical components of a floodlight distribution.
The example distribution in FIG. 1 above would have a NEMA Classification of 6 as the 120° Field Angle falls between the 100-130° range.
VISION FLOOD Architectural Flood Luminaire
4
Without Internal Louvers
With Internal Louvers
VISION Flood offers a host of beam control options that limit
Without External Louvers
With External Louvers
unwanted stray light and control direct viewing
SPILL + GLARE CONTROL
- Internal Louvers
- External Grid Louvers
- Top Visor
- 4 Sided Shield
- Barn Doors
- Rectangular Beam Patterns
of the lamp source.
Limiting the amount of stray light which falls beyond the boundaries of the intended target is not only good design practice, but is increasingly a mandate of local and state adopted lighting ordinances. The VISION Flood series offers a family of beam control options to limit unwanted stray light and control direct viewing of the lamp, a common source of discomfort and disability glare.
INTERNAL LOUVERS
Standard on Narrow Spot and Narrow Flood distributions, integral ring louver controls lamp glare while eliminating spill light outside the main beam.
EXTERNAL GRID LOUVERS
Designed to control lamp glare and spill light while maintaining beam efficiency. Useful when aiming direction or intended target lies in close proximity to pedestrian and/or motor vehicle activity. Mounts to accessory channel in doorframe. Compatible with all distributions. Available on VFM only.
5
VISION FLOOD Architectural Flood Luminaire
Without Top Visor
TOP VISOR
With Top Visor
Without 4-Sided Shield
With 4-Sided Shield
Without Barn Doors
With Barn Doors
Typical Round Beam Patterns
Rectangular Beam Patterns
Controls excess spill and glare on top portion of distribution. Especially useful in uplighting applications to limit light travel above an intended wall surface or sign. Mounts to accessory channel in doorframe. Compatible with all distributions.
4-SIDED SHIELD
Controls lamp glare and spill light in all directions. Useful when aiming direction or intended target lies in close proximity to pedestrian and/or motor vehicle activity. Mounts to accessory channel in doorframe. Compatible with all distributions. Available on VFM only.
BARN DOORS
Four (4) independently mounted and adjustable doors control cutoff angles in all directions, allowing custom distribution control. Compatible with all distributions.
RECTANGULAR BEAM PATTERNS
Structures, signs, and other various objects which dominate our visual landscape are largely defined by straight lines and planar surfaces. Lighting these objects with rectangular distributions eliminates excess spill light while maintaining optimal uniformity.
Rectangular beams produce more uniform coverage, resulting in reduced fixture counts and less stray light spilling beyond the intended target.
Typical round patterns create shadows in corners, requiring closer fixture spacings. Uniformity is compromised.
6
VISION FLOOD Architectural Flood Luminaire
Area Target Surface Average Target Description Finish Illuminance
Bright Surroundings Light Surfaces 5 fc
Bright Surroundings Medium Light Surfaces 7 fc
Bright Surroundings Dark Surfaces 10 fc
Dark Surroundings Light Surfaces 2 fc
Dark Surroundings Medium Light Surfaces 3 fc
Dark Surroundings Medium Dark Surfaces 4 fc
Dark Surroundings Dark Surfaces 5 fc
NEMA Beam Field Angle Maximum Lamp Lamp Beam IES (50% Max. Candela) (10% Max. Candela) Candela Total Wattage Type Pattern Type in Degrees in Degrees Value Efficiency
175W MH
1
ED-17 Narrow Spot 1 H x 3 V 7 H x 15 V 17 H x 33 V 102,434 60%
Narrow Flood 3 H x 3 V 16 H x 23 V 30 H x 45 V 53,892 71%
Medium Flood 5 H x 3 V 52 H x 18 V 74 H x 41 V 25,698 84%
Wide Flood 7 H x 6 V 70 H x 55 V 132 H x 103 V 8,346 84% Vertical Flood 7 H x 6 V 98 H x 58 V 147 H x 130 V 5,420 71% Horizontal Spot 6 H x 6 V 80 H x 27 V 111 H x 120 V 10,694 83%
400W MH
2
BT-37 Narrow Spot 1 H x 2 V 8 H x 16 V 14 H x 27 V 304,593 41%
Narrow Flood 2 H x 3 V 12 H x 19 V 23 H x 36 V 162,701 50%
Medium Flood 4 H x 4 V 22 H x 23 V 48 H x 49 V 92,191 81%
Wide Flood 7 H x 6 V 86 H x 58 V 137 H x 101 V 20,734 81% Vertical Flood 7 H x 7 V 106 H x 57 V 145 H x 139 V 14,761 74% Horizontal Spot 5 H x 5 V 86 H x 15 V 94 H x 90 V 34,463 61%
1000W MH
3
BT-37 Narrow Spot 1 H x 4 V 5 H x 16 V 13 H x 48 V 633,201 51%
Narrow Flood 2 H x 4 V 14 H x 27 V 29 H x 55 V 279,879 53%
Medium Flood 4 H x 4 V 23 H x 33 V 53 H x 68 V 197,476 78%
Wide Flood 7 H x 6 V 85 H x 74 V 139 H x 116 V 52,625 83% Vertical Flood 7 H x 7 V 111 H x 55 V 152 H x 135 V 42,981 76% Horizontal Spot 6 H x 5 V 85 H x 16 V 105 H x 96 V 99,290 64%
150W HPS
4
ED-17 Narrow Spot 1 H x 4 V 9 H x 23 V 17 H x 46 V 74,261 61%
Narrow Flood 3 H x 4 V 21 H x 31 V 31 H x 57 V 41,007 70%
Medium Flood 5 H x 4 V 49 H x 27 V 77 H x 54 V 23,522 81%
Wide Flood 7 H x 6 V 8 x 69 V 136 H x 109 V 7,567 79% Vertical Flood 7 H x 6 V 99 H x 55 V 145 H x 126 V 6,331 69% Horizontal Spot 5 H x 6 V 77 H x 14 V 95 H x 112 V 18,237 84%
400W HPS
5
ED-18 Narrow Spot 1 H x 4 V 6 H x 20 V 13 H x 47 V 260,454 48%
Narrow Flood 2 H x 4 V 15 H x 27 V 27 H x 52 V 112,314 44%
Medium Flood 4 H x 5 V 23 H x 33 V 54 H x 71 V 86,573 78%
Wide Flood 7 H x 6 V 88 H x 80 V 140 H x 117 V 21,630 80% Vertical Flood 7 H x 7 V 102 H x 60 V 145 H x 137 V 20,686 75% Horizontal Spot 6 H x 5 V 81 H x 15 V 102 H x 100 V 44,433 62%
1
If using a 100W MH lamp, apply a 0.629 scaling factor to the 175W MH maximum candela values.
2
If using a 250W MH lamp, apply a 0.569 scaling factor to the 400W MH maximum candela values.
3
If using a 750W MH lamp, apply a 0.745 scaling factor to the 1000W MH maximum candela values.
4
If using a 100W HPS lamp, apply a 0.594 scaling factor to the 150W HPS maximum candela values.
5
If using a 250W HPS lamp, apply a 0.55 scaling factor to the 400W HPS maximum candela values.
DESIGN GUIDE
- Illumination Recommendations
- Beam Pattern Information
ILLUMINATION RECOMMENDATIONS
Effective floodlighting design is a complex and subjective task. Results are heavily dependent upon surrounding light levels, surface finish of the intended target, spectral color distribution of the lamp source, mounting location allowances, and viewers perceptions.
The following table lists IESNA (Illuminating Engineering Society of North America) recommended illuminance levels for the floodlighting of buildings and monuments.
Cooper Lighting Application Engineers are available to assist in providing design layouts, aiming diagrams, and illuminance plots for your next floodlighting project. Consult your INVUE Lighting Systems Representative for more information.
BEAM PATTERN INFORMATION
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VISION FLOOD Architectural Flood Luminaire
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