GE UltraSport Manuale Utente Scaricare il pdf (Pagina 7)

Photometric Performance—Traditional sports lighting

systems use metal halide lamps with large bulb jackets and mogul

base sockets located in the axial center-line of the optical. This

lamp design impedes optical efficiency by producing inefficient

symmetrical light distributions with too much light in the upper

beam. Some upper beam light is lost in the sky and grandstands or,

in the worst case, can be the source of light trespass and glare.

The Ultra

★★

★Sport floodlight, on the other hand, utilizes an

advanced double-ended metal halide lamp without a bulb jacket

and a new unique reflector design.

The elimination of the outer bulb allows placement of the lamp

arc into the focal point of shallow parabolic reflector forms

needed to build high center beam candle power and provide the

highest beam efficiency possible with wide beam distributions.

This new lamp/reflector configuration produces a more

efficient, oval light distribution with very tight vertical light control

to minimize wasted light and maximize light on the playing field.

Glare/Spill Light Control—The Ultra

★★

★Sport floodlight’s

precise optical design limits the amount of vertical spill and light

pollution without the use of external visor/louver assemblies that

increase wind loading and structure costs. Optional internal cutoff

skirts are available and provide direct cutoff of the arc tube at 15

degrees above the floodlight’s center aiming point for optimum

glare control without the high losses normally associated with

external glare reducing devices.

Photometric Choices—Different combinations of primary and

secondary reflectors, in conjunction with the new double-ended

lamp, provide multiple oval light distributions.

Ultra

✭

Sport

Floodlight

W01

WW1

S01

M01

Beam

Efficiency

= 53%

Total

Efficiency

= 86%

Beam

Efficiency

= 54%

Total

Efficiency

= 85%

Beam

Efficiency

= 65%

Total

Efficiency

= 84%

Beam

Efficiency

= 70%

Total

Efficiency

= 84%

S01 =Stadium oval without internal glare control

(NEMA 4X2)

S02 =Stadium oval with internal glare control

(NEMA 4X2)

M01 =Medium oval without integral internal glare control

(NEMA 4X2 [64x24])

M02 =Medium oval with integral internal glare control

(NEMA 4X2 [70X24])

W01 =Wide oval without integral internal glare control

(NEMA 5X3 [81X38])

W02 =Wide oval with integral internal glare control

(NEMA 5X3 [81X37])

WW1 =Extra wide oval without internal glare control

(NEMA 5X4)

WW2 =Extra wide oval with internal glare control

(NEMA 5X4)

1 2 3 4 5 6 7 8 9 10 11 12

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Sharp LC-60LE651E User Manual (2 pages)

Brand: Sharp | Category: For Home | Size: 1.17 MB |

LC-60LE651E

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