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Plasma Light Application |
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Continuous
Full Spectrum Light (CFSL)
Circadian Rhythms - Natures Time Keeper. Circadian
rhythms are important in determining human sleeping patterns
more info » |
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Horticulture
Comparison of Growth Under Metal Halide and Microwave Powered Sulphur
Lamps.
more info » |
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Light
Pipe
Large and small light pipes and light distribution tubes that can
be illuminated by Sulphur.
more info » |
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Aquaculture
Reversing the spread of hunger is one of
humanity’s paramount challenges. It will mean overcoming
the fatalistic belief that chronic, persistent hunger is
inevitable.
more info » |
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Photography & Projection
Excellent colour rendering, high lumen
levels and continuous operation with no degradation in
quality.
more info » |
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Commercial
Demonstration and Assessment of a Sulphur Lamp Retrofit Lighting
System at Hill Air Force Base, Utah
more info » |
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Excellent colour rendering, high lumen levels
and continuous operation with no degradation in quality |
| There is a lot of debate over the true usefulness
and practical application of Colour Rendering Index (CRI).
Incandescent bulbs have a CRI rating of 100, yet are far
from ideal for colour rendering and matching. Why? With
a colour temperature of only 2700k they are far too weak
at the blue end of the spectrum making it next to impossible
to distinguish between various shades of blue. The CRI
rating of 100 simply means that 8 colours (see fig.1) look
exactly the same as they would under a black body radiator
at 2700k. |
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CRI
test colours 1 through to 8 |
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| The same can be said for lamps that exceed 6500k
in colour temperature as they are too weak in the red end of
the spectrum, making reds and oranges appear too similar creating
a "washed out" appearance. The northern sky with a
colour temperature of about 7500k and a CRI of 100 is not necessarily
the ideal colour rendering light source either. An ideal light
source for colour rendering will have both a colour temperature
similar to daylight (5000K to 6000K) and a high CRI value (>85).
Regardless of whether or not CRI is the fairest measure of
colour rendering for luminaires, it is important for specification,
compliance and certification purposes. The US Department of
Energy’s Energy Star program, offers generous manufacturer
and consumer enticements for developing and installing and
high-efficiency lighting products. CRI is one of the criteria
, so you need to ensure you address CRI and efficacy issues
at design time. For example, to be Energy Star listed, kitchen
luminaires and portable task lamps need a CRI of 80, outdoor
pathway lights and ceiling down lights require a CRI of 70.
Common lamp types and their typical ratings and film performance. |
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Sulphur Plasma
CCT: 6000K
CRI: 86
Lumen: High Level
Lighting: Continuous
Good for Movie & Photo |
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Xenon lamp
CCT: 5600K
CRI: 85
Lumen: Medium Level
Lighting: Flash
Good for Photo only |
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Metal Halide
CCT: 4500K
CRI : 60
Lumen: Medium Level
Lighting: Continuous |
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Halogen
CCT: 3200K
CRI: 95
Lumen Medium level
Lighting continuous |
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Incandescent Light
Bulb
CCT: 2700K
CRI: 100
Lumen: Low Level
Lighting: Continuous |
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Excellent Light Projection
Sulphur Plasma spectrum is full and continuous and excellent
for all types of photography and filming. Measured at 8m
from source a 1.2KW Xenon lamp measured 10,000 lumens on the
subject.
When the 1.2KW Xenon was replaced with a 1.3KW PI-VL greater
than 50,000 lumens was measured on the subject. Source:
TV Film Studio Hamburg Germany 2008.
German Attention to Detail |
A beautiful, full and continuous spectrum, the closest
to natural daylight achievable. Because this is a wirelessly
powered light source with no electrodes the plasma inside
the bulb is never contaminated by burnt or damaged electrode
debris. The light quality remains pure and perfect, unchanging
and no degradation, a superiorly constant output. The
special ingredients inside the bulb are >99.6% pure,
the German optics (patented) are the best.
No other singular artificial light source is capable
of delivering so much light from such a small point of
source, lending itself to many focal variances. |
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