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160~240W High Bay
Outdoor DALI LED Driver
Offcial DALI Member
MOSO POWER SUPPLY TECHNOLOGY CO.,LTD.
interview | SAPPHIRE AWARDS
with multiple CCTs, chromatic accuracy less than 2 SDCM, and
extraordinary lumen maintenance of L70 at 200,000-plus hours.
LEDs: I understand that one of the key elements behind the performance of Fold is the optics that Fluxwerx developed for Fold and other
products with unique geometries. You mentioned the word anidolic
earlier and I have seen your literature describe the optic as “anidolic
extraction optics.” Can you describe in simple terms what that means?
And maybe more succinctly, what was the goal of the optics design and
how did you achieve the goals from a technology perspective?
Santoro: Our quest was to deliver electric light to the built environment in way that creates a human experience that feels as natural and innocuous as possible — similar to the way we experience
light delivered through a window: vertically, transparently, and with
no visibility of the source. But since the energy used to generate the
light is reliant on electricity, it is important that we also provide
that experience in a responsible, sustainable, and precise way that
drives down consumption while enhancing the visual environment.
The word “anidolic” comes from the Greek root word “eidolon,”
which means “image.” Typical optics used today in most fixtures are
based on imaging optics that try to recreate the image of that source,
typically using mirrors to reflect it out. Non-imaging optics, on the
other hand, apply a very different approach. It is all about an efficient
transfer of the flux specifically without recreating an image of the
source. Fundamentally, that is exactly what we were trying to do: Capture as much light energy as possible and efficiently transfer it to a different location within the context of the luminaire that reads more like
fenestration rather than fixture.
LEDs are concentrated, highly efficient, directional point sources
of light, and therefore have created unique and different challenges in
optical and product design than what was previously delivered by traditional fluorescent and other legacy sources. Our anidolic extraction
optics addresses these challenges in two ways. We use anidolic optical structures to disperse and mix the light, eliminating any visible
images of the LED point source and ensuring consistent color. Various
extraction elements are then used to refract and reflect light directly
and indirectly to precisely control the optical distribution.
LEDs: Do I understand correctly that light is emitted from planar
optics on both sides of the Fold structure? Do those optics deliver both
direct and indirect light? It appears that light is directed upwards into
what is essentially a reflecting chamber. Is that accurate?
Santoro: There are a multitude of optical approaches that
are combined in Fold. Light is indeed emitted from both interior
planes of the luminaire, efficiently and precisely directed to create a batwing distribution in both the hemispheres, which gives the
fixture its low brightness while simultaneously providing the ability to space the runs widely apart for aggressive and sustainable,
energy-efficient design with power densities of typically between
0.30 and 0.50 W/ft2.
LEDs: Can you tell me about the way you implemented the light
engine? Are the LEDs installed along the lower edge of the fixture?
Santoro: Just asking that question confirms the success of our
approach. The invisible implementation of the LED sources is part
of the magic. Visual comfort matched with material selection and
the resultant high levels of performance are the best evidence that
“what and why” we succeed in developing award-winning products