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DieMount's
spotlight LED are fabricated by the technology of microstructured
submounts, too. The complete LED light is emitted with high efficiency
to a small angle of typically ±3-4°. Light losses as typical
for alternative LED packages do not occur. The optical ray formation is
done by a combination of two reflectors, a metallic reflector around
the LED die and a plastic reflector that is inserted to the metallic
reflector and operates on the basis of total reflection.
This design allows the efficient illumination of objects. LED operating
current can be low thus increasing the LED lifetime and reducing the
electrical power consumption.
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Contrary to
the spotlight setup the LED pointer generates via an optical image a
sharp illuminated spot. It is used for light pointer and light barrier
systems that do not allow the application of laser diodes due to eye safety or lifetime reasons.
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POF coupled
LED modules allow the generation of high light densities at difficult
accessible places, e.g. inside a complex sensor setup. The option to
couple light of different optical wavelengths by optical splitters into
a single output fiber offers new opportunities in the design of fiber
optical illumination modules. Optical fibers that are designed to
radiate light (side light fibers) offer new approaches for the LED
illumination technology.
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Illumination
technology uses 2 dimensional waveguides to realize LED lamps or
shining advertising spaces. They can be made from every transparent
material with scattering particels inside for light emission.
Lamp glasses made of glass with air bubbles generate a very pleasent
light impression. During the lamp glass fabrication small air bubbles
are introduced to the interior glass material and scatter the ligth
guided inside the 2 dimensional glass waveguide. Other suitable 2 dimensional
light waveguides are transparent plastic sheets with introduced
scattering particles or roughened surfaces. Our LED modules for 2
dimensional light waveguides are designed for a waveguide thickness of
3 - 3.5mm. |
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