UV Curing - UV Curing Lamp - UV Curing Equipment
The goal of modern UV curing equipment is to deliver the maximum
amount of UV energy to the irradiation zone while controlling
the heat generated at the substrate. Heat is primarily generated
from radiation absorbed by the substrate during processing, although
there is also some heat generated by the polymerization reactions
in the UV curing process and by heating of the
gas in the light path. Maximizing UV energy and controlling heat
is accomplished by controlling the energy at the irradiation zone.
For UV curing, the two basic optical elements that control
energy at the irradiation zone are UV Cold Mirrors and UV Hot
Mirrors. NTFL UV cold mirrors reflect UV energy while removing
heat-producing visible and infrared energy. The removal of visible
and infrared energy can be accomplished by transmitting the visible
and infrared energy through the reflecting optic (typically fused
silica) or by absorbing the visible and infrared energy and transferring
the absorbed heat to the reflecting optic (typically aluminum).
NTFL UV cold mirrors are extremely effective at increasing the
amount of reflected UV energy at the irradiation zone while simultaneously
significantly reducing the visible and infrared energy. The result
is lower temperatures at the irradiation zone, allowing the processing
of temperature sensitive substrates. However, UV cold mirrors
only work on radiant energy from the lamp that is reflected from
the cold mirror, not the direct radiation from the lamp. To reduce
the direct visible and infrared radiation, system designers of
UV curing systems also employ UV hot mirrors. UV hot mirrors
act on both direct and reflected radiation to reduce the amount
of visible and infrared energy without degrading the transmitted
UV energy. UV hot mirrors are situated on the output side of the
radiation source and are always made of fused silica or quartz
. Since UV hot mirrors are less efficient than UV cold mirrors,
many UV curing systems utilize both types of optics.
NTFL is the leading worldwide manufacturer of optics for UV curing
applications. If you would like to discuss possible application
for your UV curing equipment, please
contact us to talk with an applications engineer.
For more information on our services please click below:
Optical Coating
UV Curing
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We would be pleased to answer any
questions that you may have by
phone, fax, or email. Please feel
free to contact us!
4534 Carter Court,
Chino CA 91710
(800) 854-0089
(909) 591-0276
(company voice mail after hours)
(909) 628-1418
sales@newportlab.com
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or directions to our facility
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Thursday, March 10, 2005 10:54 PM |
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