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23/08/2006 1/7 FD3 series lenses
FD3 SERIES LENSES
for OSRAM GOLDEN DRAGON
TM
LEDs
High efficiency
Available in 2 different beams
35mm diameter, sized for
MR11 lamp applications
Patent Pending
The FD3 series Low Profile Tri-lens module is
available for Golden dragon LEDs from Osram
Optosemiconductor.
A software-optimized aspheric profile combined
with front shaped micro-lens arrays enable the
generation of two different lens models: narrow
beam and medium beam (2).
The high collection efficiency reaches 85% of
the total flux emitted from the LED.
These lenses are assembled with a 35mm
diameter holder. The holder assures the proper
relative placement between the lens and the
Golden dragon LEDs. Heat staking the three
legs of the holder to the customer’s PCB or heat
sink provides excellent optical and mechanical
assembly (see Fraen Application Note FAN01-
EN, at www.fraensrl.com).
Typical applications are:
• Reading lamps
• Signs
• Architectural Lighting
• Street Lights
• Most application where uniformity
and high intensity over a wide angle
is required
(1) Golden Dragon is a trademark of Osram
OptoSemiconductor. For technical specification on
LEDs please refer to the Golden dragon datasheet
or visit www.osram-os.com
(2) Typical beam divergence may change with different
color LEDs.
For ordering instructions, please contact
FRAEN CORPORATION FRAEN Srl
Scott M. Grzenda Dimitri De Gaetano
80 Newcrossing Road Via E. Fermi, 7
Reading MA 01867 20090 Settimo M (MI) – Italy
Phone: 781.205.5300 Phone: +39-02-335.456.225
Fax: 781.942.2426 Fax: +39 02-335.456.239
optics@fraen.com info@fraen.com
To find a local distributor, check the Fraen website.
Website: www.fraensrl.com
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23/08/2006 2/7 FD3 series lenses
General Characteristics
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Lens Material
Holder Material
Operating Temperature range
Storage Temperature range
Optical Grade PMMA
PC ABS or Transparent PC
-40deg C / + 80 deg C
-40deg C / + 80 deg C
Average transmittance in visible spectrum (400 – 700nm) >90%, as measured using 3mm
thick Optical Grade PMMA.
Please note that flow lines and weld lines on the external surfaces of the lenses are acceptable if
the optical performance of the lens is within the specification described in the section “OPTICAL
CHARACTERISTICS”
IMPORTANT NOTE – Lenses handling and cleaning:
Handling: Always use gloves to handle lenses and/or handle the lenses only by the flange.
Never touch the outside surfaces of the lenses with fingers; finger oils and contamination will
absorb or refract light.
Cleaning: Clean lenses only if necessary. Use only soap and water to clean the surfaces
and lenses. Never expose the lenses to alcohol, as it will damage the plastic.