Datasheet

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29/09/2006 3/6 FS3 series lenses for Seoul Semiconductor LEDs
Optical Characteristics:
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Typical total divergence* (degrees)
Lens Part Number Type of lens Blue LEDs Green LEDs Red LEDs White LEDs
FS3-HNB1-SSP3-H Narrow beam 10.0 10.0 9.5 13.0
FS3-HMB1-SSP3-H Medium beam 22.0 21.5 21.0 22.5
FS3-HWB1-SSP3-H Wide beam 47.0 46.5 45.5 44.5
• The typical divergence varies with LED color due to different chip size and chip position tolerance.
• The typical total divergence is the full angle measured where the luminous intensity is half of the peak
value.
Typical on-axis efficiency* (cd/lm) (2)(3)
Lens Part Number Type of lens
Blue LEDs Green
LEDs
Red LEDs White LEDs
FS3-HNB1-SSP3-H Narrow beam 13.9 24.1 19.6 14.7
FS3-HMB1-SSP3-H Medium beam 3.5 4.9 3.3 3.8
FS3-HWB1-SSP3-H Wide beam 1.4 1.6 1.2 1.6
(2) To calculate the on-axis intensity, multiply the on-axis efficiency of the lens (cd/lm) by the total flux of
the Z-Power LED used. For more detail on flux binning please check the Z-Power LED datasheet at
http://www.seoulsemiconductor.com/ .
(3) Luminous intensity depends on the flux binning and tolerances of the LEDs. Please refer to the Z-
Power datasheet for more details on flux binning and mechanical tolerances.
(*) Measurements are made with preliminary lenses. Values can be different with full production.