(5) Is the

on axis luminous intensity measured in candela per lumen

with a typical

Luxeon LED. Candela per Lumen

where is the intensity measured in candela

and

is the total flux of the LEDs under test.

(6) Multiply the candela per lumen value

with the flux of the LED to obtain the expected on

axis intensity in candela. Please refer to the Luxeon datasheet to verify the flux bin.

K

F

K

typical

(

)

(7) Luminous Intensity depends on the LED flux binning and LED tolerances. Please refer to the

Luxeon datasheet for more details on flux binning and mechanical tolerances.

K

=I/F

I

3

Typical on axis intensity (candela per Lumen

) with Batwing LED

(5)

(6,7)

Typical on axis intensity (candela per Lumen

) with Lambertian LED

(5)

(6,7)

28.3

5.6

1.6

8.2

29.5

5.7

1.7

8.5

29.5

5.7

1.7

8.5

32.6

4.3

1.4

7.7

32.6

4.3

1.4

7.7

13.5

4.1

1.6

5.7

Blue

Cyan

Green

Amber

Red

White

17.1

5.3

1.5

6.2

18.1

5.4

1.7

6.5

18.1

5.4

1.7

6.5

16.5

4.3

1.2

6.4

16.5

4.3

1.2

6.4

16.5

4.3

1.2

6.4

17.1

5.5

1.8

6.7

Blue

Cyan

Green

Amber

Orange

Red

White

2003-06-16

FHS LENSES SERIES

OPTICAL CHARACTERISTICS

Part Number

Part Number

Type

Type

FHS-HNB1-LB01-x

FHS-HMB1-LB01-x

FHS-HWB1-LB01-x

FHS-HEB1-LB01-x

FHS-HNB1-LB01-x

FHS-HMB1-LB01-x

FHS-HWB1-LB01-x

FHS-HEB1-LB01-x

Narrow Beam

Medium Beam

Wide Beam

Elliptical Beam

Narrow Beam

Medium Beam

Wide Beam

Elliptical Beam