LLNF-4T08-H, LLFL-6T08-H, LLWF-6T08-H

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LLNF-4T08-H, LLFL-6T08-H, LLWF-6T08-H (Rev 1.0

– 10/18/2021) p 3/8

Optical Specification

Table 1:

Lens Description Part number

Beam angle

[1]

FWHM

Field angle

[2]

Optical efficiency

[3]

On-axis intensity

[4]

(cd/lm)

Narrow Flood

LLNF-4T08-H

24°

53°

88%

2,2

Flood

LLFL-6T08-H

34°

83°

88%

1,7

Wide Flood

LLWF-6T08-H

45°

89°

88%

1,1

Notes for Table 1:

1.

Beam angle is defined as the full width at 50% of the max intensity (FWHM).

2.

Field angle is defined as the full width at 10% of the max intensity.

3.

Optical efficiency is defined as the ratio between the incoming flux and the outgoing flux.

4.

On-axis intensity is defined as the ratio between the total input lumen and the intensity in the optical center of the lens.

Typical Relative Intensity over Angle

– TIR Optics

Figure 1: Typical relative intensity over angle

0%

20%

40%

60%

80%

100%

-90

-60

-30

0

30

60

90

Angle (degrees)

LLNF-4T08-H

LLFL-5T08-H

LLWF-4T08-H

LLNF-4T08-H

LLFL-6T08-H

LLWF-6T08-H