DS45 Datasheet, PDF (6/17 Pages) Lumileds Lighting Company – power light source LUXEON® III Emitter

Optical Characteristics at 1400mA, Junction Temperature, T_J = 25ºC
Radiation
Pattern
Lambertian
Color
Red
Red Orange
Amber
Table 6.
Dominant Wavelength^[1]
λD
Min.
Typ.
Max.
620.5nm
613.5nm
584.5nm
627nm
617nm
590nm
645nm
620.5nm
597nm
Spectral
Half width^[2]
(nm)
∆λ_1/2
20
18
17
Temperature
Coefficient of
Dominant
Wavelength
(nm/^oC)
∆λ_D/ ∆T_J
0.05
0.06
0.09
Total
Included
Angle^[3]
(degrees)
θ_0.90V
170
170
170
Viewing
Angle^[4]
(degrees)
2θ 1/2
130
130
130
Optical Characteristics at 1400mA, Junction Temperature, T_J = 25ºC,
Continued
Radiation
Pattern
Side Emitting
Color
Red
Red Orange
Amber
Table 7.
Dominant Wavelength^[1]
λD
Min.
Typ.
Max.
620.5nm
613.5nm
584.5nm
627nm
617nm
590nm
645nm
620.5nm
597nm
Spectral
Half width^[2]
(nm)
∆λ_1/2
20
18
17
Temperature
Coefficient of
Dominant
Wavelength
(nm/^oC)
∆λ_D/ ∆T_J
0.05
0.06
0.09
Typical
Total Flux
Percent
within
first 45° ^[5]
Cum Φ_45°
<30%
<30%
<30%
Typical
Angle
of Peak
Intensity ^[6]
θ_Peak
75° 85°
75° 85°
75° 85°
Notes: (for Tables 6 & 7)
1.Dominant wavelength is derived from the CIE 1931 Chromaticity diagram and represents the perceived color. Lumileds
maintains a tolerance of ± 0.5nm for dominant wavelength measurements.
2.Spectral width at ½ of the peak intensity.
3.Total angle at which 90% of total luminous flux is captured.
4.θ½ is the off axis angle from lamp centerline where the luminous intensity is ½ of the peak value.
5.Cumulative flux percent within ± 45° from optical axis.
6.Off axis angle from lamp centerline where the luminous intensity reaches the peak value.
7.All red, red orange and amber products built with Aluminum Indium Gallium Phosphide (AlInGaP).
LUXEON III Emitter DS45 (3/06)
6