DS60 Datasheet, PDF (5/26 Pages) Dallas Semiconductor – Micro-Centigrade Temperature Sensor

Optical Characteristics
LUXEON K2 with TFFC at Test Current^[1]
Junction and Case Temperature = 25ºC^[11]
Color
Cool White
Table 3.
Dominant Wavelength ^[2] λ_D,
Peak Wavelength ^[3] λ_P,
or Color Temperature ^[4]
CCT
Min.
Typ.
Max.
4500 K
6500 K
10000 K
Typical
Spectral
Half width ^[6]
(nm)
Δλ_1/2
Typical
Temperature
Coefficient of
Dominant
Wavelength
(nm/^oC)
Δλ_D/ ΔT_J
Typical
Total
Included
Angle ^[7]
(degrees)
θ_0.90V
160
Typical
Viewing
Angle ^[8]
(degrees)
2θ 1/2
120
Notes for Table 3:
1. Test current is 1000 mA for all LXK2 Pxx4 xxxx Emitter products (L2K2 Mxx4 11 xxxx for LUXEON K2 with TFFC
Star products).
2. Dominant wavelength is derived from the CIE 1931 Chromaticity diagram and represents the perceived color. Philips
Lumileds maintains a tolerance of ± 0.5 nm for dominant wavelength measurements.
3. Philips Lumileds maintains a tolerance of ± 2nm for peak wavelength measurements.
4. CCT ±5% tester tolerance
5. Typical CRI (Color Rendering Index) for Cool White product is 70.
6. Spectral width at ½ of the peak intensity.
7. Total angle at which 90% of total luminous flux is captured.
8. Viewing angle is the off axis angle from lamp centerline where the luminous intensity is ½ of the peak value.
9. All white products are built with Indium Gallium Nitride (InGaN).
10. White power light sources represented here are IEC60825 class 2 for eye safety.
11. Luxeon K2 with TFFC is tested and binned at 25°C with a 20ms monopulse test to minimize heating of the junction
or case.
LUXEON K2 with TFFC Datasheet DS60 (10/07)
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