Relative Spectrum Emission I
rel
= f (l), T
A
= 25
o
C, I
F
= 20mA
V(l) = Standard eye response curve
45
White
Relative Luminous Intensity
40
35
30
25
20
15
10
5
0
350
450
550
650
750
850
950
1050
Wavelength (nm)
FIG.1 RELATIVE LUMINOUS
INTERSITY
VS. WAVELENGTH
Forward Current I
F
= f (V
F
)
TA = 25 C
(mA)
I
F
50
40
30
20
10
0
0.0
o
Relative Luminous Intensity I
V
/I
V
(20mA) = f (I
F
)
TA = 25
o
C
2.0
1.8
I
V
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.0
2.0
3.0
4.0
5.0
V
F
6.0
(V)
0
10
20
30
40
I
F
50
(mA)
Forward Voltage (V)
FIG.2 FORWARD CURRENT
VS. FORWARD VOLTAGE
Forward Current I
F
(mA)
FIG.3 RELATIVE LUMINOUS INTENSITY
VS. FORWARD CURRENT
Ambient Temperature VS. Allowable Forward
(mA)
I
F
40
Radiation Characteristic I
rel
= f (q)
0
o
10
o
20
o
30
o
Y
X
30
40
o
20
1.0
0.9
10
T
A
temp. ambient
0
0
20
40
60
80
100
T (
o
C)
0.7
0.5 0.3
0.1
0.2 0.4 0.6
0.8
50
o
60
o
70
o
80
o
90
o
X
Y
Ambient Temperature T
A
(
o
C)
FIG.4 FORWARD CURRENT
VS. AMBIENT TEMPERATURE
FIG.5 RADIATION DIAGRAM
4
UOT [ UNITY OPTO TECHNOLOGY ]
