7

Figure 4. Relative efficiency (luminous intensity per unit current) vs. peak current.

Figure 6. Relative luminous intensity vs. angular displacement. 15 degree family.

0

IPEAK – PEAK FORWARD CURRENT – mA

0

0.6

0.8

300

20

100

1.2

1.0

0.2

0.4

50

200

10

DH As AlGaAs RED

0

IPEAK – PEAK FORWARD CURRENT – mA

0.4

0.6

0.8

1.0

90

20

70

50

40

1.3

1.1

HIGH PERFORMANCE GREEN

YELLOW

HIGH EFFICIENCY

RED/ORANGE

HER, ORANGE, YELLOW, HIGH

PERFORMANCE GREEN, EMERALD GREEN

0.5

0.7

0.9

1.2

30

60

80

10

EMERALD GREEN

0

0

TA – AMBIENT TEMPERATURE – °C

40

80

40

20

10

20

60

30

100

5

15

25

35

DH As AlGaAs RED

R

θJA = 559° C/W

R

θJA = 689° C/W

0

0

TA – AMBIENT TEMPERATURE – °C

40

80

40

20

10

20

60

30

100

5

15

25

35

HER, ORANGE, YELLOW, AND HIGH

PERFORMANCE GREEN, EMERALD GREEN

R

θJA = 470° C/W

R

θJA = 705° C/W

R

θJA = 300° C/W

YELLOW

HER, ORANGE, GREEN,

EMERALD GREEN

1

0

ANGULAR DISPLACEMENT – DEGREES

0.8

0.6

0.5

0.7

0.2

45

0.1

0.3

0.4

40

35

30

25

20

10

5

0

15

-5

-10 -15 -20 -25 -30 -35 -40 -45

0.9