Table of Contents
Advertisement
Camera Frame
Rate (fps)
10
10
10
500
500
500
3.3.2
Finite lighting output period
Extending the idea of the previous section, setting the output count would generate
the lighting with a specific period of time. For example, the PWM period is 10ms, gen-
erating a 100ms duration lighting should the output count be set to 10, so that
10ms*10 = 100ms. The table below is the matrix for reaching different lighting output
duration for given camera frame rates and expected intensity.
Camera
Frame
Frame Rate
Period
(fps)
(ms)
10
100
10
100
10
100
500
2
500
2
500
2
3.3.3
Strobe
In strobe applications, the lighting flashes in a short period with maximum intensity. It
uses single PWM period output to reach the maximum lighting intensity in a short
period. In this application, camera frame rate isn't one of the constrains. The low
period could be any number, or kept to the shortest it can be, because the only thing
that affects the application is the high period. The table below lists some examples for
different settings and results.
Strobe Duration (ms)
10
100
500
* Low could be set to any figure, as long as it wouldn't affect the cycle time.
Frame Period
PWM Period
(ms)
(ms)
100
10
100
10
100
10
2
0.2
2
0.2
2
0.2
PWM
Lighting
Period
Output
(ms)
duration (ms)
10
100
10
200
10
500
0.2
100
0.2
200
0.2
500
High (ms)
10
100
500
19
Intensity
High
Low
(%)
(ms)
(ms)
100%
10
0
50%
5
5
0%
0
10
100%
0.2
0
80%
0.16
0.04
0%
0
0.2
Intensity
High
Low
(%)
(ms)
(ms)
100%
10
0
50%
5
5
0%
0
10
100%
0.2
0
80%
0.16
0.04
0%
0
0.2
Low (ms)*
Output Count
5
1
5
1
5
1
AIIS-1882 User Manual
Output
Count
0
0
0
0
0
0
Output
Count
10
20
50
500
1000
2500
Advertisement
Table of Contents
