Light source system
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United States of America
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Jan 28, 2025
Grant Date -
N/A
app pub date -
Feb 2, 2021
filing date -
Feb 2, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
The present disclosure relates to a light source system suitable for use in a time of flight camera. The light source system includes a light source, such as a laser, and a driver arranged to supply a drive current to the light source to turn the light source on to emit light. The driver includes or is coupled to a capacitor to store energy and then discharge to generate the drive current. The driver can be integrated into a semiconductor die on which the light source is mounted. Thus, the driver can include within it the source of energy for the drive current and the light source and driver can be very close together. Therefore, the light source may be turned on and off very quickly, such as with a relatively large drive current, such as to output a high optical power, short duration light pulse.
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