LASER EMITTER AND OPTICAL RANGING APPARATUS
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United States of America Patent
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Issued Date -
May 23, 2024
app pub date -
Jan 31, 2024
filing date -
Aug 31, 2021
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Abstract
A laser emitter includes a booster circuit, a drive circuit, a second diode, and a light emission driver. The booster circuit has a coil, a first switch, a first diode, and a capacitor. The booster circuit raises a DC voltage supplied by a DC power supply. The first switch executes switchover between a conductive state and a non-conductive state of the coil. The first diode is connected in forward bias. The drive circuit has a laser diode and a second switch. The laser diode is supplied by the DC voltage raised by the booster circuit. The second switch executes switchover between a conductive state or non-conductive state of the laser diode. The second diode is connected to the first switch in series, and is connected in forward bias. The light emission driver controls the booster circuit and the drive circuit.
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