Package housing, lidar module, and autonomous vehicle

A light laser detection and ranging (LiDAR) module comprising:

• a package housing comprising:
• a tube shell comprising an inner cavity with a first light-transmitting hole, a second light-transmitting hole, a first through hole and a second through hole;
• a first functional layer filling the first light-transmitting hole, the first functional layer comprising a first collimating lens and a first filter on a side of the first collimating lens away from the inner cavity;
• a second functional layer filling the second light-transmitting hole, the second functional layer comprising a first light-collecting mirror and a second filter on a side of the first light-collecting mirror away from the inner cavity;
• a first electrical pin filling the first through hole;
• a second electrical pin filling the second through hole;
• and
• a temperature control layer accommodated in the inner cavity;
• and
• a laser transceiver module in the inner cavity and in direct contact with the temperature control layer, the temperature control layer being configured to cool the laser transceiver module, the laser transceiver module comprising:
• a light-emitting module opposite to the first functional layer and electrically connected to the first electrical pin, the light-emitting module being configured to emit a reference light to a target to be measured;
• and
• a light-receiving module opposite to the second functional layer and electrically connected to the second electrical pin, the light-emitting module being configured to receive a detection light reflected from the target and obtain position information of the target according to the reference light;
• wherein the reference light sequentially passes through the first collimating lens and the first filter before being emitted to the target, and the detection light sequentially passes through the second filter and the first light-receiving mirror before being received by the light-receiving module.

An autonomous vehicle comprising a vehicle body and a light laser detection and ranging (LiDAR) module on the vehicle body, the LiDAR module comprising:

• a package housing comprising:
• a tube shell comprising an inner cavity with a first light-transmitting hole, a second light-transmitting hole, a first through hole and a second through hole;
• a first functional layer filling the first light-transmitting hole, the first functional layer comprising a first collimating lens and a first filter on a side of the first collimating lens away from the inner cavity;
• a second functional layer filling the second light-transmitting hole, the second functional layer comprising a first light-collecting mirror and a second filter on a side of the first light-collecting mirror away from the inner cavity;
• a first electrical pin filling the first through hole;
• a second electrical pin filling the second through hole;
• and
• a temperature control layer accommodated in the inner cavity;
• and
• a laser transceiver module in the inner cavity and in direct contact with the temperature control layer, the temperature control layer being configured to cool the laser transceiver module, the laser transceiver module comprising:
• a light-emitting module opposite to the first functional layer and electrically connected to the first electrical pin, the light-emitting module being configured to emit a reference light to a target to be measured;
• and
• a light-receiving module opposite to the second functional layer and electrically connected to the second electrical pin, the light-emitting module being configured to receive a detection light reflected from the target and obtain position information of the target according to the reference light;
• wherein the reference light sequentially passes through the first collimating lens and the first filter before being emitted to the target, and the detection light sequentially passes through the second filter and the first light-receiving mirror before being received by the light-receiving module.