Radar-equipped light unit and laser radar device
A technology of lidar and lamps, which is applied in the directions of measuring devices, signal devices, vehicle sub-unit functions, etc., and can solve the problems such as the degradation of detection performance of lidar devices.
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no. 1 approach
[0031] Hereinafter, a first embodiment of the present disclosure will be described based on the drawings.
[0032] The radar-mounted lamp unit 1 of this embodiment is mounted on a vehicle, such as figure 1 As shown, a headlight 2 , a laser radar device 3 , a control device 4 and a housing 5 are provided.
[0033] The headlamp 2 is attached to the front of the vehicle, and emits visible light toward the front of the vehicle. As a result, the headlight 2 can ensure the driver's field of view ahead of the vehicle when the vehicle is running at night.
[0034] The laser radar device 3 is installed at the front of the vehicle. Furthermore, the laser radar device 3 detects at least the distance to an object existing in front of the vehicle (hereinafter referred to as a front object) by irradiating laser light toward the front of the vehicle and detecting the reflected laser light.
[0035] The laser radar device 3 of the present embodiment is a laser radar device that irradiates ...
no. 2 approach
[0054] Hereinafter, a second embodiment of the present disclosure will be described based on the drawings. In addition, in 2nd Embodiment, the part which differs from 1st Embodiment is demonstrated. Common structures are assigned the same reference numerals.
[0055] The radar-mounted lamp unit 10 of the second embodiment is mounted on a vehicle, such as Figure 5 As shown, a headlight 2 , a laser radar device 3 and a housing 5 are provided.
[0056] The headlight 2 is a halogen lamp.
[0057] The laser radar device 3 includes a light source 21 , a light scanning unit 22 , a light detection unit 23 , and a control unit 24 .
[0058] The light source 21 is composed of, for example, a semiconductor laser diode, and emits laser light in a 900 nm band. The light scanning unit 22 two-dimensionally scans the laser light from the light source 21 and irradiates it to the outside of the laser radar device 3 . The photodetection unit 23 detects laser light incident on the inside of...
no. 3 approach
[0077] Hereinafter, a third embodiment of the present disclosure will be described based on the drawings. In addition, in 3rd Embodiment, the part which differs from 2nd Embodiment is demonstrated. Common structures are assigned the same reference numerals.
[0078] Such as Figure 8 As shown, the radar-mounted lamp unit 10 of the third embodiment differs from the second embodiment in that a light source 31 is provided instead of the light source 21 . In addition, the radar-equipped lamp unit 10 of the third embodiment is different from the second embodiment in that the control unit 24 does not execute threshold value setting processing.
[0079] The light source 31 is composed of, for example, a semiconductor laser diode, and emits laser light of 1000 nm or more. In addition, the upper limit of the wavelength of the laser light irradiated by the light source 31 is the upper limit of the wavelength of the laser light detectable by the light detection unit 23 .
[0080] The...
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Abstract
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