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US 11,693,119 B2Granted
Laser radar for work vehicle with attenuation layer
AssigneeKubota Corporation
InventorToshiaki Kuroki
Life of this patent
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Abstract
A laser radar for a work vehicle includes a light emitter, a light receiver, and a light attenuation layer. The light emitter is configured to emit a laser light. At least part of the laser light is reflected as a reflected light. The light receiver is configured to receive the reflected light. The light attenuation layer is provided to weaken the reflected light such that the light receiver is configured to receive the reflected light which has been weakened via the light attenuation layer.
Claims19
A laser radar for a work vehicle, comprising:
- a light emitter configured to emit a laser light, at least part of the laser light being reflected as a reflected light;
- a light receiver configured to receive the reflected light;
- a hood covering the light emitter and the light receiver, the hood having a central axis and a transmission area provided around the central axis;
- a deflection mirror separated from the light receiver and the hood in an axial direction along the central axis, the deflection mirror being rotatable around the central axis to reflect the laser light emitted by the light emitter to direct the laser light toward the transmission area and to reflect the reflected light from the transmission area to direct the reflected light toward the light receiver;
- and
- a light attenuation layer provided to weaken the reflected light such that the light receiver is configured to receive the reflected light which has been weakened via the light attenuation layer,
- wherein the light attenuation layer extends about an entire perimeter of the central axis.
4 more elements
A laser radar for a work vehicle, comprising:
- a light emitter configured to emit a laser light, at least part of the laser light being reflected as a reflected light;
- a light receiver configured to receive the reflected light;
- a hood covering the light emitter and the light receiver, the hood having a central axis and a transmission area provided around the central axis;
- a deflection mirror separated from the light receiver and the hood in an axial direction along the central axis, the deflection mirror being rotatable around the central axis to reflect the laser light emitted by the light emitter to direct the laser light toward the transmission area and to reflect the reflected light from the transmission area to direct the reflected light toward the light receiver;
- and
- a light attenuation layer provided to weaken the reflected light such that the light receiver is configured to receive the reflected light which has been weakened via the light attenuation layer,
- wherein the light attenuation layer is a light attenuation sheet having a truncated cone shape.
4 more elements
Dependencies are inferred from the claim text.