VEHICLE TURN SIGNALLING APPARATUSES WITH LASER DEVICES, LIGHT PROJECTION CIRCUITS, AND RELATED ELECTROMECHANICAL ACTUATORS
First Claim
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1. A vehicle turn signaling apparatus comprising:
- a laser light device configured to project a laser light beam of visible wavelength toward a road surface adjacent to the vehicle to visibly warn other drivers where a driver of the vehicle can intend to move the vehicle; and
a turn signal laser light projection activation circuit that receives a turn signal which indicates that the driver intends to move the vehicle to the road surface adjacent to the vehicle, and is configured to;
respond to the turn signal while the vehicle is moving faster than a first threshold speed by controlling the laser light device to project the laser light beam toward the road surface adjacent to the vehicle, andrespond to the turn signal while the vehicle is moving slower than a second threshold speed by controlling the laser light device to prevent the laser light beam from being projected toward the road surface adjacent to the vehicle.
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Abstract
A vehicle turn signaling apparatus includes a light source that is powered by a turn signal circuit of the vehicle. The light source is configured to project a low divergence visible line onto a driving lane adjacent to the vehicle in response to activation of the turn signal circuit to visibly warn other drivers where a driver of the vehicle may intend to move the vehicle.
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Citations
20 Claims
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1. A vehicle turn signaling apparatus comprising:
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a laser light device configured to project a laser light beam of visible wavelength toward a road surface adjacent to the vehicle to visibly warn other drivers where a driver of the vehicle can intend to move the vehicle; and a turn signal laser light projection activation circuit that receives a turn signal which indicates that the driver intends to move the vehicle to the road surface adjacent to the vehicle, and is configured to; respond to the turn signal while the vehicle is moving faster than a first threshold speed by controlling the laser light device to project the laser light beam toward the road surface adjacent to the vehicle, and respond to the turn signal while the vehicle is moving slower than a second threshold speed by controlling the laser light device to prevent the laser light beam from being projected toward the road surface adjacent to the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicle turn signaling apparatus comprising:
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a laser light device configured to project a laser light beam of visible wavelength toward a road surface adjacent to the vehicle to visibly warn other drivers where a driver of the vehicle can intend to move the vehicle; and a turn signal laser light projection activation circuit that receives a turn signal, which indicates that the driver intends to move the vehicle to the road surface adjacent to the vehicle, and an object warning signal, which indicates that an object is detected in a path of the laser light beam from the laser light device to the road surface adjacent to the vehicle, the turn signal laser light projection activation circuit is configured to; respond to the turn signal during absence of the object warning signal indicating an object is in the path of the laser light beam from the laser light device to,the road surface adjacent to the vehicle, by controlling the laser light device to project the laser light beam toward the road surface adjacent to the vehicle, and respond to the turn signal while the object warning signal indicates an object is in the path of the laser light beam from the laser light device to the road surface adjacent to the vehicle by controlling the laser light device to prevent the laser light beam from being projected toward the road surface adjacent to the vehicle. - View Dependent Claims (9, 10, 11)
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12. A vehicle turn signaling apparatus comprising:
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a laser light device configured to project a laser light beam of visible wavelength toward a road surface adjacent to the vehicle to visibly warn other drivers where a driver of the vehicle can intend to move the vehicle; an ambient light sensor configured to output an ambient light brightness signal indicating brightness of ambient light at a location on the vehicle; and a turn signal laser light projection activation circuit that receives a turn signal which indicates that the driver intends to move the vehicle to the road surface adjacent to the vehicle, and is configured to respond to the turn signal by controlling the laser light device to project the laser light beam toward the road surface adjacent to the vehicle, and to control the laser light device to adjust power density of the laser light beam responsive to the ambient light brightness signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification