Vehicle laser radar system
First Claim
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1. A vehicle laser radar system comprising:
- a plurality of light transmitting and receiving devices mounted on a vehicle, each of said light transmitting and receiving devices comprising a light emitting section and a light receiving section;
control means for controlling each of said light transmitting and receiving devices; and
light transmitting means for splitting and transmitting a light beam, supplied from a light source arranged in a first one of said light emitting sections to a least a second one of said light emitting sections, said light beam thus split being emitted from said second one of said light emitting sections as well as from said first one of said light emitting sections.
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Abstract
In a vehicle laser radar system capable of performing both distance measurements and information communication, only one laser diode is required. A light beam output by a first light emitting section (10) is split and applied through an optical cable to a second light emitting section (14), so that the light beam thus split is emitted from the second light emitting section. A control unit places the laser diode in an operating state for a predetermined period of time, and, when the laser diode is in an operating state, chooses between distance measuring data or communicating data alternately, and causes the laser diode to emit a light pulse according to the data thus chosen.
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Citations
8 Claims
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1. A vehicle laser radar system comprising:
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a plurality of light transmitting and receiving devices mounted on a vehicle, each of said light transmitting and receiving devices comprising a light emitting section and a light receiving section; control means for controlling each of said light transmitting and receiving devices; and light transmitting means for splitting and transmitting a light beam, supplied from a light source arranged in a first one of said light emitting sections to a least a second one of said light emitting sections, said light beam thus split being emitted from said second one of said light emitting sections as well as from said first one of said light emitting sections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification