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Position determination and adjustment system and light sensing device used for the same

  • US 6,646,732 B2
  • Filed: 07/19/2001
  • Issued: 11/11/2003
  • Est. Priority Date: 07/19/2000
  • Status: Expired due to Term
First Claim
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1. A position determining system comprising:

  • a rotary laser device including beam emission means for emitting at least three fan-shaped beams at different angles in radial directions from a center point while rotating the fan-shaped beams about the center point so as to transmit information on the angles of the fan-shaped beams relative to a vertical plane, means for detecting the direction in which the fan-shaped beams are emitted, and communication means for communicating data detected by said means for detecting the direction; and

    a light receiving and sensing device including a single receiving means for receiving the fan-shaped beams emitted by the beam emission means, means for receiving the transmitted data from the communication means, determining means for determining a phantom plane based on the received fan-shaped beams and the received data, output means for outputting differential vertical angles relative to the phantom plane.

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