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Survey system

  • US 7,193,695 B2
  • Filed: 01/28/2005
  • Issued: 03/20/2007
  • Est. Priority Date: 01/30/2004
  • Status: Active Grant
First Claim
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1. A survey system, comprising:

  • a target provided with a recursion reflector for reflecting light in a direction from which the light comes; and

    a survey apparatus provided with an automatic collimating device for automatically coinciding a collimation axis of said recursion reflector with that of a telescope,wherein said target is provided with a guide light transmitter for emitting guide light showing the direction of the guide light transmitter, andsaid survey apparatus includes collimation preparing means having a direction detector for detecting the direction of said guide light transmitter by receiving said guide light and turning said telescope toward the direction of said recursion reflector on the basis of an output signal from said direction detector before starting said automatic collimating device; and

    said guide light transmitter scans a fan beam that is wide in a width direction and narrow in a thickness direction in a direction differing from the width direction as guide light.

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