×

Position-detecting system

  • US 20060098098A1
  • Filed: 10/24/2005
  • Published: 05/11/2006
  • Est. Priority Date: 10/25/2004
  • Status: Active Grant
First Claim
Patent Images

1. A position-detecting system which is used to detect a relative position of a movable member with respect to a fixed member, comprising;

  • a plurality of light sources that is provided on one of said fixed member and said movable member, and which emits a spotlight;

    a position-sensing device that is provided on another one of said fixed member and said movable member, and which receives the spotlight, and further outputs a position signal relating to said relative position in accordance with a position where the spotlight is received; and

    a light-source controller that controls an ON/OFF state of said plurality of light sources;

    wherein said light-source controller continuously turns on one of said plurality of light sources when only a spotlight from said one of said plurality of light sources is detected by said position-sensing device, and flashes two or more than two of said plurality of light sources when spotlights from said two or more than two of said plurality of light sources are detected by said position-sensing device.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×