×

System for detecting reflecting objects

  • US 3,977,792 A
  • Filed: 12/16/1974
  • Issued: 08/31/1976
  • Est. Priority Date: 12/17/1973
  • Status: Expired due to Term
First Claim
Patent Images

1. A system for detecting reflecting objects comprisinga reflector supported on a supporting body,means for directing light on said supporting body and said reflector,a plurality of light detecting elements for receiving reflected light from said supporting body and said reflector, each of said plurality of light detecting elements producing an electrical output in response to light received from said supporting body and said reflector, said reflector being detected by a specific one of said plurality of said light detecting elements,means for detecting said reflector by comparing the electrical output of said specific one of said plurality of light detecting elements with a reference signal, andmeans for generating said reference signal from the average value of all of said electrical outputs from said plurality of light detecting elements.

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