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ELECTROOPTICAL CONTROL SYSTEM FOR VEHICLES

  • US 3,604,512 A
  • Filed: 09/16/1969
  • Issued: 09/14/1971
  • Est. Priority Date: 09/16/1969
  • Status: Expired due to Term
First Claim
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1. An electrooptical control system in combination with an adjustable element mounted on an earthworking vehicle cOmprising:

  • a source of electromagnetic radiation;

    lens means rotatably mounted on the energy emitting end of said source, said lens means converting said source into a substantially thin reference plane of energy fanning out from said source;

    drive means connected to said lens means to rotate said lens means;

    vertical reference means mounted on said vehicle and connected to control said drive means to maintain said substantially thin reference plane of energy at a selected angle relative to vertical by rotating said lens means;

    mounting means associated with said source and said lens means, and said drive means attaching them to said vehicle employing the control system so said reference plane of energy projects toward said adjustable element also mounted on said vehicle with the lens axis of said lens means parallel with the lineof-travel with said vehicle;

    at least two optical sensors secured to said adjustable element at spaced apart location so they will move vertically with said element through said reference plane of energy; and

    actuating means operably connected between said element and said vehicle to adjust said element vertically, said optical sensors being coupled to said actuating means whereby said element can be adjusted relative to said reference plane of energy by reference to signals from said optical sensors.

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