×

Balanced focus system and method for achieving optimal focus of different areas of an object that are concurrently imaged

  • US 5,768,401 A
  • Filed: 08/02/1995
  • Issued: 06/16/1998
  • Est. Priority Date: 08/02/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A balanced focus system for achieving optimal focus of different areas of an object that are concurrently imaged and then combined to form a combined image, comprising:

  • an optical system for concurrently capturing respective area images of said different areas of said object;

    a focus adjustment mechanism adapted to change a focus of said optical system relative to said object;

    a camera adapted to receive said area images and combine said area images to form said combined image so that said area images appear as portions of said combined image;

    a machine vision system configured to control said focus adjustment mechanism and to receive from said camera and store a series of combined images, each of said combined images of said series being captured during a different focus of said optical system; and

    a balance focus means associated with said machine vision system for performing a gradient analysis on each of said respective area images and for determining an optimal focus for said optical system based upon said series of said combined images.

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