×

Focus detecting device for use with cameras

  • US 4,952,966 A
  • Filed: 04/11/1988
  • Issued: 08/28/1990
  • Est. Priority Date: 01/10/1983
  • Status: Expired due to Term
First Claim
Patent Images

1. An image sensing device comprising:

  • first light sensing means capable of accumulating electric charges in response to light incident thereon, said first light sensing means having a first group of a plurality of light sensing elements extending along a line;

    second light sensing means capable of accumulating electric charges in response to light incident thereon, said second light sensing means having a second group of a plurality of light sensing elements extending along a line;

    a first light measuring element exclusively located in the vicinity of said first group of light sensing elements on one side of the line;

    a second light measuring element exclusively located in the vicinity of said second group of light sensing elements on the other side of the line;

    means for transferring the charges accumulated by said first and second light sensing means to obtain a signal indicative of the sensed image; and

    means responsive to said first and second light measuring elements for controlling the charge accumulation period in which said first and second light sensing means carry out the accumulation of electric charges.

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