Range measuring device for camera

A range measuring device for use in a camera, comprising:

• means for measuring a distance to a first area including approximate center of a rectangular object field and producing a first measuring output;
• means for measuring a distance to a second area positioned apart from said approximate center by a predetermined distance in a direction of a first diagonal line of said rectangular object field and producing a second measuring output;
• means for measuring a distance to a third area positioned apart from said approximate center by a predetermined distance in a direction of a second diagonal line of said rectangular object field intersecting said first diagonal line, and producing a third measuring output;
• said first, second and third areas being discretely distributed in said object field;
• and
• means for determining a distance to said object field on the basis of said first, second and third measuring outputs.

A range measuring device for use in a camera, comprising:

• means for measuring the distance to an object field;
• location detecting means for discriminating whether the object field is indoors or outdoors;
• means for predetermining a reference distance range obtaining a high probability of existence of a primary object therein, in accordance with a discrimination of said location detecting means;
• and
• means for evaluating said distance measured by said measuring means on the basis of said reference distance range.