Distance measuring device installed in camera
AssigneeOlympus Corporation
InventorsMasataka Ide, Osamu Nonaka
Life of this patent
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Abstract
The present invention provides a distance-measuring device has an AF area sensor that includes an image pick up element formed on a semiconductor substrate for receiving two images having a parallax therebetween, and a photo reception signal processing circuit formed on the semiconductor substrate for processing signals corresponding to light received by the image pick up element. On the basis of sensor data (outline data) obtained by integration executed in the AF area sensor in an outline detection mode, the distance-measuring device detects a main subject in a photography screen, sets a distance-measuring area including the main subject, and measures a distance to the main subject.
Claims3
A distance-measuring device comprising:
- an AF area sensor formed on a semiconductor substrate for pick upping two images formed to have a parallax therebetween, and integrating sensor data that corresponds to an appropriate amount of light;
- a photo reception signal processing circuit formed on the semiconductor substrate for creating outline data based on the sensor data from the AF area sensor;
- a control section detecting a main subject in a photography screen on the basis of the outline data output from the photo reception signal processing circuit, and setting, in the photography screen, a distance-measuring area including the main subject;
- and
- a distance-measuring section for executing distance measurement in the distance-measuring area set by the control section.
Dependencies are inferred from the claim text.