Abstract
Abstract
Auto-focus in a camera can be performed by comparing the image formed by light passing through a half of the imaging lens to the image formed by light passing through the other half of the imaging lens. A PDAF image sensor has an array of pixels. A microlens covers a pixel consisting of two photodiodes. In a camera using a PDAF image sensor, a photodiode receives light passing through a half of the imaging lens and the other photodiode receives light passing through the other half of the imaging lens. Thus, comparing light received by two photodiodes, a PDAF image sensor is capable of performing auto-focus of the camera. The PDAF image sensor is also capable of performing 3-D imaging.
Subject
General Physics and Astronomy
Cited by
1 articles.
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