Patent ID: 7440690

Claim:
A focus detection apparatus comprising: an auto focus sensor which receives light reflected from an object at a plurality of light receiving sections and photoelectrically converts the received light; a converting section which converts sensor data output from each of the light receiving sections into a digital signal; a memory section which stores digital data of the digital signal corresponding to each sensor data converted by the converting section; a plurality of arithmetic sections which concurrently execute a plurality of types of arithmetic operations which determine a focal point of the digital data corresponding to each sensor data stored in the memory section; and a control section which adjusts the focal point determined by the arithmetic operation result of each of the arithmetic sections, wherein the auto focus sensor has a plurality of line sensors, each of the line sensors having both a first light receiving section including a column of photoelectric conversion elements and a second light receiving section including a column of photoelectric conversion elements, wherein the converting section is provided in accordance with each line sensor, and wherein multiple sets of the plurality of arithmetic sections are provided in accordance with each line sensor.