Camera apparatus, camera body, interchangeable lens, and method of controlling operation of camera body

摘要

The invention speeds up operation of an interchangeable lens. The interchangeable lens, which is removably mounted on a camera body, includes a communication control microcomputer, a lens driving circuit and a lens driving actuator. A body-side microcomputer and the communication control microcomputer of the interchangeable lens are connected and are capable of communicating with each other. Lines are provided in such a manner that the lens driving circuit and body-side microcomputer can communicate directly. A command from the body-side microcomputer is input to the lens driving circuit. This allows the lens driving circuit to be controlled directly and makes it possible to control the interchangeable lens at high speed.

主权项

1. A camera apparatus comprising a camera body and an interchangeable lens removably mounted on said camera body;
said camera body including: a camera body communication control unit; a camera body communication terminal electrically connected to an interchangeable lens communication terminal, which has been formed on said interchangeable lens, by mounting said interchangeable lens; and a camera body signal line connected directly between said camera body communication control unit and said camera body communication terminal; said interchangeable lens including: an interchangeable lens communication control unit; a lens driving circuit for driving a lens driving motor; the interchangeable lens communication terminal electrically connected to said camera body communication terminal of said camera body by mounting said interchangeable lens on said camera body; an interchangeable lens data communication line connected directly between said interchangeable lens communication control unit and said interchangeable lens communication terminal; and an interchangeable lens driving signal line connected directly between said lens driving circuit and said interchangeable lens communication terminal; wherein said camera body communication control unit outputs a data communication command, which is for performing data communication with said interchangeable lens, in response to an interchangeable lens communication command, and outputs an interchangeable lens driving signal in response to an interchangeable lens driving command; and said interchangeable lens cannot be divided into an interchangeable lens part and an accessory.