Patent ID: 9453984
Filing Date: 2016-09-27
CPC Classification: G02B,G03B,H04N

Claim Text:
1. An image pickup apparatus to which a plurality of types of lens units are selectively attachable, the plurality of types of lens units including a first lens unit that performs communication with the image pickup apparatus with a first voltage and a second lens unit that performs communication with the image pickup apparatus with a second voltage different from the first voltage, the image pickup apparatus comprising: a mount to mechanically couple with the lens unit and to electrically connect the image pickup apparatus with the lens unit, a controller configured to operate with a third voltage different from at least one of the first and second voltages, and to control communication with the lens unit attached to the image pickup apparatus; and a determiner configured to determine the type of the lens unit attached to the image pickup apparatus, wherein the mount includes a first terminal through which the determiner determines the type of the lens unit attached to the image pickup apparatus and a second terminal for supplying source power for a lens controller, which controls communication with the image pickup apparatus, to the lens unit, wherein the controller is configured to supply, to the lens unit through the second terminal, a fourth voltage different from at least one of the first and second voltages, and the fourth voltage is not changed according to a determination result of the determiner, and wherein the controller is configured to produce, as a voltage of a signal for the communication, from the third voltage, one of the first and second voltages corresponding to a determination result of the determiner.