Patent ID: 9197801
Filing Date: 2015-11-24
Classification: G02B,G03B,H04N

Abstract:
1. A camera body having a substantially circular opening provided in a front side thereof, a lens barrel being capable of being attached and detached to and from said opening, wherein said lens barrel includes a lens-side bayonet lug which is provided at a rear end of said lens barrel and projects toward an outer peripheral side, a lens-side contact portion, a rear end of which is exposed, and a lens-side mount surface, and wherein said camera body comprises: a body-side bayonet lug which projects from a peripheral edge of said opening toward an inner peripheral side, wherein said lens-side bayonet lug is positioned immediately behind said body-side bayonet lug when said lens barrel is mounted to said camera body; an opposed surface which is provided on a rear surface of said body-side bayonet lug and is positioned immediately in front of said lens-side bayonet lug when said lens barrel is mounted to said camera body; a body-side mount surface which is positioned in front of said opposed surface and with which said lens-side bayonet surface comes into contact from front when said opposed surface faces said lens-side bayonet lug; and a body-side contact portion, a front end of which comes into contact with said rear end of said lens-side contact portion when said opposed surface faces said lens-side bayonet lug, said front end being positioned in front of said opposed surface and behind said body-side mount surface and, when said lens barrel is attached to the camera body, the body side contact portion is positioned between the body side mount surface and the opposed surface.