LENS DEVICE, AN IMAGE CAPTURING DEVICE ON WHICH A LENS DEVICE CAN BE MOUNTED, AND A CAMERA SYSTEM Russian patent published in 2020 - IPC G03B17/14 H01R13/213 

FIELD: image forming devices.

SUBSTANCE: invention relates to a lens device, an image capturing device on which a lens device can be mounted, and a camera system. Disclosed lens device is configured to be detachably mounted on an image capturing device, which includes a first part of a bayonet connection and a pin, note here that first part of bayonet joint includes multiple first fragments with bayonet projections. Lens device comprises second part of bayonet connection, which includes multiple second fragments with bayonet projections, configured to engage with a plurality of first fragments with bayonet ledges, and a concave portion in which the pin is inserted, when the lens device is mounted on the image capturing device. When looking in the direction of the central axis of the second part of the bayonet connection, the side of the concave fragment is the side on which the concave fragment is provided relative to the boundary line, which is a line which is orthogonal to the reference line passing through the center of the concave fragment and the central axis of the second part of the bayonet connection, and which passes through said central axis. Multiple second fragments with bayonet ledges include first and second fragments with bayonet ledges on concave fragment side, each of which has at least a portion located on the side of the concave fragment, and a fragment with a bayonet projection on the opposite side, wherein both ends are provided on the opposite side from the side of the concave fragment relative to the boundary line and are satisfied 1.00≤θ1/θ2≤1.40 and 90°<θ1+θ2<180°, where θ1 is the angle formed between the support line and the first line, which passes through said central axis and the end of the first fragment with the bayonet ledge on the side of the concave fragment, which is closer to concave fragment, and θ2 is angle formed between support line and second line, which passes through said central axis and end of second fragment with bayonet ledge on side of concave fragment, which is closer to concave fragment.

EFFECT: technical result is higher accuracy of installation of image forming device and lens device, which have identical bayonet diameter, but are not mutually compatible.

41 cl, 27 dwg