LENS DEVICE, AN IMAGE CAPTURING DEVICE ON WHICH 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 configured detachably mounted on an image capturing device, has a pin and a first bayonet connection portion, which includes a plurality of first fragments with bayonet projections. Lens device comprises second part of bayonet connection, which includes a plurality of second fragments with bayonet projections, configured to engage with a plurality of first fragments with bayonet projections, and concave fragment, 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 a side, on which concave fragment is provided relative to boundary line, which is line, which is orthogonal to a 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. Plurality of 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, wherein 75°≤θ10≤105°, 75°≤θ20≤105°, 75°≤θ30≤105°and 75°≤θL≤105 are satisfied, where θ10 is the angle for the first internal angle, in which its vertex is the fragment center with the bayonet projection on the opposite side, θ20 is the angle for the second inner angle, in which its vertex is the center of the second fragment with the bayonet ledge on the side of the concave fragment, θ30 is the angle for the third inner angle, in which its vertex is the center of the first fragment with the bayonet ledge on the side of the concave fragment, and θL is the angle for the fourth inner angle, in which its vertex is the center of the 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.

42 cl, 27 dwg