Lens mount for TV camera

Details Lens mount for TV camera Lens mount for TV camera

1995-10-19

1997-07-01

Ben, Loha

Optical: systems and elements

Lens

With support

359827, 396531, G02B 702

Patent

active

056444419

ABSTRACT:
A lens mount for a TV camera for mounting a lens having a bayonet ring on its rear face and a cylindrical projection which is smaller in diameter than the bayonet ring and extends rearward coaxially with the optical axis of the lens is provided with a camera-side bayonet ring which is movable between an engagement position where the camera-side bayonet ring is engaged with the lens side bayonet ring to hold the lens on the camera and a disengagement position where the bayonet rings are disengaged from each other to permit removal of the lens from the camera. Three chucking pieces are supported on a support ring at regular intervals in a circumferential direction of the support ring and are movable toward and away from the longitudinal axis of the support ring which is in alignment with the optical axis of the camera between a retracted position where they are away from the outer surface of the inserted cylindrical projection on the lens and a chucking position where they abut against the outer surface of the inserted cylindrical projection from three directions and locate the lens so that the optical axes of the lens and the camera are aligned with each other.

REFERENCES:
patent: 4239364 (1980-12-01), Doi
patent: 4247190 (1981-01-01), Hashimoto et al.
patent: 4448509 (1984-05-01), Katsuma et al.
patent: 4457609 (1984-07-01), Tomino et al.
patent: 4600277 (1986-07-01), Murray, Jr.
patent: 5483384 (1996-01-01), Takizawa et al.

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