Lens unit of TV camera
AssigneeFuji Photo Optical Co., Ltd.
InventorsHiroyuki Kawamura, Hiroshi Mizumura
Life of this patent
Estimating the term…
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AssigneeFuji Photo Optical Co., Ltd.
InventorsHiroyuki Kawamura, Hiroshi Mizumura
Estimating the term…
A lens unit is attached to a body of a TV camera, and a main power supply of the camera body supplies power to motors that drive movable lenses of the lens unit. When the lens unit becomes unused, specifically, when the main power supply is turned off, or when the lens unit becomes detached from the camera body, a power supply switching part of the lens unit switches the power supply to an auxiliary power supply provided in the lens unit to allow the lens unit to operate. Then, a control circuit moves a focus lens and a zoom lens to an infinity end and a wide angle end, respectively, or to predetermined security positions, so as to prevent the deterioration of the operability and optical performance of the lens unit due to vibrations and shocks during transportation of the lens unit. Thereafter, the auxiliary power supply is turned off.
A lens unit for a TV camera, the lens unit being attached to a camera body of the TV camera, the lens unit comprising:
A lens unit for a TV camera, the lens unit being attached to a camera body of the TV camera, the lens unit comprising:
A lens unit for a TV camera, the lens unit being attached to a camera body of the TV camera, the lens unit comprising:
Dependencies are inferred from the claim text.