| 摘要 |
PURPOSE:To improve remarkably the workability by constituting the titled device so that a zoom ring of a zoom lens barrel and a zoom gear are not connected in the operation at the time of an adjustment, and the focal adjustment and the picture position adjustment can be executed independently, respectively. CONSTITUTION:A lens fitting base 2 of a zoom lens is connected to a guide member 3 through a clamping screw 2a and an adjusting screw 2b, and the member 3 is engaged a slidably with a guide lever 5. Also, a zoom ring 1a of the lens barrel and a ring gear 6 are structured so that they can be separated in the operation by a clamping screw 7. When executing the adjustment, the clamping screw 7 is loosened, the fitting base 2 is stopped at an unmagnification position, and thereafter, the screw 2a is loosened and the screw 2b is operated, by which the focal adjustment is executed. Subsequently, the lens barrel is moved and fixed after adjusting the picture position. In that case, the ring 1a and the gear 6 are disconnected by the clamping screw 7, and no inconvenience is generated. Therefore, two adjustments are executed independently and the workability is improved remarkably.
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