Diaphragm switching apparatus
AssigneeFuji Photo Optical Co., Ltd.
InventorNobuyuki Shirie
Life of this patent
Estimating the term…
Abstract
A diaphragm switching apparatus according to the present invention comprises a gear adapted to rotate in response to a driving force of a focus motor used for driving a focus lens; a shaft for rotatably supporting the gear; a diaphragm switching means, secured to the shaft 12 and adapted to rotate together with the shaft, for switching a diaphragm upon rotating; an intermediate member engaging the diaphragm switching means so as to rotate together with the shaft and being slidable axially with respect to the shaft; an urging means for urging the gear away from the diaphragm switching means by way of the intermediate member by receiving a reaction force from the diaphragm switching means; and a holding part 12a for receiving the gear urged by the urging means.
Claims5
A diaphragm switching apparatus comprising:
- a gear adapted to rotate in response to a driving force of a focus motor for driving a focus lens;
- a shaft for rotatably supporting said gear;
- diaphragm switching means, secured to said shaft and adapted to rotate together with said axis, for switching a diaphragm as said shaft rotates;
- an intermediate member, attached to said shaft so as to be axially slidable, engaging said diaphragm switching means so as to rotate together with said shaft;
- urging means for urging said gear away from said diaphragm switching means by way of said intermediate member by receiving a reaction force from said diaphragm switching means;
- and
- a holding part for receiving said gear urged by said urging means.
Dependencies are inferred from the claim text.