Hoya Corporation

Shinsuke Shoji

Kazunori Ishizuka

Toshiharu Suzuki

Takamitsu Sasaki

Shinya Suzuka

A flexible wiring board mounting structure of an image shake correcting apparatus, the image shake correcting apparatus includes a image sensor serving as a part of a photographing optical system and capable of moving in directions orthogonal to an optical axis of the photographing optical system, a control circuit mounted to an element independent of the image sensor, and a flexible wiring board which connects the image sensor and the control circuit to each other. The flexible wiring board includes an inner side connecting portion connected to the image sensor, an outer side connecting portion connected to the control circuit, and a flexible portion provided in an allowance space defined between the inner side connecting portion, the outer side connecting portion, the image sensor and an inner peripheral surface of an innermost ring member, out of ring members that support lens groups of the photographing optical system.

Flexible wiring board mounting structure of an image shake correcting apparatus

A lens barrel movable between a first state, in which optical elements of a photographing optical system are all aligned on an optical axis, and a second state in which at least one of the optical elements is retracted to a radially-retracted position and moved rearward, the lens barrel includes a support ring; a radially-retractable optical element holding frame which supports the radially-retractable optical element, and is supported by the support ring to be movable between a first position corresponding to the first state and a second position corresponding to the second state; and an optical-axis-direction-movement limit device which limits movement of the radially-retractable optical element holding frame in the optical axis direction relative to the support ring when the radially-retractable optical element holding frame is at the first position.

Lens barrel

A lens barrel includes a helicoid ring provided with a helicoid; a retractable rotational ring which is guided by the helicoid to move along an optical axis while rotating, wherein the retractable rotational ring includes a pair of split retractable rotational rings which are supported so as to integrally rotate and to be relatively movable in the optical axis direction with respect to each other; first and second slide-engaging portions provided on one and the other of the pair of split retractable rotational rings, wherein the first and second slide-engaging portions are slidably engaged with the helicoid; and a biasing device which biases the pair of split retractable rotational rings in opposite directions in the optical axis direction so that the first and second slide-engaging portions are pressed in opposite directions against an opposing pair of first and second guide surfaces, respectively, of the helicoid of the helicoid ring.

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Saitama, Japan

Shinsuke Shoji