Sony Corporation

Hideki Yamaoka

Masanori Hayashi

Tomohiro Yasui

Kentaro Tashita

Yoshikazu Ito

Satoshi Imai

Nobuaki Aoki

Tatsuo Makii

Tomoya Takei

Hideo Takagi

Toshifumi Takaoka

A lens position detecting devicehas a position detecting magnet, a magnetic force detecting sensor, a positional information generating means, etc. The position detecting magnetis mounted on a rear surface of a lens holder frame. The magnetic force detecting sensorserves to generate a detected signal having a magnitude depending on the intensity of a magnetic force generated from the magnetic poles of the position detecting magnet. The magnetic force detecting sensoris disposed on a straight line that passes through the position detecting magnetparallel to the optical axis. The magnetic force detecting sensoroutputs a detected signal having a voltage corresponding (proportional) to the intensity of the magnetic force. An amplifying circuitof a positional information generating meansamplifies the detected signal Ss from the magnetic force detecting sensor

Lens position detecting device including a position detecting magnet and a magnet force detecting sensor

A main flexible substrate has a mount surface portion to be mounted to the rear surface of a base, and a movable surface portion extended from the mount surface portion. At a portion of the movable surface portion near the mount surface portion, there is provided an undulatable surface portion undulatable between a bent state of being bent relative to the mount surface portion and separate from the rear surface of the base and a flat state of being mated and mounted to the rear surface of the base. A first soldered terminal portion is formed on the front surface of the undulatable surface portion. A base end portion of a shutter flexible substrate extended to the rear side of the rear surface of the base and a base end portion of a coil flexible substrate are each provided with a second soldered terminal portion.

Lens-barrel and image pickup apparatus

A lens barrel has a base, a second lens holder frame holding a second lens group, a first lens holder frame holding a first lens group, a cam ring, and a fixed ring. The second lens holder frame has three guides projecting axially from an outer circumferential portion of an annular plate and disposed at circumferentially equally spaced intervals. Guide grooves are defined in respective portions of the annular plate which are radially inwardly faced by the guides. Guide posts engage respectively in the guide grooves, so that the second lens holder frame is nonrotatably, but axially movably supported by the guide posts.

Collapsible lens barrel and imaging device

A collapsible type optical unit is described that is capable of moving its optical system between a working position and a retracted position as well as an image-pickup apparatus including the optical unit. The optical unit and the image-pickup apparatus are capable of acquiring lens-position information by detecting a position of a lens barrel supported to be movable with respect to a fixed barrel. The collapsible type optical unit includes a second group lens frame movable along a direction of its optical axis with respect to a fixed ring and rear barrel, and a solid-state image-pickup device provided behind the second group lens frame, in which on the movable second group lens frame, a position-detecting means for detecting a position of the second group lens frame is provided.

Optical unit and imaging device

Growing community of inventors

Gifu, Japan

Hideki Yamaoka