Sony Corporation

Takashi Terai

Takashi Kato

Daisuke Ikeda

Hiroshi Mashima

Ryuhei Azuma

Shintaro Miyatani

Yusuke Nanjo

Koji Okajima

Kunioki Takahashi

Kiyomitsu Furuyama

Toshiaki Edamitsu

Masayoshi Hamada

Naoko Matsubara

Asuka Matsumoto

The present disclosure provides a medical observation device to achieve improvement in functionality resulting from switching of optical elements and miniaturization of the device. The medical observation device includes: an imaging optical system configured to capture an image of a subject; an image sensor configured to photoelectrically convert the image of the subject captured by the imaging optical system; and an element holding frame configured to hold a plurality of optical elements and to be capable of being rotated around a rotation shaft. An axial direction of the rotation shaft is set to a direction orthogonal to an optical axis direction that is a direction of a line from the imaging optical system to the image sensor, and the element holding frame is rotated and thus at least one of the optical elements among the plurality of optical elements is positioned on an optical axis.

Medical observation device and lens barrel of medical observation device

To enable a moving object to be movable even when electromotive driving of the moving object is not possible and prevent inconvenience from occurring during medical procedures. A medical observation device includes: an imaging optical system configured to capture an image of a subject; an image sensor configured to photoelectrically convert the image of the subject captured by the imaging optical system; a driving force transmission mechanism configured to have a transmission gear and to transmit a driving force to a moving object; a manual manipulation knob configured to be manipulated to rotate in an axial rotation direction of a fulcrum shaft and to be capable of moving between a first position and a second position in an axial direction of the fulcrum shaft; a switch gear configured to be connected to the manual manipulation knob and to be integrated with the manual manipulation knob and rotate in the axial rotation direction, and to be integrated with the manual manipulation knob and move in the axial direction between a meshing position and a non-meshing position; and a driving motor configured to give a driving force to the moving object. Meshing of the switch gear and the transmission gear is released at the non-meshing position, and the switch gear and the transmission gear mesh with each other at the meshing position.

A lens drive unit includes: a driven member that moves a lens in an optical axis direction; a first gear rotated by a drive force of a drive motor; a second gear rotated by a drive force of a manual operation section; a third gear that engages with the first gear and the second gear and is rotated when the first gear is rotated but the second gear is not rotated whereas rotated when the second gear is rotated but the first gear is not rotated; and a fourth gear rotated when the third gear is rotated to transmit the drive force of the drive motor or the drive force of the manual operation section to the driven member, wherein the reduction ratio of the fourth gear to the first gear is set to be greater than the reduction ratio of the fourth gear to the second gear.

Lens drive unit and imaging apparatus

A lens barrel includes: a lens holding frame holding a lens; a mounting member to which the lens holding frame is mounted; an inclination regulating member regulating a position of the lens holding frame with respect to the mounting member, thereby regulating inclination of the lens holding frame with respect to an optical axis; and an eccentricity regulating member regulating the position of the lens holding frame with respect to said mounting member, thereby regulating eccentricity of the lens holding frame with respect to the optical axis, in which the eccentricity regulating member is supported by said inclination regulating member.

Lens barrel and image pickup apparatus

An exchangeable lens includes: a cam member; a plurality of lenses; a lens holding frame; a drive motor; a worm screw; a worm wheel; a planetary roller; a first rotating member; a first bearing seat; a second rotating member; and a second bearing seat.

Exchangeable lens and imaging device

When a brightness level of an object is below a predetermined level, an ND filter is removed from an iris opening to fully open the iris opening, and when the brightness level of the object is above a predetermined level, the ND filter is placed to the iris opening to fully close the iris opening. When the ND filter is moved between the fully-opened state and the fully-closed state, an exposure change amount corresponding to an amount offsetting the exposure change amount due to a state transition is generated by controlling iris blades.

Growing community of inventors

Kanagawa, Japan

Takashi Terai