Fujifilm Corporation

Kenji Hoshino

Takashi Aoki

Hideo Kobayashi

Yoichi Iwasaki

Yuichi Kawanabe

Takeya Abe

Takayuki Matsuura

Provided are a lens barrel and an imaging device, with which it is possible to lock an optical member of which the movement in an optical axis direction is made free in a case where there is no electrification, particularly to hold the optical member in a locked state without use of electric power. A movable frame that holds a focus lens is driven in the optical axis direction by a linear motor. In a case where the movable frame is to be locked with the linear motor being not electrified, the movable frame (engagement portion) is caused to abut onto a restriction portion at an end portion of the movable range of the movable frame and a locking ring is caused to rotationally move to a locking position by an electric actuator. Accordingly, the movable frame is fixed by the restriction portion and a locking portion of the locking ring to become unable to move. The electric actuator includes a worm gear as a power transmission mechanism and it is possible to hold the locking ring at the locking position by means of an irreversible rotation function of the worm gear.

Lens barrel and imaging device

A stereoscopic image display apparatus includes: a display device; an acquisition device for acquiring a left eye image and a right eye image; a first display control device for displaying a stereoscopic image on the display device based on the left and right eye image; an instruction reception device for receiving an instruction indicating enlargement and display of a partial area deviated in a horizontal direction from a center of the stereoscopic image; a cut-out device for cutting out areas necessary for the enlargement and display from the left and right eye image in response to the instruction; a deviation amount calculation unit for calculating a deviation amount in a vertical direction between a center of the left eye image and a center of the right eye image; an image movement device for moving the left eye image and/or the right eye image in the vertical direction by the calculated deviation amount; and a second display control device for enlarging and displaying the partial area on the display device based on the image after the movement.

Stereoscopic image partial area enlargement and compound-eye imaging apparatus and recording medium

A cut-out process of image corresponding to an amount of optical axis deviation of left and right imaging optical systems is applied to left and right images acquired by the left and right imaging units to correct an optical axis deviation. In this case, the amount of optical axis deviation corresponding to a current focus position is acquired from the amounts of optical axis deviation detected in accordance with focus positions stored in advance in a storage unit (step S). A cut-out process of image for stereoscopic display is applied to the left and right images based on the acquired amount of optical axis deviation (step S). As a result, the optical axis deviation of the left and right imaging optical systems can be excellently corrected regardless of the focus position (subject distance).

Stereoscopic imaging apparatus

Distortion correction with different correction accuracy is performed on images acquired in accordance with an image pick-up mode for a 3D moving image, a 3D still image, and the like, and an image cut-out process corresponding to an optical axis deviation amount of each of right and left photographing optical systems is also performed thereon, whereby optical axis deviation is corrected. In this case, an optical axis deviation amount corresponding to a current image pick-up mode is read out from among optical axis deviation amounts after distortion correction, the optical axis deviation amounts being stored in advance into an EEPROM at the time of adjustment before shipment and corresponding to respective image pick-up modes. Distortion correction corresponding to the current image pick-up mode is performed on right and left images acquired in accordance with the current image pick-up mode. Then, a cut-out process of images for stereoscopic display from the images with a full angle of view after the distortion correction is also performed on the basis of the read-out optical axis deviation amount.

Stereoscopic image pick-up apparatus

A lens unit is equipped with a lens, through which light from an object enters, and a lens barrel for holding the lens. An optical extending member is employed when observing a focal image of the lens with a microscope. A receiving portion having a receiving surface, for receiving a front end facet of the optical path extending member within the lens barrel that faces toward the lens, is formed at a portion of the lens barrel. A mounting portion positioned further rearward from a rear end facet of the optical path extending member, having a guide insertion aperture that extends in a direction perpendicular to the receiving surface and a mounting surface that extends in a direction parallel to the receiving surface is formed at the periphery of the guide insertion aperture is formed at a portion of the lens barrel.

Growing community of inventors

Saitama, Japan

Kenji Hoshino