Ricoh Company, Ltd.

Shigeru Irisawa

Junichi Shinohara

Takehide Ohno

Koichi Muramatsu

Masami Nasu

Atsushi Satoh

Takashi Ando

Atsushi Sato

Yohsuke Suzuki

Yoshio Serikawa

Keiji Ohkubo

A shake correcting system includes an optical imaging system, an image sensor, a movable unit comprising a movable frame in which the image sensor is fixed and a rotation restricting element, a base movably supporting the movable unit in a predetermined plane substantially orthogonal to an optical axis of the optical imaging system, a drive mechanism driving the movable unit relative to the base in directions vertical and orthogonal to the optical axis, a blur correcting function to correct blurs in a subject image due to shakes of the shake correcting system, a rotation restricting mechanism preventing rotation of the movable frame around the optical axis with the rotation restricting element, and a slide mechanism allowing the movable unit to be freely movable in the predetermined plane, and comprising a magnet, a magnetic plate attracted to the magnet, a spherical element supported between the magnetic plate and the magnet.

Shake correcting system with slide mechanism which allows unit to be freely movable, lens barrel, imaging device and hand-held data terminal

The present invention aims to provide an imaging apparatus with blur correction function in which a retention lever to mechanically retain an image sensor requires a minimum moving space and the thickness of a lens barrel can be reduced in optical axis direction. The imaging apparatus includes an image sensor () photoelectrically converting an image of a subject into an electric signal; an optical photographic system () forming the subject image on an imaging plane of the image sensor (); a lens barrel () containing the optical photographic system () and being extendable/retractable in an optical axis direction of the optical photographic system (); a frame member () movably supporting the image sensor () in a plane perpendicular to the optical axis; a blur correction unit () correcting a blur in the image due to hand shake by moving the frame member () in a plane perpendicular to the optical axis; and a retainer unit () retaining the frame member () in one of the optical axis direction and a direction perpendicular to the optical axis.

Imaging apparatus having blur correction mechanism

An imaging apparatus, including an image pick up device capable of moving in a transverse direction to a photographing optical axis, a drive circuit configured to prevent an image on the image pick up device from blurring or reduce the image blur by moving the image pick up device based on an amount of the image blur, a position detection device configured to detect a position of the image pick up device, a storing device configured to store reference positional information showing that the image pick up device is in the reference position based on an output of the position detection device, the position of the image pick up device being detected based on the reference positional information stored in the storing device when the image pick up device is driven by the drive circuit.

Imaging apparatus having image blur suppression function

The image input unit comprises a pixel shift evaluation value and reliability calculating section that calculates a pixel shift evaluation value based on image data for a plurality of images photographed before and after an image sensing device is displaced for a predetermined amount. Moreover, a system controller judges whether pixel shift photography has been normally performed or not based on the pixel shift evaluation value, and displays the judgment result on a display.

Method of and unit for inputting an image, and computer product

A photographing apparatus which performs an image-blur suppression properly even through a computation device disposed in a main body of the photographing apparatus and a photographing element movable along an XY plane are electrically connected is provided according to the present invention. The image-blur suppression mechanism comprises a flexible base plateincluding a second linear partand a fourth linear partwhich are plastically deformed along Z axial direction, meeting such a condition that an intersection line between a plane containing the second linear partand the XY plane and an intersection line between a plane containing the fourth linear partand the XY plane are intersected with XY axes, respectively.

Photographing apparatus with image-blur suppression mechanism

A lens barrel includes a) a plurality of lens groups each having at least one lens, b) a plurality of lens retaining frames, including a retractable lens retaining frame, c) lens retaining frame driving devices, d) a main-guide shaft member in parallel to the optical axis to support the retractable lens retaining frame rotatably in longitudinal and circumferential directions of the main-guide shaft member, and e) a sub-guide shaft member to guide the retractable lens retaining frame along the optical axis and to allow the retractable lens retaining frame to be retracted toward the retracted position at a retracting point on the main-guide shaft member and to guide the retractable lens retaining frame on the main-guide shaft member along the optical axis at other than the retracting point. The retractable lens retaining frame is formed with an engaging portion to engage with the sub-guide shaft member and to be guided along the sub-guide shaft member, and the engaging portion being formed with an opened portion configured to allow the retractable lens retaining frame to be released from the sub-guide shaft member at the retracting point.

Growing community of inventors

Chigasaki, Japan

Shigeru Irisawa