Kamakura Koki Co., Ltd.

Teikoku Tsushin Kogyo Co., Ltd.

Ai Systems, Ltd.

Haruo Itoh

Masashi Kato

Kazuya Miyaji

Kunio Ando

Masao Kobayashi

Akio Kai

Takashi Akimoto

An anti-vibration optical device includes an objective lens group provided on one side of a housing, an eyepiece group provided on another side of the housing, an image blur corrector housed into the housing to be located between the objective lens group and the eyepiece group and including an erecting prism, a gimbal mechanism rotatably supporting the erecting prism and an actuator for rotating the erecting prism via the gimbal mechanism, a first angular velocity detection sensor configured to detect a first angular velocity, which is an angular velocity of the housing, a second angular velocity detection sensor configured to detect a second angular velocity, which is an angular velocity of the erecting prism, and a controller configured to control the actuator on the basis of the first angular velocity and the second angular velocity.

Anti-vibration optical device

An image stabilizer applicable to a monocular or binocular optical system. The stabilizer includes an erecting prism placed between an objective lens and an eyepiece to compensate for deterioration in a quality of an observed image caused by hands movement. The image stabilizer includes a gimbal suspension system having pivot shafts respectively extending to left and right sides of the optical axis of the optical system. The pivot shafts have a common pivot axis perpendicular to the optical axis. The gimbal suspension system has an erecting-prism holder supported by the pivot shafts, an angular velocity detector for detecting an angular displacement of the erecting prism, and a voice coil motor for pivoting the erecting-prism holder.

Image stabilizer

An image stabilizing device and system for a binocular telescope having a pair of telescopic optical systems each comprising an objective lens, a gimbal mounted erecting prism and an eyepiece lens which is capable of compensating for deterioration in quality of an observed image due to user hand shake or other external vibrations.

Image stabilizing device and system for telescopic optical instruments

An optical image stabilizer for a telescopic instrument having an objective lens, an erect prism, and an eyepiece lens arranged in this order which is capable of compensating for image deteriorations of an observed image due to external vibrations. The optical image stabilizer has a gimbal device mounted on a telescope housing, an external gimbal frame rotatably mounted on the gimbal casing, and an internal gimbal frame with the erect prism fixed thereto. Voice coil motors are provided for rotating the external and the internal gimbal frames. One of the voice coil motors has a coil disposed on the circuit board and a permanent magnet disposed on either one of the external and the internal gimbal frames oppositely to the coil. The remaining voice coil motor has a coil disposed on the circuit board and a permanent magnet disposed on the other gimbal frame oppositely to the coil.

Optical image stabilizer

A switch section of a sliding-type DIP switch includes a slider and a pair of opposing contacts each consisting of a resilient metal plate member and having a V-shaped urged portion and a linear portion connected to the urged portion. When the slider is slid, each opposing side wall thereof presses the distal end of the respective urge portion of one contact into contact with the linear portion of the other contact to achieve a reliable electrical switching action. A number of these contact pairs are integrated with the bottom portion of a housing by insert molding to facilitate fabrication.

Growing community of inventors

Kanagawa, Japan

Haruo Itoh