Nikon Corporation

Kabushiki Kaisha Daini Seikosha

Tadashi Otani

Hidenori Miyamoto

Shigemasa Sato

Toru Kosaka

Masaru Muramatsu

Sueyuki Ohishi

Hiroyuki Tsuru

Hiroshi Meguro

Daiki Tsukahara

Yoshiaki Ohtsubo

Jun Matsushima

Hideya Inoue

Norikazu Yokonuma

Minoru Kato

Noriyasu Kotani

Kiyosada Machida

Tatsuo Amanuma

Toshio Sosa

Tomoki Nishimura

Keishi Urata

Hachiro Kanai

Isamu Nishida

Minoru Katoh

Kenji Yajima

An image blur compensation device including a mechanism that can effectively reduce the effects of noise which becomes a problem in image blur compensation devices which are used in still cameras, video cameras, and the like. Particularly, the noise becomes a problem during position detection using a position sensitive device. The image blur compensation device includes an image blur compensation optical system to compensate for image blur arising due to blurring motion of an optical device, a position detection unit to detect the position of the image blur compensation optical system, an image blur compensation drive unit to drive the image blur compensation optical system based on the detection result of the position detection unit, and a power supply circuit which performs power supply to the position detection unit and the image blur compensation drive unit by a switching step-up control. The image blur compensation device includes an inhibition device to inhibit the detection operation of the position detection unit in a fixed period in which the switching phase of the power supply circuit has changed.

Image blur compensation device with reduced noise effect mechanism

Apparatus such as a flexible printed circuit board (FPC) for coupling two electronic components that are configured to move relative to each other such as within a multi-part slide-open type camera, multi-part micro-scope, a scanner device, etc., that includes a first end configured to be coupled to a first electronic component, a flexible connecting member emanating from the first end, and a second end at which the connecting member terminates and which is used to connect the flexible connecting member to a second electronic component. The connecting member includes a component surface used to communicate electrical signals between the fist electronic component and the second electronic component. The flexible connecting member has a shape that permits it to extend and retract in directions substantially perpendicular to the component surface. The shape also permits the flexible connecting member to be maintained in a single plane when in a fully retracted state.

Apparatus for coupling electronic components within electronic devices such as cameras

A camera magnetic reader including a magnetic head body for contacting a film, which is being fed in a camera, through a magnetic touch surface, and a shield member for covering the magnetic head body from the front side of the camera. The magnetic head body has protruding surfaces that are exposed through the shield member so as to face the front side of the camera. The head touch surface is formed by grinding with reference to the protruding surfaces. The magnetic body is mounted in the camera with the protruding surfaces serving as contact surfaces for positioning the magnetic head body. The camera magnetic reader allows accurate positioning of the magnetic head.

Camera magnetic reader having shield member and grinding reference

A magnetic recording/reproducing apparatus of a camera, includes; a magnetic head having a single coil; a recording circuit that causes the magnetic head to record magnetic information on a film; a reproducing circuit that causes the magnetic head to reproduce magnetic information recorded on the film; and a disconnecting circuit that disconnects the recording circuit from the magnetic head during magnetic reproduction by the reproducing circuit.

Magnetic recording/reproducing apparatus of camera

A camera having a shielding device to prevent leaked magnetic flux generated by a drive motor from affecting magnetic information recorded on film in a camera in which a drive motor is provided within a winding spool. The shielding device includes an inner shielding member and an outer shielding member which shield magnetic flux from the drive motor, even if the intensity of the magnetic flux leaked from the motor fluctuates. The outer shielding member is made of permalloy B with a high maximum relative permeability, and is provided outside of a motor housing case for the drive motor. The motor housing case forms the inner shielding member, and is made of pure iron having a high saturated magnetic flux density. The leaked magnetic fluxes generated by the drive motor having a strong magnetic field intensity are shielded by the motor housing case while other leaked magnetic flux having a weak magnetic field intensity is shielded by the outer shielding member.

Camera having a magnetic flux shielding device

An image vibration reduction device for reducing an image vibration on an imaging surface includes a vibration reduction optical system movable to reduce the image vibration and constituting part of an imaging optical system, and a vibration reduction optical system displacement detector including a light-emission unit and a light-reception unit using an optical position detection element to optically detect a change in position of the vibration reduction optical system. The device also includes a light-emission amount automatic adjustment means for adjusting a light-emission amount of the light-emission unit at a predetermined time on the basis of an output from the light-reception unit.

Image vibration reduction device

There is disclosed an electric camera which comprises a switch for switching a state of the camera between a state out of use and a state in use, a driving member for shifting the position of a member to be driven to change its state between a state out of use and a state in use in accordance with the state switched by the switch, detection unit for detecting whether the member to be driven is shifted during an operation of the driving member, counter unit for starting counting when the driving member is started to operate upon switching by the switch, change-over unit for changing over a driving speed of the driving member from a first speed to a second speed which is lower than the first speed, and control unit for stopping the drive of the driving member when the counter unit counts a predetermined time, so that the camera can be used continuously when the photographing lens or the barrier is stopped due to external forces, etc., and then the cause thereof is removed, and battery consumption can be suppressed to the minimum.

Electric camera

An auto focusing apparatus in a camera comprises a detecting device for detecting the measured distance values of an object corresponding to a plurality of areas in a photographing image field, a first determining device for determining a first measured distance value which is the measured distance value of the shortest distance from the plurality of measured distance values detected by the detecting device, a comparing device for comparing the first measured distance value determined by the first determining device with a threshold value, a second determining device for determining the mean value of the plurality of measured distance values detected by the detecting device as a second measured distance value, and a driving device for driving a photo-taking lens on the basis of the first measured distance value when it is judged by the comparing device that the first measured distance value is smaller than the threshold value, and driving the photo-taking lens on the basis of the second measured distance value when it is judged by the comparing device that the first measured distance value is equal to or greater than the threshold value.

Auto focusing apparatus in a camera

A camera capable of operating in a red-eye prevention mode. The camera has an electronic flash device which is activated by a drive circuit in synchronization with the exposure. The electronic flash device also serve as a pre-light-emission device capable of performing pre-light-emission for the purpose of preventing red-eye effect. When it is judged from the photographing condition that red-eye effect may occur, a controller activates the electronic flash device to effect a pre-light-emission for reducing the size of pupils of eyes of a person to be photographed, before the main flashing which is executed in synchronization with the exposure.

Control device for preventing red-eye effect on camera

An automatic focus controlling apparatus for a camera can set a lens position in a focus detection impossible state on the basis of previously obtained information associated with a distance to an object. The apparatus comprises a memory means for storing a focus controlling signal, and lens drive controlling means for, when an inoperative signal is output, controlling to drive a photographing lens in accordance with lens position information, and for, when the focus controlling signal is output, controlling to drive the photographing lens to a focus controlling position in accordance with the focus controlling signal. When the focus controlling signal is detected, the photographing lens is driven to a focus controlling position in accordance with the detected information. When the inoperative signal is output, the photographing lens is driven in accordance with the focus controlling signal stored in the memory means.

Automatic focus controlling apparatus

An automatic focusing camera comprises a measuring device formed integrally with a camera housing, defining a distance measuring zone selectively extended in different directions, and adapted for producing information employed for focusing to an object contained in the extended distance measuring zone. A position detecting device for detecting the position of the camera housing, and a device for varying the extending direction of the distance measuring zone, in response to the position of the camera housing detected by the position detecting device.

Automatic focusing camera

In a camera system including an electronic flash apparatus, a main capacitor of the flash apparatus is charged for a predetermined time interval, in response to a preparatory operation such as a first stroke of a release button. During this time interval, operation of an automatic distance measuring device, an automatic exposure controlling device and an object luminance discriminating circuit is prevented. A warning device warns a photographer that the main capacitor is insufficiently charged. Several voltage detectors detect different voltage levels of the main capacitor and produce detection signals for inhibiting the operation of the warning device and/or preventing further charging of the main capacitor.

Growing community of inventors

Tokyo, Japan

Tadashi Otani