Abstract: An optical system of the present invention includes a storage unit which stores an operated position of an operation unit and a position of an optical member. When the power supply to the optical system terminates and then restarts, a control unit compares the stored operated position and the operated position detected by a first sensing unit upon restart. If they are different, the control unit controls a driving unit such that the position of the optical member detected by a second sensing unit can be a target position. If they are the same, the control unit controls the driving unit such that the position of the optical member detected by the second sensing unit can be the stored position of the optical member.

Abstract: A position sensing device is provided which can include a first sensing unit for outputting a detection signal periodically changing in accordance with the movement of an object, a second sensing unit for sensing a reference position of the object, and an arithmetic unit for determining position data corresponding to the position of the object based on the detection signals, where the position sensing device can determine the relative position of a lens unit.

Abstract: An optical apparatus, such as an image pickup apparatus, includes a detector configured to detect whether a manual aperture operation unit is operated by an amount greater than or equal to a predetermined amount during automatic aperture control. When an aperture fixing switch is operated or when the detector detects that the manual aperture operation unit is operated by an amount greater than or equal to the predetermined amount, automatic aperture control is disabled and manual aperture control is enabled.

Abstract: In an image pickup apparatus in which image stabilization is performed based on shake sensor and movement-vector-obtaining method which can perform accurate blur correction since shake components difficult to be detected by shake sensor can be detected by the movement-vector-obtaining method, the image blur due to high frequency vibration such as vehicle vibration cannot be corrected by the movement vector in low-frame-rate shooting since the detectable frequency band narrows in high frequency. Therefore, it is necessary to optimize the combination of blur information from the angular velocity sensor and from the movement vector, according to the frequency band detectable by the movement vector depending on change in frame rate. The combination ratio of blur correction based on blur information from angular velocity sensor, acceleration sensor and blur correction based on movement vector is determined depending on frequency detectable by the movement vector which inevitably changes depending on frame rate.

Abstract: An optical apparatus includes a zoom lens unit, a pan/tilt unit configured to at least one of pan the zoom lens unit and tilt the zoom lens unit, and a center-shift information storage portion configured to store a shift amount of an optical axis for every zooming position, and has a mechanism configured to correct a shift of the optical axis caused by zooming, by driving the pan/tilt unit by the shift amount of the optical axis stored in the center-shift information storage portion.

Abstract: An optical apparatus, such as an image pickup apparatus, includes a detector configured to detect whether a manual aperture operation unit is operated by an amount greater than or equal to a predetermined amount during automatic aperture control. When an aperture fixing switch is operated or when the detector detects that the manual aperture operation unit is operated by an amount greater than or equal to the predetermined amount, automatic aperture control is disabled and manual aperture control is enabled.

Abstract: A stereoscopic image-taking lens apparatus according to the present invention is attachable to an image-taking apparatus provided with an image-pickup element; wherein a shutter is changed over so that lights from the right and left optical paths are guided alternately to the image-pickup element at every predetermined time, so that parallax images are formed in time sequence on the image-pickup element. Furthermore, the stereoscopic image-taking lens apparatus sends a signal for inhibiting an image-taking operation in which the charge-storage time of the image-pickup element is longer than the predetermined time for changing over the shutter to the image-taking apparatus. Furthermore, the lens device sends a signal for changing the set allowance of a white balance to the image-taking apparatus.

Abstract: A position control apparatus (optical apparatus) is disclosed which is capable of preventing disadvantages caused by the absence of a dead band while achieving a required accuracy of positional control. The position control apparatus comprises a controller which controls the drive of an object (optical member) so that the position of the object, which detected by a position detector, moves closer to a target position. The controller has a control function which does not drive the object in a case where the difference between the position detected by the position detector and the target position is within a predetermined range, and changes the predetermined range according to control modes relating to the drive of the object.

Abstract: A stereoscopic image-taking lens apparatus according to the present invention is attachable to an image-taking apparatus provided with an image-pickup element; wherein a shutter is changed over so that lights from the right and left optical paths are guided alternately to the image-pickup element at every predetermined time, so that parallax images are formed in time sequence on the image-pickup element. Furthermore, the stereoscopic image-taking lens apparatus sends a signal for inhibiting an image-taking operation in which the charge-storage time of the image-pickup element is longer than the predetermined time for changing over the shutter to the image-taking apparatus. Furthermore, the lens device sends a signal for changing the set allowance of a white balance to the image-taking apparatus.

Abstract: An intermediate transfer sheet for use in an intermediate transfer type thermal transfer recording method comprising a support, and at least a release layer and a receptive/adhesive layer laminated on the support in this order, the release layer comprising an acrylic resin, a polyester resin and a joint agent.

Abstract: A position sensing device is provided which can include a first sensing unit for outputting a detection signal periodically changing in accordance with the movement of an object, a second sensing unit for sensing a reference position of the object, and an arithmetic unit for determining position data corresponding to the position of the object based on the detection signals, where the position sensing device can determine the relative position of a lens unit.

Abstract: An intermediate transfer sheet for use in an intermediate transfer type thermal transfer recording method comprising a support, and at least a release layer and a receptive/adhesive layer laminated on the support in this order, the release layer comprising an acrylic resin, a polyester resin and a joint agent.

Abstract: A stereoscopic image-taking lens apparatus according to the present invention is attachable to an image-taking apparatus provided with an image-pickup element; wherein a shutter is changed over so that lights from the right and left optical paths are guided alternately to the image-pickup element at every predetermined time, so that parallax images are formed in time sequence on the image-pickup element. Furthermore, the stereoscopic image-taking lens apparatus sends a signal for inhibiting an image-taking operation in which the charge-storage time of the image-pickup element is longer than the predetermined time for changing over the shutter to the image-taking apparatus. Furthermore, the lens device sends a signal for changing the set allowance of a white balance to the image-taking apparatus.

Abstract: A heat-sensitive transfer recording medium is disclosed which comprises a support having thereon a first ink layer and a second ink layer provided on the first ink layer, the first ink layer comprising a coloring agent and an epoxy resin, the second ink layer comprising a coloring agent and a polyester resin. The heat-sensitive transfer recording medium is advantageously used to form a printed image excellent in both scratch resistance and alcohol resistance on an image receptor comprising a polyester film or an image receptor comprising a substrate having thereon an image-receiving layer comprising a polyester resin.

Abstract: A thermal transfer printing medium is provided which includes a foundation, and a transfer layer provided on one side of the foundation and comprising a heat-meltable color ink layer, a heat-meltable transparent ink layer, a metal deposition layer and an adhesive layer which are stacked in that order from the foundation side. The thermal transfer printing medium is capable of forming print images in a color inherent to the color ink layer, free from the influences of the color of the image-receiving medium and the metal deposition layer serving as a hiding layer.