Canon Kabushiki Kaisha

Matsushita Electric Industrial Co., Ltd.

Hirotake Ando

Hisatoshi Baba

Shinji Sakai

Osamu Koyama

Kenji Tamaki

Masayuki Usui

Yoshihiko Watanabe

Hideo Nakajima

Tadashi Kato

Nobuyuki Tonegawa

Yutaka Ogasawara

Akira Miyashita

Tsuguhide Sakata

Tsutomu Shimada

Akinori Hashiguchi

Michiie Sakamoto

Shinobu Masuda

Yasumori Hino

Yasuyuki Miyaoka

Kenzo Ishibashi

Kazuhiko Kato

Yoshihiro Saga

Tsukasa Ogino

Akihiro Sakai

Seiyo Aizu

A microscope system includes a microscope body, a camera connected to an observation optical system of the microscope body, and an XY stage on which a slide of an observation object is placed and which is configured to move in an X-axis direction and a Y-axis direction that are orthogonal to each other. The XY stage includes an XY two-dimensional scale plate. The XY two-dimensional scale plate includes a first mark configured to provide X-axis direction axis information and Y-axis direction axis information of the stage, and a second mark which is provided within an observable region of the camera on the same plane as the first mark and which is available for recognizing a position of an XY plane of the first mark in a Z-axis direction at each of a plurality of points by focus detection of the camera.

Microscope system

A stage apparatus comprises an incremental scale fixed to a movable unit and having a predetermined length shorter than a distance the movable unit can move in a first direction, a first and a second sensor that are arranged in the first direction with an interval therebetween shorter than the predetermined length, and a detection unit that detects an origin point position set in a movable range of the movable unit. In an origin return, if the movable unit is at a position at which both the first sensor and the second sensor can read the scale, the apparatus moves the movable unit to the origin point position by a predetermined distance, then moves the movable unit at a lower speed until the origin point position is detected.

Stage apparatus, method of controlling stage apparatus, and microscope system

A microscope system includes an observation optical system including an objective lens, an XY stage capable of moving an XY plane in an X-axis direction and an Y-axis direction, a first change unit configured to change a slant of the XY plane with respect to an optical axis direction of the objective lens, and a second change unit configured to change a slant of a slide placed on the XY stage with respect to the XY plane. Changing the slant of the XY plane by the first change unit is performed based on a first mark arranged on the XY plane at a position observable by the observation optical system. Changing the slant of the slide with respect to the XY plane by the second change unit is performed based on a second mark arranged on the slide.

Microscope system and method of controlling the same

A medical image processing apparatus comprises an image information processor that generates image information for acquiring a superposed image having a three-dimensional image of a medical device over a three-dimensional image of a preoperative structure of an object to which the medical device is inserted, and outputs the image information of the superposed image to a display apparatus.

Medical image processing apparatus generating a three-dimensional image of a medical device superposed over a three-dimensional image of a preoperative structure of an object

An optical deflection apparatus including a light source; an optical deflector including first and second oscillators and first and second torsion springs, the first torsion spring connecting the first and second oscillators, the second torsion spring being connected to the second oscillator, and the first and second torsion springs sharing a common torsion axis; and a driver that applies a driving force to the optical deflector; and a driving controller that supplies a driving signal to the driver. The driving controller sets a reference frequency on the basis of a resonant frequency of the optical deflector, calculates a target time at which one of the first and second oscillators makes a predetermined deflection angle on the basis of the reference frequency, and supplies such a driving signal that the one of the first and second oscillators passes through a point corresponding to the predetermined deflection angle at the target time.

Optical deflection apparatus, image forming apparatus, and method of driving optical deflection apparatus

Provided is an information recording apparatus having a mode SW for selecting a first mode of starting photographing after operations of a unit for detecting whether or not there is a disk and a unit for detecting remaining recording capacity of the disk when an instruction is given to start photographing through a photographing SW, or a second mode of starting photographing and operating a unit for detecting whether or not there is a disk and a unit for detecting the remaining recording capacity of the disk when the instruction is given to start the photographing through the photographing SW. The information recording apparatus is convenient in that stress given to a user in a case where the photographing cannot be performed immediately or data cannot be recorded even though photographing has started can be suppressed to a minimum.

Information recording apparatus having plurality of start modes

In a CLV(constant linear velocity) or MCLV(substantially constant linear velocity)-type optical disk apparatus, instability of servo at inner and outer circumferences of an optical disk is prevented by adjusting a servo-loop gain of tracking servo control or focus servo control in accordance with the radial-direction position of an optical spot, i.e., in accordance with the rotation frequency of the optical disk.

Optical information reproducing apparatus having a servo control circuit

An optical disk is made of tracks that are magnetically separated from one another by scanning a focused light beam over lands between tracks at a predetermined power and annealing to lower the magnetic anisotropy of a magnetic layer on the lands, and is provided with a power testing region comprising one or more tracks for finding the predetermined annealing power at the location of at least one of the group consisting of a specific region within the data region, a region more to the inner side than the innermost track of the data region, and a region more to the outer side than the outermost track of the data region. Thus, an optical disk and a manufacturing method for the same can be provided that have a high recording density and with which annealing can be implemented in a short time and at the correct annealing width.

Optical disk and manufacturing method for the same

An information recording and/or reproducing apparatus for recording data onto and/or reproducing data from a recording medium by irradiating a light beam emitted from a light source onto a desired track of the recording medium through an optical system. The apparatus includes (i) a single processor for executing an input/output control of the data for the apparatus and a servo process of the light beam such that the input/output control of the data and the servo process of the light beam are alternately switched at a predetermined period, and (ii) an actuator for moving the light beam on the basis of the servo process of the processor. The precision of the servo process is changed so that the precision is increased when an amount of an external disturbance is large.

Information recording and/or reproducing method and apparatus in which a

An information recording and/or reproducing method and apparatus for effecting recording of data onto and/or reproducing of data from a recording medium by irradiating a desired track on the recording medium with a light beam emitted from a light source through an optical system. In the apparatus, a single processor executes an input/output control of the data for the apparatus and a power control of the light beam by interrupting the input/output control at every predetermined period. The processor inhibits the interrupt power control of the light beam in accordance with a predetermined situation.

An information recording and/or reproducing apparatus for recording data onto and/or reproducing data from a recording medium such as a magnetic disk, a magnetooptic disk, or the like by irradiating a laser beam emitted from a light source such as a semiconductor laser onto a desired track of the recording medium through an optical system, wherein the apparatus includes a single processor for executing an input/output control of data for the apparatus and a servo process of the laser beam by interrupting the servo process between the input/output control at every predetermined period. The processor switches a precision of the servo process in accordance with a predetermined situation such as a change in operating mode.

An optical data recording/reproducing apparatus includes a light-receiving unit for receiving a light beam which has passed through or is reflected by a recording medium, the light-receiving unit having a plurality of light-receiving areas which are disposed such that they can perform wavefront splitting on the single light beam when the light-receiving areas receive the light beam, a data signal sensing unit for obtaining a data signal on the basis of an output of at least one of the plurality of light-receiving areas, and a servo signal sensing unit for obtaining a servo signal on the basis of an output of at least one of the plurality of light-receiving areas. The light-receiving area used to obtain the data signal and the light-receiving area used to obtain the servo signal are different from each other.

Optical data recording/reproducing apparatus for producing data and

A reproducing apparatus for reproducing a signal by moving a record bearing medium and a reproducing head relative to each other is provided with a time base corrector for correcting the time base of the signal reproduced. The time base corrector is characterized in that the operating state thereof is changed from one state over to another according to whether or not the controlled movement of the medium and the head relative to each other is in a steady state.

Reproducing apparatus with time base corrector

An optical information recording and/or reproducing apparatus is arranged to record and/or reproduce information on or from a recording medium with a light beam. The apparatus includes a circuit for generating a focusing error signal of the light beam, a filter for filtering the focusing error signal, the attenuation factor of the filter being greater at a high frequency region, a circuit for selecting either a focusing error signal filtered by the filter or a focusing error signal not filtered by the filter in accordance with an operating mode of the apparatus, and a circuit for executing focusing control of the light beam, using the selected focusing error signal.

Optical information recording and/or reproducing apparatus capable of

Input/output processing of information is controlled in a magnetooptical disc apparatus for recording and/or reproducing the information on a magnetooptical recording medium by irradiating a desired track of the recording medium with a light beam via an optical system. The servo control of the light beam such as tracking servo control, focusing servo control or the like is performed by causing interruption in the input/output processing control. When the apparatus activates, a parameter in the servo control is set on the basis of a reproduction signal amplitude of the information with a change in state of the servo control and a parameter in signal processing of the information is set in accordance with a reproduction signal amplitude of the information corresponding to the set parameter for the servo control.

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Tokyo, Japan

Hirotake Ando