Canon Kabushiki Kaisha

Olympus Corporation

Toyo Seikan Kaisha, Ltd.

Ushio Denki Kabushiki Kaisha

Yoshihiko Watanabe

Shinji Sakai

Takeshi Ito

Osamu Koyama

Kenji Tamaki

Hisatoshi Baba

Hirotake Ando

Masayuki Usui

Hideo Nakajima

Tadashi Kato

Sadao Hirata

Masahiro Nishio

Masayuki Yoshida

Yoshiji Kanamoto

Tsutomu Negishi

Yoshio Kimura

Tsuneaki Kurumida

Yuichiro Yamasawa

Yoshinori Fujiwara

Yasuhiko Kenjo

Jiro Kojima

Reiko Igarashi

An endoscope observation method includes irradiating first and second narrowband light to an observation object. The first and second narrowband light have wavelengths at which absorbances of first and second characteristic substances related to a predetermined state of the observation object and contained in the observation object are mutually different. The method also includes performing imaging by use of reflected light of the first and second narrowband light from the observation object to obtain first and second image data, and forming a characteristic substance presence image regarding the presence of the first and second characteristic substance, on the basis of characteristic amounts of the first and second characteristic substances contained in the first and second image data.

Endoscope observation method and endoscope apparatus

An endoscope apparatus includes a scope including an imaging unit provided at a distal end of an insertion section to be inserted into an observation object, and a main body including a light source unit configured to emit illumination light that illuminates the observation object through the scope. The light source unit is configured to emit first narrow band light selected based on an absorption spectrum of a first characteristic substance, and second narrow band light selected based on an absorption spectrum of a second characteristic substance. The main body includes an image processing circuit configured to process image information acquired by the imaging unit. The endoscope apparatus also includes a display configured to display image information processed by the image processing circuit.

Endoscope apparatus for switching between one-substance observation mode and two-substance observation mode based on input of selection of desired observation mode

A light source system includes an illumination device configured to generate illumination light, and a light source module having a function of supplying light to the illumination device and configured to be detachably attached to the illumination device. The illumination device includes a first light source and a first storage configured to store characteristic information of the first light source. The light source module includes a second light source and a second storage configured to store characteristic information of the second light source. The illumination device includes a control circuit configured to determine a driving condition of at least one of the first and second light sources, based on the characteristic information of the first and second light sources.

Light source system, endoscope system, and light source control method

An endoscope apparatus configured to acquire an image of an observation object includes a light source unit and an imaging system. The light source unit is configured to emit first and second narrow band light selected based on absorption spectra of first and second characteristic substances, respectively. The imaging system is configured to separately acquire first and second images by the first and second narrow band light, respectively. The apparatus further includes a characteristic substance region extractor configured to extract a characteristic substance region related to the first characteristic substance on the first image and/or a characteristic substance region related to the second characteristic substance on the second image.

Endoscope apparatus

An endoscope includes an illuminator to emit illumination light comprised by narrow band lights different in wavelength from an end portion of the endoscope and an imager to image an observation object illuminated by the illumination light emitted from the illuminator. The illuminator includes a light quantity output adjuster to independently control the light quantity of each of the narrow band lights. The endoscope allows observation in three types of modes of a white light mode, a special light mode, and a hybrid mode. A spectral pattern of illumination light in the hybrid mode includes at least a part of a color region of a narrow band light included in the special light mode and is different from either of a spectral pattern of illumination light in the white light mode and a spectral pattern of illumination light in the special light mode.

Special light endoscope

In case a file is prepared by executing an application, the fee for the use of the application is charged according to whether such file is subjected to an output process. Thus the user of the application need not pay the fee for the use of the application for the mere preparation of the file by using the application.

Application charging system, information processing apparatus, and control method therefor and memory medium storing program therefor

In an electric filing apparatus, a document is read, and the read document is divided into blocks by a predetermined dividing number. Further, the divided block is divided into a partial image or partial character train, and a partial image or partial character train is extracted from a predetermined position every block. The extracted partial images or partial character trains are combined, thereby forming a reduced image smaller than an original image or character train. When selecting a document registered by the user, a list of the reduced images is displayed.

Reduced image forming method and apparatus

A workpiece stage of a resist curing device is devised in which a workpiece on which a resist has been applied is held on a workpiece stage by vacuum suction, in which the workpiece is irradiated with UV radiation with a simultaneous temperature increase, in which it is cooled after UV radiation and by which the resist is cured, the workpiece stage having heating and cooling arrangements, major warping of the carrier is avoided and reliable holding of the workpiece on the carrier surface by vacuum suction obtained by the carrier being made of an aluminum alloy or a copper alloy which meets the following condition:&#x3c3;/&#x3c3;3.1&#x3c3; labeling the thermal stress which is determined using the following formula:where E is Young's modulus (N/mm) at 200&#xb0; C., &#x3b1; is the coefficient of linear expansion (1/&#xb0; C.) at 200&#xb0; C. and &#x394;T is a temperature difference (&#xb0; C.) of 120&#xb0; C., and &#x3c3;is the fracture point at 200&#xb0; C.

Workpiece stage of a resist curing device

A plurality of windows are displayed on a display screen, and a file within one of the plurality of windows is specified by an input section. The one window having the specified file is displayed on the display screen in such a way that the size of the one window is reduced. When a window of a transfer destination is specified by the input section, the window of a transfer source is displayed as a window having the original size.

Information processing apparatus and method, which performs processing on a transfer-source window when a file is moved or copied

An optical information processing apparatus and method of correcting an offset of a tracking error signal. The apparatus includes an optical head for irradiating a light beam onto an optical recording medium, an objective lens, mounted on the optical head, for condensing the light beam onto the recording medium, a photodetector for receiving a light beam reflected by or transmitted through the recording medium and for generating a tracking error signal indicative of a positional deviation between the light beam irradiated position and a track, a tracking actuator for moving the objective lens in a direction intersecting the tracks and for causing the objective lens to vibrate in the vicinity of the center of the light beam, a tracking controller for driving the tracking actuator in accordance with the tracking error signal so as to correct the positional deviation, a measuring device for measuring an offset of the tracking error signal from an output of the photodetector when the objective lens is caused to vibrate in the vicinity of the center of the light beam and a correction device for correcting the offset of the tracking error signal on the basis of the offset measured by the measuring device.

Optical information processing method and apparatus including measuring

An optical information processing apparatus includes an optical head for irradiating a light beam onto an optical recording medium, an objective lens, mounted on the optical head, for condensing the light beam onto the recording medium, a photodetector for receiving a light beam from the recording medium and for generating a tracking error signal indicative of a positional deviation between a light beam irradiated position and a track, a tracking actuator for moving the objective lens in a direction intersecting tracks of the recording medium, a tracking controller for driving the tracking actuator in accordance with the tracking error signal so as to correct the positional deviation, a position detector for detecting a relative position of the objective lens with respect to the optical head in the direction intersecting the tracks, a measuring device for measuring a relationship between an offset of the tracking error signal and a position of the objective lens from the tracking error signal and an output of the position detector, a memory for storing the relationship measured by the measuring device and a correction device for correcting the offset of the tracking error signal in accordance with the stored relationship, in response to the position detector output signal.

Optical information processing apparatus in which the offset of a

An optical information processing apparatus includes a unit for scanning a track formed on an optical recording medium with a light beam, a tracking control unit for correcting a position shift between a radiation position of the light beam on the medium and the track, and an offset correction unit for automatically correcting an offset of the tracking control unit.

Optical information processing apparatus including a correction circuit

An information recording/reproducing method in which a recording area is divided into a plurality of zones in the radial direction of a disk so that the lengths of recording pits become the same in the entire recording area of the disk and the recording/reproduction of information is effected with the number of revolutions of the disk changed in each zone from the inner peripheral zone toward the outer peripheral zone. The method includes the step of effecting the recording or reproduction of the information without changing the number of revolutions if the amount of information to be recorded or reproduced is equal to or smaller than a predetermined amount when seeking is effected from a zone in which a recording/reproducing head is in a standby state to a different zone to effect the recording or reproduction.

Information recording/reproducing method

An optical information processing apparatus includes a light source for radiating a light beam onto an optical information recording medium. A first photosensor is provided for partially receiving the light beam emitted from the light source and generating an output, and a second photosensor is provided for receiving either a light beam reflected by the recording medium or a light beam transmitted through the recording medium and generating an output. A control circuit controls power of the light beam emitted from the light source using the output from the first photosensor, and a correction circuit automatically corrects linearity of the output of the first photosensor with respect to the power of the light beam emitted from the light source in accordance with the output from the second photosensor.

Optical information processing apparatus for correcting linearity of a

An optical information processing apparatus for irradiating a focused light beam to an optical recording medium to record and/or reproduce information. The apparatus includes a device for focus-controlling the light beam, a focus pull-in device for switching the focus control device from an inactive state to an active state, a device for moving an irradiation position of the light beam in a surface of the medium to effect tracking control, and a device for holding the light beam at a center of a movable range by the tracking control device, during the focus pull-in.

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Yokohama, Japan

Yoshihiko Watanabe