Olympus Optical Company, Ltd.

Masahide Kanno

Masahiko Sasaki

Katsuyuki Saito

Jun Hasegawa

Akinobu Uchikubo

Masao Uehara

Shinji Yamashita

Katsuyoshi Sasagawa

Shinichiro Hattori

Hisao Yabe

Keiichi Hiyama

Takeaki Nakamura

Takehiro Nakagawa

Jun Yoshinaga

Takeshi Yokoi

Kazunari Nakamura

Hiromasa Suzuki

Yutaka Takahashi

Yutaka Konomura

Shinichi Nishigaki

Atsushi Amano

Tadashi Kato

Yoshikazu Tojo

Shinichi Kato

Kenji Kimura

Takao Tsuruoka

Hiroki Hibino

Seiichi Hosoda

Toshiaki Nishikori

Atsushi Kidawara

Yuji Ikuno

Nobuyuki Matsuura

Akihiko Miyazaki

Kazuhiko Oozeki

Akira Kusumoto

Kazuhiko Ohzeki

Kazuhiko Ozeki

Shinichi Katoh

Akira Hasegawa

Kimihiko Nishioka

Akira Taniguchi

Fumiyuki Onoda

Tetsuo Nonami

Masakazu Nakamura

Takao Rokutan

Yoshinao Oaki

Koichi Matsui

Kiyoshi Tsuji

Koji Takamura

Akira Matsueda

Yasushi Namii

Hisayuki Harada

Kowji Tanikawa

Haruo Takeuchi

Akibumi Ishikawa

Yoshitaka Miyoshi

Kouji Tanikawa

Masaru Shiraiwa

Akihiko Yajima

Kenji Matsunaka

Akihiro Miyashita

Hideyuki Shoji

Shouichi Ieoka

Masami Fukuchi

Hiroyuki Yashima

Kenichiro Nimoda

Tadao Eto

Shin-ichiro Hattori

Yoshikazu Ichikawa

Shinichi Katou

Katuyoshi Sasagawa

Isao Hirosawa

An electronic endoscope apparatus serving as a frame sequential type imaging apparatus comprises an electronic endoscope for picking up an object, a CCU for driving and controlling the electronic endoscope and processing imaging signals originated from the electronic endoscope, and a high resolution monitor displaying video signals processed by the CCU. An imaging optical system is provided at the tip of the electronic endoscope to receive reflected light irradiated on an object. The imaging optical system is provided with specific wavelength optical path changing apparatus for shifting an optical path of reflected light of a predetermined wavelength range between an objective lens system and a CCD. The specific wavelength optical path changing apparatus is a plate glass which transmits frame sequential light reflected from an object through the objective lens system. A surface of the plate glass facing CCD is bisected in two and coated with a first transmission filter and second transmission filter having different transmission characteristics. From among R, G1, G2, and B regions, the first transmission filter transmits the light of R, G1, and B regions and the second transmission filter transmits the light of R and G2 regions. The second transmission filter shifts an optical axis of the transmitted light.

Frame sequential type imaging apparatus for obtaining high resolution

N lines of line-shaped light are projected onto the object by means of a measuring light projecting lens. The light carrying the image of the object is passed through the eyepiece lens 17 in an endoscope 6 and the auxiliary lens 30 in a measuring head 11 and split into two beamlets by a beam splitter 31, with one beamlet being focused at a position coinciding with the entrance end faces of measuring light's position detecting fibers 33(l) to 33(m). The line-shaped light images of the object thus formed in positions coinciding with the entrance end faces of measuring light's position detecting fibers 33(l) to 33(m) are scanned linearly by those linearly aligned fibers as they are oscillated and driven by a fiber scanner 36. The scanned line-shaped light images are then subjected to the necessary signal processing in a signal processor circuit 35 such as to measure the three-dimensional configuration of the object.

Apparatus for measuring three-dimensional configurations

A medical instrument interfacing apparatus including a video instrument for outputting a video signal on which the pattern information of at least one of a character and device is superimposed, a video signal transmitting apparatus for transmitting the video signal of the video instrument, a pattern discriminating apparatus for extracting the pattern information from the video signal transmitted from the video signal transmitting apparatus and a controlled instrument in which the signal of the pattern discriminating apparatus is input.

Combined medical image and data transmission with data storage, in which

An endoscope image recording apparatus comprises a video endoscope having, at a forward end of an inserting section, an image pickup element, for image-picking-up the interior of a body cavity or the like, an image control unit for signal-processing a picture signal from the video endoscope, to generate an image signal, a portable IC memory card for recording the image signal from the image control unit as image data, a digital audio tape (DAT), a monitor for displaying the image signal from the image control unit or image data recorded on the IC memory card or the DATA, and indication means for indicating control operation to the image control unit. The IC memory card and the DAT tape record a serial number of the image, an INDEX image of the image, patient data, and image data. The IC memory card records an ID number of the DAT tape, while the DAT tape records an ID number of the IC memory card.

Image information recording apparatus for recording a plurality of image

Arranged within a measuring-light generating unit of an endoscope apparatus for three dimensional measurement, according to the invention, are measuring means, a lamp for outgoing a normal illuminating light, and a laser for outgoing a measuring light. Connected to the measuring means is a signal line which is connected to a CCD. Further, an illuminating light outgone from the lamp is condensed by a condenser lens, and is incident upon an incident end surface of a light guide. Furthermore, the measuring light outgone from the laser is condensed by the condensing lens, and is incident upon the incident end surface of the image guide. Moreover, the incident end of the image guide is connected to scanning means formed by a piezo-electric element, a speaker (voice coil) or the like through a connecting element. The scanning means is operated whereby the incident end of the image guide is reciprocally moved in a direction perpendicular to an optical axis of the measuring light. The measuring light is a light having extension or spreading. However, a flux of light of the measuring light is extremely thin, and a spot light having minimum resolution that is a single glass fiber forming the image guide is projected onto the subject.

Endoscope apparatus for three dimensional measurement for scanning spot

An endoscope image data compressing apparatus comprises a plurality of image compressing apparatus not equivalent to each other for compressing input endoscope image data and outputting the compressed data and a selecting apparatus for selecting the compressed data output from at least one of the image compressing apparatus. The selecting apparatus selects the compressing method in response to the kind of the endoscope, characteristic of the image, picture quality of the compressed image, recording time intervals and others. A method for compressing endoscope image data is realized by an image compressing apparatus capable of compressing image data at different compressing rates. The endoscope image data is determined to be either ordinary image data or dyed image data and, based on this determination, is compressed at different rates. The compressing rate for dyed image data is lowered below the rate for ordinary image data.

Method of compressing endoscope image data based on image characteristics

In an electronic endoscope apparatus each of the signals of a plurality of systems output from at least one solid state imaging device is judged by a signal monitoring device as to whether it is normal or not. On the basis of the judged result, the processing mode corresponding to each of the signals of the plurality of systems is changed and each signal is processed. If an abnormality occurs, an observed image with which the endoscope inspection can continue will be secured to be safe. Further, in the electronic endoscope apparatus, when the output signal from the solid state imaging device is judged to be abnormal, the amount of illuminating light will be attenuated, the danger by the excessive amount of illuminating light will be avoided and the safety of the person being monitored will be secured.

Electronic endoscope apparatus with signal validity monitor

A medical network system has an image sending device for sending medical image information, such as endoscopic image information, an image receiving device for receiving the medical image information, a centralized control device having sending and receiving functions for centrally controlling the transmission of the medical image information among the above devices, and an analog transmission line for transmitting the medical image information among the devices at high speed. The centralized control device controls the transmission of the medical image information by using digital signals.

Medical network system with common analog information trasmission line

This invention provides an endoscope image data filing system comprising: a plurality of endoscope devices and a plurality of ultrasonic endoscope devices; an image data recording device which records a plurality of image information after reversibly and irreversibly compressing image signals received from the plurality of the endoscope devices and from the plurality of the ultrasonic endoscope devices; an image reproducing device (A) and an image reproducing device (B) for reproducing the image information recorded in the image data recording device; a large capacity data recording device which as required reads and writes the compressed image information recorded in the image data recording device; and a data communication device for performing communication between the image data recording device and an external host computer via a data input/output terminal device. In use of the endoscope image data filing system of the present invention, operators can manages the endoscope image data in various modes for a middle or long period. Thus, based on the patient history recorded in the endoscope image data filing system of the present invention, operators can make easily diagnosis on the patient.

Endoscope image data filing system and an endoscope image data managing

An endoscope image signal photoelectrically converted by an image sensing device in an endoscope is compressed by an image compressing apparatus and then recorded in a recording apparatus, whereby the number of image frames recordable in the recording apparatus can be increased. Also, the image compression is effectively performed, for example, by changing a compression ratio dependent on a quantity of respective image information contained in plural components of the endoscope image signal, whereby a quantity of information actually recorded can be reduced.

Endoscope image recording system for compressing and recording endoscope

This endoscope image data compressing apparatus comprises a plurality of image compressing apparatus not equivalent to each other for compressing input endoscope image data and outputting the compressed data and a selecting apparatus for selecting the compressed data output from at least one of the image compressing apparatus. The selecting apparatus selects in response to the kind of the endoscope, characteristic of the image, picture quality of the compressed image, recording time intervals and others.

Endoscope image data compressing apparatus

An endoscope apparatus is disclosed in which the horizontal transfer of the charge of a solid imaging device such as a CCD and the resetting for the detection of the charge are conducted by a common drive signal. The signal transmitted from the solid imaging device is caused to contain a feed-through period by making the drive signal to be served by a multi-valued level horizontal transfer signal exceeding a trinary value. Therefore, reset noise or the like can be eliminated by processing the output signal by using a correlated double sampling circuit or the like so that a video signal exhibiting a good S/N ratio can be obtained.

Electronic endoscope apparatus outputting ternary drive signal

An endoscope image filing apparatus wherein endoscope image information and search information required to search this image information are recorded in the same medium by a recording apparatus, on the other hand, medium discriminating information is imparted to this medium by an imparting apparatus and the search information and medium discriminating information are memorized in a controlling apparatus so that, in case there are many recording media, when the search information is input into the controlling apparatus, the medium discriminating information of the medium in which the search information is recorded may be obtained.

Endoscope image filing system

An endoscope apparatus is arranged to convert the image signal output from an imaging device into a standard video signal, effect image processing, such as outline emphasis, of the image signal, and display a reproduced image on a display. The endoscope apparatus has the function of stopping input to a memory circuit in accordance with the on action of a freezing switch, switching from a moving image to a still image, and providing a display of the still image. Accordingly, it is possible to select appropriate image processing characteristics in accordance with whether a moving image or a still image is to be displayed.

Electronic endoscope apparatus having different image processing

An endoscope light source apparatus which can feed an illuminating light adapted to a scope provided with a frame sequential type imaging device, a scope provided with a color mosaic type imaging device and a fiber scope has a light source lamp which can emit the illuminating light. A filter which can transmit the illuminating light is interposed in the light path connecting the light source lamp with the entrance end surface of a light guide capable of feeding the illuminating light to the scope and is provided within a cassette which is inserted through an inserting aperture provided on a housing containing the light source apparatus.

Endoscope light source apparatus

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Hachioji, Japan

Masahide Kanno