WO2005074786A1 - 光ファイバ内蔵カメラ - Google Patents
光ファイバ内蔵カメラ Download PDFInfo
- Publication number
- WO2005074786A1 WO2005074786A1 PCT/JP2005/000481 JP2005000481W WO2005074786A1 WO 2005074786 A1 WO2005074786 A1 WO 2005074786A1 JP 2005000481 W JP2005000481 W JP 2005000481W WO 2005074786 A1 WO2005074786 A1 WO 2005074786A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical fiber
- housing
- fiber bundle
- camera
- built
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/07—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements using light-conductive means, e.g. optical fibres
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00174—Optical arrangements characterised by the viewing angles
- A61B1/00177—Optical arrangements characterised by the viewing angles for 90 degrees side-viewing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0615—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements for radial illumination
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2461—Illumination
- G02B23/2469—Illumination using optical fibres
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
- G02B23/2484—Arrangements in relation to a camera or imaging device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/555—Constructional details for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
Definitions
- the present invention relates to a camera having a built-in optical fiber.
- Fig. 11 shows a distal end portion of a conventional camera with a built-in optical fiber.
- the camera 101 has a cylindrical housing 103, in which an imaging element such as a CCD and an image processing circuit are housed.
- a photographing window 105 is provided on the side surface of the tip of the casing 103, and a prism is fitted into the photographing window 105.
- the light that enters through the shooting window 105 is bent by the prism and guided in the direction of the cylinder.
- emission windows 107 are arranged on both sides of the imaging window 105.
- FIG. 12 is a cross-sectional view of the camera shown in FIG. 11, in which an optical fiber component 109 is assembled in a housing 103 as shown.
- the optical fiber component 109 is an aggregate of thin fibers. A large number of fine fibers are bundled with the tip metal fittings 111, and are fixed with an adhesive, thereby forming a part having the illustrated shape.
- the optical fiber component 109 which is another component, is manually assembled in the housing 103.
- the optical fiber component 109 is inserted into the housing 103 from behind so that the tip metal fitting 111 advances to the back of the housing 103, and the tip metal fitting 111 is inserted into the emission window 107. It is located nearby.
- the illumination light is guided by the optical fiber component 109 and exits from the exit window 107.
- the conventional optical fiber built-in camera has an optical fiber component as a separate component bundled with a metal fitting. For this reason, it is not easy to mold parts using metal fittings, to incorporate parts, and to incorporate optical fiber parts into the housing.
- sapphire glass for waterproofing is fitted into the exit window 7, so that the light emitted from the optical fin is reflected by the sapphire glass. Therefore, the amount of light is reduced by the reflection.
- the present invention has been made under the above background, and an object of the present invention is to provide a camera with a built-in optical fiber, which is easy to manufacture and does not reduce the amount of light while ensuring waterproofness.
- a camera with a built-in optical fiber of the present invention includes a cylindrical housing having an exit window, and an integrated optical fiber bundle in which a light guiding optical fiber bundle is integrated on the inner surface of the housing.
- the one-piece optical fiber bundle is disposed on the inner surface of the housing, is adhered to each other with an adhesive, and is adhered to the inner surface, and the one-piece optical fiber bundle reaches the exit window and is exposed. I have.
- FIG. 1 is a cross-sectional view of a camera with a built-in optical fiber according to an embodiment of the present invention.
- FIG. 2 is a perspective view of a camera with a built-in optical fiber according to the embodiment of the present invention.
- FIG. 3 is a diagram showing a housing and an optical fiber of a camera with a built-in optical fiber according to the embodiment of the present invention.
- FIG. 4 is a diagram showing an optical fiber insertion step in the method for manufacturing a camera with a built-in optical fiber according to the embodiment of the present invention.
- FIG. 5 is a diagram showing a fiber bundle molding step in the method of manufacturing a camera with a built-in optical fiber according to the embodiment of the present invention.
- FIG. 6 is a diagram showing a fiber bundle molding step in the method of manufacturing a camera with a built-in optical fiber according to the embodiment of the present invention.
- FIG. 7 is a diagram showing a fiber bundle molding step in the method of manufacturing a camera with a built-in optical fiber according to the embodiment of the present invention.
- FIG. 8 is a view showing a polishing step of an exit window in the method of manufacturing a camera with a built-in optical fiber according to the embodiment of the present invention.
- FIG. 9 is a view showing a step of attaching a silicon tube in the method of manufacturing a camera with a built-in optical fiber according to the embodiment of the present invention.
- FIG. 10 is a diagram showing an insertion pipe cutting step in the method of manufacturing a camera with a built-in optical fiber according to the embodiment of the present invention.
- FIG. 11 is a perspective view showing a configuration example of a conventional camera with a built-in optical fiber.
- FIG. 12 is a cross-sectional view showing a configuration example of a conventional camera with a built-in optical fiber.
- the camera with a built-in optical fiber includes a cylindrical housing having an exit window, and an integrated optical fiber bundle in which a light guiding optical fiber bundle is integrated on the inner surface of the housing.
- the integrated optical fiber bundle is disposed on the inner surface of the housing, adhered to each other by an adhesive, and adhered to the inner surface, and the end of the integrated optical fiber bundle reaches the exit window and is exposed. ing.
- the above-described integrated fiber bundle is provided by integrally integrating the bundle of optical fibers on the inner surface of the housing, the optical fiber as a separate component bundled by the metal end is eliminated. Also, the work of assembling the optical fiber during assembly is reduced. Therefore, manufacturing becomes easy.
- sapphire glass as in the related art can be eliminated while ensuring waterproofness. Therefore, a decrease in the amount of light due to sapphire glass can be avoided. In this way, it is possible to provide a camera with a built-in optical fiber that is easy to manufacture and does not reduce the amount of light while ensuring waterproofness.
- the exposed surface of the integrated optical fiber bundle in the exit window and the surface of the surrounding casing have the same height.
- the camera with a built-in optical fiber has the above-described configuration, and as a result, it is possible to obtain the effect of easily manufacturing and avoiding a decrease in the amount of light while ensuring waterproofness as described above.
- Another embodiment of the present invention is a method for manufacturing a camera part with a built-in optical fiber. This method is also described in the present embodiment. According to this method, it becomes easier to manufacture the camera component with a built-in optical fiber, and an effect is obtained.
- FIG. 1 is a cross-sectional view showing a camera with a built-in optical fiber according to an embodiment of the present invention
- FIG. 2 is a perspective view of the appearance.
- the camera 1 has a cylindrical housing 3 which is a camera case made of stainless steel.
- the housing 3 houses an image sensor such as a CCD and an image processing circuit.
- An imaging window 5 is provided on the side of the front end of the housing 3.
- the shooting window 5 has a prism fitted therein. Light entering from the imaging window 5 is bent by the prism, guided in the cylinder direction (the longitudinal direction of the cylinder, the same applies hereinafter), and reaches the image sensor through the optical system.
- an emission window 7 is arranged on both sides of the imaging window 5.
- the housing 3 contains a bundle of optical fibers.
- the optical fiber is integrally formed on the inner surface of the bundle housing.
- This bundle of optical fibers is called an “integrated optical fiber bundle”.
- the diameter of one optical fiber is, for example, 30 micrometers. Therefore, the integrated optical fiber bundle 9 is composed of a very large number of optical fibers.
- the integrated optical fiber bundle 9 is disposed on the inner surface 11 of the housing 3 in a film shape.
- the integrated optical fiber bundle 9 is composed of a large number of thin optical fibers, and the optical fibers are bonded to each other by an adhesive and to the inner surface 11.
- the integrated optical fiber bundle 9 is divided into two halves corresponding to the two exit windows 7. Each half covers about half of the inner surface 11 of the housing 3.
- the integrated optical fiber bundle 9 is disposed in the casing 3 in the cylinder direction.
- the optical fiber bundle 9 is bent toward the exit window 7 at the front end in the housing 3.
- each optical fiber is actually bent.
- the cross-sectional shape of the integrated optical fiber bundle 9 changes. That is, the cross-sectional shape changes from the shape of the film along the inner surface of the housing 3 to a substantially rectangular shape along the emission window 7.
- the end 13 of the integrated optical fiber bundle 9 reaches the exit window 7 of the housing 3 and is exposed.
- the end 13 is filled with a number of optical fibers, and an adhesive is filled between the optical fibers. With such a configuration, waterproofness is ensured.
- the exposed surface (end surface) of the exposed portion 15 of the integrated optical fiber bundle 9 is surrounded by a housing surface 17 around the exposed surface. It is rare.
- the exposed surface (end surface) and the surrounding housing surface 17 are common processing surfaces. As a result, the exposed surface (end surface) and the surrounding housing surface 17 have the same height.
- FIG. 3 shows the housing 3 as a single component with the integrated optical fiber bundle 9 provided.
- the rear part 19 of the integrated optical fiber bundle 9 protrudes from the rear of the housing 3.
- the term “rear” refers to a direction in which the distal end force is separated along the cylinder direction of the housing 3.
- the integrated optical fiber bundle 9 is divided into two halves, and each half covers approximately half of the housing 3. Corresponding to such an arrangement, two rear parts 19 are also visible behind the housing 3. Each rear portion 19 is also formed into a film like the fiber inside the housing 3.
- the rear portion 19 is housed in another rear housing (not shown).
- the rear housing is connected to the housing 3 and has an outer diameter larger than the housing 3.
- the rear housing contains the board and the light source.
- the video cable extends to the rear of the housing.
- the part further behind the rear part 19 of the one-piece optical fiber bundle 9 is an unbonded optical fiber bundle 21 (the rear part 19 is called an intermediate part, and instead, is a part behind the rear part 19).
- the part may be called the rear part, and the part behind the rear part 19 may be called the tail part).
- the optical fiber bundle 21 is bundled with a silicon tube 23. Then, behind the silicon tube 23, the optical fiber bundle 21 is inserted into the insertion pipe 25. In the insertion pipe 21, the optical fiber bundle 21 that has been divided into two merges.
- a common polished surface of the insertion pipe 25 and the optical fiber bundle 21 is formed.
- the light emitted from the light source is guided by another optical fiber and then relayed at the rear end 27 of the insertion pipe 25. Then, the light is guided to the camera tip through the integrated optical fiber bundle 9 and is emitted from the emission window 7.
- the unbonded optical fiber bundle 21 is inserted into the housing 3.
- the diameter of the optical fiber is, for example, about 30 micrometers. Therefore, a very large number of optical fibers are inserted.
- Light The Aiba bundle 21 is inserted through the exit window 7 and exits through the rear opening 29 of the housing 3. At this time, each fiber of the optical fiber bundle 21 is bent inside the housing 3. Then, as shown in the figure, the optical fiber bundle 21 penetrates the housing 3 and protrudes from the emission window 7 and the rear opening 29.
- an adhesive is applied to a portion of the optical fiber bundle 21 to be integrated.
- the application area is an area corresponding to the above-described integral optical fiber bundle 9.
- the adhesive is also applied to the area corresponding to the rear part 19.
- the adhesive is, for example, a thermosetting silicone adhesive.
- the outer mold 33 is attached around the inner mold 31.
- the inner mold 31 is a rod-shaped member corresponding to the core.
- the inner mold 31 is inserted into the housing 3. In the inserted state, a gap is created between the inner surface 11 of the housing 3 and the inner die 31.
- the shape of the gap is a shape corresponding to the integrated optical fiber bundle 9 to be molded.
- An optical fiber bundle 21 coated with an adhesive is sandwiched in this gap.
- the inner mold 31 has a shape that is in close contact with the housing 3 in a region where the integrated optical fiber bundle 9 is not formed.
- the inner die 31 is positioned with respect to the housing 3 at the contact portion.
- the outer mold 33 has a cylindrical shape.
- the outer mold 33 is attached with the inner mold 31 inserted into the housing 3.
- the outer mold 33 is attached around the portion of the inner mold 31 that protrudes from the housing 3.
- the outer mold 33 has a two-part structure as shown, and the two halves are combined.
- the outer mold 33 creates a gap between the outer mold 33 and the inner mold 31.
- the shape of the gap is a shape corresponding to the rear portion 19 of the integrated optical fiber bundle 9.
- the optical fiber bundle 21 protruding backward from the housing 3 is sandwiched in this gap.
- the inner mold 31 and the outer mold 33 are in close contact with each other on the upper and lower parts.
- the optical fiber bundle 21 does not enter these contact portions. This also corresponds to the above-described two-part rear portion 19 configuration.
- the adhesive is cured while inner mold 31 and outer mold 33 are mounted. For example, curing is performed at a temperature of 80 ° C for 2 hours. Then, as shown in FIG. 7, the outer mold 33 and the inner mold 31 are removed after hardening.
- the optical fiber bundle 21 is adhered in a film shape along the inner surface 11 of the housing 3 to form an integrated optical fiber bundle 9 integrated with the housing 3.
- the rear part 19 of the integrated optical fiber bundle 9 is also formed into a film by being sandwiched between the inner mold 31 and the outer mold 33. Being typed. The rear part 19 protrudes from the rear of the housing 3. Behind the rear portion 19, the adhesive has not been applied, so the fiber remains free in the free state.
- the optical fiber bundle 21 protruding from the exit window 7 is deleted by processing.
- the optical fiber bundle 21 is cut leaving about 2 mm of end force. Then, this 2 mm portion is removed by polishing.
- the polishing step the optical fiber bundle 21 is polished together with the housing surface 17 around the exit window 7. As a result, the exposed portion 15 of the end portion 13 of the integrated optical fiber bundle 9 becomes a surface having exactly the same height as the surrounding housing surface 17.
- the casing 3 is subjected to blasting.
- an unbonded optical fiber bundle 21 remains behind the rear portion 19 of the integrated optical fiber bundle 9.
- the optical fiber bundle 21 in this portion is passed through a silicon tube 23 and bundled.
- the silicon tube 23 bundles the optical fiber bundle 21 in a circular shape by contraction by heat.
- the optical fiber bundle 21 is inserted into the insertion pipe 25 and bonded. With this insertion pipe 25, the optical fiber bundle 21 that has been divided into two branches merges into one. Then, the rear end 27 of the insertion pipe 25 is polished together with the inner optical fiber bundle 21.
- the optical fiber is integrated with the housing 3.
- the prism is fitted into the photographing window 5 of the housing 3.
- another housing (see FIG. 2) at the rear is connected to the housing 3.
- various components such as an image sensor, a board, a light source, and a video cable are assembled, and the camera 1 is completed.
- the camera 1 with a built-in optical fiber of the present embodiment is provided with the integrated light guiding optical fiber bundle 9 for light guiding integrated on the inner surface of the housing.
- the bundled optical fiber as a separate component can be eliminated. Also, the work of assembling optical fibers during assembly is reduced. Therefore, manufacturing becomes easy. Further, the end of the integrated optical fiber bundle 9 is directly exposed from the emission window 7 of the housing 3. Therefore, the conventional sapphire glass can be eliminated while ensuring waterproofness. In addition, it is possible to avoid a decrease in the light amount caused by the sapphire glass. In this way, it is possible to provide the camera 1 with a built-in optical fiber that is easy to manufacture and does not reduce the amount of light while ensuring waterproofness.
- a bundle of optical fibers is arranged and adhered to the inner surface of the housing in a film form. Since the optical fiber does not take up space, it is also advantageous for miniaturization and can contribute to a reduction in the diameter of the camera.
- the exposed surface of the integrated fiber bundle 9 in the exit window and the surface of the surrounding casing have the same height, A configuration in which the end of the integrated optical fiber 9 is exposed from the housing can be easily provided. In the above example, both sides are processed simultaneously.
- the method of manufacturing the camera with a built-in optical fiber and its components has also been described.
- Another embodiment of the present invention is a method for manufacturing such a camera with a built-in optical fiber or components thereof.
- the inner mold is used, and the integrated optical fiber bundle is suitably formed.
- the optical fiber bundle as a separate component bundled by the tip metal fitting can be abolished.
- the work of assembling the optical fiber during assembly is reduced. Therefore, manufacturing becomes easy.
- the present invention has an effect that manufacturing is easy and a decrease in light amount can be avoided while ensuring waterproofness, and is useful as a camera for dentists and the like.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Radiology & Medical Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/597,216 US7522796B2 (en) | 2004-02-05 | 2005-01-17 | Camera integral with optical fiber |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-029181 | 2004-02-05 | ||
JP2004029181A JP4423056B2 (ja) | 2004-02-05 | 2004-02-05 | 歯科医用の光ファイバ内蔵カメラ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005074786A1 true WO2005074786A1 (ja) | 2005-08-18 |
Family
ID=34835943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/000481 WO2005074786A1 (ja) | 2004-02-05 | 2005-01-17 | 光ファイバ内蔵カメラ |
Country Status (4)
Country | Link |
---|---|
US (1) | US7522796B2 (ja) |
JP (1) | JP4423056B2 (ja) |
CN (1) | CN100423681C (ja) |
WO (1) | WO2005074786A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009025659A1 (de) * | 2009-06-17 | 2010-12-23 | Karl Storz Gmbh & Co. Kg | Endoskoprohr |
AT510554B1 (de) * | 2011-03-18 | 2012-05-15 | A Tron3D Gmbh | Vorrichtung zum aufnehmen von bildern von dreidimensionalen objekten |
CN102488565B (zh) * | 2011-11-18 | 2013-12-25 | 南京春辉科技实业有限公司 | 牙科用刚性异型微结构光纤棒 |
US10537226B2 (en) * | 2013-12-23 | 2020-01-21 | California Institute Of Technology | Rotational scanning endoscope |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08332170A (ja) * | 1995-06-08 | 1996-12-17 | Matsushita Electric Ind Co Ltd | ビデオスコープ |
JP2002136473A (ja) * | 2000-11-02 | 2002-05-14 | Fuji Photo Optical Co Ltd | 体腔内観察装置及びそのライトガイド装着方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3818902A (en) * | 1971-07-03 | 1974-06-25 | Olympus Optical Co | Endoscope assembly having its optical system provided with a direction shifter |
US4669467A (en) * | 1985-03-22 | 1987-06-02 | Massachusetts Institute Of Technology | Mode mixer for a laser catheter |
US4648892A (en) * | 1985-03-22 | 1987-03-10 | Massachusetts Institute Of Technology | Method for making optical shield for a laser catheter |
JPH0452614A (ja) * | 1990-06-20 | 1992-02-20 | Olympus Optical Co Ltd | 内視鏡 |
US6692431B2 (en) * | 2001-09-07 | 2004-02-17 | Smith & Nephew, Inc. | Endoscopic system with a solid-state light source |
-
2004
- 2004-02-05 JP JP2004029181A patent/JP4423056B2/ja not_active Expired - Fee Related
-
2005
- 2005-01-17 WO PCT/JP2005/000481 patent/WO2005074786A1/ja active Application Filing
- 2005-01-17 US US10/597,216 patent/US7522796B2/en not_active Expired - Fee Related
- 2005-01-17 CN CNB2005800039763A patent/CN100423681C/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08332170A (ja) * | 1995-06-08 | 1996-12-17 | Matsushita Electric Ind Co Ltd | ビデオスコープ |
JP2002136473A (ja) * | 2000-11-02 | 2002-05-14 | Fuji Photo Optical Co Ltd | 体腔内観察装置及びそのライトガイド装着方法 |
Also Published As
Publication number | Publication date |
---|---|
CN100423681C (zh) | 2008-10-08 |
JP4423056B2 (ja) | 2010-03-03 |
JP2005218614A (ja) | 2005-08-18 |
US20080253724A1 (en) | 2008-10-16 |
CN1913823A (zh) | 2007-02-14 |
US7522796B2 (en) | 2009-04-21 |
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