WO2005114336A1 - ホログラム装置 - Google Patents
ホログラム装置 Download PDFInfo
- Publication number
- WO2005114336A1 WO2005114336A1 PCT/JP2005/008529 JP2005008529W WO2005114336A1 WO 2005114336 A1 WO2005114336 A1 WO 2005114336A1 JP 2005008529 W JP2005008529 W JP 2005008529W WO 2005114336 A1 WO2005114336 A1 WO 2005114336A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- light emitting
- light receiving
- substrate
- hologram
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 230000000149 penetrating effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/13—Optical detectors therefor
- G11B7/131—Arrangement of detectors in a multiple array
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/127—Lasers; Multiple laser arrays
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2286—Particular reconstruction light ; Beam properties
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
- G03H2001/2223—Particular relationship between light source, hologram and observer
- G03H2001/2231—Reflection reconstruction
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0932—Details of sprung supports
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0933—Details of stationary parts
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0935—Details of the moving parts
Definitions
- the present invention relates to a hologram device that records and reproduces information by irradiating a recording medium with a laser beam, and particularly relates to a hologram device in which a light emitting unit is arranged on a substrate of a light receiving unit.
- the hologram device is for writing, reading, and reproducing information on a recording medium in page units.
- Encoded page information is written as a pattern such as a change in refractive index on the recording medium.
- This pattern is a hologram formed by the interference between the object light and the reference light in the storage device.
- To read information from the recording medium only the reference light is made incident on the recording medium from the light emitting unit and diffracted by the hologram pattern.
- the written information can be reproduced by receiving light with a light receiving unit such as a CCD or a CMOS.
- a light receiving unit such as a CCD or a CMOS.
- the present invention has been made in view of the above problems, and has as its object to provide a hologram apparatus which is compact and can be read at high speed.
- a hologram device includes a light emitting unit that irradiates each of the holograms with light on a recording medium on which a plurality of holograms are formed, and outputs each of the hologram forces.
- a hologram device having a light receiving unit for receiving the emitted light,
- the light receiving section has a substrate on which a number of light receiving elements are arranged on the surface, and the light emitting section is integrated with the light receiving section by arranging a plurality of light emitting elements in an array on the substrate of the light receiving section. It is characterized in that it is configured in a specific manner.
- the hologram device includes a light-emitting unit that irradiates each of the holograms with light and a light-receiving unit that receives light emitted from each of the holograms, on a recording medium on which a plurality of holograms are formed.
- Hologram device having
- the light receiving unit is configured to have a substrate on which a number of light receiving elements are arranged on a surface, the substrate of the light receiving unit has a plurality of through holes, and the light emitting unit is coaxial with each of the through holes. By arranging the light emitting elements, the light emitted from the light emitting elements is applied to the holograms through the through holes.
- the substrate of the light receiving section has a plurality of penetrating sections
- the light emitting section has a light emitting element disposed in each of the penetrating sections, and the light emitting element is connected to the substrate The light receiving element is exposed on the surface on which the light receiving element is arranged.
- the substrate of the light receiving section is fixed to a drive unit for finely adjusting a relative position of the light emitting section disposed on the substrate with respect to the recording medium. It is configured with the features.
- the hologram device of the present invention by disposing the light emitting element on the substrate of the light receiving unit, the light receiving unit and the light emitting unit are integrally configured, so that the entire device can be made more compact.
- the light emitting portion by arranging a plurality of light emitting elements in an array, it is not necessary to move the light emitting portion corresponding to the position of each hologram, so that reading can be performed at high speed.
- the light-emitting elements are arranged coaxially with the plurality of through-holes provided in the substrate of the light-receiving section, so that the light-receiving section and the light-emitting section are arranged close to each other. Therefore, the whole apparatus can be made more compact.
- the light-emitting elements are respectively arranged in the penetrating portions of the substrate of the light-receiving section, and the light-emitting elements are exposed on the surface on which the light-receiving elements are arranged. Since the light emitting unit and the light emitting unit are integrally configured, it is easy to integrally manufacture the light receiving unit and the light emitting unit.
- V It can be corrected when the position of the recording medium is slightly shifted.
- FIG. 1 is a perspective view of a hologram device according to the present embodiment.
- FIG. 2 is a longitudinal sectional view of the hologram device according to the first embodiment.
- FIG. 3 is a plan view of the hologram device according to the first embodiment.
- FIG. 4 is a diagram showing a relationship between a hologram device and a drive unit according to the first embodiment.
- FIG. 5 is a longitudinal sectional view of a hologram device according to a second embodiment.
- FIG. 6 is a longitudinal sectional view of a hologram device according to a third embodiment.
- FIG. 1 is a perspective view of the hologram device 1 of the present embodiment
- FIG. 2 is a longitudinal sectional view of the hologram device 1 of the first embodiment
- FIG. 3 is a plan view of the hologram device 1 of the first embodiment
- FIG. 3 is a diagram showing a relationship between a hologram device 1 and a drive unit according to the first embodiment.
- the hologram device 1 includes a light-emitting unit 30 that irradiates each hologram 11 with reference light 34 to a recording medium 10 on which a plurality of holograms 11 are formed, And a light receiving unit 20 that receives the diffracted light 23 diffracted by the light source 11.
- the recording medium 10 can write information by forming interference fringes between the object light having the encoded page unit information and the reference light 34 as a hologram 11 on the recording layer. .
- the same light as the reference light 34 used to form the hologram 11 is incident on the recording medium 10.
- the incident light is formed on the recording medium 10 and diffracted by the hologram 11, and the information can be read by receiving the diffracted light 23 by the light receiving unit 20.
- the recording medium 10 in the present embodiment may be arranged in the hologram device 1 in advance, or may be inserted into a slot-type card.
- the light receiving section 20 in the present embodiment is shown in FIG. As described above, it is configured to have the substrate 22 on which a large number of light receiving elements 21 are arranged.
- the light receiving section 20 and the light emitting section 30 are integrally formed.
- the light receiving element 21 uses a CMOS image sensor
- the light emitting element 31 uses a surface emitting laser.
- the hologram device 1 can be made compact by integrally forming the light receiving unit 20 and the light emitting unit 30.
- the light receiving section and the light emitting section in the present embodiment can be formed at a time in one process, respectively, so that manufacturing is easy.
- each light emitting element 31 includes a lens 32 for converting the emitted light into parallel light.
- each light emitting element 31 and the hologram 11 formed on the recording medium 10 have a one-to-one relationship.
- Light emitted from each light emitting element 31 irradiates the corresponding hologram 11 and emits diffracted light 23.
- the hologram 11 formed on the recording medium 10 is made to have a donut-shaped force, and a portion corresponding to the light emitting element 31 is not filled with necessary information.
- the substrate 22 of the light receiving section 20 is fixed to a drive unit 40 for finely adjusting the relative position of the light emitting section 30 disposed on the substrate 22 with respect to the recording medium 10.
- the position of the recording medium 10 may be slightly deviated from a predetermined position due to an external impact on the hologram device 1, an arrangement error when disposing the recording medium 10, or an intervention of dust.
- the correction is performed by slightly moving the substrate 22 of the light receiving unit 20 by the drive unit 40.
- the drive unit 40 will be described in detail.
- the drive unit 40 includes a unit main body 41 formed in a frame shape as shown in FIG. 4, a first drive frame 42 accommodated inside the unit main body 41, and a first drive frame 42 accommodated inside the first drive frame 42.
- the substrate 22 of the light receiving section 20 is accommodated and fixed inside the second drive frame 43.
- the first drive frame 42 is operable in the X direction and the lock direction with respect to the unit body 41 via two minute drive elements 44 that extend and contract linearly in the X direction, respectively.
- An elastic body 45 is provided in each of the direction and the Y direction to provide resistance to the operation of the minute driving element 44.
- the minute driving element 44 expands and contracts by applying an electric field, and also has a force such as a piezo element.
- the elastic body 45 also provides a panel force, suspends the first drive frame 42 with respect to the cutout body 41, and stably operates the first drive frame 42. ing.
- the elastic body 45 is not limited to the panel panel, but may be another panel or rubber.
- the first drive frame 42 Since the two micro drive elements 44 are provided so as to expand and contract in the X direction, the first drive frame 42 is moved in the X direction with respect to the unit body 41 by simultaneously expanding and contracting the two by the same length. It can move linearly in the direction. Further, by providing a difference in the expansion and contraction of the two minute drive elements 44, the first drive frame 42 can be rotated relative to the unit body 41 in the lock direction.
- the second drive frame 43 can freely move in the ⁇ direction and the lock direction with respect to the first drive frame 42 via two minute drive elements 44 that linearly expand and contract in the ⁇ direction.
- elastic bodies 45 are provided in the X direction and the ⁇ ⁇ ⁇ ⁇ direction, respectively, to provide resistance to the operation of the minute driving element 44.
- the two micro drive elements 44 are provided so as to expand and contract in the ⁇ direction
- the two drive frames 43 are connected to the first drive frame 42 by simultaneously expanding and contracting the two by the same length.
- it can be operated linearly in the ⁇ direction. That is, with respect to the minute drive element 44 provided in the first drive frame 42, the minute drive element 44 of the second drive frame 43 is operated so as to operate the second drive frame 43 in a direction substantially perpendicular to the operation. Is provided.
- the second drive frame 43 can be rotated in the lock direction with respect to the first drive frame 42.
- the elastic body 45 is the same as that provided between the cut body 41 and the first drive frame 42, and suspends and stabilizes the second drive frame 43 with respect to the first drive frame 42. To be able to operate.
- the substrate 22 of the light receiving section 20 is inserted and fixed inside the second drive frame 43. Therefore, by mutually operating the first drive frame 42 and the second drive frame 43, the substrate 22 of the light receiving section 20 is moved in the X direction, the ⁇ direction, and the lock direction with respect to the unit body 41 and the recording medium 10. Can be operated. A reading method according to the present embodiment will be described.
- the light emitted by the light emitting section 30 is diffracted by the corresponding hologram 11. As shown in FIG. 3, the diffracted light 23 is irradiated around the light emitting elements 31 arranged on the substrate 22 of the light receiving section 20, respectively.
- the light-emitting element 31 does not emit light simultaneously with the adjacent light-emitting element 31, but emits light sequentially, thereby preventing the diffracted light 23 from overlapping.
- the diffracted light 23a diffracted by the hologram 11 corresponding to the light emitting element 31a emits simultaneously with the adjacent light emitting elements 31b and 31d
- the diffracted light 23b diffracted by the corresponding hologram 11 Overlaps with 23d. Therefore, first, the light emitting elements 31a, 31c, 31e emit light, and the light receiving section 20 receives the diffracted lights 23a, 23c, 23e diffracted by the corresponding hologram 11.
- the light emitting elements 31b, 31d, and 31f emit light, and the diffracted light 23b, 23d, and 23f diffracted by the corresponding hologram 11 are received, so that all the information can be read without the diffracted light 23 overlapping each other. Can be.
- Each light emitting element 31 and the hologram 11 have a one-to-one relationship.
- Each light emitting element 31 emits light sequentially and irradiates each hologram 11, and the light receiving unit 20 emits the diffracted light 23 from each hologram 11.
- the light receiving section 20 in the present embodiment includes a substrate 22 having a large number of light receiving elements 21 disposed on the surface thereof.
- the substrate 22 of the light receiving section 20 has a plurality of through portions 24.
- the light emitting section 30 has a substrate 33 on the surface of which a plurality of light emitting elements 31 are arranged in an array.
- the penetrating part 24 provided on the substrate 22 of the light receiving part 20 is provided at a position corresponding to each light emitting element 31.
- the substrate 22 of the light receiving section 20 and the substrate 33 of the light emitting section 30 are joined to each other, and the light emitting elements 31 are arranged in the respective penetrating sections 24, and each light emitting element 31 is exposed on the surface where the light receiving element 21 is arranged.
- the light receiving section 20 and the light emitting section 30 can be integrally configured. Thereby, the same as in the first embodiment The effect can be obtained.
- the light receiving unit 20 in the present embodiment includes a substrate 22 having a large number of light receiving elements 21 disposed on a surface thereof.
- the substrate 22 of the light receiving unit 20 has a plurality of through holes 25.
- the light emitting section 30 has a light emitting element 31 disposed coaxially with each through hole 25, and light emitted from each light emitting element 31 is applied to each hologram 11 through the through hole 25.
- the light receiving section 20 and the light emitting section 30 in the present embodiment are not integrated, they are arranged close to each other, so that substantially the same effects as in the first or second embodiment can be obtained.
- the application of the present invention is not limited to this embodiment, and can be variously applied within the scope of the technical idea.
- the number of light emitting elements 31 arranged in an array is not limited to the present embodiment, and may be larger or smaller.
- the order of light emission of each light emitting element 31 is not limited to this embodiment as long as the diffracted lights do not overlap each other in the light receiving unit, and may be any method.
- each light emitting element 31 as a variable wavelength light source, a plurality of information recorded by wavelength multiplexing can be read.
- the original hologram 11 becomes Since the holograms 11 are formed at positions corresponding to the light emitting elements 31, the plurality of holograms 11 having different information and each light emitting element 31 have a one-to-one relationship only by one-point alignment. Since multiple pieces of information can be read with only one point alignment, reading can be performed at high speed.
- the drive unit 40 is used for alignment between the light emitting element 31 and the hologram 11.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Holo Graphy (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/596,422 US20070223073A1 (en) | 2004-05-21 | 2005-05-10 | Hologram Apparatus |
EP05739193A EP1748328A4 (en) | 2004-05-21 | 2005-05-10 | HOLOGRAM DEVICE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004152135A JP2005331865A (ja) | 2004-05-21 | 2004-05-21 | ホログラム装置 |
JP2004-152135 | 2004-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005114336A1 true WO2005114336A1 (ja) | 2005-12-01 |
Family
ID=35428523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/008529 WO2005114336A1 (ja) | 2004-05-21 | 2005-05-10 | ホログラム装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070223073A1 (ja) |
EP (1) | EP1748328A4 (ja) |
JP (1) | JP2005331865A (ja) |
WO (1) | WO2005114336A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7821898B2 (en) * | 2006-12-08 | 2010-10-26 | Intel Corporation | Techniques to store and access information using a holographic medium |
JP2011161862A (ja) * | 2010-02-12 | 2011-08-25 | Fuji Xerox Co Ltd | 露光装置及び画像形成装置 |
DE102013103539B4 (de) * | 2013-04-09 | 2021-04-29 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Holografische Folie und Verfahren zur Herstellung derselben sowie Beleuchtungseinrichung und Hinterleuchtungseinrichtung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0371383A (ja) * | 1989-08-11 | 1991-03-27 | Nhk Spring Co Ltd | 情報記憶カードの識別構造とその方法と情報記憶カード |
JPH05246184A (ja) * | 1992-03-09 | 1993-09-24 | Seiko Instr Inc | 光読み取り装置 |
JPH06131511A (ja) * | 1992-10-21 | 1994-05-13 | Dainippon Printing Co Ltd | ホログラムを用いた確認方法および確認装置 |
JPH08248326A (ja) * | 1995-03-10 | 1996-09-27 | Olympus Optical Co Ltd | 立体視内視鏡 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3669521A (en) * | 1971-01-04 | 1972-06-13 | Ibm | Time sensed static beam holographic storage system |
US5007690A (en) * | 1989-03-21 | 1991-04-16 | Hughes Aircraft Company | Holographic data storage and retrieval system |
KR950704670A (ko) * | 1993-09-30 | 1995-11-20 | 가따다 데쯔야 | 공초점광학장치 |
-
2004
- 2004-05-21 JP JP2004152135A patent/JP2005331865A/ja not_active Withdrawn
-
2005
- 2005-05-10 US US11/596,422 patent/US20070223073A1/en not_active Abandoned
- 2005-05-10 WO PCT/JP2005/008529 patent/WO2005114336A1/ja not_active Application Discontinuation
- 2005-05-10 EP EP05739193A patent/EP1748328A4/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0371383A (ja) * | 1989-08-11 | 1991-03-27 | Nhk Spring Co Ltd | 情報記憶カードの識別構造とその方法と情報記憶カード |
JPH05246184A (ja) * | 1992-03-09 | 1993-09-24 | Seiko Instr Inc | 光読み取り装置 |
JPH06131511A (ja) * | 1992-10-21 | 1994-05-13 | Dainippon Printing Co Ltd | ホログラムを用いた確認方法および確認装置 |
JPH08248326A (ja) * | 1995-03-10 | 1996-09-27 | Olympus Optical Co Ltd | 立体視内視鏡 |
Also Published As
Publication number | Publication date |
---|---|
US20070223073A1 (en) | 2007-09-27 |
JP2005331865A (ja) | 2005-12-02 |
EP1748328A4 (en) | 2009-01-14 |
EP1748328A1 (en) | 2007-01-31 |
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