GB1290713A - - Google Patents
Info
- Publication number
- GB1290713A GB1290713A GB3864869A GB1290713DA GB1290713A GB 1290713 A GB1290713 A GB 1290713A GB 3864869 A GB3864869 A GB 3864869A GB 1290713D A GB1290713D A GB 1290713DA GB 1290713 A GB1290713 A GB 1290713A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lens element
- aug
- axis
- fibre bundle
- curved
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- A61B1/04—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 combined with photographic or television appliances
- A61B1/055—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 combined with photographic or television appliances having rod-lens arrangements
-
- 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
-
- 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
- A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
-
- 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
-
- 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
-
- 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
- G02B23/2446—Optical details of the image relay
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0087—Simple or compound lenses with index gradient
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Lenses (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
1290713 Light guides NIPPON SELFOC K K 10 Aug 1969 [10 Aug 1968, 21 Aug 1968(4), 26 Sept 1968 and 1 Oct 1968(2)) 38648/69 Heading G2J An image transmitting system comprises a lens element positioned at one end of an optical fibre bundle, the lens element having an axis of optical symmetry and a refractive index variation in planes transverse to the axis in accordance with the equation n = N (1-ar<SP>2</SP>) where N is the value of the index at the axis, n the value at a radial distance r, and a a positive or negative constant. In Fig. 5, a lens element 7 images an object P at Q at the input end of a spaced fibre bundle 8, but in Fig. 6 (not shown) the length of the lens element (9) is such as to allow the image to be formed at the end of the element, i.e. the element and the fibre bundle (10) are operated in contact. The lens element body may be curved, as in Fig. 9 (not shown), and the curvature may vary, as in Fig. 20(B) (not shown). In Fig. 27, an element 35 acts as the objective of a microscope a bundle of fibres 37 conveying light to an eyepiece 40; in this embodiment a further, curved, objective lens element 36 is operated in parallel, thereby giving a wide angle view. The values of N and a, and the actual cross-section of the element itself, may vary, as in Figs. 12, 13, 21 (not shown).
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5696868 | 1968-08-10 | ||
| JP6009868 | 1968-08-21 | ||
| JP6009968 | 1968-08-21 | ||
| JP6009768 | 1968-08-21 | ||
| JP6010068 | 1968-08-21 | ||
| JP7007568 | 1968-09-26 | ||
| JP7172568 | 1968-10-01 | ||
| JP7172268 | 1968-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1290713A true GB1290713A (en) | 1972-09-27 |
Family
ID=27572480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3864869A Expired GB1290713A (en) | 1968-08-10 | 1969-08-10 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE737210A (en) |
| DE (1) | DE1939478A1 (en) |
| FR (1) | FR2015446A1 (en) |
| GB (1) | GB1290713A (en) |
| NL (1) | NL162481C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2145921C2 (en) * | 1971-09-14 | 1982-05-06 | Günther Dr. 8022 Grünwald Nath | Device for material processing by means of a laser beam with a flexible light guide |
| DE2756989C2 (en) * | 1977-12-21 | 1983-01-05 | Fa. Carl Zeiss, 7920 Heidenheim | Optical system |
| US4853547A (en) * | 1987-08-17 | 1989-08-01 | Amoco Corporation | System for radiation detection using a graded index optic element |
| US6002829A (en) | 1992-03-23 | 1999-12-14 | Minnesota Mining And Manufacturing Company | Luminaire device |
| US5528720A (en) | 1992-03-23 | 1996-06-18 | Minnesota Mining And Manufacturing Co. | Tapered multilayer luminaire devices |
| DE69435173D1 (en) | 1993-12-21 | 2009-01-15 | Minnesota Mining & Mfg | Multilayer optical film |
| US6096375A (en) | 1993-12-21 | 2000-08-01 | 3M Innovative Properties Company | Optical polarizer |
| AU708412B2 (en) | 1995-06-26 | 1999-08-05 | Minnesota Mining And Manufacturing Company | Diffusely reflecting multilayer polarizers and mirrors |
-
1969
- 1969-08-02 DE DE19691939478 patent/DE1939478A1/en active Pending
- 1969-08-07 BE BE737210D patent/BE737210A/xx not_active IP Right Cessation
- 1969-08-08 NL NL6912153.A patent/NL162481C/en not_active IP Right Cessation
- 1969-08-10 GB GB3864869A patent/GB1290713A/en not_active Expired
- 1969-08-11 FR FR6927603A patent/FR2015446A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL162481B (en) | 1979-12-17 |
| FR2015446A1 (en) | 1970-04-24 |
| NL162481C (en) | 1980-05-16 |
| DE1939478A1 (en) | 1970-05-06 |
| BE737210A (en) | 1970-01-16 |
| NL6912153A (en) | 1970-02-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee | ||
| PCPE | Delete 'patent ceased' from journal |
Free format text: NO.4907,PAGE 906 |
|
| PE20 | Patent expired after termination of 20 years |