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FR2337876A1 - Light probe using viscous liquid at object interface - has central core providing point illumination and secondary source of ambient light - Google Patents

Light probe using viscous liquid at object interface - has central core providing point illumination and secondary source of ambient light

Info

Publication number
FR2337876A1
FR2337876A1 FR7700233A FR7700233A FR2337876A1 FR 2337876 A1 FR2337876 A1 FR 2337876A1 FR 7700233 A FR7700233 A FR 7700233A FR 7700233 A FR7700233 A FR 7700233A FR 2337876 A1 FR2337876 A1 FR 2337876A1
Authority
FR
France
Prior art keywords
light
sample
illumination
central core
viscous liquid
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.)
Withdrawn
Application number
FR7700233A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sterndent Corp
Original Assignee
Sterndent Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US05/647,365 external-priority patent/US4029391A/en
Application filed by Sterndent Corp filed Critical Sterndent Corp
Publication of FR2337876A1 publication Critical patent/FR2337876A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2848—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers having refractive means, e.g. imaging elements between light guides as splitting, branching and/or combining devices, e.g. lenses, holograms
    • 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
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2808—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Endoscopes (AREA)

Abstract

A relatively viscous light transmissive liquid material such as glycerine is applied to the solid end portion of a light conducting member. This enhances the optical coupling with a sample or object having an irregular and/or glossy surface to be optically examined. The light probe system has a test end with a tip for substantial abutment with a test area or test point of a sample. The tip provides point or primary illumination of the test point and a further source of general or secondary illumination is provided the sample annularly about the probe tip and test point so that upon illumination of the sample ambient lighting effects are simulated.
FR7700233A 1976-01-08 1977-01-06 Light probe using viscous liquid at object interface - has central core providing point illumination and secondary source of ambient light Withdrawn FR2337876A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/647,365 US4029391A (en) 1974-08-22 1976-01-08 Light probe and interface therefor

Publications (1)

Publication Number Publication Date
FR2337876A1 true FR2337876A1 (en) 1977-08-05

Family

ID=24596704

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7700233A Withdrawn FR2337876A1 (en) 1976-01-08 1977-01-06 Light probe using viscous liquid at object interface - has central core providing point illumination and secondary source of ambient light

Country Status (3)

Country Link
JP (1) JPS5286347A (en)
DE (1) DE2656028A1 (en)
FR (1) FR2337876A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592005A (en) * 1982-06-26 1984-01-07 Sumitomo Electric Ind Ltd Optical fiber for sensor
JPS6224215A (en) * 1985-07-25 1987-02-02 Fujikura Ltd Fiberscope

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947088A (en) * 1974-08-22 1976-03-30 Weber Dental Manufacturing Co. Interface for light probe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947088A (en) * 1974-08-22 1976-03-30 Weber Dental Manufacturing Co. Interface for light probe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/68 *

Also Published As

Publication number Publication date
JPS5286347A (en) 1977-07-18
DE2656028A1 (en) 1977-07-21

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Legal Events

Date Code Title Description
ST Notification of lapse