JPS5742005A - Hollow optical guide - Google Patents

Hollow optical guide

Info

Publication number
JPS5742005A
JPS5742005A JP11881180A JP11881180A JPS5742005A JP S5742005 A JPS5742005 A JP S5742005A JP 11881180 A JP11881180 A JP 11881180A JP 11881180 A JP11881180 A JP 11881180A JP S5742005 A JPS5742005 A JP S5742005A
Authority
JP
Japan
Prior art keywords
cupper
optical guide
hollow optical
contg
impregnated
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.)
Pending
Application number
JP11881180A
Other languages
Japanese (ja)
Inventor
Kazuhito Murakami
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP11881180A priority Critical patent/JPS5742005A/en
Publication of JPS5742005A publication Critical patent/JPS5742005A/en
Pending 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To almost completely absorb light and to prevent generation of signal noises by forming cupric oxide film of needle state at the inside of a hollow optical guide which consists of cupper or cupper alloys in the inside. CONSTITUTION:The inside of a hollow optical guide which consists of cupper or cupper alloy such as pure cupper, brass, cupper-plated steel or the like in the inside is subjected to anodic oxidation in an aqueous alkaline soln. And it is impregnated in an aqueous alkaline soln. contg. NaClO2 or Na2S2O8. And then it is impregnated in aqueous NH4OH soln. contg. Cu ions. By the above-described method and the like, a cupric oxide film of needle state is formed. By these methods, the film adhered closely is obtained. Whereby a hollow optical guide having the black and good absorptive film of, for example, <=1% reflectivity at 0.63mu wavelength is obtd.
JP11881180A 1980-08-28 1980-08-28 Hollow optical guide Pending JPS5742005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11881180A JPS5742005A (en) 1980-08-28 1980-08-28 Hollow optical guide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11881180A JPS5742005A (en) 1980-08-28 1980-08-28 Hollow optical guide

Publications (1)

Publication Number Publication Date
JPS5742005A true JPS5742005A (en) 1982-03-09

Family

ID=14745711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11881180A Pending JPS5742005A (en) 1980-08-28 1980-08-28 Hollow optical guide

Country Status (1)

Country Link
JP (1) JPS5742005A (en)

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