ES470567A1 - Photographic method for measuring the profile of the reference index of optical fibers (Machine-translation by Google Translate, not legally binding) - Google Patents

Photographic method for measuring the profile of the reference index of optical fibers (Machine-translation by Google Translate, not legally binding)

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Publication number
ES470567A1
ES470567A1 ES470567A ES470567A ES470567A1 ES 470567 A1 ES470567 A1 ES 470567A1 ES 470567 A ES470567 A ES 470567A ES 470567 A ES470567 A ES 470567A ES 470567 A1 ES470567 A1 ES 470567A1
Authority
ES
Spain
Prior art keywords
translation
machine
legally binding
google translate
optical fibers
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
Application number
ES470567A
Other languages
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Standard Electrica SA
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 Alcatel Espana SA, Standard Electrica SA filed Critical Alcatel Espana SA
Priority to ES470567A priority Critical patent/ES470567A1/en
Publication of ES470567A1 publication Critical patent/ES470567A1/en
Expired legal-status Critical Current

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  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Photographic method for the measurement of the refractive index profile of optical fibers characterized by the use of photographic negatives of the faces of an optical fiber suitably illuminated by a lambertian light source, an optical focusing system, a microscope device with a photomicrographic camera coupled and densitometric apparatus of the photographic negative. (Machine-translation by Google Translate, not legally binding)
ES470567A 1978-06-07 1978-06-07 Photographic method for measuring the profile of the reference index of optical fibers (Machine-translation by Google Translate, not legally binding) Expired ES470567A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES470567A ES470567A1 (en) 1978-06-07 1978-06-07 Photographic method for measuring the profile of the reference index of optical fibers (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES470567A ES470567A1 (en) 1978-06-07 1978-06-07 Photographic method for measuring the profile of the reference index of optical fibers (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES470567A1 true ES470567A1 (en) 1979-02-01

Family

ID=8476235

Family Applications (1)

Application Number Title Priority Date Filing Date
ES470567A Expired ES470567A1 (en) 1978-06-07 1978-06-07 Photographic method for measuring the profile of the reference index of optical fibers (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES470567A1 (en)

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990201