BS ISO 6760-2:2024 PDF

Optics and photonics. Test method for temperature coefficient of refractive index of optical glasses - Interferometric method

First page of standard BS ISO 6760-2:2024

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Title (English):

BS ISO 6760-2:2024

Optics and photonics. Test method for temperature coefficient of refractive index of optical glasses - Interferometric method

Document status:: Active
Format:: Electronic (PDF)
Publication date:: May 31, 2024
ICS:: 37.020
SKU:: BS ISO 6760-2:2024

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Abstract

1 Scope This document specifies a test method for the temperature coefficient of refractive index of optical glass using interferometry. Temperature changes in optical glass lead to changes in the optical path length. The change in optical path length can be measured with an interferometer using the number of cycles of light/dark change of the interference stripe. This document defines a test method to measure the amount of change in the refractive index when the temperature of the specimen is changed continuously. The intended temperature range for the specified measurement method is an arbitrary range. The intended wavelength range for the specified measurement method is 365 nm to 1 014 nm. The intended accuracy for the specified measurement method is within 1 × 10 -6 K -1 .

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BS ISO 6760-2:2024 PDF

Abstract

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Abstract

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