ISO 6760-2:2024 光学和光子学 光学玻璃折射率温度系数的试验方法 第2部分：干涉法

标准编号：ISO 6760-2:2024

中文名称：光学和光子学 光学玻璃折射率温度系数的试验方法 第2部分：干涉法

英文名称：Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method

发布日期：2024-05

标准范围

本文件规定了使用干涉法测定光学玻璃折射率温度系数的测试方法。光学玻璃中的温度变化导致光程长度的变化。光路长度的变化可以利用干涉仪使用干涉条纹的明暗变化的周期数来测量。本文件规定了测定试样的温度连续变化时折射率变化量的试验方法。指定的测量方法的预期温度范围是任意范围。指定测量方法的预期波长范围为365？nm到1？014？纳米。指定测量方法的预期准确度在1？×？10-6 K-1。

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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