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GB/T 47243-2026Optics and photonics - Optical components - Test method for the geometric parameters of complex curved surfaces (English PDF)

光学和光子学　光学元件　复杂曲面光学元件几何参数测试方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

February 27, 2026

Implementation date

June 1, 2026

Scope

GB/T 47243-2026 is the English-translated version of 光学和光子学　光学元件　复杂曲面光学元件几何参数测试方法.

GB/T 47243-2026 is the Chinese standard "Optics and photonics - Optical components - Test method for the geometric parameters of complex curved surfaces". Its scope clause reads: This document describes the testing methods for the geometric parameters of complex curved surface optical elements.

This document applies to the preparation of composite optical materials such as various optical glass materials, optical crystal materials, silicon carbide ceramic materials, and metallic materials.

Measurement of geometric parameters such as profile dimensions, effective aperture, vertex radius of curvature, off-axis amount, eccentricity, and roll angle of complex surface optical elements. Its clauses include terms and definitions.

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Document preview — GB/T 47243-2026

National Standard of the People's Republic of China

ICS: 17.180.01
Classification: N 30

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1.Scope
2 Normative References
3.Terms and Definitions
4.Test Principles
5 Test conditions
6.Testing equipment
7.Test Steps
7.1 Outline Dimensions
7.2 Effective light transmission aperture
7.3 Vertex radius of curvature
7.4 Off-axis amount
7.5 Eccentricity
7.6 Roll angle
8 Test Report
Appendix A (Informative) Measurement Report of Geometric Parameters of Complex Curved Surface Optical Elements

1 Scope

This document describes the testing methods for the geometric parameters of complex curved surface optical elements.

This document applies to the preparation of composite optical materials such as various optical glass materials, optical crystal materials, silicon carbide ceramic materials, and metallic materials.

Measurement of geometric parameters such as profile dimensions, effective aperture, vertex radius of curvature, off-axis amount, eccentricity, and roll angle of complex surface optical elements.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 6380-2019 Statistical processing and interpretation of data - Identification and handling of outliers in Type I extreme value distribution samples

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Complex curved surface

Optical surfaces characterized by aspherical equations or freeform surface equations.

3.2 Profile dimensions

The shape and size of complex curved surface optical elements.

3.3 Effective aperture

The maximum actual aperture of a complex curved surface optical element, given by the system optical design results.

3.4 R0

The radius of curvature of a complex curved optical element at the vertex of the mirror surface.

3.5 off-axis displacement

The distance by which the center of the mirror of a complex curved optical element deviates from the rotationally symmetric optical axis.

3.6 off-center displacement

The distance by which the mirror of a complex curved optical element deviates from the rotationally symmetric optical axis in a direction perpendicular to the off-axis.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 6380-2019Statistical interpretation of data - Detection and treatment of outliers in the sample from typeIextreme value distribution

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