GB/T 43847-2024 in English

VALID

Optics and photonics—Spectral bands

Issued on:2024-04-25
Implemented on:2024-11-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
$156.00

Standard No:	GB/T 43847-2024
Document status:	VALID
Title in English:	Optics and photonics—Spectral bands
Title in Chinese:	光学和光子学光谱波段
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2024-04-25
Implemented on:	2024-11-01
ICS Classification:	37.020-Optical equipment
Chinese Classification:	N32-Magnifier and microscope
Professional Classification:	GB-National Standard
Related Keywords:	photonics spectral spectral bands vacuum ultraviolet new standard 1-100 semiconductor lithography vacuum ultraviolet
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《GB/T 43847-2024光学和光子学光谱波段》由TC103（全国光学和光子学标准化技术委员会）归口，主管部门为中国机械工业联合会。

Introduction

Interpretation of the core content of the standard

This standard is equivalent to ISO 20473:2007 and is the first to systematically divide the spectral bands in the field of optics and photonics in China. 1-100 Semiconductor lithography Vacuum ultraviolet (VUV) 100-190 Crystal scattering Vacuum ultraviolet (VUV) 100-190 Dry scattering Vacuum ultraviolet (VUV) 100-190 Dry scattering Vacuum ultraviolet (VUV) 100-190 Dry scattering Vacuum ultraviolet (VUV) 100-190 Dry scatteringSpace Exploration Deep Ultraviolet (DUV) 190-280 Sterilization Mid-Ultraviolet (UV-B) 280-315 Medical Treatment Near Ultraviolet (UV-A) 315-380 Fluorescence Detection

Key Technology Breakthrough

This standard clearly defines the visible light range as 380-780nm, where the UV-A upper limit is set at 380nm instead of the traditional 400nm, mainly based on:

Material properties: Resin lenses have a natural absorption inflection point at 380nm
Biological effects: The weighted damage coefficient of the 380-400nm band to the eye is less than 0.1
Industry compatibility: Coordinated with the ISO 13666 standard for sunglasses

Ophthalmic optics application case

A brand of blue light protection glasses adopts the UV-A limit of this standard, and achieves this through a 380nm cutoff filter:

Parameters	Old standard (400nm)	New standard (380nm)
Transmittance	82%	91%
Color shift index	ΔE=3.2	ΔE=1.8

Implementation suggestions

Testing equipment calibration: Spectrophotometer needs to be recalibrated according to the new band
Product labeling update: UV protection products should indicate "Comply with GB/T 43847-2024"
R&D direction adjustment: Focus on the transmission/reflection characteristics of 380nm interface materials

International standard comparison

Indicator	CIE standard	ISO 20473	This document
UV-A upper limit	400nm	Not specified	380nm
Scope of application	Lighting engineering	General	Optical instruments

More samples: DL/T 5154-2012 YD/T 3934-2021 JGJ 94-2008

Sample only — not a preview of GB/T 43847-2024

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