GB/T 20244-2025 Fiber optic elements for image transmission English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 37.020
CCS N 38
National Standard of the People's Republic of China
GB/T 20244-2025
Replaces GB/T 20244-2006
Fiber optic elements for image transmission
光学纤维传像元件
(English Translation)
Issue date: 2025-02-28 Implementation date: 2025-09-01
Issued by the State Administration for Market Regulation
the Standardization Administration of the People's Republic of China
Contents
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification, effective diameter and quality zone
5 Requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transportation and storage
Bibliography
Fiber optic elements for image transmission
1 Scope
This document defines the terms and definitions for fiber optic elements for image transmission, gives the classification, specifies the effective diameter and quality zone, requirements, inspection rules, and marking, packaging, transportation and storage, and describes the corresponding test methods.
This document is applicable to fiber optic elements for image transmission used in optoelectronic devices such as image intensifiers, image converters, intensified charge-coupled devices (ICCD) or complementary metal-oxide-semiconductor (CMOS).
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 191 Packaging - Pictorial marking for handling of goods
GB/T 903-2019 Colourless optical glass
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
GB/T 6388 Transport package shipping mark
GB/T 7962.14-2010 Test methods of colourless optical glass - Part 14: Resistance to acid
GB/T 9969 General principles for preparation of instructions for use of industrial products
GB/T 13384 General specifications for packing of mechanical and electrical product
GB/T 26597 Testing method of fiber optic devices for image transmission
3 Terms and definitions
The following terms and definitions apply for the purposes of this document, in addition to those given in GB/T 26597.
3.1
fiber optic elements for image transmission
functional element formed by arranging optical glass fibers according to certain rules, capable of transmitting images from the input end face to the output end face
3.2
fiber optic plate
functional element formed by arranging optical glass fibers according to certain rules, capable of transmitting images from the input end face to the output end face in equal proportion without changing direction
3.3
fiber optic inverter
functional element formed by arranging optical glass fibers according to certain rules, capable of inverting images 180° from the input end face and transmitting them to the output end face in equal proportion
3.4
fiber optic taper
functional element formed by arranging optical glass fibers according to certain rules, capable of magnifying or reducing images from the input end face and transmitting them to the output end face
3.5
effective diameter
actual working area of the optical fiber image transmission element, i.e., the diameter of the area where the optical fiber image transmission element is actually required to realize image transmission in optoelectronic devices
3.6
quality zone
different regions divided for optical fiber image transmission elements according to different effective diameters and quality control requirements
3.7
pitch of fiber
distance between the centers of two adjacent optical glass fibers
3.8
gross distortion
deviation displacement of the continuous curved line image formed by the transmitted straight line passing through the central axis relative to the central axis
3.9
frame run-out
overall displacement of the output image relative to the input image, based on the input image plane and its central axis as the reference
3.10
numerical aperture
numerical value measuring the light-gathering capacity of the end face of optical glass fibers
4 Classification, effective diameter and quality zone
4.1 Classification
Fiber optic elements for image transmission are classified according to different functions into:
a) Fiber optic plates (hereinafter referred to as FOP);
b) Fiber optic inverters (hereinafter referred to as inverters);
c) Fiber optic tapers (hereinafter referred to as FOT).
4.2 Effective diameter and quality zone
4.2.1 Effective diameter and quality zone for FOP
The effective diameter and quality zone for FOP are shown in Figure 1.
The effective diameters for FOP quality zones are given in Table 1.
4.2.2 Effective diameter and quality zone for inverters
The effective diameter and quality zone for inverters are shown in Figure 2.
The effective diameters for inverter quality zones are given in Table 2.
4.2.3 Effective diameter and quality zone for FOT
The effective diameter and quality zone for FOT are shown in Figure 3.
The effective diameters for FOT quality zones are given in Table 3
5 Requirements
5.1 Fiber optic plate
5.1.1 Pitch of fiber
The pitch of fiber shall not be greater than 6.0 μm.
GB/T 20244-2025 Fiber optic elements for image transmission English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 37.020
CCS N 38
National Standard of the People's Republic of China
GB/T 20244-2025
Replaces GB/T 20244-2006
Fiber optic elements for image transmission
光学纤维传像元件
(English Translation)
Issue date: 2025-02-28 Implementation date: 2025-09-01
Issued by the State Administration for Market Regulation
the Standardization Administration of the People's Republic of China
Contents
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification, effective diameter and quality zone
5 Requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transportation and storage
Bibliography
Fiber optic elements for image transmission
1 Scope
This document defines the terms and definitions for fiber optic elements for image transmission, gives the classification, specifies the effective diameter and quality zone, requirements, inspection rules, and marking, packaging, transportation and storage, and describes the corresponding test methods.
This document is applicable to fiber optic elements for image transmission used in optoelectronic devices such as image intensifiers, image converters, intensified charge-coupled devices (ICCD) or complementary metal-oxide-semiconductor (CMOS).
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 191 Packaging - Pictorial marking for handling of goods
GB/T 903-2019 Colourless optical glass
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
GB/T 6388 Transport package shipping mark
GB/T 7962.14-2010 Test methods of colourless optical glass - Part 14: Resistance to acid
GB/T 9969 General principles for preparation of instructions for use of industrial products
GB/T 13384 General specifications for packing of mechanical and electrical product
GB/T 26597 Testing method of fiber optic devices for image transmission
3 Terms and definitions
The following terms and definitions apply for the purposes of this document, in addition to those given in GB/T 26597.
3.1
fiber optic elements for image transmission
functional element formed by arranging optical glass fibers according to certain rules, capable of transmitting images from the input end face to the output end face
3.2
fiber optic plate
functional element formed by arranging optical glass fibers according to certain rules, capable of transmitting images from the input end face to the output end face in equal proportion without changing direction
3.3
fiber optic inverter
functional element formed by arranging optical glass fibers according to certain rules, capable of inverting images 180° from the input end face and transmitting them to the output end face in equal proportion
3.4
fiber optic taper
functional element formed by arranging optical glass fibers according to certain rules, capable of magnifying or reducing images from the input end face and transmitting them to the output end face
3.5
effective diameter
actual working area of the optical fiber image transmission element, i.e., the diameter of the area where the optical fiber image transmission element is actually required to realize image transmission in optoelectronic devices
3.6
quality zone
different regions divided for optical fiber image transmission elements according to different effective diameters and quality control requirements
3.7
pitch of fiber
distance between the centers of two adjacent optical glass fibers
3.8
gross distortion
deviation displacement of the continuous curved line image formed by the transmitted straight line passing through the central axis relative to the central axis
3.9
frame run-out
overall displacement of the output image relative to the input image, based on the input image plane and its central axis as the reference
3.10
numerical aperture
numerical value measuring the light-gathering capacity of the end face of optical glass fibers
4 Classification, effective diameter and quality zone
4.1 Classification
Fiber optic elements for image transmission are classified according to different functions into:
a) Fiber optic plates (hereinafter referred to as FOP);
b) Fiber optic inverters (hereinafter referred to as inverters);
c) Fiber optic tapers (hereinafter referred to as FOT).
4.2 Effective diameter and quality zone
4.2.1 Effective diameter and quality zone for FOP
The effective diameter and quality zone for FOP are shown in Figure 1.
The effective diameters for FOP quality zones are given in Table 1.
4.2.2 Effective diameter and quality zone for inverters
The effective diameter and quality zone for inverters are shown in Figure 2.
The effective diameters for inverter quality zones are given in Table 2.
4.2.3 Effective diameter and quality zone for FOT
The effective diameter and quality zone for FOT are shown in Figure 3.
The effective diameters for FOT quality zones are given in Table 3
5 Requirements
5.1 Fiber optic plate
5.1.1 Pitch of fiber
The pitch of fiber shall not be greater than 6.0 μm.
