GB/T 26339-2010 English PDF

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GB/T 26339-2010: Ophthalmic optics and instruments -- Electro-optical devices for enhancing low vision
Status: Valid

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Basic data

Standard ID: GB/T 26339-2010 (GB/T26339-2010)
Description (Translated English): Ophthalmic optics and instruments -- Electro-optical devices for enhancing low vision
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: C32
Classification of International Standard: 11.040.70
Word Count Estimation: 7,790
Date of Issue: 2011-01-14
Date of Implementation: 2011-05-01
Quoted Standard: GB 9254; GB 9706.1; GB/T 14214; GB/T 17626.2; GB/T 17626.3; ISO 15004
Adopted Standard: ISO 15254-2002, MOD
Regulation (derived from): National Standard Approval Announcement 2011 No.117
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the electronic visual aids terminology and definitions, optical and mechanical requirements and test methods. This standard applies to the use of low vision electronic visual aids. This standard does not apply to optical visual aids.

GB/T 26339-2010: Ophthalmic optics and instruments -- Electro-optical devices for enhancing low vision

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Ophthalmic optics and instruments.Electro-optical devices for enhancing fur vision ICS 11.040.70 C32 National Standards of People's Republic of China Optics and equipment for electronic optics (ISO 15254..2002, MOD) 2011-01-14 release 2011-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard adopts the re-drafting method to modify ISO 15254..2002 "Ophthalmic Optics and Equipment Electronic Aids" (English version). The specific adjustments to the technical differences between this standard and ISO 15254..2002 are as follows. - the note in Chapter 1 of ISO 15254..2002 as the standard text; - adjust the contents of the appendix in ISO 15254..2002 to this standard "5.5 mechanical design"; --- replace GB 52522 with GB 9254; --- equivalent to the use of international standards GB 9706.1 instead of IEC 60601-1-1; --- with the use of international standards GB/T 14214 instead of ISO 12870; --- replace IEC 61000-4-2 with equivalent GB/T 17626.2 with international standard; --- Replace IEC 61000-4-3 with equivalent GB/T 17626.3-2006 with international standard. This standard is proposed by the Ministry of Civil Affairs of the People's Republic of China. This standard is nationalized by the National Standardization Technical Committee for the Rehabilitation and Special Equipment for Persons with Disabilities (SAC/TC148). The drafting of this standard. Hangzhou Beidi Technology Co., Ltd., China Disabled Persons Auxiliary Equipment Center, Zhejiang Province, disabled persons auxiliary equipment resources Center, National Rehabilitation Equipment Quality Supervision and Inspection Center. The main drafters of this standard. Chen Qiang, Chen Guang, Yu Juanjuan, Jiang Qingxiao, Li Xiang, Zhang Hongtao. Optics and equipment for electronic optics

1 Scope

This standard specifies the terminology and definition of electronic aids, optoelectronic and mechanical requirements and test methods. This standard applies to electronic vision devices for low vision users. This standard does not apply to optical aids.

2 normative reference documents

The terms of the following documents are cited by this standard and become the terms of this standard. Whichever is the date of the reference file, which is followed by all The amendments (not including corrigenda) or revisions do not apply to this standard, however, the parties that encourage the agreement under this standard are No use of the latest version of these files. For undated references, the latest edition applies to this standard. GB 9254 Radio disturbance limits and measurement methods for information technology equipment (GB 9254-2008, CISPR22..2006, IDT) GB 9706.1 Medical electrical equipment - Part 1. General requirements for safety (GB 9706.1-2007, IEC 60601-1-1, IDT) GB/T 14214 spectacle frames - General requirements and test methods (GB/T 14214-2003, ISO 12870, MOD) GB/T 17626.2 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test (GB/T 17626.2-2006, IEC 61000-4-2, IDT) GB/T 17626.3 Electromagnetic compatibility test and measurement technology Radio frequency electromagnetic radiation immunity test (GB/T 17626.3- 2006, IEC 61000-4-3, IDT) ISO 15004 ophthalmic instruments basic requirements and test methods (Ophthalmicinstruments-Fundamentalrequirements andtestmethods)

3 terms and definitions

The following terms and definitions apply to this standard. 3.1 Electronic vision device electro-opticallow-visiondevice Through the electronic imaging method, for the use of low vision devices. 3.2 Display size displayize Horizontal and vertical dimensions of the image display area. 3.3 Magnification displaymagnification Displays the ratio between the linear dimension of the image and the linear dimension of the object. 3.4 Resolution spatialresolution Under certain conditions, the system can distinguish the minimum distance between two points. 3.5 Object movement limit speed objectspeedlimit Does not cause the perceived resolution to decrease the maximum object movement speed. ......

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