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  • BS EN ISO 15253:2000

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    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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    Ophthalmic optics and instruments. Optical devices for low-vision aids

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  17-02-2022

    Language(s):  English

    Published date:  15-11-2000

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Classification
       4.1 Magnifiers
       4.2 Telescopes - Distance vision
       4.3 Telescopes - Near-vision/telemicroscopes
       4.4 Telescopes - Adjustable
    5 Requirements
       5.1 Optical characteristics
       5.2 Materials and construction
    6 Environmental conditions of use
    7 Test methods
       7.1 General
       7.2 Equivalent power - Magnifiers
       7.3 Angular magnification - Telescopes
       7.4 Resolution test
       7.5 Determination of lateral variation of
            magnification
    8 Marking and instructions for use
       8.1 Marking
       8.2 Information to be provided by the manufacturer
    Annex A (informative) Determination of lateral variation of
            magnification
    Annex B (informative) List of equivalent terms

    Abstract - (Show below) - (Hide below)

    Applicable to optical devices specified by the manufacturer for use by visually impaired persons as optical low-vision aids. Defines mechanical and optical requirements and test methods for such devices, including optical devices with electrical components such as illuminators.

    General Product Information - (Show below) - (Hide below)

    Committee CH/172/6
    Development Note Supersedes BS 7522-1(1992), BS 7522-2(1993) and 98/562858 DC (05/2002) Reviewed and confirmed by BSI, June 2008. (05/2008)
    Document Type Standard
    Publisher British Standards Institution
    Status Withdrawn
    Superseded By
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 12870:2016 Ophthalmic optics Spectacle frames Requirements and test methods
    ISO 14889:2013 Ophthalmic optics — Spectacle lenses — Fundamental requirements for uncut finished lenses
    EN ISO 15004 : 1997 OPHTHALMIC INSTRUMENTS - FUNDAMENTAL REQUIREMENTS AND TEST METHODS
    ISO 15004:1997 Ophthalmic instruments Fundamental requirements and test methods
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