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    I.S. EN 61947-1:2002

    Current The latest, up-to-date edition.

    ELECTRONIC PROJECTION - MEASUREMENT AND DOCUMENTATION OF KEY PERFORMANCE CRITERIA - PART 1: FIXED RESOLUTION PROJECTORS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2002

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Definitions
    4 General requirements
    5 Light output measurement and specification
       5.1 Light output specifications
       5.2 Light output uniformity
       5.3 Contrast ratio
       5.4 Light transmission for fixed resolution projection
           systems: liquid-crystal imaging devices (LCD) used
           with an overhead projector (OHP)
       5.5 Small area contrast ratio for alternating black and
           white pixel lines
    6 Fixed resolution projectors characteristics
       6.1 Displayable format (IEC resolution)
       6.2 Aspect ratio
       6.3 Viewing angle (half/gain) specification for devices
           with an integral screen
       6.4 Input signal format compatibility
       6.5 Response time
       6.6 Colour measurements
       6.7 Number of colours
       6.8 Keystone correction
    7 Range of focus and image size
    8 Audio characteristics
    9 Light source specification
    10 Maximum acoustical noise level
    11 Power consumption
    12 Weight
    13 Dimensions
    14 Sync hierarchy - Recommended practice
    Annex A (normative) Figures
    Annex B (normative) Pattern generator specifications
    Annex C (informative) Considerations in formulating this
            standard
    Annex D (normative) Complete sample specification
    Annex E (informative) Conversion equations
    Annex F (informative) Possible causes of photometric
            measurement errors
    Annex G (informative) Photometer precision and veiling glare
    Annex H (informative) Light measuring devices
    Annex I (Informative) Figure of merit for projection display
            colour gamut
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines requirements for measuring and documenting key performance parameters for electronic projection systems with fixed resolution projectors in which the light source and projection/magnification optics are an integral part of the system (i.e. individual pixel light sources or matrix displays such as liquid crystal, DMD, plasma, or electro-luminescent panels).

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

    Development Note For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current

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

    IEC 61966-5:2008 Multimedia systems and equipment - Colour measurement and management - Part 5: Equipment using plasma display panels
    EN ISO 3741:2010 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for reverberation test rooms (ISO 3741:2010)
    EN 61947-2:2002 Electronic projection - Measurement and documentation of key performance criteria - Part 2: Variable resolution projectors
    EN 61966-4:2000 Multimedia systems and equipment - Colour measurement and management - Part 4: Equipment using liquid crystal display panels
    IEC 61947-2:2001 Electronic projection - Measurement and documentation of key performance criteria - Part 2: Variable resolution projectors
    EN ISO 7779:2010 Acoustics - Measurement of airborne noise emitted by information technology and telecommunications equipment (ISO 7779:2010)
    EN 61966-5:2009 Multimedia systems and equipment - Colour measurement and management - Part 5: Equipment using plasma display panels
    IEC 61966-4:2000 Multimedia systems and equipment - Colour measurement and management - Part 4: Equipment using liquid crystal display panels
    ISO 3741:2010 Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Precision methods for reverberation test rooms
    ANSI IT7.228 : 1990 AUDIOVISUAL SYSTEMS - LIQUID CRYSTAL IMAGING DEVICES FOR USE WITH OVERHEAD PROJECTORS - METHOD FOR MEASURING & REPORTING PERFORMANCE - CHARACTERISTICS & FEATURES
    ISO 9241-8:1997 Ergonomic requirements for office work with visual display terminals (VDTs) Part 8: Requirements for displayed colours
    ISO 7779:2010 Acoustics Measurement of airborne noise emitted by information technology and telecommunications equipment
    ISO 13406-2:2001 Ergonomic requirements for work with visual displays based on flat panels Part 2: Ergonomic requirements for flat panel displays
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