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  • 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

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    Published date:  07-11-2002

    Publisher:  European Committee for Standards - Electrical

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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 projector 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)

    Specifies 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). Also applies to LCD panels or other fixed resolution imaging devices themselves that are used with overhead projectors.

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

    Committee CLC/TC 100X
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    VDI 3786 Blatt 5:2015-10 Environmental meteorology - Meteorological measurements - Radiation

    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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