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  • IEC 61947-2:2001

    Current The latest, up-to-date edition.

    Electronic projection - Measurement and documentation of key performance criteria - Part 2: Variable resolution projectors

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English, English - French, Spanish, Castilian

    Published date:  17-09-2001

    Publisher:  International Electrotechnical Committee

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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 Blanking measurement and specification
       5.5 Effective blanking time
       5.6 Blanking specification
    6 Variable resolution projector characteristics
       6.1 Visual resolution measurement and specification
       6.2 Video frequency response specifications
       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 Keystone correction
    7 Range of focus and image size
    8 Audio characteristics
    9 Light source specification
    10 Noise: maximum sound level
    11 Power consumption
    12 Weight
    13 Dimensions
    14 Recommended practices
       14.1 Recommended practice 1 - Sync hierarchy
       14.2 Recommended practice 2 - DC restoration
       14.3 Recommended practice 3 - Sync
       14.4 Recommended practice 4 - Scan range labeling
    Annex A (normative) Figures
    Annex B (normative) Pattern generator specifications
    Annex C (informative) Considerations in formulating
            this standard
       C.1 General
       C.2 Light output measurement
       C.3 Visual resolution measurement
       C.4 Possible causes for measurement errors
       C.5 Input signal levels
    Annex D (normative) Complete sample specification
    Annex E (informative) Other issues, outside the scope
            of this standard, that may affect picture clarity
    Annex F (informative) Possible causes of photometric
            measurement errors
       F.1 Size of measured spot
       F.2 Colour measurement
    Annex G (normative) Alternative method for measuring
            resolution using the NIDL grille contrast method
    Annex H (informative) Photometer precision and veiling glare
       H.1 Photometer precision
       H.2 Integration time
       H.3 Veiling glare
    Annex I (informative) Light measuring devices
    Annex J (informative) Figure of merit for projection
            display colour gamut
    Bibliography
    Figures

    Abstract - (Show below) - (Hide below)

    IEC 61947-2:2001 specifies requirements for measuring and documenting key performance parameters for CRT and laser-based projectors and other variable resolution projectors that are capable of multiple variable resolutions and in which the image is raster-scanned. This bilingual version (2013-02) corresponds to the monolingual English version, published in 2001-09.

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

    Committee TC 100
    Development Note Stability Date: 2024. (11/2012) A Bilingual edition has been published. (03/2013)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current

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

    BS IEC 62906-5-2:2016 Laser display devices Optical measuring methods of speckle contrast
    UNI EN ISO 9241-305 : 2009 ERGONOMICS OF HUMAN-SYSTEM INTERACTION - PART 305: OPTICAL LABORATORY TEST METHODS FOR ELECTRONIC VISUAL DISPLAYS
    EN 61947-1:2002 Electronic projection - Measurement and documentation of key performance criteria - Part 1: Fixed resolution projectors
    BS EN ISO 9241-307:2008 Ergonomics of human-system interaction Analysis and compliance test methods for electronic visual displays
    I.S. EN ISO 9241-307:2008 ERGONOMICS OF HUMAN-SYSTEM INTERACTION - PART 307: ANALYSIS AND COMPLIANCE TEST METHODS FOR ELECTRONIC VISUAL DISPLAYS
    VDI 3786 Blatt 5:2015-10 Environmental meteorology - Meteorological measurements - Radiation
    14/30299433 DC : 0 BS EN 62906-1-2 - LASER DISPLAY DEVICES - PART 1-2: TERMINOLOGY AND LETTER SYMBOLS
    I.S. EN 61947-1:2002 ELECTRONIC PROJECTION - MEASUREMENT AND DOCUMENTATION OF KEY PERFORMANCE CRITERIA - PART 1: FIXED RESOLUTION PROJECTORS
    IEC 62906-5-2:2016 Laser display devices - Part 5-2: Optical measuring methods of speckle contrast
    EN ISO 9241-305:2008 Ergonomics of human-system interaction - Part 305: Optical laboratory test methods for electronic visual displays (ISO 9241-305:2008)
    UNI EN ISO 9241-307 : 2009 ERGONOMICS OF HUMAN-SYSTEM INTERACTION - PART 307: ANALYSIS AND COMPLIANCE TEST METHODS FOR ELECTRONIC VISUAL DISPLAYS
    DIN EN ISO 9241-305:2009-06 ERGONOMICS OF HUMAN-SYSTEM INTERACTION - PART 305: OPTICAL LABORATORY TEST METHODS FOR ELECTRONIC VISUAL DISPLAYS
    CEI EN 61947-1 : 2003 ELECTRONIC PROJECTION - MEASUREMENT AND DOCUMENTATION OF KEY PERFORMANCE CRITERIA - PART 1: FIXED RESOLUTION PROJECTORS (IEC 61947-1:2002)
    DIN EN ISO 9241-307:2009-06 ERGONOMICS OF HUMAN-SYSTEM INTERACTION - PART 307: ANALYSIS AND COMPLIANCE TEST METHODS FOR ELECTRONIC VISUAL DISPLAYS
    07/30163156 DC : 0 BS EN 62433-2 - MODELS OF INTEGRATED CIRCUITS FOR EMI BEHAVIOURAL SIMULATION - ICEM-CE, ICEM CONDUCTED EMISSION MODEL
    17/30340372 DC : 0 BS EN 62906-5-1 ED 1.0 - LASER DISPLAY DEVICES - PART 5-1: MEASUREMENT OF OPTICAL PERFORMANCE FOR LASER FRONT PROJECTION
    ISO 9241-305:2008 Ergonomics of human-system interaction — Part 305: Optical laboratory test methods for electronic visual displays
    ISO 9241-307:2008 Ergonomics of human-system interaction — Part 307: Analysis and compliance test methods for electronic visual displays
    EN ISO 9241-307:2008 Ergonomics of human-system interaction - Part 307: Analysis and compliance test methods for electronic visual displays (ISO 9241-307:2008)
    BS EN ISO 9241-305:2008 Ergonomics of human-system interaction Optical laboratory test methods for electronic visual displays
    ECMA 74 : 14ED 2017 MEASUREMENT OF AIRBORNE NOISE EMITTED BY INFORMATION TECHNOLOGY AND TELECOMMUNICATIONS EQUIPMENT
    BS EN 61947-1:2002 Electronic projection. Measurement and documentation of key performance criteria Fixed resolution projectors
    I.S. EN ISO 9241-305:2009 ERGONOMICS OF HUMAN-SYSTEM INTERACTION - PART 305: OPTICAL LABORATORY TEST METHODS FOR ELECTRONIC VISUAL DISPLAYS

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

    IEC 60050-845:1987 International Electrotechnical Vocabulary (IEV) - Part 845: Lighting
    IEC 61947-1:2002 Electronic projection - Measurement and documentation of key performance criteria - Part 1: Fixed resolution projectors
    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 7779:2010 Acoustics Measurement of airborne noise emitted by information technology and telecommunications equipment
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