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I.S. EN 61947-1:2002

Current
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

Preview

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.

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

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).

DevelopmentNote
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType
Standard
Pages
48
PublisherName
National Standards Authority of Ireland
Status
Current

Standards Relationship
BS EN 61947-1:2002 Identical
NF EN 61947-1 : 2004 Identical
NBN EN 61947-1 : 2003 Identical
IEC 61947-1:2002 Identical
DIN EN 61947-1:2003-03 Identical
UNE-EN 61947-1:2003 Identical
EN 61947-1:2002 Identical

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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