BS EN 61947-1:2002
Current
The latest, up-to-date edition.
Electronic projection. Measurement and documentation of key performance criteria Fixed resolution projectors
Hardcopy , PDF
English
17-01-2003
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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
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Bibliography
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.
| Committee |
EPL/100
|
| DevelopmentNote |
Supersedes 00/244877 DC (01/2003)
|
| DocumentType |
Standard
|
| Pages |
38
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
IEC 61947-1:2002 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 electroluminescent panels). It also applies to LCD panels or other fixed resolution imaging devices themselves that are used with overhead projectors. This bilingual version (2013-02) corresponds to the monolingual English version, published in 2002-08.
| Standards | Relationship |
| I.S. 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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