EN 61947-2:2002
Current
The latest, up-to-date edition.
Electronic projection - Measurement and documentation of key performance criteria - Part 2: Variable resolution projectors
28-02-2002
INTRODUCTION
1 Scope
2 Normative references
3 Definitions
4 General requirements
5 Light output measurement and specification
5.1 Light output specifications
5.1.1 Light output specification for projectors
with a separate screen
5.1.2 Full-black light level specification
5.1.3 Luminance specification for devices with
an integral screen
5.2 Light output uniformity
5.2.1 Example of a uniformity specification
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
6.1.1 Description and general requirements
6.1.2 Horizontal resolution
6.1.3 Vertical resolution
6.1.4 Procedure
6.2 Video frequency response specifications
6.2.1 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
6.6.1 Colour chromaticity
6.6.2 Colour uniformity
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 labelling
Annex A (normative) Figures
Annex B (normative) Pattern generator specifications
Annex C (informative) Considerations in formulating
this standard
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
Annex G (normative) Alternative method for measuring
resolution using the NIDL grille contrast method
Annex H (informative) Photometer precision and veiling
glare
Annex I (informative) Light measuring devices
Annex J (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 CRT and laser-based projectors and other variable resolution projectors.
| Committee |
CLC/TC 100X
|
| DocumentType |
Standard
|
| PublisherName |
European Committee for Standards - Electrical
|
| Status |
Current
|
| Standards | Relationship |
| DIN EN 61947-2:2002-07 | Identical |
| IEC 61947-2:2001 | Identical |
| NBN EN 61947-2 : 2002 | Identical |
| NEN EN IEC 61947-2 : 2002 | Identical |
| I.S. EN 61947-2:2002 | Identical |
| PN EN 61947-2 : 2003 | Identical |
| UNE-EN 61947-2:2002 | Identical |
| BS EN 61947-2:2002 | Identical |
| NF EN 61947-2 : 2004 | Identical |
| CEI EN 61947-2 : 2002 | Identical |
| EN 61947-1:2002 | Electronic projection - Measurement and documentation of key performance criteria - Part 1: Fixed resolution projectors |
| VDI 3786 Blatt 5:2015-10 | Environmental meteorology - Meteorological measurements - Radiation |
| I.S. EN 61947-1:2002 | ELECTRONIC PROJECTION - MEASUREMENT AND DOCUMENTATION OF KEY PERFORMANCE CRITERIA - PART 1: FIXED RESOLUTION PROJECTORS |
| BS EN 61947-1:2002 | Electronic projection. Measurement and documentation of key performance criteria Fixed resolution projectors |
| IEC 60107-1:1997 | Methods of measurement on receivers for television broadcast transmissions - Part 1: General considerations - Measurements at radio and video frequencies |
| IEC 60050-845:1987 | International Electrotechnical Vocabulary (IEV) - Part 845: Lighting |
| 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) |
| IEC 61947-1:2002 | Electronic projection - Measurement and documentation of key performance criteria - Part 1: Fixed resolution projectors |
| EN ISO 7779:2010 | Acoustics - Measurement of airborne noise emitted by information technology and telecommunications equipment (ISO 7779:2010) |
| 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 |
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