I.S. EN 61947-2:2002
Current
The latest, up-to-date edition.
ELECTRONIC PROJECTION - MEASUREMENT AND DOCUMENTATION OF KEY PERFORMANCE CRITERIA - VARIABLE RESOLUTION PROJECTORS
Hardcopy , PDF
English
01-01-2002
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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
5.1.1 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.
| 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 |
56
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| DIN EN 61947-2:2002-07 | Identical |
| NF EN 61947-2 : 2004 | Identical |
| BS EN 61947-2:2002 | Identical |
| NBN EN 61947-2 : 2002 | Identical |
| IEC 61947-2:2001 | Identical |
| UNE-EN 61947-2:2002 | Identical |
| EN 61947-2:2002 | Identical |
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