ELECTRONIC PROJECTION - MEASUREMENT AND DOCUMENTATION OF KEY PERFORMANCE CRITERIA - PART 1: FIXED RESOLUTION PROJECTORS
International Electrotechnical Committee
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).
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 100 |
