Customer Support: +44 (0)203 327 3140

Login to i2i Subscription Intertek.com
  • There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Go to AMERICAS site
Dismiss alert
Please enter a keyword to search
Advanced search
Home
CENELEC
EN 61947-1:2002

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

Published date

07-11-2002

Publisher

European Committee for Standards - Electrical

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 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
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 (i.e. individual pixel light sources or matrix displays such as liquid crystal, DMD, plasma, or electro-luminescent panels). Also applies to LCD panels or other fixed resolution imaging devices themselves that are used with overhead projectors.

Committee
CLC/TC 100X
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current

VDI 3786 Blatt 5:2015-10 Environmental meteorology - Meteorological measurements - Radiation

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

View more information
Sorry this product is not available in your region.

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.

Learn more on subscription solutions

or

Get in touch with us