NAPM IT7.228 : 1997
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
AUDIOVISUAL SYSTEMS - ELECTRONIC PROJECTION - FIXED RESOLUTION PROJECTORS
01-07-2003
12-01-2013
Foreword
0 Introduction
1 Scope
2 Normative references
3 Definitions
4 Light output measurement and specification
5 Fixed resolution projector characteristics
6 Range of focus and image size
7 Audio characteristics
8 Lamp characteristics
9 Noise: maximum sound level
10 Power consumption
11 Weight
12 Dimensions
13 Input signal levels
Annexes
A Test patterns/measurements setup
B Pattern generator specifications
C Complete sample specification
Defines liquid crystal displays (LCD) or other fixed resolution projectors in which the light source and projection/magnification optics are an integral part of the device, and covers those used with overhead projectors.
| DevelopmentNote |
Revision and redesignation of ANSI IT7.228. (08/2001)
|
| DocumentType |
Standard
|
| PublisherName |
National Association of Photographic Manufacturers, Inc.
|
| Status |
Withdrawn
|
| Supersedes |
| ANSI S12.32 : 0 | PRECISION METHODS FOR THE DETERMINATION OF SOUND POWER LEVELS OF DISCRETE-FREQUENCY AND NARROW-BAND NOISE SOURCES IN REVERBERATION ROOMS |
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