ANSI/PIMA IT7.220:1995(R1997)
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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 - OVERHEAD PROJECTORS - PROJECTION STAGES - DIMENSIONS
Hardcopy , PDF
23-07-2013
English
Foreword
Introduction
1. Scope and field of application
2. Definitions
3. Dimensions of picture area (with rounded or diagonally cut
corners), location pins and clear area
Figure 1: Part of the construction of overhead projectors to
show the relationship between projection stage
aperture, picture area, projection stage and object
plane
Figure 2: Dimensions of picture area and positions of location
pins on projector stage for type A projector
Figure 3: Dimensions of picture area and positions of location
pins on projector stage for type B projector
Figure 4: Dimensions of clear area on type A overhead projector
Figure 5: Dimensions of clear area on type B overhead projector
Annex A: Bibliography
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