Handbook of projection for theatre managers and motion picture projectionists ([1922])

Record Details:

Title:
Handbook of projection for theatre managers and motion picture projectionists
Date:
[1922]
Publisher:
New York, Chalmers
Volume:
Handbook of projection for theatre managers and motion picture projectionists
Leaf #:
00014
Language:
English
Collection:
Books
Format:
Books
Contributor:
Gerstein - University of Toronto
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
14
Date Added:
July 19, 2022
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MANAGERS AND PROJECTIONISTS Serious Objection to Large Diameter Condenser, 170, 203 and 205 Proper Spacing of Condenser Lenses 170 Reason for 1/16-Inch Spacing of Lenses 170-171 Discolored Lenses, Practical Effect of 164 Discolored Lenses — What to Do with Them 165 Pitted Collector Lens, Effect of 165 Lens Edge Thickness, Importance of 166 Polish and True Curvature, Importance of 167 Meniscus Bi-Convex, When to Use 169 Small Diameter Condensers 169 Condenser Mounts 171 Light Loss Between Lenses 171 Condenser Breakage 171 Magnification of Light Source at Spot 175 Ghost Zone in Condenser Beam 177 Effect of Condenser Distance from Aperture on Divergence of Beam Beyond Aperture 184 Universal Method of Selecting Condenser and Ascertaining Its Proper Distance from Aperture. . .194-202 Condenser Diameter 203 Requirements of Good Condenser Holder 367 Advantage of Locating Condenser Inside Lamp House 368 Inside Dowser 368 Crater Angle See The Light Source Current Also see Electrical Action Alternating and Direct 13 Why A. C. Is More Generally Used Than D. C 13-14 Relation of Volts and Amperes to Power 13 Action of A. C 16 Objection to Low Frequency Current 15 Single, Two and Three-Phase Current 18 Current Rectification Why A. C. Should be Rectified for Projection, 390 and 442 Current Rectifying Device Recommended 443 Electrical Action Electricity— What Is It ? 3 Necessary to Understand Electrical Action 3 Pglarity. ...... r , 3