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 #:
000295
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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260 HANDBOOK OF PROJECTION FOR surface. Let it be understood, however, that the terms used in describing texture and color are very general in their nature, as no precise qualitative measurements were made of these characteristics. CLASSIFICATION OF SURFACES.— An examination of the characteristics of the screens examined and tested show they may be roughly grouped into three general classes, A, TABLE 12 No. Class Name Texture Color 1 c Magnesium Carbonate Smooth White 2 C Opal Glass Smooth White 3 C White Blotting Paper Smooth White 4 c Photo Stock Plain Smooth White 5 c Photo Stock Coated Smooth White 6 c White Drawing Paper Smooth White 7 B Sandblasted Aluminum Smooth Metallic White 8 A Sandblasted Mirror Smooth White 9 A Focus Screen and Mirror Smooth White 10 A Superlite Coarse Grain Metallic White 11 A Special Coarse Grain Metallic White 12 B Green Back Fine Grain Metallic White 13 B White Back Fine Grain Metallic White 14 C Plain White Coated Smooth Yellow 15 A Imsco Silver No. 1 Coarse Grain Metallic White 16 A Imsco Gold No. 1 Coarse Grain Metallic Yellow 17 A Imsco No. 2 Coarse Grain Metallic White 18 A Imsco No. 3 Medium Grain Metallic White 19 B Imsco No. 4 Fine Grain Metallic White 20 C Imsco White Muslin Smooth White 21 A Minusa A Medium Grain Metallic White fa. 22 A Minusa B Coarse Grain Metallic White 23; A Minusa C Coarse Grain Metallic White 24| A Mazda-Lite Fine Grain Metallic White 25 B Idealite-Grade 1A l^ine Grain Metallic White 26 B Idealite-Grade IB Medium Grain Metallic White 27 B Idealite-Grade 2 Fine Grain Metallic White 28 C Dalite Crystal White Smooth Blue Green 29 B Dalite Gold Fibre Fine Grain Metallic Yellow 30 A Dalite Silver Fine Grain Metallic White 31 A Argus Crystal Bead No. 1 Medium Glass Heads Yellow 32 B Argus Crystal Bead No. 2 Fine Glass Beads Yellow 33 B Mirroroid Fine Grain Metallic White 34 A Gold Ring Smooth Metallic Yellow 35 C Half-tone Smooth White 36 A Aluminium Paper Smooth Metallic White B and C. Class A includes all those surfaces reflecting a large proportion of the picture light within a very narrow angle, and very little, by comparison, at greater angles. Class C includes those screens having high diffusive power and in Class B are grouped those surfaces which are intermediate between the extremes represented in classes A and C.