F. H. Richardson's bluebook of projection (1935)

Record Details:

Title:
F. H. Richardson's bluebook of projection
Date:
1935
Publisher:
New York : Quigley Publishing Company, Inc.
Volume:
F. H. Richardson's bluebook of projection
Leaf #:
000709
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
{"Media History Digital Library","Jeff Joseph"}
Coordinator:
Media History Digital Library
Description:
Date Added:
June 04, 2024
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DEFINITIONS 691 ing suitable windings is rotated therein, the field itself will rotate by reason of induced currents. The action of induction motors is dependent upon a rotary field. Rotor In a dynamo or motor, the part that rotates. In an induction motor the "rotor" usually is the armature, the other part the "stator." R.P.M. or RPM Abbreviation for revolutions per minute. R.C. Abbreviation for rubber-covered. Saturation, Point of As applies to magnets, the highest power to which the magnetic field can be raised. As applies to liquids, the point at which it will absorb no more of some given substance soluble therein. Screen In projection, the surface upon which the projected rays of light are focused and the image formed. Screen, Diffusive A screen the surface of which scatters the reflected light rays widely. Screen, Semi-Diffusive A screen the surface of which scatters the reflected rays in more narrow angles than does the diffusive surface, and in somewhat wider angles than does the specular surface. Screen, Specular A screen surface having relatively slight powers of diffusion. Heavy fade-away occurs after the 20 degree viewing angle is passed.