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

Page scan 000706 from F. H. Richardson's bluebook of projection

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 #:
000706
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:
August 01, 2024
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688 RICHARDSON'S BLUEBOOK OF PROJECTION Reel A flanged spool of metal upon which film is wound both for its protection and convenience in handling. Reel of Film Term applied to footage of film carried on a reel when it is approximately full. Reflection As applied to light or sound, the throwing back of such portion of the energy (waves) as is not absorbed by or which cannot enter the substance which they contact. Reflector Type Light Source In projection, a light source having a horizontal positive carbon and either a horizontal negative carbon or one more or less inclined from the horizontal, its light source (crater) facing away from the projector aperture and toward a curved mirror, which latter collects the light and reflects it back to the aperture. Refraction In projection, the bending of light rays by lens action. Refractive Index When light rays pass from one transparent medium to another transparent medium of different density and do so at an angle, the ratio of the angle of incidence to the angle of refraction is known as the "refractive index" or "index of refraction" of the second medium with respect to the first. Remote Control Control of apparatus from a location removed therefrom, usually by electrical means. Residual Magnetism The magnetism retained by a permanent magnet when it is not in use.