Richardson's handbook of projection (1927)

Record Details:

Title:
Richardson's handbook of projection
Date:
1927
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
000501
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
September 28, 2023
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MANAGERS AND PROJECTIONISTS 949 star shutters, complete flood and spot lighting is accomplished through the one apparatus; also by reason of the fact that both condenser and projection lens is employed, both flood and spots have even illumination over their entire area, and are very white. There are no aberrations or discolorations such as are inevitable when only a single lens is used as in the ordinary spot lamp. Figure 373 FRONT VIEW OF DUAL FOCUS PROJECTION LENSES "A"— Rear or short focus lenses in position ready to project moving scenic effects or moving color effects over the entire stage opening. "B" — Dissolving shutters for dissolving from one effect or slide to the other. These shutters are adjustable to gradually close one while opening the other or both open at the same time. "C" — Front effect holder for color effects which must be operated in front of the projection lens. "D" — "Rainbow" (Prism) effect in place. "E" — Front, or long focus lenses, swung out of position.