Servicing projection equipment (1932)

Page scan 000117 from Servicing projection equipment

Record Details:

Title:
Servicing projection equipment
Date:
1932
Publisher:
New York : Mancall Publishing Corp.
Volume:
Servicing projection equipment
Leaf #:
000117
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:
August 15, 2024
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FLICKER 101 more apparent. Taking up the wear in the intermittent may enable you to trim the shutter blade and in this manner meet the increase in brilliancy and eliminate the noticeable flicker. 2. Flicker Noticeable When Amperage Is Increased (a) — The reasons for this are the same as those enumerated under section 1, headed "Flicker Shows When Xew Screen Has Been Installed." 3. Flicker Increases When Size of Picture Is Increased (a) — This is due to a natural law of optics. If you do not wish to decrease the amperage, which is the lazy way to eliminate noticeable flicker, a slight increase of speed will eliminate it. 4. Flicker Noticeable With Two-Wing Shutter (a) — The alternations of light and dark are too far apart under the speed and the existing light conditions. The persistence-of-vision effect is destroyed and eyestrain occurs. If the flicker is still pronounced after the two-blade shutter is cut to the lowest point possible under the existing conditions, then it is advisable to use a three-wing shutter. 5. Flicker Is Noticeable When Projection Speed Is Reduced (a) — The relation of the elements is altered, the blades cut the light less rapidly, and the inter