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

Page scan 000115 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 #:
000115
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
Something wrong or inaccurate about this page? Let us Know!

Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.

Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to mhdl@commarts.wisc.edu with your comments.




We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.

Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.

LENSES AND MIRRORS 97 100. Will any projection lens project the same size screen image at different distances? 101. What effect has longer or shorter E.F. upon working distance? Measuring Focal Length of Simple Lenses, page 122 102. Is it possible for projectionists to measure the focal length of simple lenses — a plano-convex lens for example — accurately ? 103. Is it possible to measure simple lenses with sufficient accuracy to serve all practical purposes for projection work? — 104. Describe the process of measuring the focal length of a simple lens. 105. How may the focal length of bi-convex lenses be measured? 106. What rules govern the measuring of the focal length of simple lenses? 107. How would you measure the working distance of a projection lens? Measuring Equivalent Focus, page 123 ^108. Describe the process of measuring the equivalent focus of a projection or other compound lens. Working Distance and Lens Diameter, page 124 109. Is the working distance and the lens diameter often of great importance ? 110. How may the projectionist ascertain whether or not the beam all enters the projection lens? 111. If a plano-convex condenser is used will the beam enter the lens in its entirety? 112. How may the divergence of a beam be reduced and what is the objection to doing it? d^tiir ^jii i 113. How may projectionists discover that unevenness of screen illumination is inevitable if the light does not all enter the lens? Projector Optical Train, page 128 114. Of what does the projector optical train consist? 115. Describe the function of the first element of projector optical train. Jlto ^cXUuj^W