The history of three-color photography (1925)

Record Details:

Title:
The history of three-color photography
Date:
1925
Publisher:
Boston : American Photographic Publishing Company
Volume:
The history of three-color photography
Leaf #:
000604
Language:
English
Subjects:
Motion Pictures, Motion pictures--Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
September 21, 2023
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588 History of Three-Color Photography was red, blue-violet, green ; in the second green, red and blue-violet and in the third blue-violet, green and red, therefore, it is clear that each constituent record passed behind each lens accompanied with its own filter. B. Jumeaux and W. N. L. Davidson01 proposed to use prisms in front of a single lens, in which case they were separated with their bases towards one another, or with three lenses, in which case the prisms were placed in front of the outer lenses ; in the former case the separation of the prisms allowed the red rays to have direct access to the film. Davidson62 pro \\\ JL IX 2. J / T ^ / m 3 <? E ni \-m \ CJ 1 / \ t ■ V 1 I \ Fig. 159. Pfcnninger's E.P. 332, 1905. Fig. 158. Davidson's E.P. 7,179, 1904. posed an arrangement of mirrors, mainly for projection, though it was said that under favorable conditions the same might be used for the negatives. Fig. 158 requires little explanation, except that of 4, and it was said that : "this arrangement gives color records from almost the same point of view unless very near objects are photographed." The same inventor63 would use two prisms point to point behind the lens, thus avoiding the formation of double pictures. O. Pfenninger64 would use non-achromatic