POLISHING—SPHERICAL SURFACES

Series: Optical craftsmanship series

Duration: 28 min

Year Published: 1945

Creator: Castle Films

Format: 16mm

Sound: Sound

Description: Produced by US Office of education. How to trim the polishing shell to size and fit to breshers; how to hand and use the polishing machine; how to make a Newton's ring check with a test glass; and how to correct for hollow condition and high condition.

Complete Record: Series: Optical craftsmanship series Dewey number: 681.4 Audience level: sh-trade-adult Guide Format/cost: 16-sd-$35.02 Distributors / rental: Bell & Howell Company $35.02 rent $2; Calhoun Company; Dav; W. D. Engleman Company; Wilfred Naylor; Photoart House; A. H. Rice and Company; Sunray Films Company; Visual Art Films $35.02; Visual Education Service, Inc

Metadata Source:Educational Film Guide 1946