Abstract

The problem was to make an 18-in. (45-cm) diam integrating sphere in two halves, each 9-in. diam, with a polished nickel surface. Two aluminum castings were machined on—of all places—a Blanchard curve generator. Don't forget that your Blanchard makes a fine vertical lathe. Several interesting additions to the Blanchard are described.

© 1975 Optical Society of America

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