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Heliostat

Duboscq, Jules · ca 1900 · overall: 23 1/2 in; 59.69 cm

From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.

About this work

A heliostat throws sunlight where it might be used for photography or scientific observations. This unsigned example consists of a rectangular mirror with rounded corners that is mounted in a metal frame and supported on a tri-leg base. It has no clockwork, but it does have tangent screws for turning the mirror around its vertical and horizontal axes. Several manufacturers offered “laboratory heliostats” of this general design.

National Museum of American History’s own description

Subjects

heliostat

Credit lineHeliostat. ca 1900. Duboscq, Jules. National Museum of American History, U.S. Military Academy. CC0.

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