parabolic mirror
Date: 1900 - 1950
Inventory Number: 2007-1-0049
Classification: Mirror
Subject:
Maker: American
Place of Origin:
Dimensions:
18.3 × 15.3 × 5.5 cm (7 3/16 × 6 × 2 3/16 in.)
box: 7.6 × 20 × 19.1 cm (3 × 7 7/8 × 7 1/2 in.)
Description:
The parabolic mirror is held by a steel frame meant to stand upright. The mirror was most likely meant to be used on an optical bench. Hand-written inscription made with a pen has been mostly erased. The surface of the mirror looks like it was silvered.
The letter "H" (for Harvard) has been painted in orange on the frame.
The letter "H" (for Harvard) has been painted in orange on the frame.
Signedunsigned
FunctionWas used to reflect light from a source so the light beams were all parallels to each other.
See how such a mirror was used by Jules Duboscq toward the end of the nineteenth century, here.
See how such a mirror was used by Jules Duboscq toward the end of the nineteenth century, here.