Accession No

6493

Brief Description

Fresnel’s mirror for interference demonstration, by Václav Frič, Austro-Hungarian, 19th Century

Origin

Austria-Hungary [now Czech Republic]; Prague

Maker

Frič, Václav

Class

demonstration; optical

Earliest Date

1878

Latest Date

1900

Inscription Date

Material

wood; metal (brass); glass

Dimensions

height 345mm; width 145mm; depth 102mm

Special Collection

Provenance

Purchased from The Gemmary, P. O. Box 2560, Fallbrook, CA 92088, U.S.A. on or before 24/03/2011.

Inscription

[On underside] Prag
[On back of stand] A/F 177

Description Notes

Brass stand with painted wooden base supporting two black polished glass mirrors. Mirrors are held side-by-side by brass clamps and can be adjusted for height, rotated about stand and about the horizontal supporting arm.

Three screws to adjust angle of mirrors separately, allowing a single light source to be reflected off mirrors as two separate beams. These beams can then demonstrate a pattern of interference.

Condition good; complete

References

Events