Porte Lumiere

Like a heliostat, a porte lumiere throws sunlight where it might be used for photography or scientific observations. But while a heliostat is moved by clockwork, a porte lumiere is moved by hand. This incomplete example consists of a rectangular mirror (6 inches wide; 11.25 inches long), and a circular mirror (8 inches diameter).
Ref: Maison Jules Duboscq, Historique & Catalogue de tous les Instruments d’Optique Supérieure Appliqués aux Sciences et à l’Industrie (Paris, 1885), p. 2.
J. W. Queen & Co., Priced and Illustrated Catalogue of Optical Lanterns and Projecting Apparatus (Philadelphia, 1889), p. 29.
Currently not on view
Object Name
porte lumiere
date made
late 19th century
overall: 18 in; 45.72 cm
ID Number
accession number
catalog number
Science & Scientific Instruments
See more items in
Medicine and Science: Physical Sciences
Science & Mathematics
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Bowdoin College

Visitor Comments

Add a comment about this object

**Please read before submitting the form**

Have a comment or question about this object to share with the community? Please use the form below. Selected comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about the history, rarity, or value of your personal artifacts.

Have a question about anything else, or would you prefer a personal response? Please visit our FAQ or contact page.

Personal information will not be shared or result in unsolicited e-mail. See our privacy policy.

Enter the characters shown in the image.