Porte Lumiere
date: label: date made
content: late 19th century
notes: label: Description
content: 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).
label: Description
content: Ref: Maison Jules Duboscq, <i>Historique & Catalogue de tous les Instruments d’Optique Supérieure Appliqués aux Sciences et à l’Industrie</i> (Paris, 1885), p. 2.
label: Description
content: J. W. Queen & Co., <i>Priced and Illustrated Catalogue of Optical Lanterns and Projecting Apparatus</i> (Philadelphia, 1889), p. 29.
label: Location
content: Currently not on view
topic: label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Science & Mathematics
label: See more items in
content: Optics
creditLine: label: Credit Line
content: Bowdoin College
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.329730
label: accession number
content: 278336
label: catalog number
content: 329730
objectType: label: Object Name
content: porte lumiere
physicalDescription: label: Measurements
content: overall: 18 in; 45.72 cm
label: Measurements
content: overall: 17 7/16 in x 9 3/4 in x 8 1/8 in; 44.29125 cm x 24.765 cm x 20.6375 cm