light polarizer
Date1850-1880
Inventory Number1997-1-1704
ClassificationPolarizer
Subject
Maker
Louis Jules Duboscq
French, 1817 - 1886
Cultural Region
Place of Origin
Dimensions42.5 × 27 × 24 cm (16 3/4 × 10 5/8 × 9 7/16 in.)
Material
DescriptionThis instrument consists of a cylindrical tube in which there are two black mirrors at an angle acting as polarizing mirrors. The tube is supported by a telescoping rod on a tripod base.
Signedon side, in script: J. Duboscq / à Paris
Louis Jules Duboscq
Date: 1860-1879, 1882-1885
Accessories: 2nd mirror; 2nd brass cover for mirror mount hole; 2nd face plate with twin lenses (originally found with 1998-1-1635 which it did not fit. Jan 2008).
Object number: 1997-1-1469a,b
Louis Jules Duboscq
Date: circa 1875
Object number: 1997-1-1477a
Louis Jules Duboscq
Date: 1850-1880
Accessories: RAPPORT FAIT A L'ACADEMIE ROYAL SCIENCES SUR UN NOUVEL HELIOSTAT, Presente par M. SILBERMAN aine. (in instrument file folder)
Object number: 2000
Louis Jules Duboscq
Date: 1850-1880
Object number: 1997-1-1569
Louis Jules Duboscq
Date: 1860-1880
Accessories: wooden base; wooden box
Object number: 2010
