optical bench accessories
Date1880-1910
Inventory Number2020b
ClassificationOptical Bench
Subject
Maker
Ferdinand Ernecke
?
fl. 1859 - 1915
User
Department of Physics, Harvard University
founded 1884
Cultural Region
Place of Origin
Dimensions24 × 94 × 17.3 cm (9 7/16 × 37 × 6 13/16 in.)
Material
Accessorieswooden base
Bibliography
DescriptionA wooden base painted black has pegs supporting various types of accessories used on an optical bench (2020a). They are all mounted on brass column. These are from left to right: 1) optical tube with piece of glass marked with a vertical line in the center; 2) Nicol prism in cylinder; 3) lens framed in black diaphragm; 4) lens framed in black diaphragm; 5) Nicol prism; 6) empty support (perhaps for glass plates analyzer); 7) Fresnel apparatus; 8) optical tube with revolving four-hole diaphragm on which can be fixed one of seven wood mounted lenses: hexagonal, square, oval, rhomboid, circle, rectangular and triangle (all marked in red ink "H", meaning Harvard). There are also two brass supports that have no mounted accessory.
Signedunsigned
Curatorial RemarksThough unmarked, these optical bench accessories are very similar in design to the ones advertised by Ernecke in the catalogue mentioned in the primary sources. In the catalogue the optical bench is described as "Grosse optische Bank nach Paalzow, zur objektiven Darstellung der Polarisations-Erscheinungen, Spektral-Analyse und Mikroskopie."
ProvenanceFrom the Department of Physics, Jefferson Laboratory, Harvard University.
Heinrich Daniel Ruhmkorff
Date: 1860-1875
Object number: 2006-1-0013
Ernst Leitz (company)
Date: circa 1919
Accessories: oculars (2): 3, 8x; accessory box; Leitz objectives (5); wrenches (2); ground glass; N.A. 1.45 condensor cap; Abbe condensor; rotary stage; case
Object number: 1345
Heinrich Daniel Ruhmkorff
Date: 1860-1875
Object number: 1996-1-0531
Hermann & Pfister
Date: circa 1872
Accessories: pine box; instruction manual; glass tubes (2); open-ended tube; gas lamp (DW0854b)
Object number: DW0854a
Department of Geology and Geography, Harvard University
Date: circa 1875
Object number: 2003
Andrew Pritchard
Date: 1835-1840
Accessories: objectives (4); oculars (6); lieberkühns (4); stage forceps; bull's eye condenser on stand; spring stage; extra mechanical stage; polarizer; cup diaphragms and holders; substage fork mount; live box; glass troughs (2); concave glass; fish tube holder; case; 2 keys. See also slide micrometers (2) (1088b,c)
Object number: 1088a
Jules Duboscq & Philibért François Pellin
Date: 1885-1900
Object number: 1997-1-1481
See also/See also
