Dioptrice : pre-1775 refracting telescopes

pre-1775 refracting telescopes

e.g. “dollond”

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Mur, Christian [attributed], 1675 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 85

Unknown, 1700 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 86

Unknown, 1710 c.
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 87

Czadeczky, Ferdinand, 1675 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 88

Cramer, Gerrit, 1725 c.25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 89

Unknown, 1675 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 91

Unknown, 1675 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 92

Unknown, 1750 c.50
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 93

Unknown, 1700 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 94

Unknown, 1675 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 95

Dioptrice is made possible by the generous support of the National Science Foundation, the National Endowment for the Humanities, the Program in the History and Philosophy of Science at the University of Notre Dame, and the Adler Planetarium & Astronomy Museum.

+ Include in full text search:	Maker Manufacturing Location Description Signature Accession Public notes
+ Look for Blank Fields:	Maker Signature Year Manufacturing Location Inscriptions Provenance Drawtube Notes Public Notes Private Notes Objective Focal Length Eyepiece Focal Length Objective Notes Eyepiece Notes Magnification
+ Look for Non-Blank Fields:	Maker Signature Year Manufacturing Location Inscriptions Provenance Drawtube Notes Public Notes Private Notes Objective Focal Length Eyepiece Focal Length Objective Notes Eyepiece Notes Magnification
+ Year range:	1600 - 2014
+ Focal length range (mm):	0 - 2000
+ Free aperture range (mm):	0 - 2000
+ Full aperture range (mm):	1600 - 2014
+ Open length range (mm):	0 - 2000
+ Closed length range (mm):	0 - 2000
+ Categories:	Art Collection Book or Manuscript Instrument Collection
+ Materials:	organics bamboo black ivory bone boxwood ebony fish skin horn ivory lacquer leather lignum vitae mahogany paper parchment pasteboard rayskin shagreen sharkskin tortoiseshell vellum wood metal brass copper gilt gold leaf gold tooling iron platinum tooling silver silver tooling unknown glass glass rock crystal speculum other marble paint stone
+ Collection:
+ Objective type:	(all refractors) (all reflectors) (clear selection) N/A cassegrain doublet (crown forward) doublet (flint forward) doublet (unknown) gregorian herschelian newtonian singlet triplet unconfirmed unknown reflector

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Louwman Collection of Historic Telescopes