Dioptrice : pre-1775 refracting telescopes

Unknown, 1625 c.+25
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 17

Dollond
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
PL.4

Rossin
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
PL.18

Passemant, Claude Simeon
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 163

Unknown
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 256

Ramsden, Jesse
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 214

Campani, Giuseppe
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
PL.22

Marshall, John
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
PL. 8

Bourgeois, Jacques / Boulliau, Ismael / Beeckman, Isaac
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 21

Marshall, John
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 39

Unknown
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
Middelburg 15

Unknown
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
Middelburg 16

Ayscough, James
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 180

Scarlett, Edward
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 367

Patroni, Pietro
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 199

Warris, William
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 232

Chevallier, Jean Gabriel Augustin
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 237

Ribright, Thomas
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 218

Harris, Thomas and William
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 225

Dixey, Charles Wastell
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 230

Unknown
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
Middelburg ?

Howe, John
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 40

Dolci [attributed]
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 79

Semitecolo, Leonardo
Louwman Collection of Historic Telescopes, Wassenaar, The Netherlands
LC 81

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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