Dioptrice : pre-1775 refracting telescopes

pre-1775 refracting telescopes

e.g. “dollond”

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Sterrop, George, 1740 c.
National Maritime Museum, Greenwich (London), England
NAV1514

Dollond, 1770 c.
National Maritime Museum, Greenwich (London), England
NAV1487

Cuff, John, 1736
National Maritime Museum, Greenwich (London), England
NAV1526

Sharp, Abraham, 1700 c.
National Maritime Museum, Greenwich (London), England
AST0924

Unknown, 1700 c.
National Maritime Museum, Greenwich (London), England
NAV1567

Dollond, 1760 c.
National Maritime Museum, Greenwich (London), England
NAV1534

Cock, Christopher [attrib], 1680 c.
National Maritime Museum, Greenwich (London), England
NAV1543

Unknown, 1690 c.
National Maritime Museum, Greenwich (London), England
NAV1491

Watkins, Francis, 1780 c.
National Maritime Museum, Greenwich (London), England
AST0959

Hooke, Robert, 1721 c.
National Maritime Museum, Greenwich (London), England
AST0979

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.

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+ 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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