Dioptrice : pre-1775 refracting telescopes

pre-1775 refracting telescopes

e.g. “dollond”

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[unknown maker], 1765
Nollet, Jean Antoine, Lecons de physique experimentale

Photo

photo - whole telescope

Basic Info

Maker:

Year: 1765

Year Range: -

Year Notes:

Manufacturing Location:

Signature:

Signature Notes:

Inscriptions:

Stand present.

Collection: Nollet, Jean Antoine, Lecons de physique experimentale

Accession #:

Sources:

Lewis Pyenson and Jean-Francois Gauvin, The Art of Teaching Physics: The Eighteenth-Century Demonstration Apparatus of Jean Antoine Nollet (Septentrion, 2002), p. 58. Copyright Stewart Museum, RB 530 N72 1759-1765.

Public Notes:

Ray diagram of Newtonian and Gregorian reflecting telescopes. Illustration of each type of telescope and mounts at bottom of page.

Length (open):

Length (closed):

F-ratio:

Exit pupil:

Object status:

Optical Basics

Objective type: unknown reflector

Optical style

Physical style

Functional style

Materials:

Optical/Lab Data

Drawtube data:

Drawtube notes:

Objective Data

Eyepieces

Notes:

Additional Photos/Documents

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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

organics

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Objective Data

Eyepieces