Unknown, 1790 c.
Mathematisch-Physikalischer Salon / Staatliche Kunstsammlungen Dresden Arrow right Arrow left
Basic Info

Maker: Unknown

Year: 1790 c.

Year Range: -

Year Notes:

Manufacturing Location: Unknown

Signature:

Signature Notes:

Inscriptions:

No stand present.

Collection: Mathematisch-Physikalischer Salon / Staatliche Kunstsammlungen Dresden

Accession #: CIF 22

Sources:

Helmut Schramm, Astronomische Instrumente Katalogue, Staatlicher Mathematisch-Physikalischer Salon, Dresden, Zwinger, item 15, pg. 17.

Public Notes:

Five pulls; all tubes of paper. Objective tube with cover of green-dyed fish skin. Inner tubes with cover of green-dyed parchment. End ring as well as trim of objective tube and lens mounts of fire gilt brass. End rings of inner tubes of green-dyed parchment. End ring of ocular tube of dark brown wood. Eyepiece with shutter. Two objective lenses in [Wurfelrevolver], simple convex. One objective missing. Five-lens eyepiece system.

Length (open):

Length (closed): 495

F-ratio:

Exit pupil:

Object status:

Optical Basics

Objective type: doublet (unknown)

Optical style terrestrial

Physical style

Functional style

Materials:

Optical/Lab Data

Drawtube data:

Drawtube notes:

Objective Data

CA curvature (diopters): CB curvature (diopters): PD lens power (diopters): fD focal length (mm): t thickness (mm): free aperture (mm): full aperture (mm): nD refractive index: ν Abbe No.:
Lens 1 17.00 1250.00 23.70

Eyepieces

Notes: