Accession No
1231
Brief Description
solar microscope with scioptic ball, 2/2 18th Century
Origin
Maker
Class
microscopes
Earliest Date
1750
Latest Date
1800
Inscription Date
Material
wood (mahogany); glass; metal (brass, steel)
Dimensions
height 214mm; side of base 100mm
Special Collection
Provenance
Inscription
Description Notes
Mahogany frame pierced for fastening at two opposite corners, mahogany ball held in frame by mahogany ferrule; lens set in a brass cell; screw-fit brass tube to screw-barrel microscope, tube with condenser lens and brass [cope]; 3 part brass stage with a steel screw; screw-fit objective marked ‘3’.
References
Events
Description
To work a solar microscope, the mirror was placed outside a room via a hole in the window shutter, whilst the barrel remained in the room. The mirror reflected the sunlight through condensing lenses, the slide containing the object and projection lenses. The image was then projected onto a screen in the room.
03/07/2009
Created by: David Bud on 03/07/2009
FM:42841
Images (Click to view full size):
