Fouquet patent
Region: France Period: 1890–1930 Tag: Fouquet
© Virtual Stereoscopic Museum
Jean-Baptiste Fouquet designed an improved version of the English Graphoscope. The English Graphoscope fitted with stereo lenses is originally an open viewer. Fouquet added a wooden box with a stereoview holder behind the stereo lenses, turning it into a closed system for viewing stereoviews.
Related items:Closed system Fouquet Graphoscope
Specifications:
Classification:
Tabletop / Single-view / Folding / Graphoscope
Introduction:
1873
Designer:
Jean-Baptiste Fouquet
Construction:
Wood
System:
Open
Medium:
Paper and glass
Format:
8.5 x 17
Lens:
Convex
Lens focus:
Yes
Inter-ocular adjustment:
No
Patents and registrations:
Number: 99450
Instrument dit stéréoscope-monocle
Filing: 14-05-1873, Applicant(s): Jean-Baptiste Fouquet. via: archives.inpi.fr
Published: 20-04-2026 Last modified: 16-05-2026