EP 0000275 A1 19790110 - A stereoscopic film slide and viewer.
Title (en)
A stereoscopic film slide and viewer.
Title (de)
Stereoskopischer Diaträger und Stereoskop.
Title (fr)
Carte de diapositives stéréoscopiques et stéréoscope.
Publication
Application
Priority
US 81025577 A 19770627
Abstract (en)
A stereoscopic film slide and a viewer are disclosed. The slide (22) comprises a carrier (140) and a plurality of pairs of stereoscopic photographic transparencies (142) arranged in two superposed rows in which the transparencies in the respective rows are inverted with respect to one another so that one of the rows can be viewed in a slot (48) in the viewer (20) in which the slide (22) is longitudinally displaceable and the second row of transparencies can be viewed with the slide (22) in a second position in the viewer in which the slide is inverted compared to its first position. The viewer (20) is assembled from a cardboard blank (52) and includes front and rear portions (24 and 26, respectively) defining therebetween a slot (48) to receive the slide (22). The slot (48) has open ends and an open top and the rear portion (26) of the viewer is displaceable rearwardly to open the slot (48) to a generally V-shaped configuration for insertion of the film slide (22) into and removal thereof from the slot. The rear portion (26) of the viewer is maintained in its normal position by an elastic tension member (132) which extends diagonally of said portion.
IPC 1-7
IPC 8 full level
G02B 27/22 (2006.01)
CPC (source: EP US)
G02B 30/37 (2020.01 - EP US)
Citation (search report)
- FR 1037644 A 19530922 - PHOTART
- FR 1147784 A 19571129
- [D] US 3734596 A 19730522 - NERLICH G
- FR 1461824 A 19660225 - RIZZOLI EDITORE S P A
- [D] US 2934999 A 19600503 - JOSEPH BAUMEL
- FR 1262757 A 19610605 - STEREOSTAR ITALIANA DI FERNAND
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 78300081 A 19780627; US 81025577 A 19770627