$70 · Vintage Projection Optics Opa-Scope 20006 Projector

Opa-Scope 20006 Opaque Projector with Projection Optics 18" EF Lens Vintage Projection Optics Opa-Scope 20006 Projector FONCTIONNE TRÈS BIEN AMPOULE NEUVE Tested and in great working condition, bulb is new. ACHETEUR SÉRIEUX SEULEMENT SERIOUS BUYER ONLY DESCRIPTION Opa-scope still projector Made by Projection Optics Co Inc in Orange, New Jersey, United States of America, c.1960. An opa-scope is used to project both opaque and transparent material onto a screen within a darkened environment - the generic term for these devices is epidiascope. This visual material was usually presented to small groups by individuals who were conducting educational or training programs, entertaining or professional presentations. Other technologies providing this type of facility at the time include the blackboard, slide projectors and overhead projectors. One of the largest users of this type of technology was the education department where they were used to present educational and training material to small groups. Opa-scopes were used extensively from the mid 1960s to the late 1970s when there was a movement toward incorporating other media as learning tools within state and federal educational institutions. Although we do not know the provenance of this opa-scope it is exactly the type of unit that was used for this purpose