Document Type and Number:
Japanese Patent JPS5251789
Kind Code:
Y2
Abstract:
A slide projection overlapping apparatus comprising at least two slide projectors associated with a switching device capable, upon advent of a projection terminating signal thereto, of shifting the connections between the slide projectors enabling discontinuity to be avoided in the projections of successive views at transition from the projected slide projector to the next one. The switching device is provided with delay means for delaying by predetermined time intervals the projection terminating signal to be given to at least one of the said slide projectors with the lamp circuits which are intended to be opened and closed in predetermined sequence.
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Application Number:
JP12997772U
Publication Date:
November 25, 1977
Filing Date:
November 11, 1972
Export Citation:
International Classes:
G03B21/00; G03B23/00; G03B23/18; (IPC1-7): G03B21/00