Apparatus and related method for correcting slide warpage in a s

Details Apparatus and related method for correcting slide warpage in a s Apparatus and related method for correcting slide warpage in a s

1996-04-16

1997-03-11

Dowling, William

Optics: image projectors

Lens support

Lens position adjustable

353 60, 353 69, 353121, G03B 2114

Patent

active

056094043

ABSTRACT:
Heat generated by the projection lamp in a projecting apparatus is used to individually pop slides having improper curvature due to heat deformation. According to the invention, a slide positioned in the projection gate of the projector exhibits incorrect curvature, preferably as detected by the autofocus system of the projector, a door is opened allowing dry heat from the projection lamp to be applied directly to the slide, preferably until the slide reverts to a proper or normal curvature.

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