Light projecting apparatus

Details Light projecting apparatus Light projecting apparatus

1975-11-12

1977-04-12

Wintercorn, Richard A.

Buckles, buttons, clasps, etc.

240 92, 354126, G03B 1502

Patent

active

040177270

ABSTRACT:
An elongated bar having a clamping head thereon is demountably attached to a photo flash unit to position a fresnel lens in the light beam path of the flash unit to project the light beam for telephoto use.

REFERENCES:
patent: 2953675 (1960-09-01), Kluge
patent: 2972673 (1961-02-01), Graef
patent: 3404612 (1968-10-01), Harvey
patent: 3720145 (1973-03-01), Johnson et al.
patent: 3747488 (1973-07-01), Bennett
patent: 3878385 (1975-04-01), Kingston

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