Title: Photoflash lamp array with web hinge

Abstract: A multilamp photoflash array with lamp-reflector units in linear rows facing in opposite directions and nested back-to-back. The rows of reflectors for both sides of the array are vacuum-formed from a single sheet web between the reflector rows for providing a spring-hinged center support. Each reflector has a parabolic surface with an elongated cylindrical recess behind its associated tubular lamp whereby an air space is provided between the reflector and lamp which functions as a thermal insulator for minimizing heat distortion of adjacent reflectors upon flashing of the lamp.

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Inventors: Hartman, Donald W. (Williamsport, PA, US)
Armstrong, Donald E. (Williamsport, PA, US)
Audesse, Emery G. (Williamsport, PA, US)

Application Number: 606388
Filing Date: 1975-08-21
Publication_date: 1977-06-28
Assignee: GTE Sylvania Incorporated (Montoursville, PA)
Primary Class(es): 362/13
Other Classes:
US Patent Ref:

3598984	Aug, 1971	Slomski	240/1.
3598985	Aug, 1971	Harnde, Jr. et al.	240/1.
3614412	Oct, 1971	Bellows	240/1.
3725693	Apr, 1973	Anderson et al.	240/1.
3774020	Nov, 1973	Heeman et al.	240/1.
3857667	Dec, 1974	Vetere et al.	431/95.

Other Refs:
Primary Examiner: Miller, Jr., George H.
Assistant Examiner:
Attorney: Coleman; Edward J.