H - Electricity – 01 – K
Patent
H - Electricity
01
K
313/85
H01K 7/02 (2006.01) F21V 19/00 (2006.01) H01K 1/50 (2006.01)
Patent
CA 1139822
1 PHN. 9497. ABSTRACT: A lamp-reflector unit according to the invention has a concave reflector with an opening at its apex in which the pinch of a halogen incandescent lamp extends. The incandescent lamp has a filament which surrounds the optical axis of the reflector. The lamp envelope of the incandescent lamp is substantially spheroidal and has a maximum diameter which is larger than the width of the pinch, a tipped-off exhaust tube being situated opposite to the pinch.
353808
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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