Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB407820A
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Individual
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Individual
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Priority to GB407820ApriorityCriticalpatent/GB161768A/en
Publication of GB161768ApublicationCriticalpatent/GB161768A/en
H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
H01K1/325—Reflecting coating
Landscapes
Vessels And Coating Films For Discharge Lamps
(AREA)
Abstract
161,768. Konieczny, A. Feb. 10, 1920. Reflectors.-A metal rejector f having an apex angle of 90‹ fits over the conical part d of an electric lamp bulb having an elongated axial filament. The reflector has a ring h engaging the lampholder. The reflector may be secured to the bulb by sodium or potassium silicate.
GB407820A1920-02-101920-02-10Improvements in electric lamps
ExpiredGB161768A
(en)