Abstract An improved electric mirror lamp comprising a concave mirror on the focus of which a light source, for example an incandescent filament is fixed, and the lamp also includes locating means by which its position in a lamp holder is determined and support means holding the mirror at a fixed position relative to the locating means. A support mirror is an integral moulded body having portions adapted to position the locating of the mirror. The locating means may be constituted by a locating ring secured to an end cap and the support means may include indentations which engage and retain the end cap. The electric light source or bulb may be replaceable and the mirror may be formed directly on an appropriate concave surface of the support means.
Inventors
👤 Alex L. Halberstadt
👤 John C. Maddocks
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-09 13:18
CPC Classifications
H; H01; H01K; H01K7/00; H01K7/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
70 words
An electric lamp comprising a concave mirror, means for mounting an electric light source at a fixed position relative to the mirror, locating means for locating the lamp at a predetermined position in a lampholder, and support means holding the mirror at a fixed position relative to the locating means, wherein the support means is an integral moulded body having portions adapted to position the locating means and the mirror.
Claim 2
Dependent Claim
70 words
An electric lamp comprising a concave mirror, means for mounting an electric light source at a fixed position relative to the mirror, locating means for locating the lamp at a predetermined position in a lampholder, and support means holding the mirror at a fixed position relative to the locating means, wherein the support means is an integral moulded body having portions adapted to position the locating means and the mirror.
Claim 3
Dependent Claim
23 words
A lamp according to claim 1 wherein the locating means comprises a locating ring secured to an end cap on the support means.
Claim 4
Dependent Claim
28 words
A lamp according to claim 2 wherein the portion of the support means adapted to position the locating means comprises indentations which engage and retain the end cap.
Claim 5
Dependent Claim
32 words
A lamp according to claim 1 wherein the portion of the support means adapted to position the mirror comprises studs which engage and retain the mirror when mounted on the support means.
Claim 6
Dependent Claim
20 words
A lamp according to claim 1 wherein the mirror is formed directly on a concave surface of the support means.
Claim 7
Dependent Claim
25 words
A lamp according to claim 1 wherein the light the light source is an incandescent bulb having a filament at the focus of the mirror.