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Patent US3039308A successfully refreshed from Google Patents.
Patent US3739169A successfully refreshed from Google Patents.
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US3739169A Expired / Lapsed US ⏱️ 0.0 years remaining

Panoramic light emitter for warning lights

Assignee: Individual
•
Filing: 1971-08-30
•
Granted: 1973-06-12
•
Expires: 1991-08-30
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Abstract

Abstract The panoramic light emitter includes a cylindrically shaped converging lens positioned around a central light source. The lens directs the rays of light passing therethrough in a horizontal direction generally perpendicular to the vertical axis of the emitter. Concave reflectors having a configuration in section of segments of a parabola are positioned above and below the cylindrical lens. The light rays strike the reflectors and reflect horizontally parallel to the light rays reflected by the lens so that substantially all of the light from the light source is either deflected by the lens horizontally or reflected by the reflectors horizontally to provide a panoramic source of light for 360 degrees around the vertical axis of the emitter. Another embodiment has a transparent generally cylindrical member positioned over the light source with the axis of the cylindrical member coaxial with the vertical axis of the emitter. The cylindrical member has upper and lower portions positioned above and below the light source that deflect the vertically projected rays of light emanating from the light source to a horizontal direction generally perpendicular to the vertical axis of the emitter. The intermediate portion of the cylindrical member has an annular cylindrical concave lens and annular upper and lower deflectors that also project the intermediate portion of the light generated by the light source in a horizontal direction to thus provide a panoramic source of light for 360* around the vertical axis of the light emitter.

Inventors

  • 👤 W Weinreich

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 08:29
CPC Classifications
F; F21; F21V; F21V5/00; F21V5/04; F21V5/046; B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2611

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 204 words
A panoramic light emitter for warning lamps comprising, a housing, a light source having a vertical axis supported on said housing, a lens non-rotatably secured to said housing and positioned symmetrically around said light source, said lens arranged to provide a light source for 360* around the vertical axis of said light source, said lens having an upper prismatic portion, an intermediate converging portion and a lower prismatic portion, said upper and lower prismatic portions each having a plurality of faces extending perpendicular to said light source vertical axis, said plurality of faces arranged in staggered relation to each other so that substantially all of the light beams emanating from said light source directed toward said plurality of faces will enter one of said faces, said upper and lower prismatic portions each having a plurality of base portions arranged angularly to said faces so that the light beams emanating from said light source entering said faces are totally reflected on said base portions, and said lens upper prismatic portion, intermediate converging portion and lower prismatic portion arranged so that substantially all of the light beams emanating from said light source are directed in a direction perpendicular to said vertical axis of said light source.
Claim 2
Dependent Claim 204 words
A panoramic light emitter for warning lamps comprising, a housing, a light source having a vertical axis supported on said housing, a lens non-rotatably secured to said housing and positioned symmetrically around said light source, said lens arranged to provide a light source for 360* around the vertical axis of said light source, said lens having an upper prismatic portion, an intermediate converging portion and a lower prismatic portion, said upper and lower prismatic portions each having a plurality of faces extending perpendicular to said light source vertical axis, said plurality of faces arranged in staggered relation to each other so that substantially all of the light beams emanating from said light source directed toward said plurality of faces will enter one of said faces, said upper and lower prismatic portions each having a plurality of base portions arranged angularly to said faces so that the light beams emanating from said light source entering said faces are totally reflected on said base portions, and said lens upper prismatic portion, intermediate converging portion and lower prismatic portion arranged so that substantially all of the light beams emanating from said light source are directed in a direction perpendicular to said vertical axis of said light source.
Claim 3
Dependent Claim 25 words
A panoramic light emitter as set forth in claim 1 in which, said lens includes a pair of semicylindrical portions fabricated of light transmitting plastic.
Claim 4
Dependent Claim 27 words
A panoramic light emitter for warning lamps as set forth in claim 1, said upper and lower prismatic portions include outer faces which have a cylindrical configuration.
Claim 5
Dependent Claim 48 words
A panoramic light emitter for warning lamps as set forth in claim 3, said upper and lower prismatic portion outer faces are arranged so that the light beam, emanating from said light source are spread apart in a non-perpendicular relation with the vertical axis of said light source.
Claim 6
Dependent Claim 48 words
A panoramic light emitter for warning lamps as set forth in claim 1 which includes, a bell shaped transparent member positioned over said lens and secured to said housing, said bell shaped member including curved portions arrAnged to further diverge the light beams emanating from said light source.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-06-11 1976-12-11 1977-06-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-11 1980-12-11 1981-06-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-11 1984-12-11 1985-06-12 $7700.00 Window Closed / Lapsed

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