Strobe for detector

• US 5,546,293 A
• Filed: 06/01/1995
• Issued: 08/13/1996
• Est. Priority Date: 05/21/1993
• Status: Expired due to Fees

• Current Assignee: Pittway Corporation (Honeywell International Inc.)
• Original Assignee: Pittway Corporation (Honeywell International Inc.)
• Inventors: Moran, Walter J. III
• Primary Examiner(s): Gromada, Denise L.
• Assistant Examiner(s): Sember, Thomas M.
• Application Number:
  US08/457,532
• Time in Patent Office: 439 Days
• Field of Search: 362/348, 362/301, 362/346, 362/347, 362/16, 362/278, 362/222, 362/342, 362/297, 362/302
• US Class Current: 362/301
• CPC Class Codes: F21V 7/005 with an elongated shape to cooperate with linear light sources
• CPC Class Codes: F21Y 2103/00 Elongate light sources, e.g. fluorescent tubes

Abstract

A multiple element reflector usable with an elongated light source in a strobe unit provides wide fields of view in both horizontal and vertical directions when the unit is mounted on a wall. The reflector includes a first, elongated, curved reflector element which extends generally parallel to the elongated light source. At least second and third centrally located reflector elements extend between the first reflector element and the light source. The first reflector element provides illumination generally in horizontal and vertical directions perpendicular to the elongated source. The second and third centrally located reflector elements provide illumination in a direction generally along the elongated source.

Claims

1. A strobe unit energizable with electrical energy for illuminating a first field and a second field generally perpendicular to the first field, relative to a light source oriented parallel to the second field comprising:

a housing;

a concave multi-element reflector carried by said housing, said reflector defining an interior region and having first and second open ends, said concave reflector having at least one transverse reflecting member positioned within said interior region and generally transverse to said concave reflector; and

an elongated high intensity source of visible radiant energy defining a longitudinal axis therethrough and disposed at least in part within said interior region, wherein said axis is generally transverse to said at least one transverse reflecting member, wherein at least a portion of said transverse reflecting member is positioned between said source and said concave reflector, and wherein radiant energy from said source in part impinges on said at least one transverse member and is reflected therefrom to, in part, illuminate a field which extends parallel to said longitudinal axis of said source, beyond said open ends of said concave reflector.

2. The strobe unit of claim 1 wherein said transverse reflecting member includes at least two reflecting surfaces, each of said reflecting surfaces generally unobstructedly reflecting energy from said source toward a respective open end of said concave reflector to illuminate a field which extends parallel to said longitudinal axis of said source, beyond said open ends of said concave reflector.

3. The strobe unit of claim 1 having a first, central transverse reflecting member positioned equidistant from each of said open ends, and second and third transverse reflecting members each being positioned between said central transverse member and a respective open end of said reflector.

4. A strobe unit energizable with electrical energy for illuminating a first field and a second field generally perpendicular to the first field, relative to a light source oriented parallel to the second field comprising:

a housing;

a concave multi-element reflector carried by said housing, said reflector defining an interior region and having first and second open ends, wherein said elements correspond to partial parabolic surfaces;

a transverse reflecting member positioned within said interior region and oriented generally transverse to said concave reflector, wherein said transverse member includes at least two reflecting surfaces in back to back relation one with the other; and

an elongated high intensity source of visible radiant energy defining a longitudinal axis therethrough and disposed adjacent to some of said elements wherein said axis is generally transverse to said transverse reflecting member, wherein at least a portion of said transverse reflecting member is positioned between said source and said concave reflector, and wherein radiant energy from said source in part impinges on each of said back to back reflecting surfaces for generally unobstructedly reflecting energy from said source toward respective open ends of said concave reflector.

5. A multi-element reflector for use with a strobe unit energizable with electrical energy and having an elongated high intensity source of visible radiant energy for illuminating a first field and a second field generally perpendicular to the first field, relative to said source oriented parallel to the second field comprising:

a concave multi-element body defining an interior region and having first and second open ends, wherein said elements correspond to partial parabolic surfaces, and wherein said concave reflector includes at least one generally centrally located reflecting member positioned within said interior regions, transverse to said concave reflector, and wherein said radiant energy from said source in part impinges on said at least one centrally located reflecting member and is reflected therefrom and is visible from either of said first and second open ends.