Display cabinet illumination
An illuminator has two lines of LEDs on inwardly-directed faces of an elongate body which forms a mullion for a display cabinet. Heat conduction through the body to outer surfaces provides the durable effect of anti-sweat heating to prevent condensation in doors of the cabinet.
1. An illuminator comprising:
an elongate body having an inner surface and an outer surface;
a plurality of light emitting diodes mounted on the inner surface of said body for product illumination;
the elongate body including a heat transfer portion for conduction of heat from the light emitting diodes to the outer surface of the body; and
the body being a structural member of a door frame for a display cabinet, said outer surface of the structural member being configured to face a door of a display cabinet to avoid a need for a heater in the structural member.
2. The illuminator as claimed in claim 1 , wherein the light emitting diodes are mounted in a plurality of lines.
3. The illuminator as claimed in claim 2 , wherein the diodes are mounted for mutually divergent and at least partly inwardly-directed fields of illumination.
4. The illuminator as claimed in claim 1 , wherein the body is of extruded metal.
5. The illuminator as claimed in claim 1 , wherein the body is of extruded aluminum.
6. The illuminator as claimed in claim 1 , wherein the body comprises opposed rails for snap-fitting engagement of a protective cover over the diodes.
7. The illuminator as claimed in claim 1 , further comprising an optical component for focusing or directing emitted light.
8. The illuminator as claimed in claim 7 , wherein the optical component comprises a reflector on a surface of the body.
9. The illuminator as claimed in claim 1 , further comprising a light guide for direction of light from behind the diodes to the outer surface, and the diodes are mounted on a transparent substrate.
10. The illuminator as claimed in claim 1 , wherein the body comprises a label holder for supporting a label across the outer surface.
11. The illuminator as claimed in claim 10 , wherein the label holder comprises a pair of opposed grooves or ridges for supporting a label.
12. The illuminator as claimed in claim 1 , wherein the body has a substantially planar outer surface.
13. The illuminator as claimed in claim 12 , further comprising a cover for an outer surface of the body, for abutting a cabinet door.
14. The illuminator as claimed in claim 1 , further comprising a cover for an outer surface of the body, for abutting a cabinet door; and wherein the body comprises opposed elongate grooves or ridges for support of the outer surface cover.
15. A display cabinet comprising an illuminator of claim 1 acting as a structural member.
16. The illuminator as claimed in claim 1 , wherein the light emitting diodes are arranged in a line.
17. An illuminator comprising:
an elongate body having an inner surface and an outer surface;
engagement means for engaging a display cabinet;
a plurality of light emitting diodes mounted on the inner surface of said body for product illumination;
the elongate body including a heat transfer portion for conduction of heat from the light emitting diodes to the outer surface of the body; and
the body including a label holder for supporting a label across the outer surface;
a light guide for direction of light from behind the diodes to the outer surface, and the diodes being mounted on a transparent substrate.
18. An illuminator comprising:
an elongate body having an inner surface and an outer surface;
a plurality of light emitting diodes mounted on the inner surface of said body for product illumination;
the elongate body including a heat transfer portion for conduction of heat from the light emitting diodes to the outer surface of the body;
the body being configured to also act as a structural member for a display cabinet, and ends of the body being configured for engagement with other structural members of a display cabinet; and
a cover for the outer surface of the body, for abutting a cabinet door; and
the body including opposed elongate grooves or ridges for support of the cover of the outer surface.
19. An illuminator comprising:
an elongate body;
engagement means for engaging a display cabinet;
a plurality of light emitting diodes mounted on the inner surface of said body for product illumination;
the elongate body including a heat transfer portion for conduction of heat from the light emitting diodes to the outer surface of the body;
the body being configured to act as a structural member for a display cabinet, the engagement means being incorporated in ends of the body for engagement with other structural members of a display cabinet; and
a light guide for direction of light from behind the diodes to the outer surface of the body, and the diodes being mounted on a transparent substrate.