Arch-shaped LED lamps

Patent metadata

Field	Value
Publication number	US-10612748-B2
Application number	US-201214002367-A
Country	US
Kind code	B2
Filing date	Feb 14, 2012
Priority date	Apr 12, 2011
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

Floor lamps with arch-shaped support rod are provided. Such floor lamps include a cap and a dome-shaped wall projecting from the top of the cap which is provided with a plurality of through-holes. An LED optical group provides a dissipation plate in contact with the dome-shaped wall. The plate has a plurality of holes or open curvilinear recesses along the peripheral edge, arranged substantially to conceal from the observer the dissipation wall.

First claim

The invention claimed is:

1. A lighting device comprising:
a base;
a support rod projecting from the base, comprising an arched section;
a diffuser group supported by the rod, comprising a cap, the cap having an upper aperture, and a dome-shaped wall positioned within the upper aperture of the cap and projecting upwardly from the aperture which dome-shaped wall is provided with a plurality of through holes; and
an optical group comprising an LED light source including at least one LED, a dissipator group, to which the LED light source is connected, positioned inside the dome-shaped wall;
wherein the optical group comprises a dissipation plate which comprises a plurality of holes or open curvilinear recesses along its peripheral edge shaped to match the shape of the through holes, so that the dissipation plate is concealed from the observer;
and wherein the dissipation plate is placed internally to the dome-shaped wall to adhere to an inner surface of the dome-shaped wall.

2. The device of claim 1 , wherein the optical group comprises a driver for piloting the at least one LED, coupled to the dissipation plate and connected to the LED light source.

3. The device of claim 2 , comprising a connector positioned at an end of the rod and electrically powered, the support rod configured to pass through the dome-shaped wall and connected to the driver group.

4. The device of claim 1 , comprising a bell onto which the cap fits in a mobile manner, wherein a portion of the bell forms the dome-shaped wall.

5. The device of claim 4 , wherein the optical group comprises a driver for piloting the LEDs, coupled to the dissipation plate and connected to the LED light source.

6. The device of claim 5 , comprising a connector positioned at the end of the rod and electrically powered, the support rod configured to pass through the dome-shaped wall and connected to the driver group.

7. The device of claim 1 , wherein the dissipation plate is concave so as to adhere to the inner surface of the dome-shaped wall.

8. The device of claim 7 , wherein the optical group comprises a driver for piloting the at least one LED, coupled to the dissipation plate and connected to the LED light source.

9. The device of claim 8 , comprising a connector positioned at the end of the rod and electrically powered, the support rod configured to pass through the dome-shaped wall and connected to the driver group.

10. The device of claim 7 , comprising a bell onto which the cap fits in a mobile manner, wherein a portion of the bell forms the dome-shaped wall.

11. The device of claim 10 , wherein the optical group comprises a driver for piloting the at least one LED, coupled to the dissipation plate and connected to the LED light source.

12. The device of claim 11 , comprising a connector positioned at the end of the rod which is electrically powered, the support rod configured to pass through the dome-shaped connect and connected to the driver group.

Assignees

• Gandini Piero
• Flos Spa

Inventors

• Gandini Piero

Classifications

• F21V29/83

  the elements having apertures, ducts or channels, e.g. heat radiation holes · CPC title

• F21V29/70

  characterised by passive heat-dissipating elements, e.g. heat-sinks · CPC title

• F21V29/506

  of globes, bowls or cover glasses · CPC title

• F21V3/00

  Globes; Bowls; Cover glasses (with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506) · CPC title

• F21V23/006

  the substrate being distinct from the light source holder · CPC title