Annular-Arranged Lamp Capable of Backward Projecting by Concave Sphere

• US 20140022785A1
• Filed: 09/25/2013
• Published: 01/23/2014
• Est. Priority Date: 08/29/2011
• Status: Active Grant

• Current Assignee: Tai-Her Yang
• Original Assignee: Tai-Her Yang
• Inventors: Yang, Tai-Her
• Granted Patent: US 8,956,016 B2
• Time in Patent Office: Days
• US Class Current: 362/235
• CPC Class Codes: F21V 29/505 of reflectors
• CPC Class Codes: F21V 29/51 using condensation or evaporation of a fluid, e.g. heat pipes
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 7/0008 providing for indirect lighting

Abstract

The annular-arranged lamp capable of backward projecting by concave sphere provided by this invention is mainly provided with a side of an annular heat dissipation device being installed with light emitting devices (102) wherein the lamp is installed with two or more than two light emitting devices (110) arranged in a circular or polygonal means, and the light projecting axial line of each light emitting device (110) is projected towards a reflection device with concave sphere (103) disposed above the annular heat dissipation device (101), light beams of the light emitting devices (110) are reflected by the reflection device with concave sphere (103) then refracted to a preset projection range, thereby forming a unified light source.

Claims

1. An annular-arranged lamp capable of backward projection by a concave sphere (103), in which two or more than two light emitting devices (110) arranged in a circular or polygonal means are annularly installed at a side (102) of an annular heat dissipation device (101), a light projection axial line of each light emitting device being defined in a reverse direction which is 90 degree larger but 180 degree smaller than a preset final projecting direction projecting light emitted by the respective light emitting devices (110) towards a reflection device with the concave sphere (103) disposed above the annular heat dissipation device (101), the projection surface after being reflected by a concave spherical reflection unit (104) of the reflection device with the concave sphere (103) being coaxial with a final projecting direction for illuminating light beams, the light beams reflected by the reflection device with the concave sphere (103) then then refracted to a preset projection range, thereby forming a unified light source, wherein:

the annular heat dissipation device (101) is configured by an annular heat dissipation structure made of a heat conductive material, and combined with the reflection device with the concave sphere (103), wherein the annular heat dissipation device (101) is provided with the side (102) of the annular heat dissipation device (101) to be installed with the two or more light emitting devices (110);

the (102) side of annular heat dissipation device to be installed with light emitting devices (102) is defined at the inner side, upper side or an upward-inclined surface of the annular heat dissipation device (101) for the installation of the two or more light emitting devices (110), for projecting light beams to a concave spherical reflection unit (104) of the reflection device with the concave sphere (103); and

the reflection device with the concave sphere (103) is combined with the annular heat dissipation device (101), the top of the reflection device with the concave sphere (103) is formed as a sphere, and the interior of the sphere is integrally formed with the concave spherical reflection unit (104) for reflecting the light beams from the light emitting devices (110) to the final projecting direction, the concave spherical reflection unit (104) being processed with a polishing or coating treatment or having a separately manufactured high-performance reflection surface capable of being installed inside the top end of the reflection device with the concave sphere (103), an enclosure of the reflection device with the concave sphere (103) being disposed at a top end and the periphery of the annular heat dissipation device (101), wherein a space defined between an annular bottom end of the enclosure of the reflection device with the concave sphere (103) and a bottom end of the side (102) of the annular heat dissipation device (101) to be installed with the light emitting devices (110) is clamped with a light pervious protection sheet (111) through a fastening ring (112), and two sides of the light pervious protection sheet (111) are installed with elastic pads (113).

2. An annular-arranged lamp capable of backward projecting by concave sphere as claimed in claim 1, wherein the mentioned light emitting device (110) includes at least one of the following light emitting devices:

1) a DC light emitting diode (LED);

2) an AC light emitting diode (LED);

3) a gas lamp set;

4) a fluorescent lamp;

5) a lamp bulb.