Patent Application
20130215622
1. Field of the Invention
This invention relates to a halo-type LED lamp.
2. Description of the Prior Art
At present, the illumination effect of LED (Light-Emitting Diode) has been elevated greatly in pace with gradual maturity of the technique of LED and hence, LED has been extensively employed as a luminous source of lamps. A conventional LED lamp, as shown in
However, the light of an LED is a straight one and unable to illuminate the circumference of the lamp holder 1 so a place on the ceiling 5, where is adjacent to the lamp holder 1 will become gloomy and the circumference of the lamp holder 1 will form a shadow region. Further, after the conventional LED lamp is installed on the ceiling 5, parts of the structure of the LED lamp will be exposed to the outer side of the ceiling 5. For instance, in the preferred embodiment of the conventional LED lamp, the annularly projecting edge 4 of the lamp holder 1 for covering the reserved orifice 6 of the ceiling 5 is exposed out of the ceiling 5. Therefore, coloring and baking varnish are necessary to be carried out to the lamp holder in order to maintain consistency of decoration of the ceiling 5, not only increasing cost but also resulting in environmental pollution.
The objective of this invention is to offer a halo-type LED lamp that is able to enhance decoration effect and illuminate the circumference of the LED lamp for improving the defect of a conventional LED lamp that is likely to form a shadow area at the circumference of the LED lamp.
The halo-type LED lamp in the present invention includes a lamp holder having one side provided with an accommodating groove that is formed with an opening and installed therein with an LED light source. A light-guiding ring is annularly fixed at the opening of the lamp holder, having an inner annular surface provided with a light incident portion and an outer annular surface disposed with a light-outgoing portion. A lampshade is combined with the light-guiding ring and covered on the opening of the lamp holder.
As described above, the light-guiding ring is mounted at the opening of the lamp holder, and has the inner annular surface and the outer annular surface respectively formed with a light incident portion and a light-outgoing portion; therefore, when the LED light source is started to emit light, a little part of the light will be projected to the light-guiding ring via the light incident portion and, after passing through the light-guiding ring, will be projected out via the light-outgoing portion, thus making the light-guiding ring shine to form a halo around the circumferential edge of the opening of the lamp holder. By so designing, the halo-type LED lamp of this invention can offer illumination to the circumference of the LED lamp, effectively improving the drawback of a conventional LED lamp that is easy to form a shadow area at the circumference of the LED lamp. Moreover, the colored light produced by the light-guiding ring will produce esthetic sense of decoration to the whole space and build a pleasant atmosphere.
This invention will be better understood by referring to the accompanying drawings, wherein:
A preferred embodiment of a halo-type LED lamp 100 in the present invention can be applied to different types of lamps, such as a ceiling lamp, a down light, an electric bulb and a fluorescent lamp, and in this preferred embodiment, the halo-type LED lamp is used as a down light, which is only one of the types mentioned above. The halo-type LED lamp 100 in the present invention, as shown in
The lamp holder 10 has one side provided with an accommodating groove 11 formed with an opening 111 and having an LED light source 12 installed therein. The opening 111 of the lamp holder 10 has its circumferential edge annularly formed with a projecting edge 13 extending outward and bored with a plurality of fixing holes 14.
The light-guiding ring 20 to be fixed around the opening 111 of the lamp hold 10 is made of colored acrylics or optical fiber. Referring to
The lampshade 30 is to be combined with the light-guiding ring 30 and covered on the opening 111 of the lamp holder 10, having its circumferential edge annularly provided with an engage bar 31 to be engaged with the engage groove 24 of the light-guiding ring 20 for securing the lampshade 30 at the inner annular surface of the light-guiding ring 20.
In using, referring to
One feature of this invention is that the light incident portion 22 of the light-guiding ring 20 is an inclined plane provided to face the LED light source 12; therefore, the light incident portion 22 possesses a comparatively large light acceptance area, able to elevate light incident amount of the light-guiding ring 20 and make the light-guiding ring 20 well-illuminated.
Another feature of this invention is that the light-guiding ring 20 is fixed on the lamp holder 10 by respectively inserting the fixing posts 21 in the fixing holes 14; therefore, different-colored light-guiding rings 20 can easily be replaced by a user himself in accordance with needs of different decoration, especially fluorescent colored light-guiding rings 20 to obtain matching effect of different colors, that is, to produce esthetic sense of decoration to the whole space for building a pleasant atmosphere.
In addition, the light-guiding ring 20 fixed around the projecting edge 13 of the lamp holder 10 can function to beautify parts of the lamp holder 10, which are exposed to the outer side of the ceiling 200; therefore, during manufacturing a halo-type LED lamp 100, such manufacturing processes as coloring and baking varnish can be omitted, thus achieving effects of environmental protection and cost saving.
While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.
