TW201314101A - LED lamp capable of increasing light diffusion area - Google Patents

Abstract

A LED lamp capable of increasing light diffusion area includes a lamp holder, a lampshade covering the lamp holder, a light emitting module mounted on the lamp holder, and at least one diffusing member connected to the lamp holder. The lamp holder has a top surface. An accommodating space is defined between the lampshade and the top surface of the lamp holder. The diffusing member is arranged inside the accommodating space and connected to the lamp holder, and includes a reflecting surface facing the light emitting module for reflecting partial light emitted by the light emitting module. Since the reflecting surface is set to face the light emitting module, the partial light emitted by the light emitting module is reflected outwardly by the reflecting surface of the diffusing member, so as to allow the light emitted by the light emitting module to have a larger and more diffusing irradiation area.

Description

LED lamp with increased light diffusion area

The present invention relates to a light-emitting device, and more particularly to an LED lamp having an increased light diffusion area.

The light-emitting diode (LED) has the advantages of low power consumption and long service life, and gradually replaces the traditional light bulb. Since the light emitted by the light-emitting diode has better light collecting property, it is widely used in flashlights and warning lights. For lamps with high light directivity requirements, but relatively indoor lighting, fluorescent lamps, etc., which are more suitable for diffused light sources, it is still not suitable for use with light-emitting diode bulbs. Therefore, related companies have proposed to increase the number of light-emitting diode bulbs. The way the source diffuses.

Referring to FIG. 1 and FIG. 2, it is a new patent case of the Republic of China Announcement No. M391631 "LED bulb with increased light divergence angle". The bulb 1 comprises a lamp holder 11 and a light-transmitting lamp cover 12 disposed on the lamp holder 11. An LED illuminating member 13 is disposed on the socket 11, and a plurality of optical diffusing particles 14 (only one is shown in FIG. 2) are mixed between the outer surface and the inner surface of the transparent lamp cover 12, and the LED illuminating member 13 is emitted. When the light passes through the optical diffusing particles 14 in the light-transmitting cover 12, the reflection, refraction and scattering effects as shown in FIG. 2 are generated, and the divergence angle of the light emission is changed, thereby achieving the effect of increasing the light divergence angle. However, in the manufacture of the light-transmitting lamp cover 12 of the bulb 1 , the optical diffusion particles 14 need to be additionally mixed, and it is difficult to control the uniformity of the optical diffusion particles 14 in the manufacturing, so that each light-transmitting lamp cover 12 increases the light divergence angle. The effect is different, and the yield of the product is not easy to grasp.

Accordingly, it is an object of the present invention to provide an LED lamp having an increased light diffusion area which is capable of effectively improving the light diffusion illumination angle and having a simple structure.

Therefore, the LED lamp with increased light diffusion area of the present invention comprises a lamp holder, a lamp cover disposed on the lamp holder, a light-emitting module disposed on the lamp holder, and at least one connected to the lamp holder Diffusion member.

The lamp holder has a top surface, and the lamp cover cooperates with the top surface of the lamp holder to define an accommodating space. The illuminating module includes a plurality of first illuminating members disposed on the top surface of the lamp holder and spaced apart.

The diffusing member is disposed in the accommodating space and connected to the lamp holder, and the diffusing member includes a reflecting surface facing the illuminating module and reflecting a part of the light emitted by the first illuminating members.

The effect of the present invention is that since the reflecting surface faces the light emitting module and reflects part of the light emitted by the first light emitting members, the reflecting surface of the diffusing member causes a portion of the light emitted by the first light emitting members to External reflection, while part of the light still maintains the illumination direction, so that the light emitted by the illumination module will have a larger, more diffused illumination area.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of FIG.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 3, a first preferred embodiment of an LED lamp with a light diffusion area according to the present invention includes a lamp holder 2, a lamp cover 3 disposed on the lamp holder 2, and a light-emitting device disposed on the lamp holder 2. The module 4 and a plurality of diffusers 5 connected to the socket 2 .

The lamp holder 2 includes a heat dissipating portion 21, and a power supply portion 22 connected to the heat dissipating portion 21 and electrically connected to the light emitting module 4, and the heat dissipating portion 21 has a top surface 211, the lamp cover 3 and the lamp holder The top surface 211 of 2 cooperates to define an accommodating space 300.

Referring to FIG. 4 , the light-emitting module 4 includes a plurality of first light-emitting members 41 arranged in a ring shape on the top surface 211 of the lamp holder 2 , and is disposed on the lamp holder 2 and surrounds the first light-emitting elements. The second illuminating member 42 of the member 41, the first illuminating member 41 and the second illuminating members 42 both emit light toward a first direction. In the embodiment, the first illuminating members 41 and the second The illuminating member 42 is made of a light emitting diode (LED), and the first direction is exemplified by a direction indicated by an arrow A in FIG.

Referring to FIG. 3 and FIG. 4, the diffusing members 5 are disposed in the accommodating space 300 and are disposed on the path of the light emitted by the first illuminating members 41, and the bottom portion of the diffusing member. 5 is connected to the socket 2, each of the diffusing members 5 includes a reflecting surface 51 protruding from the lampshade 3 toward the light emitting module 4 and reflecting the light emitted by the first light emitting members 41, and a The reflecting surfaces 51 are spaced apart and face the refractive surface 52 of the globe 3. It should be noted that in the present embodiment, the diffusing members 5 are made of a partially transparent material, but may be made of a material that is opaque.

Referring to FIG. 5, when the power supply portion 22 (see FIG. 3) of the socket 2 is electrically connected to a power socket (not shown), the light-emitting module 4 emits light, and the light-emitting module 4 emits light when it is illuminated. The generated heat is absorbed by the heat dissipating portion 21 of the socket 2, and is exchanged with the outside air for heat dissipation. It should be noted that the aspect of the heat dissipating portion 21 is not limited to the drawing, and may be A plurality of holes are formed in the heat radiating portion 21 to increase the heat exchange area and facilitate air convection.

The light emitted by the first illuminating member 41 of the illuminating module 4 is affected by the diffusing members 5, and part of the light is reflected by the reflecting surface 51 of each diffusing member 5, and then diffused to both sides, and some of them are diffused. The light enters the diffusing members 5 and is deflected by the refracting surface 52 of each diffusing member 5 and deflected toward the center. However, since some of the light is reflected to the sides, the light deflected toward the center does not The illumination of the first illuminating member 4 of the illuminating module 4 is wide, the irradiation angle is large, and the diffusing members are generated. 5 Because the light rays emitted by the second illuminating members 42 are not in the path of the light emitted by the second illuminating members 42, the light emitted from the second illuminating members 42 is not affected by the diffusing members 5, and remains emitted toward the first direction. In addition, if the diffusing members 5 are made of a material that is opaque, the light emitted by the first illuminating members 41 will be reflected by the diffusing members 5 to both sides without being refracted.

Referring to FIG. 6 and FIG. 7, a second preferred embodiment of the LED lamp with increased light diffusion area of the present invention is substantially the same as the first preferred embodiment, except that the diffusing member 5 is annular and The light-transmissive surface 53 is disposed on the reflective surface 51 and is used for allowing light to pass through, and the reflective surface 51 is slightly inclined toward the first light-emitting members 41. In addition, in the preferred embodiment, The second illuminating members 42 are disposed.

Thereby, the first illuminating member 41 emits light toward the diffusing member 5, and some of the light is reflected by the reflecting surface 51 and then emitted to the two sides, and part of the light passes through the transparent surface 53 and is emitted. In addition, the first illuminating members 41 emit light that is not directed toward the diffusing member 5 and still emits toward the first direction, so that the same effect as the first preferred embodiment can be achieved, and since the second The illuminating member 42 can further reduce energy consumption and heat generation.

It should be noted that, in this embodiment, the reflecting surface 51 of the diffusing member 5 is formed by coating with a high reflectivity metal such as silver or aluminum, but is not limited thereto.

Referring to FIG. 8 and FIG. 9 , the third preferred embodiment of the LED lamp with increased light diffusion area of the present invention is substantially the same as the first preferred embodiment, except that the first light-emitting component 41 of the light-emitting module 4 is 41 . The second illuminating member 42 is juxtaposed in parallel with the first illuminating member 41 and adjacent to the outer edge of the top surface 211 of the lamp holder 2 at two intervals in a row and adjacent to the center of the top surface 211 of the lamp holder 2. In the present embodiment, it is used as a fluorescent lamp, and the diffusing light of the first illuminating members 41 is also reflected by the diffusing members 5 to have a diffused irradiation area effect.

According to the arrangement of the diffusing members 5, the light of the first illuminating members 41 is emitted to the two sides by reflection, so that there is a diffused irradiation area and angle, and the diffusing members 5 can be applied to the present. In some cases, the structure of the lamp is simple and does not need to change the manufacturing method of the other components, and the heat dissipating portion 21 of the lamp holder 2 enables the heat of the light-emitting module 4 to be quickly extracted and dispersed to maintain the luminous efficiency of the light-emitting module 4.

In summary, the LED lamp with the increased light diffusion area of the present invention is arranged such that the light of the first illuminating member 41 is emitted to the two sides by reflection, and the second illuminating member 42 is disposed. The emitted light is unaffected, and sufficient illumination is provided in the first direction. The light emitted by the two cooperates to provide a more diffused illumination area and illumination angle, so that the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

2. . . Lamp holder

twenty one. . . Heat sink

211. . . Top surface

twenty two. . . Power supply department

3. . . lampshade

300. . . Housing space

4. . . Light module

41. . . First illuminating member

42. . . Second illuminating member

5. . . Diffusion member

51. . . Reflective surface

52. . . Refractive surface

53. . . Translucent surface

A. . . arrow

Figure 1 is a cross-sectional view showing the new patent case of the Republic of China Announcement No. M391631 "LED bulbs capable of increasing the light divergence angle";

Figure 2 is a cross-sectional view showing a lampshade of the bulb of Figure 1 mixed with a plurality of optical diffusing particles;

Figure 3 is a front elevational view showing a first preferred embodiment of the LED lamp of the present invention having an increased light diffusion area;

Figure 4 is a top view, to help explain Figure 3;

Figure 5 is a partial cross-sectional view showing the optical path of the light emitted by the light-emitting module of the first preferred embodiment;

Figure 6 is a top plan view showing a second preferred embodiment of the LED lamp of the present invention having an increased light diffusion area;

Figure 7 is a side view showing the optical path of the light emitted by the light-emitting module of the second preferred embodiment;

Figure 8 is a front elevational view showing a third preferred embodiment of the LED lamp of the present invention having an increased light diffusion area;

Figure 9 is a side elevational view of Figure 8 for assistance.

2. . . Lamp holder

twenty one. . . Heat sink

211. . . Top surface

twenty two. . . Power supply department

3. . . lampshade

300. . . Housing space

4. . . Light module

5. . . Diffusion member

51. . . Reflective surface

52. . . Refractive surface

A. . . arrow

Claims (9)

An LED lamp with an increased light diffusion area, comprising: a lamp holder having a top surface; a lamp cover disposed on the lamp holder and cooperating with a top surface of the lamp holder to define an accommodation space; The module includes a plurality of first illuminating members disposed on the top surface of the lamp holder and spaced apart from each other; and at least one diffusing member disposed in the accommodating space and connected to the lamp holder, the diffusing member including a surface facing The illuminating module reflects a reflecting surface of a portion of the light emitted by the first illuminating members. The LED lamp with an increased light diffusion area according to the first aspect of the patent application, wherein the light-emitting module further includes a plurality of second light-emitting members disposed on a top surface of the lamp holder and surrounding the first light-emitting members. The first illuminating member and the second illuminating members both emit light toward a first direction. An LED lamp having an increased light diffusion area according to claim 2, wherein the diffusing member further comprises a refractive surface spaced apart from the reflecting surface and facing the lamp cover, and the reflecting surface is directed toward the light by the lamp cover The module direction protrudes and reflects part of the light emitted by the first illuminating members. The LED lamp having an increased light diffusion area according to the first aspect of the patent application, wherein the diffusing member is annular, and further includes a plurality of light transmitting surfaces spaced apart from the reflecting surface for allowing light to pass through. The LED lamp having an increased light diffusion area according to the third aspect of the patent application, wherein the lamp holder comprises a heat dissipating portion, and a power supply portion connected to the heat dissipating portion and electrically connected to the light emitting module, the top The surface is formed on the heat dissipation portion. An LED lamp having an increased light diffusion area according to the fifth aspect of the invention, wherein the first illuminating member and the second illuminating member of the illuminating module are juxtaposed in an annular interval. An LED lamp having an increased light diffusion area according to the fifth aspect of the invention, wherein the first illuminating member and the second illuminating member of the illuminating module are juxtaposed in parallel. The LED lamp having an increased light diffusion area according to the first aspect of the patent application, wherein the diffusion member is made of one of the following materials: an opaque material and a partially transparent material. An LED lamp having an increased light diffusion area according to the fourth aspect of the invention, wherein the lamp holder comprises a heat dissipating portion, and a power supply portion connected to the heat dissipating portion and electrically connected to the light emitting module, the top portion The surface is formed on the heat dissipation portion.