TWM452314U - Thin type LED lens - Google Patents

Description

Thinned light-emitting diode lens

The present invention is a thinned light-emitting diode lens, and particularly refers to a thinned light-emitting diode lens which can reduce the thickness of the lens and is advantageous for manufacturing, and provides better light distribution.

Conventional lens structures are used for many light-emitting modules, and with the advancement of technology, light-emitting modules have been continuously developed to be thinner, lighter, smaller, and at the same time still have to emit a light source with good light distribution effect. In general, in order to adjust the illumination range and the average light intensity in order to meet the actual lighting requirements, the light-emitting diode optical lens needs to further adjust the thickness or the diameter of the light-emitting surface.

As shown in FIG. 1 , FIG. 2 and FIG. 1 , it is a light trace diagram, a light distribution graph and an illuminance diagram of an embodiment of a conventional light-emitting diode lens. The conventional lens body 900 can be combined with light. The diode emitting light source, as shown in the figure, has a maximum light intensity of about 2000 candelas (cd) at the center of the illuminating light source (ω = 0°), and the maximum illuminance at the center position is about 2000 lux in the XZ plane ( Lux). However, the thickness of the conventional lens is relatively thick, so that when applied to the light-emitting module, the overall thickness thereof is relatively increased, so that the size of the light-emitting module is further limited.

As shown in FIG. 3, FIG. 4 and Annex 2, it is a light trace diagram, a light distribution curve diagram and an illuminance diagram of another embodiment of a conventional light-emitting diode lens. Compare this figure to Figure 1 and Figure 3. The lens body 800 in the example is thinner than the previous lens body 900, that is, the lens body 800 of the present embodiment can be obtained by thinning the former lens body 900.

Please refer to FIG. 3, FIG. 4 and Annex 2 together. As shown in the figure, although the lens body 800 reduces the thickness, weight and volume of the lens, the maximum light intensity at the center of the illuminating light source (ω=0°) is about 1300. Candlelight (cd), the maximum illuminance at the center of the XZ plane is approximately 1400 lux. That is to say, if the conventional lens is thinned, the thickness, weight and volume of the lens can be greatly reduced, but the design difficulty is increased, and the irradiation range and effect cannot be achieved.

Therefore, in terms of demand, designing a thin-type light-emitting diode lens can use less material, reduce weight and reduce volume than a general lens, and can combine light-emitting diodes to provide better light distribution, which has become a market application. An urgent issue.

In view of the above-mentioned problems of the prior art, the purpose of the present invention is to provide a material for reducing the manufacture of lenses, and still provide a better light distribution to solve the problems of the prior art.

According to the purpose of the present invention, a thinned light-emitting diode lens is provided, which has a lens body, and the lens system has a slightly truncated inverted pyramid structure, and a light-emitting surface is formed at the non-truncated end of the lens body. The truncated end forms an accommodating chamber, and the accommodating chamber has a main accommodating chamber and at least one accommodating chamber disposed around the main accommodating chamber The main accommodating chamber and the accommodating chamber are arranged in a concentric circle, and the sub-accommodating chamber has a circular groove shape.

In one embodiment, the main accommodating chamber is formed by a side wall surface connection around a bottom surface, wherein the bottom surface is planar, convexly curved or concavely curved with respect to the lens body. The thinned light-emitting diode lens further includes a diffusing portion connected to the lens body and disposed around the light-emitting surface, wherein the surface of the diffusing portion is provided with a plurality of ribs. Further, the light-emitting surface is provided with a plurality of convex granules and is distributed in a dot shape.

In another embodiment, the number of the accommodating chambers is two, and a central area of the illuminating surface is recessed toward the lens body to form a stealing hole. The light exiting surface of the stealing hole is convexly curved with respect to the lens body and is provided with a plurality of convex particles to be distributed in a dot shape.

According to the purpose of the present invention, an embodiment is further provided. The number of the accommodating chambers is two, and the illuminating surface is recessed toward the lens body, and a plurality of convex granules are disposed in the central region to be distributed in a dot shape.

The above and other objects, features and advantages of the present invention will become more apparent and understood.

The embodiments of the thinned light-emitting diode lens according to the present invention will be described below with reference to the related drawings. For the sake of understanding, the same components in the following embodiments are denoted by the same reference numerals.

The thinned light-emitting diode lens of the present invention can be combined with a light-emitting diode to guide the light of the light-emitting diode to produce a better light shape.

Please refer to FIG. 5, FIG. 6 , FIG. 7 and FIG. 3 , which are schematic cross-sectional views, light trace diagrams, light distribution curves and illuminances of the first embodiment of the thinned light-emitting diode lens of the present invention. Figure.

As shown in FIG. 5, the thinned light-emitting diode lens 1 of the present invention has a lens body 100, and the lens body 100 has a slightly truncated inverted pyramid structure, and forms a non-truncated end of the lens body 100. The light exiting surface 11 forms a receiving chamber 12 at the truncated end.

The accommodating chamber 12 has a main accommodating chamber 121 and a primary accommodating chamber 122 disposed around the main accommodating chamber 121, and the main accommodating chamber 121 and the secondary accommodating chamber 122 are arranged in a concentric radial shape, and the secondary chamber is arranged. The chamber 122 surrounds the main accommodating chamber 121 and has a circular groove shape, and the bottom of the groove is sharp. The main receiving chamber 121 is formed by a side wall surface 1211 connected around a bottom surface 1212, and the bottom surface 1212 is planar with respect to the lens body 100.

When the light emitting diode device is disposed in the accommodating chamber 12, as shown in FIGS. 6 and 7, the light emitted by the light emitting diode will penetrate the lens body and cause refraction or reflection, and the light path is biased. Move to form a better lighting effect. At the center of the illuminating light source (ω = 0°), the maximum light intensity is about 2,000 cd (cd), and the light illuminating intensity is stronger between the full angle of about 40°. As shown in Annex 3, in the X-Z plane, the maximum illuminance at the center position is preferably about 2000 lux (lux).

Compared with the conventional lenses 800 and 900 of Figs. 1 and 3, the thinned LED lens 1 of the present invention can reduce the lens material by maintaining the same light intensity and illuminance, that is, It is said that the thinned light-emitting diode lens 1 of the present invention can reduce the volume of the conventional lens body, and is suitable for use in any miniaturized or thinned lamp to avoid occupying too much space.

Next, according to the first embodiment, the second embodiment and the third embodiment are further provided for further exemplification.

Please refer to FIG. 8 , FIG. 9 , FIG. 10 , FIG. 11 and FIG. 4 , which are a perspective view, a cross-sectional view and a trace of the second embodiment of the thinned light-emitting diode lens of the present invention. Figure, light distribution curve and amplitude illuminance map.

As shown in FIGS. 8 and 9, in the present embodiment, the thinned light-emitting diode lens 2 of the present invention is different from the first embodiment in that the light-emitting surface 21 is provided with a plurality of bumps 210. The dots are distributed in a network, and the convex particles 210 can guide the light of the light-emitting diode and form a divergent light path to enhance the light uniformity. The main accommodating chamber 221 is formed by a side wall surface 2211 connected around a bottom surface 2212, wherein the bottom surface 2212 is convexly curved with respect to the lens body 200. The thinned light-emitting diode lens 2 further includes a diffusing portion 201 connected to the lens body 200 and disposed around the light-emitting surface 21, wherein the surface of the diffusing portion 201 is provided with a plurality of ribs 2011, and the ribs 2011 The overall view is arranged in a spiral Set.

As shown in Figs. 10 and 11, the maximum light intensity is about 900 candelas (cd) at the center of the illuminating light source (ω = 0°), and the light irradiation intensity is stronger between the full angles of about 80°. As shown in Annex 4, the maximum illuminance at the center position on the X-Z plane is preferably about 900 lux.

Please refer to FIG. 12, FIG. 13 , FIG. 14 , FIG. 15 and FIG. 5 together, which is a perspective view, a cross-sectional view and a trace of the third embodiment of the thinned light-emitting diode lens of the present invention. Figure, light distribution curve and amplitude illuminance map.

As shown in FIG. 12 and FIG. 13, in the present embodiment, the thinned light-emitting diode lens 3 of the present invention is different from the first embodiment in that the light-emitting surface 31 is recessed toward the lens body 300, and The central portion of the light-emitting surface 31 is provided with a plurality of convex particles 310 and distributed in a dot shape.

The accommodating chamber 32 has a main accommodating chamber 321 and a plurality of sub accommodating chambers 322, and the plurality of sub accommodating chambers 322 include a first accommodating chamber 3221 and a second accommodating chamber 3222. The second accommodating chamber 3222 is disposed around the outer edge of the first accommodating chamber 3221, and the first accommodating chamber 3221 is circumferentially disposed at the edge of the main accommodating chamber 321 to integrally form the main accommodating chamber 321 and The plurality of sub-accommodating chambers 322 are arranged adjacent to each other in concentric circles.

Incidentally, the surface of the cup body of the lens body 300 can be designed into a grid shape, a honeycomb structure design or an atomization treatment to send The light path of the light-emitting diode is dispersed to increase the light uniformity.

As shown in Fig. 14 and Fig. 15, at the center of the illuminating light source (ω = 0°), the maximum light intensity is about 1050 candelas (cd), and the light irradiation intensity is stronger between the full angles of about 88°. As shown in Annex 5, the maximum illuminance at the center position on the X-Z plane is preferably about 1100 lux.

According to the first to third embodiments, the fourth embodiment is further proposed for further exemplification.

Please refer to FIG. 16 and FIG. 17 together, which is a perspective view and a cross-sectional view of a fourth embodiment of the thinned light-emitting diode lens of the present invention. The thinned light-emitting diode lens 4 of the present invention has a lens body 400, and the lens body 400 has a slightly truncated inverted pyramid structure, and a light-emitting surface 41 is formed at the non-truncated end of the lens body 400, and the light-emitting surface 41 is formed. The central area is recessed toward the lens body 400 to form a stealing hole 44. The light exiting surface 41 of the stealing hole 44 is convexly curved with respect to the lens body 400, and can be received on the surface of the light emitting surface 41 when light is emitted. There are a plurality of bumps 410 which are distributed in a dot pattern.

The truncated end is recessed toward the lens body 400 to form an accommodating chamber 42. The accommodating chamber 42 has a main accommodating chamber 421 and a plurality of sub-accommodating chambers 422 disposed around the main accommodating chamber 421. The plurality of secondary accommodating chambers 422 include a first accommodating chamber 4221 and a second accommodating chamber 4222, and the second accommodating chamber 4222 is disposed around the outer edge of the first accommodating chamber 4221, and the second One-time accommodation room 4221 The main accommodating chamber 421 and the second accommodating chambers 422 are arranged in a concentric circle, and the number of the second accommodating chambers 422 is two, and the inner and outer adjacent Arranged in a circular groove.

The main accommodating chamber 421 is formed by a side wall surface 4211 connected around a bottom surface 4212. The bottom surface 4212 is concavely curved with respect to the lens body 400, and can guide the light diverging effect of the illuminating diode.

In addition, the surface of the cup body of the lens body 400 can be designed in a grid shape, a honeycomb structure design or an atomization process to diverge the light path of the light-emitting diode to improve light uniformity.

However, the above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and the equivalent or easy change of the skill of the art is not deviated from the spirit of the present creation. Equal changes and modifications made to the scope of the application shall be covered by the scope of this creation.

1, 2, 3, 4‧‧‧ Thinned Light Emitting Diode Lenses

100, 200, 300, 400, 800, 900‧‧‧ lens body

11, 21, 31, 41‧‧ ‧ light surface

210, 310, 410‧‧‧ convex

12, 22, 32, 42‧‧‧ housing room

121, 221, 321, 421‧‧‧ main room

1211, 2211, 3211, 4211‧‧‧ side wall

1212, 2212, 3212, 4212‧‧‧ bottom

122, 222, 322, 422‧‧ ‧ housing rooms

201‧‧‧Development Department

2011‧‧‧ ribs

3221, 4221‧‧‧First accommodation room

3222, 4222‧‧‧ second housing room

34, 44‧‧ ‧ stealing holes

Fig. 1 is a light trace diagram of an embodiment of a conventional light-emitting diode lens.

Fig. 2 is a light distribution graph of an embodiment of a conventional light-emitting diode lens.

Figure 3 is a light trace of another embodiment of a conventional light-emitting diode lens.

Fig. 4 is a light distribution graph of another embodiment of a conventional light-emitting diode lens.

Fig. 5 is a schematic cross-sectional view showing a first embodiment of the thinned light-emitting diode lens of the present invention.

Fig. 6 is a light trace diagram of the first embodiment of the thinned light-emitting diode lens of the present invention.

Fig. 7 is a light distribution graph of the first embodiment of the thinned light-emitting diode lens of the present invention.

Fig. 8 is a perspective view showing a second embodiment of the thinned light-emitting diode lens of the present invention.

Fig. 9 is a schematic cross-sectional view showing a second embodiment of the thinned light-emitting diode lens of the present invention.

Fig. 10 is a light trace diagram of a second embodiment of the thinned light-emitting diode lens of the present invention.

Fig. 11 is a light distribution graph of the second embodiment of the thinned light-emitting diode lens of the present invention.

Fig. 12 is a perspective view showing a third embodiment of the thinned light-emitting diode lens of the present invention.

Figure 13 is a cross-sectional view showing a third embodiment of the thinned light-emitting diode lens of the present invention.

Fig. 14 is a light trace diagram of a third embodiment of the thinned light-emitting diode lens of the present invention.

Fig. 15 is a light distribution graph of a third embodiment of the thinned light-emitting diode lens of the present invention.

Fig. 16 is a perspective view showing a fourth embodiment of the thinned light-emitting diode lens of the present invention.

Figure 17 is a cross-sectional view showing a fourth embodiment of the thinned light-emitting diode lens of the present invention.

1‧‧‧Thin-shaped LED dipole lens

100‧‧‧ lens body

11‧‧‧Glossy

12‧‧‧ housing room

121‧‧‧Main room

122‧‧‧ times accommodation room

1211‧‧‧ side wall

1212‧‧‧ bottom

Claims (7)

A thinned light-emitting diode lens having a lens body, and the transparent system has a slightly truncated inverted pyramid structure, and a light-emitting surface is formed at a non-truncated end of the lens body, and a truncated end forms an accommodation The chamber is characterized in that: the accommodating chamber has a main accommodating chamber and at least one accommodating chamber disposed around the main accommodating chamber, and the main accommodating chamber and the accommodating chamber are arranged in a concentric radial shape. And the accommodating chamber has a circular groove shape. The thinned light-emitting diode lens according to claim 1, wherein the main accommodating chamber is formed by a side wall surface connection around a bottom surface, wherein the bottom surface is planar and convex relative to the lens body. Arc or concave arc. The thinned light-emitting diode lens according to claim 2, further comprising: a diffusing portion connected to the lens body and disposed around the light-emitting surface, wherein the surface of the diffusing portion is provided with a plurality of ribs . The thinned light-emitting diode lens according to claim 3, wherein the light-emitting surface is provided with a plurality of convex particles and distributed in a dot shape. The thinned light-emitting diode lens according to claim 2, wherein the number of the accommodating chambers is two, and a central area of the light-emitting surface is recessed toward the lens body to form a stealing hole. The thinned light-emitting diode lens according to claim 5, wherein the light-emitting surface of the object is convexly curved with respect to the lens body and is provided with a plurality of convex particles to be distributed in a dot shape. The thinned light-emitting diode lens according to claim 1, wherein the number of the accommodating chambers is two, and the light-emitting surface is recessed toward the lens body, and a plurality of convex portions are disposed in the central region. The granules are distributed in a dot-like manner.