WO2013007206A1

WO2013007206A1 - Condenser lens applicable in led lighting apparatus

Info

Publication number: WO2013007206A1
Application number: PCT/CN2012/078566
Authority: WO
Inventors: 陈明允; 洪作财
Original assignee: 东莞巨扬电器有限公司
Priority date: 2011-07-12
Filing date: 2012-07-12
Publication date: 2013-01-17

Abstract

A condenser lens (301, 401, and 501) applicable in an LED lighting apparatus, comprising a lens substrate (3011, 4011, and 5011), at lease one condenser lens body (3012, 4012, and 5012) protruding from the lens substrate (3011, 4011, and 5011) and arranged on a top surface of the lens substrate (3011, 4011, and 5011), and an uneven etch (3013, 4014, and 5013) having recessions or protrusions and provided on at least one between an inner surface (30122, 40122, and 50122) and an outer surface (30121, 40121, and 50121) of the condenser lens body (3012, 4012, and 5012). The uneven etch (3013, 4013, and 5013) having recessions or protrusions provides the condenser lens (301, 401, and 501) with increased degree of light condensation, increased transmittance, improved evenness, and glare elimination.

Description

Technical field

The present invention relates to the technical field of concentrating lenses, and more particularly to a concentrating lens for use in an LED illuminating device. Background technique

In the prior art, LED lighting devices are commonly used in various applications in various ways. For example, a fishing light used for fishing, a square light that illuminates a square, a tunnel light that illuminates a tunnel, a street light that illuminates a road, and an advertising billboard or advertising cover. Advertising lights, commonly known as PAR lights, downlights, etc.

In the above, if the illuminating energy of the LED illuminating device is desired to have a good illuminating and concentrating effect, a concentrating lens is usually disposed on the illuminating surface of the LED illuminating device; wherein the concentrating lens may be a single lens or may be a plurality of The composition of the lens.

For example, please refer to FIG. 1 and FIG. 2 , which are respectively a schematic diagram of a stereoscopic concept of an LED advertising lamp, and a schematic diagram of a stereoscopic concept applied to the concentrating lens of the LED advertising lamp; wherein, the LED advertising lamp shown in FIG. 1 1, the light emitting surface has four groups of LED light groups 10 from top to bottom; wherein each LED light group 10 is equipped with a collecting lens 101, each of which has a lens base 1011 forming a large flat plate. And a plurality of concentrating mirror bodies 1012 protruding from the large flat plate (lens base) 1011 are disposed on the top surface of the large flat plate (lens base) 1011, and the concentrating mirror bodies 1012 are corresponding to the plurality of LED lamp granules (not shown) The LED light particles are disposed between the circuit board (not shown) and the collecting lens 101, and are located below the corresponding concentrating mirror body 1012, so that each concentrating mirror body 1012 can be assembled correspondingly. The light emitted by the LED light particles.

Of course, the above FIG. 1 and FIG. 2 are only an embodiment. Therefore, any equal variation design can be performed by those skilled in the art according to actual application requirements. For example, FIG. 3 is another LED advertising lamp. A three-dimensional conceptual diagram; that is, in the advertising lamp 2 shown in FIG. 3, the light-emitting surface has only one set of LED light groups 20 from top to bottom; wherein the LED light group 20 is equipped with a plurality of collecting lenses 201, each condensing mirror Each of the sheets 201 has a lens substrate 2011 forming a small flat plate, and a plurality of concentrating mirror bodies 2012 protruding from the small flat plate (lens substrate) 2011 are disposed on the top surface of the small flat plate (lens substrate) 2011, and these are The concentrating mirror body 2012 is disposed corresponding to a plurality of LED lamp particles 202; wherein each LED lamp granule 202 is set Between the circuit board 203 and the concentrating lens 201, and below the corresponding concentrating mirror body 2012, each concentrating mirror body 2012 can gather the light output by the corresponding LED lamp granules 202.

However, the above-mentioned conventional concentrating lenses 101 and 201 still have deficiencies in structural design. One of the main reasons is that the inner or outer surfaces of the concentrating mirror bodies 1012 and 2012 of the above-mentioned conventional concentrating lenses 101 and 201 are one. A flat or smooth surface, so that the light that is irradiated through the concentrating mirror bodies 1012, 2012 is not highly concentrated, and the spin-rotation performance is also poor. Moreover, the light rays emitted by the concentrating mirror bodies 1012 and 2012 are generally uneven, so that the intensity of the light in the central area of the illumination is large, but the intensity of the light in the peripheral area is small, resulting in Concentration or illumination is poor, so it is still necessary to improve. Summary of the invention

In view of the deficiencies of the prior art, the object of the present invention is to provide a concentrating lens for use in an LED lighting device which has good poly-rotation performance, high light transmittance, and can make the illuminating light more concentrated without blinking.

In order to achieve the above object, the technical solution adopted by the present invention provides a concentrating lens applied to an LED illuminating device, comprising a concentrating mirror body, at least one of an inner surface and an outer surface of the condensing mirror body is provided with a concave etched pattern At least one of the raised etched lines.

Preferably, the concentrating lens further comprises a lens base, and the illuminating lens body is disposed on the top surface of the lens substrate at least one protruding from the lens substrate.

Preferably, the lens substrate is a flat plate, and the condensing lens body is integrally formed on the top surface of the lens substrate.

Preferably, the concentrating mirror body and the lens substrate together form a single concentrating lens, or the lens substrate is a large flat plate, and a plurality of concentrating mirrors protruding from the large slab are disposed on the top surface of the large slab.

Preferably, the recessed etch is provided as a circular recess recessed in at least one of the inner surface and the outer surface of the concentrating mirror body, or the raised etch is arranged to be convex at the condensing mirror a circular bump of the inner surface of the body and at least one of the outer surfaces.

Preferably, the recessed etch is provided as a shape irregular recess recessed in at least one of the inner surface and the outer surface of the concentrating mirror body, or the raised etch is provided as a protrusion An irregularly shaped bump of the inner surface of the concentrating mirror body and at least one of the outer surfaces.

Preferably, the transverse cross-sectional shape of the concentrating mirror body is curved, and the inner surface of the concentrating mirror body is square. The utility model is formed into an arc-shaped accommodating cavity for accommodating the LED lamp particles.

Another technical solution adopted by the present invention is to provide a collecting lens applied to an LED lighting device, comprising a collecting mirror body, at least one of an inner surface and an outer surface of the collecting mirror body is provided with non-flat etching, and the The lateral cross-sectional shape of the concentrating mirror body is curved, so that an arc-shaped accommodating cavity for accommodating the LED lamp granules is formed below the inner surface of the concentrating mirror body.

Preferably, the concentrating lens further comprises a lens base, and the illuminating body of the lens substrate is disposed on the top surface of the lens substrate.

Preferably, the lens substrate is provided as a flat plate, and the condensing lens body is integrally formed on the top surface of the lens substrate.

Preferably, the non-flat etch is provided as a circular recess recessed in at least one of the inner surface and the outer surface of the concentrating mirror body, or the non-flat etched surface is disposed as a bulge in the condensing mirror a circular bump of the inner surface of the body and at least one of the outer surfaces.

Preferably, the non-flat etch is provided as a shape irregular recess recessed in at least one of the inner surface and the outer surface of the concentrating mirror body, or the non-flat etched surface is disposed as a protrusion An irregularly shaped bump of the inner surface of the concentrating mirror body and at least one of the outer surfaces.

Another technical solution adopted by the present invention is to provide a collecting lens for an LED lighting device, comprising a lens base body, and a top surface of the lens substrate is provided with at least one collecting mirror body protruding from the lens substrate. At least one of the inner surface and the outer surface of the concentrating mirror body is provided with an uneven etch.

Preferably, the non-planar etch is disposed to be concave in the inner surface of the concentrating mirror body and the outer surface One of the irregularly shaped recesses, or the non-flat embossing, is provided as a shape-shaped irregular bump that protrudes from at least one of the inner surface and the outer surface of the concentrating mirror body.

After adopting the above structure, the present invention has advantages over the prior art in that: the inner surface and the outer surface of the concentrating lens are respectively provided with non-flat or non-smooth etches such as concave or convex, Increasing the poly-rotation performance of the concentrating lens, when the light passes through the concentrating lens, after being refracted by non-flat or non-smooth etches such as concave or convex, the light passing through the concentrating lens can be more concentrated, and the condensing light is condensed. Better sex and high light transmission, and the illuminating lens through the refracting of the illuminating lens will be more uniform without blinking.

The invention will now be further described with reference to the drawings and preferred embodiments. DRAWINGS

1 is a schematic perspective view of a LED advertising lamp.

Fig. 2 is a perspective conceptual view of a collecting lens applied to the aforementioned LED advertising lamp.

Fig. 3 is a schematic perspective view of another LED advertising lamp.

Figure 4 is a top plan view of a first preferred embodiment of the present invention.

Figure 5 is a bottom plan view showing a first preferred embodiment of the present invention.

Figure 6 is a cross-sectional view taken along line A-A of Figure 5 .

Figure 7 is a top plan view showing a second preferred embodiment of the present invention.

Figure 8 is a bottom plan view showing a second preferred embodiment of the present invention.

Figure 9 is a cross-sectional view taken along line B-B of Figure 8.

Figure 10 is a top plan view showing a third preferred embodiment of the present invention.

Figure 11 is a bottom plan view showing a third preferred embodiment of the present invention.

Figure 12 is a cross-sectional view taken along line C-C of Figure 11 .

detailed description

The following description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Referring to the first preferred embodiment of the present invention, please refer to the top view, the bottom view and the cross-sectional view along the AA direction in FIG. 5 as shown in FIG. 4 to FIG. 6 : wherein the concentrating lens disclosed in the first preferred embodiment 301, comprising a lens base 3011, and at least a concentrating mirror body 3012 protruding above the lens base 3011 is disposed on a top surface of the lens base 3011.

The feature of this embodiment is that the inner surface 30122 of the concentrating mirror body 3012 is provided with a concave or convex surface, etc. The non-flat etched surface 3013; in addition, the outer surface 30121 of the concentrating mirror body 3012 is maintained as a smooth spherical surface.

Wherein, the etched lines 3013 are disposed as circular recesses recessed in the inner surface 30122 of the concentrating mirror body 3012, the pockets are evenly distributed, or the etched lines 3013 are disposed to be rounded on the inner surface 30122 of the concentrating mirror body 3012. A number of bumps, the bumps are evenly distributed.

In another preferred embodiment, the etched lines 3013 are disposed as recessed recesses having irregular shapes on the inner surface 30122 of the concentrating mirror body 3012, or the etched lines 3013 are disposed to be irregularly shaped in the inner surface 30122 of the concentrating mirror body 3012. Several bumps.

Furthermore, the lens base 3011 can be a large flat plate as shown in FIG. 1, or a small flat plate as shown in FIG. 2, and the condensing mirror body 3012 can be integrally formed on the top surface of the lens base 3011. Moreover, the lateral cross-sectional shape of the concentrating lens body 3012 may be an arc shape, and an arc-shaped accommodating cavity 3014 for accommodating LED lamp particles (not shown) may be disposed under the inner surface 30122 of the concentrating mirror body 3012.

As a result, since the inner surface 30122 of the concentrating lens 301 is provided with a concave or irregular non-flat or irregular etch 3013, the poly-rotation performance of the concentrating lens 301 is further increased by the prior art. When the light passes through the concentrating mirror body 3012 in the concentrating lens 301, the refracting of the concave or convex etched grain 3013 causes the light passing through the condensing lens 301 to be more concentrated, the optical rotation is better, the light transmittance is high, and the condensing mirror is passed through the condensing mirror. After the light of the condensing mirror body 3012 in the sheet 301 is refracted by the etched lines 3013, the illuminating light can be more uniform and the illuminating light is concentrated without blinking.

For a second preferred embodiment of the present invention, please refer to the top view, the bottom view, and the cross-sectional view along the line BB in FIG. 8 as shown in FIG. 7 to FIG. 9 : wherein the concentrating lens disclosed in the second preferred embodiment 401, comprising a lens base 4011, and at least a concentrating mirror body 4012 protruding above the lens base 4011 is disposed on a top surface of the lens base 4011.

The embodiment is characterized in that the outer surface 40121 of the concentrating mirror body 4012 is provided with a non-flat embossing 4013 such as a concave or convex surface; in addition, the inner surface 40122 of the concentrating mirror body 4012 is maintained as a smooth spherical surface.

Wherein, the etched line 4013 is disposed as a plurality of circular recesses recessed in the outer surface 40121 of the concentrating mirror body 4012, the recesses are evenly distributed, or the etched lines 4013 are disposed to be rounded on the outer surface 40121 of the concentrating mirror body 3012. A number of bumps, the bumps are evenly distributed.

In another preferred embodiment, the etched lines 4013 are disposed as recessed recesses having irregular shapes on the outer surface 40121 of the concentrating mirror body 4012, or the etched lines 4013 are disposed to protrude from the outer surface 40121 of the concentrating mirror body 4012. Some bumps with irregular shapes.

Furthermore, the lens base 4011 can be a large flat plate as shown in FIG. 1, or a small flat plate as shown in FIG. 2, and the concentrating mirror body 4012 can be integrally formed on the top surface of the lens base 4011. Moreover, the lateral cross-sectional shape of the condensing lens body 4012 may be an arc shape, and an arc-shaped accommodating cavity 4014 for accommodating LED lamp particles (not shown) may be disposed under the inner surface 40122 of the concentrating mirror body 4012.

Similarly, the outer surface 40121 of the concentrating lens 401 is provided with a concave or irregular non-flat or irregular etched 4013, which will increase the poly-rotation performance of the concentrating lens 401 for the light to pass through. When the condensing lens body 4012 of the condensing lens 401 is refracted by the concave or convex etch 4013, the light passing through the condensing lens 401 is more concentrated, the rotatory rotation is better, the light transmittance is high, and the condensing lens 401 is passed through the condensing lens 401. The light of the concentrating mirror body 4012 is refracted by the etched 4013, and the illuminating light can be more uniform and the illuminating light is concentrated without blinking.

For a third preferred embodiment of the present invention, please refer to the top view, the bottom view, and the CC in FIG. 11 for the third preferred embodiment. The concentrating lens disclosed in the third preferred embodiment 501, comprising a lens base 5011, and a top surface of the lens base 5011 is provided with at least one concentrating mirror body 5012 protruding above the lens base 5011.

The embodiment is characterized in that the inner surface and the outer surface 50121, 50122 of the concentrating mirror body 5012 are provided with non-flat embossing 5013 such as concave or convex.

Wherein, the etch mark 5013 is disposed as a plurality of circular recesses recessed in the inner surface and the outer surface 50121, 50122 of the concentrating mirror body 5012, the pockets are evenly distributed, or the etched lines 5013 are disposed to protrude on the inner surface of the concentrating mirror body 5012. And a plurality of convex points of the outer surface 50121, 50122, the bumps are evenly distributed.

In another preferred embodiment, the etch mark 5013 is disposed as a plurality of recesses that are concave in the shape of the inner and outer surfaces 50121, 50122 of the concentrating mirror body 5012, or the etched lines 5013 are disposed to protrude on the inner surface of the concentrating mirror body 5012. And a plurality of bumps having irregular shapes of the outer surfaces 50121, 50122.

Furthermore, the lens base 5011 can be a large flat plate as shown in FIG. 1, or a small flat plate as shown in FIG. 2, and the concentrating mirror body 5012 can be integrally formed on the top surface of the lens base 5011. Moreover, the lateral cross-sectional shape of the concentrating lens body 5012 may be an arc shape, and an arc-shaped accommodating cavity 5014 for accommodating LED lamp particles (not shown) may be disposed under the inner surface 50122 of the concentrating mirror body 5012.

As a result, since the inner surface and the outer surface 50121, 50122 of the concentrating lens 501 are respectively provided with concave or convex non-flat or irregular etch marks 5013, this will be compared with the foregoing first preferred embodiment or second. The preferred embodiment further increases the spin-rotation performance of the concentrating lens 501 for the light to pass through the concentrating lens 501. When the light microscope body 5012 is refracted by the concave or convex etch mark 5013, the light passing through the condensing lens 501 is more concentrated, the spin rotatory property is better, the light transmittance is high, and the condensing lens body in the condensing lens 501 is passed. After the 5012's light is refracted by the etched 5013, it will be more uniform and the illuminated light will be concentrated and not blinking.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the claims of the present invention, and all equivalent changes or modifications which are not departing from the spirit of the present invention should be included in the present invention. Within the scope of the invention.

Claims

A concentrating lens for use in an LED illuminating device, comprising: a concentrating mirror body, wherein: at least one of an inner surface and an outer surface of the concentrating mirror body is provided with at least one of a concave etch and a raised etch One.

2. The concentrating lens for an LED illuminating device according to claim 1, wherein the concentrating lens further comprises a lens base, and at least one of the top surface of the lens substrate is disposed above the lens substrate. The concentrating mirror body.

3. The concentrating lens for use in an LED illuminating device according to claim 2, wherein the lens substrate is a flat plate, and the condensing lens body is integrally formed on the top surface of the lens substrate.

4. The concentrating lens for an LED illuminating device according to claim 2, wherein: the concentrating mirror body and the lens substrate together form a single concentrating lens, or the lens substrate is a large slab, and the large slab is The top surface is arranged to protrude from the plurality of concentrating mirror bodies above the large flat plate.

5. The collecting lens for an LED lighting device according to claim 1, wherein: the concave etching is provided as one of concavely recessed at least one of the inner surface and the outer surface of the collecting mirror body The circular recess, or the raised etch, is provided as a circular bump that protrudes from at least one of the inner surface and the outer surface of the concentrating mirror body.

6. The collecting lens for an LED lighting device according to claim 1, wherein: the concave etching is provided to be recessed in at least one of the inner surface and the outer surface of the collecting mirror body The irregularly shaped recess, or the raised embossment, is provided as a shape irregular bump that protrudes from at least one of the inner surface and the outer surface of the concentrating mirror body.

The concentrating lens for use in an LED illuminating device according to claim 1, wherein: the concentrating mirror body has an arc-shaped cross-sectional shape, and a condensing mirror body is formed below the inner surface for accommodating the LED lamp. The curved cavity of the grain accommodates the cavity.

8. A concentrating lens for use in an LED illuminating device, comprising: a concentrating mirror body, wherein: at least one of an inner surface and an outer surface of the concentrating mirror body is provided with non-flat etching, and a transverse section of the condensing mirror body The shape is curved, so as to form an arc for accommodating the LED lamp particles under the inner surface of the concentrating mirror body Describe the cavity.

9. The collecting lens for an LED lighting device according to claim 8, wherein the concentrating lens further comprises a lens base, and at least one protruding surface of the lens substrate is disposed on the lens substrate. The concentrating mirror body.

10. The collecting lens for an LED lighting device according to claim 9, wherein the lens base is provided as a flat plate, and the collecting mirror body is integrally formed on a top surface of the lens base.

The concentrating lens for use in an LED illuminating device according to claim 9, wherein: the concentrating mirror body and the lens substrate together form a single concentrating lens, or the lens substrate is a large slab, and the large slab is The top surface is arranged to protrude from the plurality of concentrating mirror bodies above the large flat plate.

12. The concentrating lens for use in an LED lighting device according to claim 8, wherein: the non-flat etch is provided as one of concave at least one of the inner surface and the outer surface of the concentrating mirror body The circular recess, or the non-flat etch, is provided as a circular bump that protrudes from at least one of the inner surface and the outer surface of the concentrating mirror body.

13. The concentrating lens for use in an LED lighting device according to claim 8, wherein: the non-leveling etch is set to be concave on at least one of the inner surface and the outer surface of the concentrating mirror body The irregularly shaped pocket, or the non-planar etch, is provided as a shape-shaped irregular bump that protrudes from at least one of the inner surface and the outer surface of the concentrating mirror body.

14. A concentrating lens for use in an LED illuminating device, comprising a lens substrate, and a concentrating lens body protruding from the lens substrate on a top surface of the lens substrate, wherein: the concentrating lens body At least one of the surface and the outer surface is provided with a non-flat etch.

The concentrating lens for use in an LED illumination device according to claim 14, wherein the lens substrate is provided as a flat plate, and the condensing lens body is integrally formed on a top surface of the lens substrate.

The concentrating lens for use in an LED illuminating device according to claim 14, wherein: the concentrating mirror body and the lens substrate together form a single concentrating lens, or the lens substrate is a large slab, and the large slab is The top surface is arranged to protrude from the plurality of concentrating mirror bodies above the large flat plate.

17. The collecting lens for an LED lighting device according to claim 14, wherein: The non-planar etch is provided as a circular recess recessed in at least one of the inner surface and the outer surface of the concentrating mirror body, or the non-flat etched surface is disposed to be convex within the concentrating mirror body a circular bump of the surface and at least one of the outer surfaces.

18. The concentrating lens for use in an LED lighting device according to claim 14, wherein: the non-planar etch is disposed to be recessed in at least one of the inner surface and the outer surface of the concentrating mirror body The irregularly shaped pocket, or the non-planar etch, is provided as a shape-shaped irregular bump that protrudes from at least one of the inner surface and the outer surface of the concentrating mirror body.