1. Field of the Invention
This present invention relates to a light-emitting diode illuminating equipment, and more particularly relates to a light-emitting diode illuminating equipment with a secondary optics device for generating a specific light pattern.
2. Description of the Prior Art
A light-emitting diode (LED) has advantages of power saving, vibration resistance, fast response, production ability, and so on, so the illuminating equipment with light sources of LEDs is currently being studied and developed. Please refer to
Accordingly, there is a need to provide a light-emitting diode illuminating equipment capable of providing a specific light pattern, so as to solve the problems mentioned above.
A scope of the invention is to provide a light-emitting diode illuminating equipment.
Another scope of the invention is to provide a light-emitting diode illuminating equipment with a secondary optics device for generating a specific light pattern.
According to a preferred embodiment, a light-emitting diode illuminating equipment of the invention includes a heat-dissipating plate device, M heat-conducting devices, N diode light-emitting apparatuses, P optical devices, a hollow barrel, and a transparent shield, wherein M, N, and P are natural numbers, N is larger or equal to M, and P is smaller or equal to N. The heat-dissipating plate device includes a first surface and a second surface opposite to the first surface. A plurality of heat-dissipating fins extends from the second surface. Each of the heat-conducting devices includes a first portion and a second portion extending from the first portion and including a flat end. Each of the diode light-emitting apparatuses corresponds to one of the M heat-conducting devices. Each of the diode light-emitting apparatuses is disposed on the flat end of the corresponding heat-conducting device and converts an electric energy into a light. Because N is larger or equal to M, there is at least one of the diode light-emitting apparatuses disposed on the flat end of one of the heat-conducting devices.
Each of the optical devices corresponds to at least one of the diode light-emitting apparatuses for modulating the light pattern of the corresponding diode light-emitting apparatus. The hollow barrel includes a first circumference and a second circumference. The hollow barrel is engaged through the first circumference to the heat-dissipating plate device to expose the heat-dissipating fins to the air and to form a space for accommodating the heat-conducting devices and the diode light-emitting apparatuses. The transparent shield is engaged to the second circumference of the hollow barrel.
According to the preferred embodiment, the light-emitting diode illuminating equipment further includes a partition plate device which is disposed in the hollow barrel to divide the space into a first room and a second room. The partition plate device thereon forms Q holes, wherein Q is a natural number, and Q is smaller or equal to N. Each of the diode light-emitting apparatuses corresponds to one of the holes. Because Q is smaller or equal to N, one of the holes corresponds to at least one of the diode light-emitting apparatuses.
Furthermore, each of the optical devices includes a support and a lens. The support is detachable to be engaged to the partition plate device. The support includes a first opening and a second opening. The first opening is used for the support being detachable to be engaged to the partition plate device. The second opening is used for accommodating the lens. Therein, the lens could be an elliptic lens, a circular lens, a cats-eye-like lens, an irregular lens, a polygon lens, or other type of lens (or a set of lenses). According to the preferred embodiment, the lens is a cat's-eye-like lens. The lens includes a surface where a groove is formed along an ellipse minor axis of the lens, such that the light emitted through the lens could form a light pattern satisfying a specific request.
Therefore, the light emitted from the diode light-emitting apparatuses could form an anisotropic light pattern satisfies a specific request, such as road illumination. In a practical application, the light-emitting diode illuminating equipment of the invention could generate a light pattern satisfying the purpose by adjusting and designing the lens for a different purpose.
The advantage and spirit of the invention may be understood by the following recitations together with the appended drawings.
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According to the preferred embodiment, the light-emitting diode illuminating equipment 1 of the invention includes a heat-dissipating plate device 11, six first heat-conducting devices 12, six diode light-emitting apparatuses 13, six optical devices 14, a hollow barrel 15, and a transparent shield 16. The heat-dissipating plate device 11 includes a first surface 112 and a second surface 114 opposite to the first surface 112. A plurality of heat-dissipating fins 17 extend from the second surface 114 and are exposed to the air. Each of the first heat-conducting 12 includes a first portion 122 and a second portion 124 which extends from the first portion 122 and includes a flat end 126.
Each of the diode light-emitting apparatuses 13 corresponds to one of the first heat-conducting devices 12. Each of the diode light-emitting apparatuses 13 is flat mounted on the flat end 126 of the corresponding first heat-conducting device 12 and converts an electric energy into a light. Thereby, heat produced in operation by each of the diode light-emitting apparatus 13 is transferred through the flat end 126, the second portion 124, and the first portion 122 of the corresponding first heat-conducting device 12 to the heat-dissipating plate device 11 and the heat-dissipating fins 17, and then the heat is dissipated out of the heat-dissipating plate device 11 and the heat-dissipating fins 17.
The heat-dissipating plate device 11 of the light-emitting diode illuminating equipment 1 includes six first grooves (not denoted in the figures) formed on the first surface 112 of the heat-dissipating plate device 11. Each of the grooves corresponds to one of the first heat-conducting devices 12, and the shape thereof is adapted to the profile of the first portion 122 of the corresponding first heat-conducting device 12 to tight contact for enhancing the heat-dissipating efficiency. Besides, a heat-conducting material is filled between the first portion 122 of each of the first heat-conducting devices 12 and the corresponding first groove for further enhancing the heat-dissipating efficiency.
In addition, according to the preferred embodiment, the light-emitting diode illuminating equipment 1 includes two second heat-conducting devices 18 tight mounted on the first surface 112 of the heat-dissipating plate device 11 for enhancing the heat-dissipating effect of the heat-dissipating plate device 11 and the heat-dissipating fins 17. As the preferred embodiment shows, the second heat-conducting devices 18 and the first heat-conducting devices 12 are interleaved, which gains a better heat-dissipating effect. Besides, the heat-dissipating plate device 11 includes two second grooves (not denoted in the figures) formed on the first surface 112 of the heat-dissipating plate device 11. Each of the second grooves corresponds to one of the second heat-conducting devices 18, and the shape thereof is adapted to the profile of the corresponding second heat-conducting device 18 to tight contact for enhancing the heat-dissipating efficiency. A heat-conducting material is filled between each of the second heat-conducting devices 18 and the corresponding second groove for further enhancing the heat-dissipating efficiency. Furthermore, the quantity and the configuration of the second heat-conducting devices 18 could be different from the description above, but depends on the whole product structure and operation environment. In principle, the heat-dissipating plate device 11 could gain a good heat-dissipating effect based on the interleaved configuration mentioned above.
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According to the preferred embodiment, each of the optical devices 14 corresponds to one of the diode light-emitting apparatuses 13 for modulating the light pattern of the corresponding diode light-emitting apparatus 13. The hollow barrel 15 is engaged through a circumference thereof to the heat-dissipating plate device 11 to expose the heat-dissipating fins 17 to the air and to form a space S for accommodating the first heat-conducting devices 12 and the diode light-emitting apparatuses 13. The transparent shield 16 is engaged through another circumference of the hollow barrel 15 to seal the space S. But the space S is not necessary to be sealed in the invention. Therein, the hollow barrel 15 is further engaged to the heat-dissipating plate device 11 through a heat-insulating ring 19 so as to reduce or insulate the heat transferred from the heat-dissipating plate device 11 and to make a situation of the light-emitting diode illuminating equipment 1 with top hot and down cold, which is conducive to dissipating heat more.
By the way, the hollow barrel 15 and the transparent shield 16 of the light-emitting diode illuminating equipment 1 of the invention could be made in one piece. For example, the material of the hollow barrel 15 could be engineering plastic, and the transparent shield 16 is inserted in insert molding to make the hollow barrel 15 and the transparent shield 16 in one piece. Alternatively, the material of the transparent shield 16 could also be engineering plastic, and the hollow barrel 15 and the transparent shield 16 could be formed in one piece by injecting in the same die. At this case, if the material of the hollow barrel 15 is the same as the material of the transparent shield 16, the injected product is physically an object which includes the hollow barrel 15 and the transparent shield 16.
According to the preferred embodiment, the light-emitting diode illuminating equipment 1 further includes a partition plate device 20 disposed in the hollow barrel 15 to divide the space S into a first room S1 and a second room S2. The partition plate device 20 thereon forms six first holes 202. Each of the diode light-emitting apparatuses 13 corresponds to one of the first holes 202. According to the preferred embodiment, each of the diode light-emitting apparatuses 13 passes through the corresponding first hole 202 to be disposed in the second room S2 (or in the corresponding first hole 202). The partition plate device 20 could assist in mounting the diode light-emitting apparatuses 13 or the first heat-conducting devices 12. In a practical application, the position of the diode light-emitting apparatuses 13 relative to the partition plate device 20 is not limited to the above.
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According to the preferred embodiment, the light-emitting diode illuminating equipment 1 further includes a heat-insulating plate device 21 disposed in the first room S1 to divide the first room S1 into a third room S12 and a fourth room S14. The heat-insulating plate device 21 thereon forms six second holes 212. The second portion 124 of each of the first heat-conducting devices 12 corresponds to one of the second holes 212 and passes through the corresponding second hole 212, as shown in
It is noticed that each of the first heat-conducting devices 12 of the light-emitting diode illuminating equipment 1 according to the preferred embodiment corresponds to one of the diode light-emitting apparatuses 13, but the invention is not limited to this. For example, several of the diode light-emitting apparatuses 13 are disposed on the flat end 126′ of one of the heat-conducting devices 12. At this case, the flat end 126′ may be formed by pressing the second portion 124′ for allowing the several diode light-emitting apparatuses 13 disposed thereon, as shown in
Similarly, each of the optical devices 14 is not limited to correspond to only one of the diode light-emitting apparatuses 13. One of the optical devices 14 could correspond to several of the diode light-emitting apparatuses 13 and the lens 144 of the optical device 14 could concurrently modulate the light pattern of the corresponding diode light-emitting apparatus 13. The fore-mentioned description about the engagement structure of the optical devices 14 is also applied to here. For example, when one of the optical devices 14 is engaged to the partition plate device 20, the optical device 14 covers several of the diode light-emitting apparatuses 13, as shown in
In addition, the corresponding relation of the first holes 202 of the partition plate device 20 and the diode light-emitting apparatuses 13 is also various as the above. For example, one of the first holes 202 corresponds to several of the diode light-emitting apparatuses 13. The corresponding diode light-emitting apparatuses 13 may be disposed on the same first heat-conducting device 12 or on different first heat-conducting devices 12. Furthermore, the shape of the first hole 202 is not limited to be circular, but depends on the actual design. For example, the first hole 202 may correspond to several of the diode light-emitting apparatuses 13, and the disposition of the several diode light-emitting apparatuses 13 and the first heat-conducting device 12 is similar to that in
By the way, the above descriptions are based on the same lens. However, in a practical application, the diode light-emitting apparatuses could correspond to different lenses respectively, or a part of the diode light-emitting apparatuses corresponds to the same lens and the other part of the diode light-emitting apparatuses corresponds to different lenses, so as to gain diversified light patterns. In addition, in the above embodiments, the first heat-conducting devices 12 or the second heat-conducting devices 18 respectively could be a heat pipe, a heat column, a vapor chamber, or other heat-conducting device. The first heat-conducting devices 12 or the second heat-conducting devices 18 respectively could be made of copper, aluminum, or other material with high heat-conducting efficiency. One of the diode light-emitting apparatuses 13 includes at least one light-emitting diode or at least one laser diode. Besides, the light-emitting apparatus 13 could include light-emitting diodes of different colors.
As described above, the light-emitting diode illuminating equipment of the invention is designed with secondary optics and adjusts the optical devices to generate light patterns of the light emitted from the diode light-emitting apparatuses to satisfy different purposes. Besides, the light-emitting diode illuminating equipment could generate various light patterns by adjusting and designing the optical devices to satisfy more diversified purposes. It is noticed that the above embodiments are based on a street light, but the invention is not limited to this. The invention is applied for any request of illumination, especially the request for a specific light pattern.
With the example and explanations above, the features and spirits of the invention will be hopefully well described. Those skilled in the art will readily observe that numerous modifications and alterations of the device may be made while retaining the teaching of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
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