TWM485350U - Lighting apparatus with bat wing candlepower distribution - Google Patents

Abstract

The invention presents a lighting apparatus with bat wing candlepower distribution, including a prism sheet, a reflector sheet, a first diffuser sheet and a second diffuser sheet, lowering the cost when using a large quantity of LEDs and creating the best bat wing candlepower distribution, and increasing the distance between one lighting apparatus and another, and lowering the amount of the lighting apparatus, and making the whole space to a homogeneous illumination for the purpose of energy saving and carbon reduction.

Description

Luminaire with batwing light distribution curve

This creation is about a luminaire, especially a luminaire with a batwing type light distribution curve.

Conventional luminaires having a batwing type light distribution curve such as T5 have been widely used in offices and home spaces, for example, as a troffer, and a reflector provided with the grille lamp for The light on the back of the tube reflects to form an illumination with a batwing-type light distribution curve. However, due to the emergence of light-emitted diodes (LEDs), their high luminous efficiency is gradually accepted by the market.

Please refer to FIG. 1 , which is a schematic cross-sectional view showing the structure of another conventional LED lamp, in order to generate a batwing type light distribution curve for each LED light source 10: each phase is disposed on each single LED light source 10 Corresponding lens 20 (lens), the illuminating light 30 emitted by the corresponding lens 20 can form a batwing type light distribution curve; however, in the case where a large number of LED light sources 10 are required for illumination, a separate lens is provided for each LED light source 10. 30 will increase the cost of production.

Please refer to FIG. 2, which is a schematic cross-sectional view of another conventional LED lamp, which uses a plurality of LED light sources 120a, a reflection unit 130, and a single lens unit 149. To reduce the cost of the prior art shown in Figure 1 above. Referring further to FIG. 3, there is shown a light distribution curve generated by the conventional LED lamp of FIG. 2. As can be seen from FIG. 3, although the cost of the one-to-one corresponding multiple lenses is avoided, the prior art However, it is impossible to control the light distribution curve to an optimal batwing curve (ie, the maximum light intensity is between 10 and 45 degrees).

Therefore, it can be seen from the above that in a luminaire having a large number of LED light sources, it is not economical to use a one-to-one corresponding lens to generate a batwing type light distribution curve, but it is not optimal to use only the 稜鏡 unit. The batwing light distribution curve.

In order to solve the above problems of the prior art, an object of the present invention is to provide a luminaire having a batwing type light distribution curve, which can provide a cymbal sheet, a reflection sheet, a first diffusion unit and a second diffusion unit. The component cost is reduced in the use of a large number of LED light sources and at the same time an optimum batwing type light distribution curve can be produced.

It becomes a batwing type light distribution curve, that is, the maximum light intensity is distributed between 10 and 45 degrees. It is suitable for general office or home lighting, which can increase the arrangement distance between the lamps and the lamps, and also reduce the number of configurations of the overall lamps. It can achieve uniform illumination of the overall lighting space and achieve energy saving and carbon saving.

In order to achieve the above object, the present invention provides a luminaire having a batwing type light distribution curve, comprising: a casing, a plurality of light emitting diode (LED) light bars, a reflecting unit, a unit and a first diffusion unit. . The housing has a first bottom plate; wherein the plurality of LED strips are fixed on the first bottom plate of the housing, and each of the LED strips is provided with a plurality of LEDs for generating Illuminating light; wherein the reflecting unit has a second bottom plate disposed on the LED strips, and the second bottom plate forms a plurality of first openings to respectively correspond to the plurality of LED strips LEDs, each of the plurality of LEDs being exposed by each of the corresponding first openings, and the reflecting unit reflects the illumination light generated by the plurality of LEDs; wherein the germanium unit forms a plurality of germanium structures and a first plane relative to the plurality of 稜鏡 structures, the 稜鏡 structure extending toward the interior of the luminaire to refract the illuminating light generated by the plurality of LEDs to be emitted to the outside of the luminaire; wherein the first diffusion unit, Corresponding to the first plane of the unit, for uniformly diffusing the refracted illumination light to the outside of the luminaire.

In a preferred embodiment, the plurality of 稜鏡 structures of the 稜鏡 unit face the angular extent of the plurality of LED strips between 80 and 110 degrees.

In a preferred embodiment, the LED strips are attached to the first bottom plate of the housing by adhesive bonding or snapping.

In a first preferred embodiment, wherein the material of the reflecting unit is selected from the group consisting of polyethylene terephthalate (PET), polyurethane (PU), polycarbonate (PC), and polypropylene (PP). One or plural composition.

In a preferred embodiment, the size of each of the plurality of first openings of the reflective unit is equal to or greater than the size of each of the plurality of LEDs.

In a preferred embodiment, the housing has a first sidewall connected to the first bottom plate, and the reflective unit has a second sidewall connected to the second bottom panel, and a portion of the second sidewall is in contact with A portion of the housing is on the first side wall and a second bottom plate of the reflective unit contacts the first bottom plate of the housing.

In a preferred embodiment, the luminaire having a batwing type light distribution curve according to claim 1 further includes a second diffusion unit disposed between the reflection unit and the 稜鏡 unit. The irradiation light of the plurality of LEDs is uniformly diffused.

In another preferred embodiment, wherein the outer surface of one of the first diffusion units forms a concave curved microstructure, the concave curved microstructure faces the outer side of the luminaire.

In another preferred embodiment, wherein the outer surface of one of the first diffusion units forms a triangular-shaped microstructure that faces the outer side of the luminaire.

In another preferred embodiment, wherein an outer surface of one of the first diffusion units forms a convex arc-shaped microstructure, the outer convex arc-shaped microstructure faces the outer side of the lamp.

In another preferred embodiment, further comprising an upper cover frame fixed to the first side wall of the housing to fix the first diffusion unit, the unit and the reflection disposed in the housing unit.

In each of the above preferred embodiments, the maximum light intensity produced by the luminaire is in a range between 10° and 40° of the vertical angle of the light emitted by the luminaire.

10‧‧‧LED light source

20‧‧‧ lens

30‧‧‧ Illumination

100,200,300,400,500,600‧‧‧ lamps

110‧‧‧shell

112‧‧‧ first bottom plate

114‧‧‧First side wall

120‧‧‧LED strip

120a‧‧‧LED

122‧‧‧ Illumination

130‧‧‧Reflective unit

132‧‧‧First opening

134‧‧‧second bottom plate

136‧‧‧ second side wall

140‧‧‧稜鏡 unit

142‧‧‧ first plane

144‧‧‧稜鏡

149‧‧‧ lens unit

152‧‧‧Secondary diffusion unit

160‧‧‧Top cover frame

150, 170, 180, 190‧‧‧ first diffusion unit

172‧‧‧ concave curved microstructure

182‧‧‧Triangular microstructure

192‧‧‧Convex curved microstructure

202‧‧‧ tetragonal 微-shaped microstructure

Fig. 1 is a schematic cross-sectional view showing the structure of a conventional LED lamp.

Fig. 2 is a schematic cross-sectional view showing the structure of another conventional LED lamp.

Fig. 3 is a schematic view showing the light distribution curve of the conventional LED lamp of Fig. 2.

Figure 4 is a side cross-sectional view showing a luminaire in accordance with a first preferred embodiment of the present invention.

Figure 5 is an exploded view of a luminaire in accordance with a first preferred embodiment of the present invention.

Figure 6 is a schematic view showing a unit of the first preferred embodiment in accordance with the present invention.

Figure 7 is a graph showing an optimum batwing type light distribution curve produced by the luminaire according to Fig. 5.

Figure 8 is a side cross-sectional view showing a luminaire in accordance with a second preferred embodiment of the present invention.

Figure 9 is a graph showing a batwing type light distribution curve produced by the luminaire according to Fig. 8.

Figure 10 is a side cross-sectional view showing a lamp according to a third preferred embodiment of the present invention.

Figure 11 is a side cross-sectional view showing a lamp according to a fourth preferred embodiment of the present invention.

Figure 12 is a side cross-sectional view showing a luminaire according to a fifth preferred embodiment of the present invention.

Figure 13 is a side cross-sectional view showing a lamp according to a sixth preferred embodiment of the present invention.

Fig. 14 is a schematic view showing the microstructure of various shapes.

The batwing type light distribution curve lamp of the present invention will be described in detail below with reference to the accompanying drawings. It is to be noted that the same element symbols in the different drawings represent the same or similar elements. The face orientation of the additional figures mentioned below is defined as a normal vector perpendicular to the plane, and the directional term used herein is used to describe and understand the present work, and is not intended to limit the present work.

Please refer to FIG. 4 and FIG. 5 first. FIG. 4 shows a side cross-sectional view of a luminaire 100 according to a first preferred embodiment of the present invention, and FIG. 5 shows a first best according to the present creation. The device 100 includes a housing 110, a light-emitted diode (LED) light bar 120, a reflection unit 130, Diffusion unit 150.

As shown in FIGS. 4 and 5, the housing 110 has a first bottom plate 112, a first side wall 114 that is vertically connected and surrounds the first bottom plate 112.

As shown in FIG. 4 and FIG. 5, the plurality of LED strips 120 can be fixed to the first bottom plate 112 of the housing 110 through a cassette or a glue, and each of the LED strips 120 is provided with a plurality of LED strips 120. Or a row of LEDs 120a to present an array arrangement on the plurality of LED strips 120 to generate illumination light 122.

As shown in FIG. 4 and FIG. 5, the reflecting unit 130 is configured to reflect a portion of the illumination light 122, such that the portion of the illumination light 122 can be reflected and sent to the outside of the lamp 100 for illumination, and the reflection unit 130 A second bottom plate 134 and a second side wall 136 perpendicularly connected to the second bottom plate 134, wherein a portion of the second side wall 136 contacts a portion of the first side wall 114 of the housing 110, and The second bottom plate 134 of the reflective unit 130 contacts the first bottom plate 112 of the housing 110. An outer surface of the second bottom plate 134 is disposed on the LED light strips 120, and a plurality of first openings 132 are formed through the second bottom plate 134 to penetrate the inner and outer surfaces of the second bottom plate 134 to respectively correspond to the LED light strips. Each of the plurality of LEDs 120a of 120 is exposed by each of the corresponding first openings 132, wherein each of the plurality of first openings 132 of the reflective unit 130 has a size equal to or greater than The plurality of LEDs 120a are sized such that each of the plurality of LEDs 120a can be completely inserted into each of the first openings 132 of the reflective unit 130. In the first preferred embodiment, the material of the reflective unit 130 is selected from the group consisting of polyethylene terephthalate (PET), polyurethane (PU), polycarbonate (PC), and polypropylene (PP). In one embodiment, the reflective unit 130 is designed to be a part of the housing 110 of the luminaire 100 or a reflective layer, in addition to being a separately disposed reflector.

As shown in FIGS. 4 and 5, the unit 140 has a plurality of turns. a facet 144 of the structure and a first plane 142 with respect to the plurality of 稜鏡 structures, the plurality of 稜鏡 structures are arranged in a strip shape on the face 144 and a lateral section of each of the 稜鏡 structures is A triangular structure is provided, and the triangular tip of each of the meandering structures 144 extends toward the interior of the luminaire 100 for substantially refracting the illuminating light 122 generated by the plurality of LEDs 120a and/or by the reflecting unit 130. The reflected illuminating light 122 reaches the exterior of the luminaire 100. It should be noted here that although in the first preferred embodiment, each of the turns of the face 144 on the crotch panel 140 is triangular, and the plurality of turns of the unit 140 The angular extent of the structure facing the plurality of LED strips 120 is between 80 and 110 degrees, but the scope of the patent is not limited thereto. In other embodiments, various geometric structures and polygonal structures may also be used. One of or a combination of a polygonal structure, an arc structure, or a combination of several of them, or any geometric structure that scatters light uniformly, is included in the spirit of the present invention.

As shown in FIG. 4 and FIG. 5, the first diffusion unit 150 is a planar plate-like structure for illuminating the illuminating light 122 refracted by the cymbal unit 140 to an approximate central position outside the luminaire 100. The concentration is evenly concentrated, whereby the illumination light 122 exiting the first diffusion unit 150 can be formed into a uniform optimal batwing type light distribution curve (as shown in FIG. 6). The maximum light intensity generated by the luminaire is in a range between 10° and 40° of the vertical angle of the light emitted by the luminaire.

In the first preferred embodiment, the luminaire 100 further has an upper cover frame 160 fixed to the first side wall 114 of the housing 110 to fix the first diffusion unit disposed in the housing 110. 150. The unit 140, the reflecting unit 130 or other components.

Referring to Fig. 6, there is shown a schematic view of the cymbal unit 140 in the first preferred embodiment, illustrating that the pupil plane 144 of the cymbal unit 140 is formed by a plurality of triangular strip structures parallel to each other.

Please refer to FIG. 7 again to show an optimal batwing type light distribution curve generated by the luminaire 100 according to FIG. 5, wherein the generated light (ie, the illuminating light 122) is uniformly distributed at 0- Between 75 degrees, the maximum light intensity is at 25 degrees, so this creation can provide a more uniform and more suitable illumination for the batwing type of light distribution curve than conventional lamps that use only one unit.

Referring to Fig. 8, there is shown a side cross-sectional view of a luminaire 200 in accordance with a second preferred embodiment of the present invention, the structure of which differs from the luminaire 100 of the first preferred embodiment described above in that: the second best The luminaire 200 of the embodiment uses a first diffusion unit 170 having a plurality of concave curved microstructures 172 instead of the first diffusion unit 150 having no microstructure in the luminaire 100 of the first preferred embodiment; The structure and function of the remaining components in the luminaire 200 of the second preferred embodiment are the same as those of the luminaire 100 of the first preferred embodiment described above, and will not be described herein.

Please refer to FIG. 9 , which shows an optimal batwing type light distribution curve generated by the luminaire 200 according to FIG. 8 , wherein the light is evenly distributed between 0-60 degrees and the maximum light intensity is 27.5 degrees. Therefore, compared to conventional lamps that use only one unit, this creation can provide a more uniform and more suitable batwing light distribution curve.

Referring also to Fig. 10, there is shown a side cross-sectional view of a luminaire 300 in accordance with a third preferred embodiment of the present invention, the structure of which differs from the luminaire 100 of the first preferred embodiment described above in that In the luminaire 300 of the preferred embodiment, a second diffusion unit 152 is additionally disposed between the reflecting unit 130 and the cymbal unit 140. Through the first diffusion unit 150 and the second diffusion unit 152, a more uniform batwing type light distribution curve than the above embodiments can be provided; and the structure of the remaining components in the luminaire 300 of the third preferred embodiment And the effects are the same as those of the luminaire 100 of the first preferred embodiment described above, and will not be described here.

Referring also to Fig. 11, there is shown a side cross-sectional view of a luminaire 400 in accordance with a fourth preferred embodiment of the present invention, the structure of which differs from the luminaire 200 of the second preferred embodiment described above in that the fourth In the luminaire 400 of the preferred embodiment, a second diffusion unit 152 is added between the cymbal unit 140 and the reflecting unit 130 to provide a more uniform batwing type light distribution curve. Through the action of both the first diffusion unit 170 and the second diffusion unit 152, a more uniform batwing type light distribution curve is provided while reducing the cost; as for the luminaire 400 of the fourth preferred embodiment The structure and function of the remaining components are the same as those of the luminaire 200 of the second preferred embodiment described above, and will not be described herein.

Referring to Fig. 12, there is shown a side cross-sectional view of a luminaire 500 in accordance with a fifth preferred embodiment of the present invention, the structure of which differs from the luminaire 300 of the third preferred embodiment described above in that: the fifth best The luminaire 500 of the embodiment employs a first diffusion unit 180 having a plurality of triangular dome-shaped microstructures 182 in place of the first diffusion unit 150 having no microstructure in the luminaire 300 of the third preferred embodiment described above. By the action of both the integrally formed first diffusion unit 180 and the integrally formed second diffusion unit 152, a more uniform batwing type light distribution curve is provided while reducing cost; as for the fifth best implementation The structure and function of the remaining components in the luminaire 500 of the example are the same as those of the luminaire 300 of the third preferred embodiment described above, and will not be described here.

Referring to Figure 13, there is shown a side cross-sectional view of a luminaire 600 in accordance with a sixth preferred embodiment of the present invention, the structure of which differs from the luminaire 300 of the third preferred embodiment described above in that: the sixth best The luminaire 600 of the embodiment employs a first diffusion unit 190 having a plurality of convex arc-shaped microstructures 192 instead of the first diffusion unit 150 having no microstructure in the luminaire 300 of the third preferred embodiment described above to provide more Uniform batwing type light distribution curve. The cost reduction is achieved by both the integrally formed first diffusion unit 190 and the integrally formed second diffusion unit 152 It also provides a more uniform batwing light distribution curve. The structure and function of the remaining components in the luminaire 600 of the sixth preferred embodiment are the same as those of the luminaire 300 of the third preferred embodiment described above, and will not be described herein.

Referring to Figure 14, a schematic diagram of the microstructure of various shapes is shown. 14-A is a concave curved microstructure 172 in Fig. 8; 14-B is a tetragonal 微-shaped microstructure 202; 14-C is a convex curved microstructure 192 in Fig. 13; 14-D It is the triangular dome-shaped microstructure 182 of Fig. 12. The microstructure may be disposed on the first diffusion unit and/or the second diffusion unit. It is noted that the shape of the microstructure may be the various geometries shown in Figure 14, but is not intended to limit the scope of the application of the present invention, and may be any other known geometry.

Through the lamps of the above embodiments of the present invention, the component cost can be reduced in using a large number of LED light sources and at the same time, an optimum batwing type light distribution curve can be generated, for example, but not limited to, the maximum light intensity distribution is 10 to 45 degrees. Therefore, it is very suitable for general office or home lighting, which not only increases the arrangement distance between lamps and lamps, but also reduces the number of configurations of the overall lamps. At the same time, it can achieve uniform illumination of the overall lighting space, achieving energy saving and carbon saving.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes without departing from the spirit and scope of the present invention. Retouching, therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application attached.

100‧‧‧Lights

110‧‧‧shell

112‧‧‧ first bottom plate

114‧‧‧First side wall

120‧‧‧LED strip

120a‧‧‧LED

130‧‧‧Reflective unit

132‧‧‧First opening

134‧‧‧second bottom plate

136‧‧‧ second side wall

140‧‧‧稜鏡 unit

142‧‧‧ first plane

144‧‧‧稜鏡

150‧‧‧First Diffusion Unit

160‧‧‧Top cover frame

Claims (10)

A luminaire having a batwing type light distribution curve, comprising: a casing having a first bottom plate; a plurality of light emitting diode (LED) light bars fixed on the first bottom plate of the casing, each of the The light-emitting diode light bar is provided with a plurality of LEDs for generating illumination light; a reflective unit having a second bottom plate disposed on the light-emitting diode light strips and the second bottom plate forming a plurality of first openings for respectively Corresponding to the plurality of LEDs of the light-emitting diode strips, each of the plurality of LEDs is exposed by each of the corresponding first openings, and the reflecting unit reflects the illumination light generated by the plurality of LEDs; a unit, forming a plurality of 稜鏡 structures and a first plane relative to the plurality of 稜鏡 structures, the 稜鏡 structure extending toward an interior of the luminaire to refract the illuminating light generated by the plurality of LEDs An external portion of the luminaire is disposed; and a first diffusion unit corresponding to the first plane of the 稜鏡 unit for uniformly diffusing the refracted illuminating light to the outside of the luminaire. The luminaire having a batwing type light distribution curve according to claim 1, wherein the plurality of 稜鏡 structures of the 稜鏡 unit face the angular range of the plurality of light emitting diode strips at 80 to 110 degrees between. The luminaire having a batwing type light distribution curve according to claim 1, wherein a size of each of the plurality of first openings of the reflecting unit is equal to or larger than a size of each of the plurality of LEDs. The luminaire having a batwing type light distribution curve according to claim 1, wherein the housing has a first side wall connected to the first bottom plate and the reflecting unit has a connection to the second a second side wall of the bottom plate, and a portion of the second side wall contacts a portion of the first side wall of the housing, and the second bottom plate of the reflective unit contacts the first bottom plate of the housing. The luminaire having a batwing type light distribution curve according to claim 1, further comprising a second diffusion unit disposed between the reflection unit and the 稜鏡 unit for illuminating the plurality of LEDs The light spreads evenly. The luminaire having a batwing type light distribution curve according to claim 1, wherein an outer surface of the first diffusion unit forms a concave curved microstructure, and the concave curved microstructure faces the luminaire Outside. The luminaire having a batwing type light distribution curve according to claim 1, wherein an outer surface of the first diffusion unit forms a triangular dome-shaped microstructure, and the triangular dome-shaped microstructure faces the luminaire Outside. The luminaire having a batwing type light distribution curve according to claim 1, wherein an outer surface of the first diffusion unit forms an outer convex curved microstructure, and the convex curved microstructure is oriented toward the luminaire Outside the luminaire. The luminaire having a batwing type light distribution curve according to claim 4, further comprising an upper cover frame fixed to the first side wall of the housing to fix the first content of the housing a diffusion unit, the unit, and the reflection unit. The luminaire having a batwing type light distribution curve according to claim 1, wherein the maximum light intensity generated by the luminaire is in a range between 10° and 40° of a vertical angle of the light emitted by the luminaire.