Lighting device with compound lens

Abstract

A lighting device with a compound lens comprises a large-angle lens module and a small-angle lens module. The wide-angle lens module includes one or more wide-angle lens units. Each large-angle lens unit comprises a lens and a plurality of first light sources covered by the lens. The lens comprises two side walls and a first light emitting surface arranged between the two side walls. The small angle lens module includes one or more small angle lens units. Each small-angle lens unit comprises a plurality of light-emitting parts and a plurality of second light sources corresponding to the light-emitting parts, and each second light source is covered by the corresponding light-emitting part. Each light-emitting part comprises a wall body and a second light-emitting face arranged in the middle of the wall body.

Description

Technical Field

[0001] The present invention relates to a lighting device, in particular to a lighting device with a compound lens. Background Art

[0002] With the progress of technology, the efficiency of light-emitting diode (LED) lighting devices has also been improved, and their applications have become increasingly widespread. Light-emitting diode lighting devices have the advantages of high efficiency, long life, environmental protection, etc., and have thus become the mainstream products. However, in practical applications, how to effectively control the light direction, scattering characteristics, and spot shape of light-emitting diode lighting devices to meet the lighting requirements in different application scenarios has become an urgent problem.

[0003] The lens design of existing light-emitting diode lighting devices limits the number of light sources, making it impossible for light-emitting diode lighting devices to meet the requirements of high luminous efficiency.

[0004] In addition, the lens design of existing light-emitting diode lighting devices also cannot significantly increase the number of light sources, so its application is greatly limited. Summary of the Invention

[0005] According to an embodiment of the present invention, a lighting device with a compound lens is proposed, which includes a large-angle lens module and a small-angle lens module. The large-angle lens module includes one or more large-angle lens units. Each large-angle lens unit includes a lens and a plurality of first light sources covered by the lens. The lens includes two side walls and a first light-emitting surface disposed between the two side walls. The small-angle lens module includes one or more small-angle lens units. Each small-angle lens unit includes a plurality of light-emitting parts and a plurality of second light sources corresponding to the plurality of light-emitting parts, and each second light source is covered by the corresponding light-emitting part. Each light-emitting part includes a wall and a second light-emitting surface disposed in the middle of the wall.

[0006] In one embodiment, the large-angle lens module surrounds the small-angle lens module.

[0007] In one embodiment, the small-angle lens module surrounds the large-angle lens module.

[0008] In one embodiment, the plurality of large-angle lens units and the plurality of small-angle lens units are alternately arranged.

[0009] In one embodiment, the large-angle lens unit is circular, elliptical, rectangular, or linear.

[0010] In one embodiment, the small-angle lens unit is circular, elliptical, rectangular, or linear.

[0011] In one embodiment, the total light-emitting angle of the large-angle lens module and the small-angle lens module is positively correlated with the number of large-angle lens units, the total light-emitting angle is negatively correlated with the number of small-angle lens units, the total light-emitting angle is positively correlated with the number of the plurality of first light sources, and the total light-emitting angle is negatively correlated with the number of the plurality of second light sources.

[0012] In one embodiment, the cross-section of the first light-emitting surface and the cross-section of the second light-emitting surface are both inferior segmental or triangular.

[0013] In one embodiment, any one of the light-emitting portions is in contact with an adjacent light-emitting portion.

[0014] In one embodiment, the plurality of light-emitting portions are adjacent to each other, and there is a spacing between any one of the light-emitting portions and an adjacent light-emitting portion.

[0015] As described above, the lighting device with a compound lens according to the embodiment of the present invention may have one or more of the following advantages:

[0016] (1) In one embodiment of the present invention, the lighting device includes a large-angle lens module and a small-angle lens module. The large-angle lens module includes one or more large-angle lens units. Each large-angle lens unit includes a lens and a plurality of first light sources covered by the lens. The lens includes two side walls and a first light-emitting surface disposed between the two side walls. The small-angle lens module includes one or more small-angle lens units. Each small-angle lens unit includes a plurality of light-emitting portions and a plurality of second light sources corresponding to the plurality of light-emitting portions, and each second light source is covered by a corresponding light-emitting portion. Each light-emitting portion includes a wall body and a second light-emitting surface disposed in the middle of the wall body. Through the structural design of the above-mentioned large-angle lens module and small-angle lens module, the total light-emitting angle of the large-angle lens module and the small-angle lens module can be positively correlated with the number of large-angle lens units, the total light-emitting angle is negatively correlated with the number of small-angle lens units, the total light-emitting angle is positively correlated with the number of the plurality of first light sources, and the total light-emitting angle is negatively correlated with the number of the plurality of second light sources. Therefore, the aforementioned total light-emitting angle can be adjusted by changing the number of large-angle lens units, the number of the small-angle lens units, the number of the plurality of first light sources or the number of the plurality of second light sources, so that the lighting device can meet the requirements of different applications.

[0017] (2) In an embodiment of the present invention, the lighting device realizes the lighting function by combining a large-angle lens module and a small-angle lens module. The structural design of the large-angle lens module and the small-angle lens module can accommodate a large number of light sources, enabling it to have excellent optical performance. By flexibly adjusting the ratio of the large-angle lens unit to the small-angle lens unit, the lighting device can accurately control the total light-emitting angle according to actual needs to adapt to different application scenarios. In addition, the total luminous efficacy of the lighting device can also be greatly improved, effectively improving the light energy utilization rate and reducing energy consumption. Therefore, this lighting device can not only meet diverse application requirements, but also effectively improve its performance and adaptability.

[0018] (3) In an embodiment of the present invention, the large-angle lens module can surround the small-angle lens module, or the small-angle lens module can also surround the large-angle lens module. Additionally, a structural design with multiple large-angle lens units and multiple small-angle lens units arranged alternately can also be adopted. The large-angle lens unit and the small-angle lens unit are circular, elliptical, rectangular, or linear strip-shaped. As can be seen from the above, the lighting device can be realized through a variety of different lighting structures, not only bringing many changes in appearance, but also enabling the performance of the lighting device to meet the requirements of practical applications.

[0019] (4) In an embodiment of the present invention, the cross-section of the first light-emitting surface and the cross-section of the second light-emitting surface are inferior segmental or triangular. This kind of structure can optimize the light distribution, making the light more uniform and soft, thereby reducing the irritation to the user's eyes and enhancing visual comfort. In addition, the structural design of the lighting device can also easily regulate the total luminous efficacy and the total light-emitting angle, greatly improving the performance of the lighting device in different application scenarios. In this way, the lighting device can not only enhance the user experience, but also has higher flexibility and adaptability. Therefore, the lighting device can be more flexible in use to meet different lighting requirements.

[0020] (5) In an embodiment of the present invention, the lighting device adopts a simple and ingenious design, enabling it to achieve the expected lighting effect under good cost control. Since there is no need to significantly increase the manufacturing cost, the practicality of the lighting device is significantly improved. In this way, the lighting device can not only conform to the development trend of future lighting technologies, but also meet different application requirements. Therefore, the application of the lighting device can be more extensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of the structure of a lighting device with a compound lens according to the first embodiment of the present invention.

[0022] Figure 2 is a top view of the light source board of a lighting device with a compound lens according to the first embodiment of the present invention.

[0023] Figure 3 Cross-sectional view of the lighting device with a compound lens according to the second embodiment of the present invention.

[0024] Figure 4 Top view of the lighting device with a compound lens according to the third embodiment of the present invention.

[0025] Figure 5 Schematic diagram of the total light-emitting angle of the lighting device with a compound lens according to the third embodiment of the present invention.

[0026] Figure 6 Top view of the lighting device with a compound lens according to the fourth embodiment of the present invention.

[0027] Figure 7 Top view of the lighting device with a compound lens according to the fifth embodiment of the present invention.

[0028] Figure 8 Top view of the lighting device with a compound lens according to the sixth embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1 - Lighting device; 11 - Large-angle lens module; 111 - Large-angle lens unit; 1111 - Lens; 1112 - First light source; 12 - Small-angle lens module; 121 - Small-angle lens unit; 1211 - Light-emitting part; 1212 - Second light source; 13 - Circuit board; SW - Side wall; E1 - First light-emitting surface; WB - Wall; E2 - Second light-emitting surface; HR - Horizontal reference line; VR - Vertical reference line; PA, PB1, PB2 - Points; CR - Region; L1 - Line segment; θ - Total light-emitting angle.

[0031] The detailed features and advantages of the present invention are described in detail in the following embodiments. The content is sufficient for any person skilled in the relevant art to understand the technical content of the present invention and implement it accordingly. And according to the content, claims and drawings disclosed in this specification, any person skilled in the relevant art can easily understand the related purposes and advantages of this creation. Detailed embodiments

[0032] Hereinafter, with reference to the relevant drawings, embodiments of the lighting device with a compound lens according to the present invention will be described. For the sake of clarity and convenience in the description of the drawings, the components in the drawings may be presented in an exaggerated or reduced size and proportion. In the following description and / or claims, when referring to a component "connected" or "coupled" to another component, it may be directly connected or coupled to the other component or there may be an intervening component; while when referring to a component "directly connected" or "directly coupled" to another component, there is no intervening component, and other words used to describe the relationship between components or layers should be interpreted in the same way. For ease of understanding, the same components in the following embodiments are denoted by the same reference numerals.

[0033] Please refer to Figure 1 and Figure 2 . Figure 1 is a perspective view of the lighting device with a compound lens according to the first embodiment of the present invention. Figure 2 is a top view (removing the lens and the light emitting part) of the lighting device with a compound lens according to the first embodiment of the present invention. As shown, the lighting device 1 includes a large-angle lens module 11, a small-angle lens module 12, and a circuit board 13. The large-angle lens module 11 and the small-angle lens module 12 are disposed on the circuit board 13.

[0034] The large-angle lens module 11 includes a large-angle lens unit 111. The large-angle lens unit 111 includes a lens 1111 and a plurality of first light sources 1112 covered by the lens 1111. Since the plurality of first light sources 1112 are covered by the lens 1111, the number of the plurality of first light sources 1112 can be increased according to requirements until the upper limit of the internal space of the lens 1111 is reached. In the present embodiment, the large-angle lens unit 111 is circular. In another embodiment, the large-angle lens unit 111 may also be elliptical, rectangular, or linear.

[0035] The small-angle lens module 12 includes five small-angle lens units 121. Each small-angle lens unit 121 includes a plurality of light-emitting portions 1211 and a plurality of second light sources 1212 corresponding to the plurality of light-emitting portions 1211, and each second light source 1212 is covered by the corresponding light-emitting portion 1211. In another embodiment, each light-emitting portion 1211 may also correspond to more than one second light source 1212; that is to say, each light-emitting portion 1211 may also correspond to more than one second light source 1212, and the number of these second light sources 1212 can be increased according to requirements until the upper limit of the internal space of the light-emitting portion 1211 is reached. In this embodiment, each small-angle lens unit 121 includes a plurality of light-emitting portions 1211 connected to each other and these light-emitting portions 1211 are arranged in a circular shape, and any one light-emitting portion 1211 is in contact with the adjacent light-emitting portion 1211. In another embodiment, the plurality of light-emitting portions 1211 are adjacent to each other, and there is a spacing between any one light-emitting portion 1211 and the adjacent light-emitting portion 1211. In this embodiment, the small-angle lens unit 121 is circular. In another embodiment, the small-angle lens unit 121 may also be elliptical, rectangular or linear strip-shaped.

[0036] In this embodiment, the large-angle lens module 11 surrounds five small-angle lens modules 12, so the small-angle lens modules 12 are arranged in the middle of the lighting device 1. This structural design enables the number of light sources (the first light source 1112 and the second light source 1212) of the lighting device 1 to be maximized. Thus, the total luminous efficacy of the lighting device 1 can be greatly improved.

[0037] In addition, the total light-emitting angle of the large-angle lens module 11 and the small-angle lens module 12 is positively correlated with the number of large-angle lens units 111, while the total light-emitting angle is negatively correlated with the number of small-angle lens units 121. The more the number of large-angle lens modules 11, the larger the total light-emitting angle. Relatively, the more the number of small-angle lens units 121, the smaller the total light-emitting angle. In this embodiment, the number of large-angle lens units 111 is one, and the number of small-angle lens units 121 is five, so the total light-emitting angle will be reduced due to the above factors.

[0038] As can be seen from the above, the aforementioned total light-emitting angle can be adjusted by changing the number of large-angle lens units 111 and the number of small-angle lens units 121, so that the lighting device 1 can meet the requirements of different applications.

[0039] In addition, the lighting device 1 realizes the lighting function by combining the large-angle lens module 11 and the small-angle lens module 12. The structural design of the large-angle lens module 11 and the small-angle lens module 12 can accommodate a large number of light sources, enabling it to have excellent optical performance. By flexibly adjusting the ratio of the large-angle lens unit 111 to the small-angle lens unit 121, the lighting device 1 can accurately control the total light-emitting angle according to actual needs to adapt to different application scenarios. In addition, the total luminous efficacy of the lighting device 1 can also be greatly improved, effectively improving the utilization rate of light energy and reducing energy consumption. Therefore, this lighting device 1 can not only meet diverse application requirements, but also effectively improve its performance and adaptability.

[0040] Of course, this embodiment is only used for illustration and not for limiting the scope of the present invention. Equivalent modifications or changes made to the lighting device 1 with a compound lens according to this embodiment should still be included within the patent scope of the present invention.

[0041] Please refer to Figure 3 , which is a cross-sectional view of the lighting device with a compound lens according to the second embodiment of the present invention. As shown in the figure, in this embodiment, the lighting device 1 includes a large-angle lens module 11, a small-angle lens module 12, and a circuit board 13. The large-angle lens module 11 includes 3 large-angle lens units 111. The small-angle lens module 12 includes 3 small-angle lens units 121.

[0042] Each large-angle lens unit 111 includes a lens 1111 and a plurality of first light sources 1112 (only one first light source 1112 is shown) covered by the lens 1111. The lens 1111 includes two side walls SW and a first light-emitting surface E1 disposed between the two side walls SW. The cross-section of the first light-emitting surface E1 is a minor-segment or a triangle.

[0043] Each small-angle lens unit 121 includes a plurality of light-emitting parts 1211 and a plurality of second light sources 1212 (only one second light source 1212 is shown) corresponding to the plurality of light-emitting parts 1211. Each light-emitting part 1211 includes a wall WB and a second light-emitting surface E2 disposed in the middle of the wall WB. The cross-section of the second light-emitting surface E2 is a minor-segment or a triangle.

[0044] The above structural design can effectively optimize the light distribution, make the light more uniform and soft, reduce the irritation to the user's eyes, and improve the visual comfort. In addition, the structural design of the lighting device 1 facilitates the adjustment of the total luminous efficacy and the total light-emitting angle, thereby significantly improving its performance in different application scenarios. In this way, the lighting device 1 not only improves the user experience, but also has higher flexibility and adaptability, enabling it to meet diverse lighting needs.

[0045] Of course, this embodiment is only used for illustration and not for limiting the scope of the present invention. Equivalent modifications or changes made to the lighting device with a compound lens according to this embodiment should still be included within the patent scope of the present invention.

[0046] It is worth mentioning that the lens design of existing light-emitting diode lighting devices limits the number of light sources, making it impossible for light-emitting diode lighting devices to meet the requirements of high luminous efficiency. Additionally, the lens design of existing light-emitting diode lighting devices cannot significantly increase the number of light sources, so there are significant limitations in applications. In contrast, according to an embodiment of the present invention, the lighting device includes a large-angle lens module and a small-angle lens module. The large-angle lens module includes one or more large-angle lens units. Each large-angle lens unit includes a lens and a plurality of first light sources covered by the lens. The lens includes two side walls and a first light-emitting surface disposed between the two side walls. The small-angle lens module includes one or more small-angle lens units. Each small-angle lens unit includes a plurality of light-emitting portions and a plurality of second light sources corresponding to the plurality of light-emitting portions, and each second light source is covered by the corresponding light-emitting portion. Each light-emitting portion includes a wall body and a second light-emitting surface disposed in the middle of the wall body. Through the structural design of the above-mentioned large-angle lens module and small-angle lens module, the total light-emitting angle of the large-angle lens module and the small-angle lens module is positively correlated with the number of large-angle lens units, the above-mentioned total light-emitting angle is negatively correlated with the number of small-angle lens units, the above-mentioned total light-emitting angle is positively correlated with the number of the plurality of first light sources, and the above-mentioned total light-emitting angle is negatively correlated with the number of the plurality of second light sources. Therefore, the aforementioned total light-emitting angle can be adjusted by changing the number of large-angle lens units, the number of small-angle lens units, the number of the plurality of first light sources, or the number of the plurality of second light sources, so that the lighting device can meet the requirements of different applications.

[0047] Furthermore, according to an embodiment of the present invention, the lighting device realizes the lighting function by combining the large-angle lens module and the small-angle lens module. The structural design of the large-angle lens module and the small-angle lens module can accommodate a large number of light sources, enabling it to have excellent optical performance. By flexibly adjusting the ratio of the large-angle lens units to the small-angle lens units, the lighting device can accurately control the total light-emitting angle according to actual needs to adapt to different application scenarios. In addition, the total luminous efficiency of the lighting device can also be significantly improved, effectively improving the utilization rate of light energy and reducing energy consumption. Therefore, this lighting device can not only meet diverse application requirements, but also effectively improve its performance and adaptability.

[0048] In addition, according to an embodiment of the present invention, the large-angle lens module can surround the small-angle lens module, or the small-angle lens module can also surround the large-angle lens module. Additionally, a structural design in which multiple large-angle lens units and multiple small-angle lens units are alternately arranged can also be adopted. The large-angle lens units and the small-angle lens units are circular, elliptical, rectangular, or linearly strip-shaped. As can be seen from the above, the lighting device can be realized through a variety of different lighting structures, enabling the lighting device to not only have many changes in appearance, but also the performance of the lighting device can meet the requirements of practical applications.

[0049] Furthermore, according to an embodiment of the present invention, the cross-section of the first light-emitting surface and the cross-section of the second light-emitting surface are inferior segments or triangles. This kind of structure can optimize the light distribution, making the light more uniform and soft, thereby reducing the irritation to the user's eyes and enhancing the visual comfort. In addition, the structural design of the lighting device can easily control the total light efficiency and the total light-emitting angle, greatly improving the performance of the lighting device in different application scenarios. In this way, the lighting device can not only enhance the user experience, but also has higher flexibility and adaptability. Therefore, the use of the lighting device can be more flexible to meet different lighting requirements.

[0050] Moreover, according to an embodiment of the present invention, the lighting device adopts a simple and ingenious design, enabling it to achieve the expected lighting effect under good cost control. Since there is no need to significantly increase the manufacturing cost, the practicality of the lighting device is significantly improved. In this way, the lighting device can not only conform to the development trend of future lighting technologies, but also meet different application requirements. Therefore, the application of the lighting device can be more extensive. As can be seen from the above, the lighting device with a compound lens according to the embodiment of the present invention can indeed achieve excellent technical effects.

[0051] Please refer to Figure 4 , which is a top view of the lighting device with a compound lens according to the third embodiment of the present invention. As shown in the figure, in this embodiment, the large-angle lens module 11 of the lighting device 1 includes 3 large-angle lens units 111. The small-angle lens module 12 of the lighting device 1 includes 4 small-angle lens units 121. The large-angle lens units 111 are circular, and the small-angle lens units 121 are also circular (HR represents the horizontal reference line, and VR represents the vertical reference line).

[0052] The light-emitting angle of the large-angle lens unit 111 can be 30° - 120°, while the light-emitting angle of the small-angle lens unit 121 can be 1° - 30°. Taking this embodiment as an example, when the number of the first light sources 1112 : the number of the second light sources 1212 is 1 : 0, the total light-emitting angle is 75°. When the number of the first light sources 1112 : the number of the second light sources 1212 is 10 : 1, the total light-emitting angle is 60°. When the number of the first light sources 1112 : the number of the second light sources 1212 is 5 : 1, the total light-emitting angle is 50°. When the number of the first light sources 1112 : the number of the second light sources 1212 is 4 : 1, the total light-emitting angle is 45°. When the number of the first light sources 1112 : the number of the second light sources 1212 is 3 : 1, the total light-emitting angle is 40°. When the number of the first light sources 1112 : the number of the second light sources 1212 is 2 : 1, the total light-emitting angle is 35°. The total light-emitting angle is positively correlated with the number of the first light sources 1112, and the total light-emitting angle is negatively correlated with the number of the second light sources 1212. An increase in the number of the first light sources 1112 will increase the total light-emitting angle. In contrast, an increase in the number of the second light sources 1212 will decrease the total light-emitting angle.

[0053] For example, under the condition that the light sources (the first light sources 1112 and the second light sources 1212) are evenly distributed in the large-angle lens module 11 and the small-angle lens module 12, when the number of the large-angle lens units 111 : the number of the small-angle lens units 121 is 1 : 0, the total light-emitting angle is 75°. When the number of the large-angle lens units 111 : the number of the small-angle lens units 121 is 1 : 1, the total light-emitting angle is 45°. When the number of the large-angle lens units 111 : the number of the small-angle lens units 121 is 0 : 1, the total light-emitting angle is 25°. An increase in the number of the large-angle lens units 111 will increase the total light-emitting angle. In contrast, an increase in the number of the small-angle lens units 121 will decrease the total light-emitting angle.

[0054] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device 1 with a compound lens according to this embodiment should still be included within the scope of the patent of the present invention.

[0055] Please refer to Figure 5 , which is a schematic diagram of the total light-emitting angle of the lighting device with a compound lens according to the third embodiment of the present invention. As shown in the figure, point PA represents the position of the lighting device 1. Line segment L1 represents the length of the peak light intensity. Points PB1 and PB2 correspond to the positions of 1 / 2 of the peak light intensity. θ represents the total light-emitting angle. Region CR represents the light intensity distribution of the light rays of the lighting device 1 in space. This definition applies to all embodiments and conforms to the judgment criteria in the art.

[0056] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device 1 with a compound lens according to this embodiment should still be included within the patent scope of the present invention.

[0057] Please refer to Figure 6 , which is a top view of the lighting device with a compound lens according to the fourth embodiment of the present invention. As shown in the figure, in this embodiment, the large-angle lens module 11 of the lighting device 1 includes 3 large-angle lens units 111. The small-angle lens module 12 of the lighting device 1 includes 4 small-angle lens units 121. The large-angle lens units 111 are circular, and the small-angle lens units 121 are also circular (HR represents the horizontal reference line, and VR represents the vertical reference line).

[0058] Different from the foregoing embodiments, the small-angle lens module 12 surrounds the large-angle lens module 11.

[0059] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device 1 with a compound lens according to this embodiment should still be included within the patent scope of the present invention.

[0060] Please refer to Figure 7 , which is a top view of the lighting device with a compound lens according to the fifth embodiment of the present invention. As shown in the figure, in this embodiment, the large-angle lens module 11 of the lighting device 1 includes 4 large-angle lens units 111. The small-angle lens module 12 of the lighting device 1 includes 3 small-angle lens units 121. The large-angle lens units 111 are circular, and the small-angle lens units 121 are also circular (HR represents the horizontal reference line, and VR represents the vertical reference line).

[0061] Different from the foregoing embodiments, these large-angle lens units 111 and these small-angle lens units 121 are alternately arranged.

[0062] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device 1 with a compound lens according to this embodiment should still be included within the patent scope of the present invention.

[0063] Please refer to Figure 8 , which is a top view of the lighting device with a compound lens according to the sixth embodiment of the present invention. As shown in the figure, in this embodiment, the large-angle lens module 11 of the lighting device 1 includes 6 large-angle lens units 111. The small-angle lens module 12 of the lighting device 1 includes 6 small-angle lens units 121. These large-angle lens units 111 and these small-angle lens units 121 are alternately arranged.

[0064] Different from the foregoing embodiments, the large-angle lens unit 111 is in a straight bar shape, and the small-angle lens unit 121 is also in a straight bar shape.

[0065] As can be seen from the above, the large-angle lens module 11 can surround the small-angle lens module 12, or the small-angle lens module 12 can also surround the large-angle lens module 11. In addition, a structural design in which a plurality of large-angle lens units 111 and a plurality of small-angle lens units 121 are alternately arranged can also be adopted. The large-angle lens unit 111 and the small-angle lens unit 121 are in a circular, elliptical, rectangular or straight bar shape. As can be seen from the above, the lighting device 1 can be realized through a variety of different lighting structures, so that the lighting device 1 not only has many changes in appearance, but also the performance of the lighting device 1 can meet the requirements of actual applications.

[0066] In addition, the lighting device 1 adopts a simple and ingenious design, enabling it to achieve the expected lighting effect under good cost control. Since there is no need to significantly increase the manufacturing cost, the practicability of the lighting device 1 is significantly improved. In this way, the lighting device 1 can not only conform to the development trend of future lighting technologies, but also meet different application requirements. Therefore, the application of the lighting device 1 can be more extensive.

[0067] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device with a compound lens according to this embodiment should still be included within the patent scope of the present invention.

[0068] In summary, according to the embodiments of the present invention, a lighting device includes a large-angle lens module and a small-angle lens module. The large-angle lens module includes one or more large-angle lens units. Each large-angle lens unit includes a lens and a plurality of first light sources covered by the lens. The lens includes two side walls and a first light-emitting surface disposed between the two side walls. The small-angle lens module includes one or more small-angle lens units. Each small-angle lens unit includes a plurality of light-emitting portions and a plurality of second light sources corresponding to the plurality of light-emitting portions, and each second light source is covered by the corresponding light-emitting portion. Each light-emitting portion includes a wall body and a second light-emitting surface disposed in the middle of the wall body. Through the above structural design of the large-angle lens module and the small-angle lens module, the total light-emitting angle of the large-angle lens module and the small-angle lens module can be positively correlated with the number of large-angle lens units, the total light-emitting angle is negatively correlated with the number of small-angle lens units, the total light-emitting angle is positively correlated with the number of the plurality of first light sources, and the total light-emitting angle is negatively correlated with the number of the plurality of second light sources. Therefore, the foregoing total light-emitting angle can be adjusted by changing the number of large-angle lens units, the number of small-angle lens units, the number of the plurality of first light sources or the number of the plurality of second light sources, so that the lighting device can meet the requirements of different applications.

[0069] Furthermore, according to an embodiment of the present invention, the lighting device realizes the lighting function by combining a large-angle lens module and a small-angle lens module. The structural design of the large-angle lens module and the small-angle lens module can accommodate a large number of light sources, endowing it with excellent optical performance. By flexibly adjusting the ratio of the large-angle lens unit to the small-angle lens unit, the lighting device can accurately control the total light-emitting angle according to actual needs to adapt to different application scenarios. In addition, the total luminous efficacy of the lighting device can also be greatly improved, effectively enhancing the utilization rate of light energy and reducing energy consumption. Therefore, this lighting device can not only meet diverse application requirements, but also effectively improve its performance and adaptability.

[0070] In addition, according to an embodiment of the present invention, the large-angle lens module can surround the small-angle lens module, or the small-angle lens module can also surround the large-angle lens module. Additionally, a structural design in which multiple large-angle lens units and multiple small-angle lens units are alternately arranged can also be adopted. The large-angle lens units and the small-angle lens units are circular, elliptical, rectangular, or linear strip-shaped. As can be seen from the above, the lighting device can be realized through a variety of different lighting structures, not only bringing many changes in appearance, but also enabling the performance of the lighting device to meet the requirements of practical applications.

[0071] Moreover, according to an embodiment of the present invention, the cross-section of the first light-emitting surface and the cross-section of the second light-emitting surface are inferior segment-shaped or triangular. This kind of structure can optimize the light distribution, making the light more uniform and soft, thereby reducing the irritation to the user's eyes and enhancing visual comfort. In addition, the structural design of the lighting device can easily regulate the total luminous efficacy and the total light-emitting angle, greatly improving the performance of the lighting device in different application scenarios. In this way, the lighting device can not only enhance the user experience, but also has higher flexibility and adaptability. Therefore, the lighting device can be used more flexibly to meet different lighting needs.

[0072] Furthermore, according to an embodiment of the present invention, the lighting device adopts a simple and ingenious design, enabling it to achieve the expected lighting effect under good cost control. Since there is no need to significantly increase the manufacturing cost, the practicality of the lighting device is significantly improved. In this way, the lighting device can not only conform to the development trend of future lighting technologies, but also meet different application requirements. Therefore, the lighting device can be more widely applied.

[0073] It should be noted that although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, any changes and modifications made to the embodiments described in this article, or any equivalent structural or equivalent process transformations made using the content of the specification and drawings of the present invention, and directly or indirectly applying the above technical solutions to other related technical fields, are all included in the protection scope of the present invention patent.

Claims

1. A lighting device having a composite lens, characterized in that: include: A large-angle lens module, comprising one or more large-angle lens units, each of which comprises a lens and a plurality of first light sources covered by the lens, wherein the lens comprises two side walls and a first light-emitting surface disposed between the two side walls; and The small-angle lens module includes one or more small-angle lens units, each of which includes multiple light-emitting parts and multiple second light sources corresponding to the multiple light-emitting parts, each of the second light sources is covered by the corresponding light-emitting part, and each of the light-emitting parts includes a wall and a second light-emitting surface arranged in the middle of the wall.

2. The lighting device with a compound lens according to claim 1, characterized in that: The large-angle lens module surrounds the small-angle lens module.

3. The lighting device with a compound lens according to claim 1, characterized in that: The small-angle lens module surrounds the large-angle lens module.

4. The lighting device with a compound lens according to claim 1, characterized in that: The plurality of large-angle lens units and the plurality of small-angle lens units are arranged alternately.

5. The lighting device with a compound lens according to claim 1, characterized in that: The large-angle lens unit is in a circular, elliptical, rectangular or straight strip shape.

6. The lighting device with a compound lens according to claim 1, characterized in that: The small-angle lens unit is in the shape of a circle, an ellipse, a rectangle or a straight line.

7. The lighting device with a compound lens according to claim 1, characterized in that: The total light output angle of the large-angle lens module and the small-angle lens module is positively correlated with the number of the large-angle lens units, the total light output angle is negatively correlated with the number of the small-angle lens units, the total light output angle is positively correlated with the number of the multiple first light sources, and the total light output angle is negatively correlated with the number of the multiple second light sources.

8. The lighting device with a composite lens according to claim 1, characterized in that: The cross-sections of the first light-emitting surface and the second light-emitting surface are in an inferior arc shape or a triangle shape.

9. The lighting device with a compound lens according to claim 1, characterized in that: Any one of the light emitting parts is in contact with an adjacent light emitting part.

10. The lighting device with a compound lens according to claim 1, characterized in that: The plurality of light emitting portions are adjacent to each other, and there is a distance between any one of the light emitting portions and the adjacent light emitting portions.

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