Light-emitting unit and lamp

Abstract

The invention discloses a light-emitting unit and a lamp. The light-emitting unit comprises a first light-emitting assembly and a second light-emitting assembly. The first light-emitting assembly is provided with a first light-emitting element and a first lens, and light emitted by the first light-emitting element is refracted by the first lens and then emitted out. The second light-emitting assembly is provided with a second light-emitting element and a second lens, and light emitted by the second light-emitting element is refracted by the second lens and then is emitted out; wherein the first light-emitting component is arranged around the second light-emitting component; under the condition that the first light-emitting element and / or the second light-emitting element are / is controlled to emit light differently, the light-emitting unit can output light beams at different angles. According to the light-emitting unit, the first light-emitting assembly is arranged around the second light-emitting assembly, so that the light rays emitted by the first light-emitting assembly and the second light-emitting assembly can be uniformly superposed, the light rays of the whole irradiation area are more uniform and consistent, and the phenomenon of disordered distribution of the light rays can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting fixtures, and in particular to a light-emitting unit and a lamp. Background Art

[0002] With the development of the lighting market, people's demand for lamps is increasing day by day, and lamps with a single angle can no longer meet people's daily lighting needs. Therefore, a lamp with a variable beam angle is proposed in the prior art.

[0003] For example, the invention patent with patent authorization announcement number: CN118167981A discloses an LED lamp with variable beam angle, including a driving power supply provided with a switching switch to control the opening and closing of different circuits connected to the driving power supply; the heat dissipation housing is installed with the driving power supply; at least two groups of LED lamp beads are arranged on the LED lamp board, wherein the LED lamp beads of each group of circuits are connected in series and parallel in sequence and then connected to the connecting contacts of the switching switch, and the required beam angle can be switched and adjusted by the switching switch; the single lens includes at least two groups of optical units with light output angles, the optical units match the positions of the LED lamp beads, and light beams of different angles are output when the light beams are irradiated to different optical units, by making a three-way controlled LED light-emitting circuit on the LED lamp board, and similarly optimizing the single lens into two optical angles, the LED driving power supply is controlled to switch the beam angle by switching the toggle switch to achieve more than two irradiation beams.

[0004] Based on the search of the above patent authorization announcement number and the shortcomings found therein:

[0005] In the existing lamps, LED lamp beads located in different circuits are alternately arranged on the LED lamp board. When the LED lamp beads in different circuits are all lit, the light may be distributed disorderly in the irradiation area. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a light-emitting unit to solve the technical problem that LED lamp beads located in different circuits in the existing lamps are alternately arranged on the LED lamp board. When the LED lamp beads in different circuits are all lit, the light may be distributed disorderly in the irradiated area.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] An embodiment of the present invention provides a light-emitting unit, comprising: a first light-emitting component and a second light-emitting component;

[0009] The first light-emitting assembly is provided with a first light-emitting element and a first lens, and the light emitted by the first light-emitting element is refracted by the first lens and then emitted;

[0010] The second light-emitting assembly is provided with a second light-emitting element and a second lens, and the light emitted by the second light-emitting element is refracted by the second lens and then emitted;

[0011] Among them, the first light-emitting component is arranged around the second light-emitting component; the first light-emitting angle of the first lens is different from the second light-emitting angle of the second lens, and under the different light-emitting conditions of controlling the first light-emitting element and / or the second light-emitting element, the light-emitting unit can output light beams with different angles.

[0012] Furthermore, the first lens is arranged around the center of the second lens; the first lens includes an annular convex structure far away from the first light-emitting element; and the second lens includes a spherical convex structure far away from the second light-emitting element.

[0013] Furthermore, the first light-emitting element includes a plurality of first light-emitting elements, and the plurality of first light-emitting elements are arranged in a ring shape and surround the second light-emitting element.

[0014] Further, when the first light emitting element emits light and the second light emitting element emits light at a first brightness, the light emitting unit emits light at a third light emitting angle; wherein the third light emitting angle is different from the first light emitting angle and the second light emitting angle;

[0015] And / or, when the first light-emitting element emits light and the second light-emitting element emits light at a second brightness, the light-emitting unit emits light at a fourth light-emitting angle; wherein the fourth light-emitting angle is different from the first light-emitting angle and the second light-emitting angle, and the first brightness is different from the second brightness;

[0016] and / or, when the first light emitting element emits light and the second light emitting element does not emit light, the light emitting unit emits light at a first light emitting angle;

[0017] And / or, when the second light-emitting element emits light and the first light-emitting element does not emit light, the light-emitting unit emits light with a second light-emitting angle.

[0018] Further, the first brightness is less than the second brightness;

[0019] The first light emitting angle is greater than the third light emitting angle, the third light emitting angle is greater than the fourth light emitting angle, and the fourth light emitting angle is greater than the second light emitting angle.

[0020] Further, the first light output angle is within the range of [105°, 115°]; the second light output angle is within the range of [40°, 50°]; the third light output angle is within the range of [85°, 95°]; the fourth light output angle is within the range of [55°, 65°];

[0021] and / or,

[0022] The first brightness is 35%-65% of the rated brightness of the second light-emitting element, and the second brightness is the rated brightness.

[0023] Furthermore, the number of the first light-emitting elements is 12, and the number of the second light-emitting elements is 4.

[0024] An embodiment of the present invention further provides a lamp, comprising a plurality of light-emitting units and a control module as described above;

[0025] The control module is used to control different light-emitting operations of the first light-emitting element and / or the second light-emitting element, so as to realize that the light-emitting unit outputs light beams at different angles.

[0026] Furthermore, the lamp also includes a lamp board, the light-emitting units are installed on the lamp board, the light-emitting units are arranged around the center of the lamp board, and include at least 2 circles of the light-emitting units, and the light-emitting units of adjacent circles are staggered in the radial direction.

[0027] Furthermore, the control module further comprises a switching circuit, wherein the switching circuit is electrically connected to all the first light emitting elements and the second light emitting elements of each of the light emitting units;

[0028] The switching circuit includes a first switching switch, a second switching switch and a third switching switch;

[0029] When the first switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at a second brightness;

[0030] When the second switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at a first brightness;

[0031] When the third switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements not to emit light.

[0032] The light-emitting unit of the present invention arranges the first light-emitting component around the second light-emitting component so that the light emitted by the first light-emitting component and the second light-emitting component can be evenly superimposed, making the light in the entire irradiation area more uniform and consistent, which helps to reduce the phenomenon of disorderly distribution of light.

[0033] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a first stereoscopic view of a light emitting unit according to an embodiment of the present invention;

[0035] Figure 2 is a second stereoscopic view of a light emitting unit according to an embodiment of the present invention;

[0036] Figure 3 is a top view of a light emitting unit according to an embodiment of the present invention;

[0037] Figure 4 A bottom view of a light emitting unit according to an embodiment of the present invention;

[0038] Figure 5 is a side view of a light emitting unit according to an embodiment of the present invention;

[0039] Figure 6 is a cross-sectional view of a light emitting unit according to an embodiment of the present invention;

[0040] Figure 7 This is an optical simulation diagram when the light emitting unit of the embodiment of the present invention emits light at a first light output angle;

[0041] Figure 8 This is a data diagram when the light emitting unit of the embodiment of the present invention emits light at the first light emitting angle;

[0042] Fig. 9 It is an optical simulation diagram when the light emitting unit of the embodiment of the present invention emits light at a second light emitting angle;

[0043] Fig.10 This is a data diagram when the light emitting unit of the embodiment of the present invention emits light at a second light emitting angle;

[0044] Fig.11 This is a light simulation diagram when the light emitting unit of the embodiment of the present invention emits light at a third light emitting angle;

[0045] Fig.12 This is a data diagram when the light emitting unit of the embodiment of the present invention emits light at a third light emitting angle;

[0046] Fig.13 This is a light simulation diagram when the light emitting unit of the embodiment of the present invention emits light at a fourth light emitting angle;

[0047] Fig.14 This is a data diagram when the light emitting unit of the embodiment of the present invention emits light at a fourth light emitting angle;

[0048] Fig.15 is a first stereoscopic view of a lamp according to an embodiment of the present invention;

[0049] Fig.16It is a schematic diagram of the connection between a light board and a plurality of light-emitting units in a lamp according to an embodiment of the present invention;

[0050] Fig.17 is a second stereoscopic view of the lamp according to the embodiment of the present invention;

[0051] Fig.18 is a top view of a lamp according to an embodiment of the present invention;

[0052] Fig.19 is a bottom view of the lamp according to an embodiment of the present invention;

[0053] Fig. 20 for Fig.19 A magnified view of part A;

[0054] Fig.21 Schematic diagram of a switching circuit of a lamp according to an embodiment of the present invention.

[0055] Description of reference numerals:

[0056] 1. Light-emitting unit; 11. First light-emitting assembly; 111. First light-emitting element; 112. First lens; 1121. Ring-shaped protruding structure; 12. Second light-emitting assembly; 121. Second light-emitting element; 122. Second lens; 1221. Spherical protruding structure;

[0057] 2. Lamp; 21. Lamp board; 22. Housing; 221. Heat dissipation fins; 23. Power supply. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0060] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “resin”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0065] Please see attached Figure 1 and Figure 2 , Figure 1 This is a first stereoscopic view of the light emitting unit 1 according to an embodiment of the present invention. Figure 2The second stereoscopic view of the light-emitting unit 1 according to the embodiment of the present invention. The embodiment of the present invention provides a light-emitting unit 1, comprising: a first light-emitting component 11 and a second light-emitting component 12; the first light-emitting component 11 is provided with a first light-emitting element 111 and a first lens 112, and the light emitted by the first light-emitting element 111 is emitted after being refracted by the first lens 112; the second light-emitting component 12 is provided with a second light-emitting element 121 and a second lens 122, and the light emitted by the second light-emitting element 121 is emitted after being refracted by the second lens 122; wherein, the first light-emitting component 11 is arranged around the second light-emitting component 12; the first light-emitting angle of the first lens 112 and the second light-emitting angle of the second lens 122 are different, and the light-emitting unit 1 can output light beams of different angles under different light-emitting conditions of controlling the first light-emitting element 111 and / or the second light-emitting element 121.

[0066] In some embodiments, the first lens 112 and the second lens 122 may be different parts of the same lens as a whole, that is, the first lens 112 and the second lens 122 are an integrated structure. Therefore, the light-emitting unit 1 of this embodiment does not need to align the first lens 112 and the second lens 122 during the assembly stage, and only needs to install the first light-emitting element 111 and the second light-emitting element 121 to the corresponding positions on the lens as a whole having the first lens 112 and the second lens 122, thereby reducing the assembly difficulty of the light-emitting unit 1 and improving the assembly efficiency. In other embodiments, the first lens 112 and the second lens 122 may also be independent split structures.

[0067] In some embodiments, the first light emitting element 111 and the second light emitting element 121 may be LED lamp beads. Optionally, the first light emitting element 111 and the second light emitting element 121 are LED lamp beads with the same configuration, that is, the first light emitting element 111 and the second light emitting element 121 have the same operating voltage, rated power, rated brightness and other parameters.

[0068] In some embodiments, the first light-emitting component 11 is disposed around the second light-emitting component 12, and the central axes of the first light-emitting component 11 and the second light-emitting component 12 coincide with each other. It is understandable that by disposing the first light-emitting component 11 around the second light-emitting component 12, the light emitted by the first light-emitting component 11 and the second light-emitting component 12 can be evenly superimposed, so that the light in the entire irradiation area is more uniform and consistent, which helps to reduce the phenomenon of messy distribution of light.

[0069] As an example, Figure 1 In the figure, the first light emitting component 11 is in a ring shape so as to surround the second light emitting component 12, but the present application is not limited thereto. The first light emitting component 11 may also be in a square, rectangular, circular or other shape, which can be selected as needed.

[0070] Surrounding can be completely surrounding, which means that the first light-emitting component 11 completely surrounds the second light-emitting component 12, which means that from any side of the second light-emitting component 12, the first light-emitting component 11 can be seen surrounding it. For example, the second light-emitting component 12 is a circular LED lamp, and the first light-emitting component 11 is a ring-shaped LED light strip. This ring-shaped LED light strip is completely wrapped around the periphery of the circular LED lamp to form a perfect ring without any disconnected or missing parts. This is an example of complete surrounding. Surrounding can also be partially surrounding, which means that the first light-emitting component 11 only surrounds a part of the second light-emitting component 12, but not all of it. This means that from certain directions of the second light-emitting component 12, the first light-emitting component 11 can be seen, but not from other directions. For example, the second light-emitting component 12 is a circular LED lamp, and the first light-emitting component 11 is a semicircular LED light strip. The semicircular LED light strip only covers half of the circular LED lamp. The semicircular LED light strip can be seen from one side of the circular LED lamp, but not from the other side. This is an example of partial surrounding. For another example, the second light-emitting component 12 is a rectangular LED panel, and the first light-emitting component 11 is three connected rectangular LED light strips, which only surround three sides of the rectangular LED panel (such as the top, left, and right sides), but not the bottom. This is also an example of partial surrounding.

[0071] It should be explained that the first lens 112 allows the light emitted by the first light-emitting element 111 to be emitted at a preset first light-emitting angle after refraction, and the setting of the first light-emitting angle can be achieved by designing the curvature, transmittance, refractive index and other parameters of the first lens 112, which will not be described in detail here. Similarly, the second lens 122 allows the light emitted by the second light-emitting element 121 to be emitted at a preset second light-emitting angle after refraction, and the setting of the second light-emitting angle can be achieved by designing the curvature, transmittance, refractive index and other parameters of the second lens 122, which will not be described in detail here.

[0072] Furthermore, the first lens 112 is arranged around the center of the second lens 122. It can be understood that, based on the refraction of light by the lens and the propagation law of light in the lens, since the first lens 112 is arranged around the center of the second lens 122, the light from the two groups of lenses can be intertwined in the irradiation area, thereby reducing the phenomenon of light overlap and clutter, and achieving more uniform light distribution.

[0073] Specifically, see Figures 3 to 6 , Figure 3 is a top view of the light emitting unit 1 according to an embodiment of the present invention, Figure 4 This is a bottom view of the light emitting unit 1 according to an embodiment of the present invention. Figure 5 is a side view of the light emitting unit 1 according to an embodiment of the present invention, Figure 6It is a cross-sectional view of the light-emitting unit 1 of the embodiment of the present invention. In this embodiment, the first lens 112 includes an annular protrusion structure 1121 that is far away from the first light-emitting element 111. The first light-emitting element 111 is installed in an annular groove with a protrusion direction opposite to the annular protrusion structure 1121. The annular protrusion structure 1121 can make the light form a wider beam angle after refraction. The second lens 122 includes a spherical protrusion structure 1221 that is far away from the second light-emitting element 121. The second light-emitting element 121 is installed in a spherical groove with a protrusion direction opposite to the spherical protrusion structure 1221. The spherical protrusion structure 1221 can achieve a more concentrated beam output.

[0074] Furthermore, the first light emitting element 111 includes a plurality of first light emitting elements 111 , which are arranged in a ring shape and surround the second light emitting element 121 .

[0075] In some embodiments, the plurality of first light-emitting elements 111 may be arranged at intervals in the annular grooves in opposite directions of the annular protrusion structure 1121. Preferably, the plurality of first light-emitting elements 111 may be arranged at equal intervals in the annular grooves in opposite directions of the annular protrusion structure 1121. It is understood that the annular shape formed by the plurality of first light-emitting elements 111 should be similar to or identical to the annular shape of the annular protrusion structure 1121.

[0076] In some embodiments, at least one second light-emitting element 121 is provided, and the second light-emitting element 121 corresponds to the spherical protrusion structure 1221 one by one. In some embodiments, when there is one second light-emitting element 121, the center of the ring formed by the plurality of first light-emitting elements 111 coincides with the center of the second light-emitting element 121. In some embodiments, when there are a plurality of second light-emitting elements 121, the plurality of second light-emitting elements 121 are surrounded in a ring, the ring formed by the plurality of first light-emitting elements 111 surrounds all the second light-emitting elements 121, and the ring formed by the plurality of first light-emitting elements 111 coincides with the center of the ring formed by the plurality of second light-emitting elements 121. In some embodiments, when there are a plurality of second light-emitting elements 121, the plurality of second light-emitting elements 121 are arranged at equal intervals and surrounded in a ring.

[0077] In some embodiments, the number of first light emitting elements 111 is greater than the number of second light emitting elements 121 .

[0078] Furthermore, under different lighting conditions of controlling the first light-emitting element 111 and / or the second light-emitting element 121, the light-emitting unit 1 can output light beams at different angles. Four different implementations are illustrated below, but it should be noted that the following are only a limited number of examples, and the number of examples does not represent all implementations that can be implemented by the light-emitting unit 1 of the present application.

[0079] The first implementation method: Figure 7 and Figure 8 As shown, Figure 7 This is an optical simulation diagram of the light emitting unit 1 of the embodiment of the present invention when emitting light at the first light emitting angle. Figure 8 This is a data diagram when the light emitting unit 1 of the embodiment of the present invention emits light at the first light emitting angle. When the first light emitting element 111 emits light and the second light emitting element 121 does not emit light, the light emitting unit 1 emits light at the first light emitting angle. Optionally, the first light emitting element 111 emits light at a rated brightness.

[0080] in, Figure 7 The circumferential coordinate in is the light output angle, and the radial coordinate is the light intensity value. Figure 7 It can be seen from the figure that when the light emitting unit 1 is simulated to emit light at the first light output angle, the maximum light intensity is 138.55 cd (candela), and the angle of 50% light intensity is approximately 110°. Figure 8 The slice angle 0.0000 in represents the horizontal plane, and the slice angle 90.000 represents the vertical plane. Figure 8 It can be seen that when the light emitting unit 1 is simulated to emit light at the first light emitting angle, the light emitting angle on the horizontal plane is 111.42°, and the light emitting angle on the vertical plane is 111.40°. It should be noted that Figure 7 It only represents the optical simulation result that can be achieved by the light-emitting unit 1 of the present application. Figure 8 It only represents a simulation measurement result that can be achieved by the light-emitting unit 1 of the present application, and is not a complete implementation method of the light-emitting unit 1 of the present application emitting light at the first light output angle.

[0081] The second implementation method: Fig. 9 and Fig.10 As shown, Fig. 9 This is an optical simulation diagram when the light emitting unit 1 of the embodiment of the present invention emits light at a second light emitting angle. Fig.10 This is a data diagram when the light emitting unit 1 of the embodiment of the present invention emits light at the second light emitting angle. When the second light emitting element 121 emits light and the first light emitting element 111 does not emit light, the light emitting unit 1 emits light at the second light emitting angle.

[0082] in, Fig. 9 The circumferential coordinate in is the light output angle, and the radial coordinate is the light intensity value. Fig. 9 It can be seen from the figure that when the light emitting unit 1 is simulated to emit light at the second light emitting angle, the maximum light intensity is 72.765 cd, and the angle of 50% light intensity is approximately 50°. Fig.10It can be seen from the figure that when the light emitting unit 1 is simulated to emit light at the second light emitting angle, the light emitting angle on the horizontal plane is 49.204°, and the light emitting angle on the vertical plane is 48.716°. It should be noted that Fig. 9 It only represents the optical simulation result that can be achieved by the light-emitting unit 1 of the present application. Fig.10 It only represents a simulation measurement result that can be achieved by the light-emitting unit 1 of the present application, and is not a complete implementation method of the light-emitting unit 1 of the present application emitting light at the second light output angle.

[0083] The third implementation method: Fig.11 and Fig.12 As shown, Fig.11 This is an optical simulation diagram when the light emitting unit 1 of the embodiment of the present invention emits light at a third light output angle. Fig.12 This is a data diagram when the light emitting unit 1 of the embodiment of the present invention emits light at the third light emitting angle. When the first light emitting element 111 emits light and the second light emitting element 121 emits light at the first brightness, the light emitting unit 1 emits light at the third light emitting angle; wherein the third light emitting angle is different from the first light emitting angle and the second light emitting angle. wherein the first light emitting element 111 emits light at the rated brightness.

[0084] in, Fig.11 The circumferential coordinate in is the light output angle, and the radial coordinate is the light intensity value. Fig.11 It can be seen from the figure that when the light emitting unit 1 is simulated to emit light at the third light emitting angle, the maximum light intensity is 185.38 cd, and the angle of 50% light intensity is approximately 90°. Fig.12 It can be seen from the figure that when the light emitting unit 1 is simulated to emit light at the third light emitting angle, the light emitting angle on the horizontal plane is 92.387°, and the light emitting angle on the vertical plane is 92.402°. It should be noted that Fig.11 It only represents the optical simulation result that can be achieved by the light-emitting unit 1 of the present application. Fig.12 It only represents a simulation result that can be achieved by the light-emitting unit 1 of the present application, and is not a complete implementation method of the light-emitting unit 1 of the present application emitting light at the third light output angle.

[0085] The fourth implementation method: Fig.13 and Fig.14 As shown, Fig.13 This is an optical simulation diagram when the light emitting unit 1 of the embodiment of the present invention emits light at a fourth light emitting angle. Fig.14This is a data diagram when the light emitting unit 1 of the embodiment of the present invention emits light at the fourth light emitting angle. When the first light emitting element 111 emits light and the second light emitting element 121 emits light at the second brightness, the light emitting unit 1 emits light at the fourth light emitting angle; wherein the fourth light emitting angle is different from the first light emitting angle, the second light emitting angle, and the third light emitting angle, and the first brightness is different from the second brightness. wherein the first light emitting element 111 emits light at the rated brightness.

[0086] in, Fig.13 The circumferential coordinate in is the light output angle, and the radial coordinate is the light intensity value. Fig.13 It can be seen from the figure that when the light emitting unit 1 is simulated to emit light at the fourth light emitting angle, the maximum light intensity is 331.07 cd, and the angle of 50% light intensity is approximately 60°. Fig.14 It can be seen from the figure that when the light emitting unit 1 is simulated to emit light at the fourth light emitting angle, the light emitting angle on the horizontal plane is 64.479°, and the light emitting angle on the vertical plane is 65.422°. It should be noted that Fig.13 It only represents the optical simulation result that can be achieved by the light-emitting unit 1 of the present application. Fig.14 It only represents a simulation result that can be achieved by the light-emitting unit 1 of the present application, and does not serve as a complete implementation method of the light-emitting unit 1 of the present application emitting light at the fourth light output angle.

[0087] It should be explained that the light output angle refers to the diffusion angle of light when it is emitted from a light source or a lamp bead, which is defined as the angle of 50% luminous intensity, that is, the angle from the center line of the light beam to the point where the light intensity drops to 50% of the maximum light intensity of the center line. When the light-emitting unit 1 of the present application emits a light beam of the third light output angle and a light beam of the fourth light output angle, the first light-emitting element 111 in the first light-emitting component 11 and the second light-emitting element 121 in the second light-emitting component 12 are both luminous, and the only difference is that the luminous brightness of the second light-emitting element 121 is different. By changing the luminous brightness of the second light-emitting element 121 to change the maximum light intensity and regional light intensity of the superposition area of ​​the light beams of the first light-emitting element 111 and the second light-emitting element 121, the light output angle of the light-emitting unit 1 is changed. It can be understood that in the present application, when both the first light-emitting element 111 and the second light-emitting element 121 are luminous, the switching of the third light output angle and the fourth light output angle of the light-emitting unit 1 is realized by changing the luminous brightness of the second light-emitting element 121, thereby improving the utilization rate of the light-emitting elements in the light-emitting unit 1.

[0088] It can be understood that, compared with the prior art, the light emitting unit 1 of the present application can control the first light emitting element 111 or the second light emitting element 121 to emit light at the first light emitting angle or the second light emitting angle, and can also control the first light emitting element 111 and the second light emitting element 121 to emit light at the third light emitting angle or the fourth light emitting angle, thereby providing more diverse lighting angle options. In practical applications, the light emitting unit 1 can be made to have different selectable light emitting angles.

[0089] Specifically, the first brightness is lower than the second brightness; the first light emitting angle is higher than the third light emitting angle, the third light emitting angle is higher than the fourth light emitting angle, and the fourth light emitting angle is higher than the second light emitting angle.

[0090] In some embodiments, the first light output angle is in the range of [105°, 115°]; the second light output angle is in the range of [40°, 50°]; the third light output angle is in the range of [85°, 95°]; and the fourth light output angle is in the range of [55°, 65°].

[0091] In some embodiments, the first light emitting angle is 110°, the second light emitting angle is 45°, the third light emitting angle is 90°, and the fourth light emitting angle is 60°.

[0092] In some embodiments, the light-emitting unit 1 of the present application is applied to industrial and mining lamps. Currently, common operating angles of industrial and mining lamps on the market include 60°, 90°, and 110°. In this embodiment, the light-emitting unit 1 of the present application can have three switchable light-emitting angles, namely a first light-emitting angle of 110°, a third light-emitting angle of 90°, and a fourth light-emitting angle of 60°, to meet the light-emitting angle requirements for industrial and mining lamps in existing application scenarios.

[0093] In some embodiments, the first brightness is 35%-65% of the rated brightness of the second light emitting element 121, and the second brightness is the rated brightness. It is understandable that in this embodiment, the light emitting brightness of the second light emitting element 121 can be controlled to be the first brightness or the second brightness by controlling the amount of electric energy connected to the second light emitting element 121, and the specific settings are not repeated here.

[0094] In some embodiments, 12 first light-emitting elements 111 are provided, and 4 second light-emitting elements 121 are provided. In some embodiments, 12 first light-emitting elements 111 surround to form a first ring, and 4 second light-emitting elements 121 surround to form a second ring, the first ring surrounds the second ring, and the first ring and the second ring are coaxial. In some embodiments, 12 first light-emitting elements 111 are evenly arranged along the circumference of the first ring, and 4 second light-emitting elements 121 are evenly arranged along the circumference of the second ring.

[0095] In this embodiment, when the light-emitting unit 1 emits light at the first light-emitting angle, 12 first light-emitting elements 111 emit light, and 4 second light-emitting elements 121 do not emit light. At this time, the light-emitting element utilization rate of the light-emitting unit 1 of the present application is 75%. When the light-emitting unit 1 emits light at the third light-emitting angle, 12 first light-emitting elements 111 emit light, and 4 second light-emitting elements 121 emit light at the first brightness, and the first brightness is 40% of the rated brightness of the second light-emitting element 121. At this time, the light-emitting element utilization rate of the light-emitting unit 1 of the present application is 85%. When the light-emitting unit 1 emits light at the fourth light-emitting angle, 12 light-emitting elements emit light, and 4 second light-emitting elements 121 emit light at the second brightness, and the second brightness is the rated brightness of the second light-emitting element 121. At this time, the light-emitting element utilization rate of the light-emitting unit 1 of the present application is 100%. It can be understood that when the light-emitting unit 1 of the present application emits light at the first light-emitting angle, the third light-emitting angle, and the fourth light-emitting angle, the light-emitting element utilization rate is greater than 50%, which significantly improves the light-emitting element utilization rate.

[0096] See also Fig.15 , Fig.15 The first stereoscopic view of the lamp 2 of the embodiment of the present invention. The embodiment of the present invention also provides a lamp 2, comprising a plurality of light-emitting units 1 as described above and a control module; the control module is used to control different light-emitting operations of the first light-emitting element 111 and / or the second light-emitting element 121, so as to realize that the light-emitting unit 1 outputs light beams of different angles.

[0097] In some embodiments, the lamp 2 of the present application is a mining lamp, also known as a high bay lamp. In some embodiments, the lamp 2 of the present application can also be a household lamp or a commercial lamp.

[0098] It is understandable that the lamp 2 of the present application, by integrating multiple light-emitting units 1, at least one of the first light-emitting element 111 and the second light-emitting element 121 in each light-emitting unit 1 is emitted, regardless of the light-emitting angle of the lamp 2 of the present application, which can not only improve the lighting quality, but also enhance the atmosphere and visual effect of the scene. At the same time, the present application uses multiple light-emitting units 1 integrated with the first light-emitting element 111 and the second light-emitting element 121. Compared with the traditional lamps in which the LED lamp beads located in different circuits are alternately arranged on the LED lamp board 21, the lamp 2 of the present application has higher flexibility in layout.

[0099] In some embodiments, Fig.15 , Fig.16 as well as Fig.18 As shown, Fig.16 Schematic diagram of the connection between the light board 21 and the plurality of light-emitting units 1 in the lamp 2 according to the embodiment of the present invention. Fig.18It is a top view of the lamp 2 of the embodiment of the present invention. In this embodiment, the lamp 2 also includes a lamp board 21, and the light-emitting units 1 are installed on the lamp board 21. The light-emitting units 1 are arranged around the center of the lamp board 21, and include at least 2 circles of light-emitting units 1. The light-emitting units 1 of adjacent circles are staggered in the radial direction.

[0100] It is understandable that the staggered arrangement of the light emitting units 1 in adjacent circles can avoid excessive concentration of light in a certain direction, thereby achieving a more uniform lighting effect. Specifically, the light emitted by the light emitting units 1 in adjacent circles is superimposed in space, and due to the staggered arrangement, the light distribution will be more uniform, thereby reducing the difference in brightness and darkness.

[0101] In some embodiments, Fig.17 , Fig.19 As shown, Fig.17 This is a second stereoscopic view of the lamp 2 according to the embodiment of the present invention. Fig.19 It is a bottom view of the lamp 2 of the embodiment of the present invention. The lamp 2 further includes a housing 22, the lamp board 21 is mounted on the housing 22, and the housing 22 is provided with heat dissipation fins 221. During the operation of the lamp 2, the heat generated by the light-emitting unit 1 and the lamp board 21 can be dissipated through the housing 22 and the heat dissipation fins 221, which effectively improves the service life of the lamp 2. In some embodiments, the lamp 2 further includes a power supply 23, which is mounted on the housing 22, so that the lamp 2 of the present application can be supplied with electric energy by the power supply 23 itself to emit light, solving the problem that it can only work by external power.

[0102] In some embodiments, the control module further includes a switching circuit, which is electrically connected to all first light-emitting elements 111 and second light-emitting elements 121 of each light-emitting unit 1. Preferably, the switching circuit is disposed on the light board 21. In some embodiments, the switching circuit includes a first switching switch, a second switching switch, and a third switching switch. When the first switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at the second brightness; when the second switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at the first brightness; when the third switching switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to not emit light.

[0103] In some embodiments, Fig. 20 and Fig.21 As shown, Fig. 20 for Fig.19 A magnified view of part A. Fig.21 Schematic diagram of the switching circuit of the lamp 2 according to the embodiment of the present invention. Fig. 20 The operating element K that can be operated by the user is included. Fig.21The switching circuit in the lamp 2 includes a first light emitting element group 30 composed of all first light emitting elements 111 in the lamp 2, a second light emitting element group 40 composed of all second light emitting elements 121 in the lamp 2, a first switching switch S1, a second switching switch S2, a third switching switch S3, an operating member K and a resistor group 50. The operating member K is movably arranged between the first switching switch S1, the second switching switch S2 and the third switching switch S3, and the resistor group 50 is electrically connected between the second light emitting element group 40 and the second switching switch S2. It should be noted that Fig.21 This is only one implementation that can be realized by the switching circuit in the lamp 2 of the present application. The switching circuit in the lamp 2 of the present application can also be realized by other designed circuits. The following uses a limited number of examples to illustrate three implementations of the switching circuit to switch the light output angle of the lamp 2.

[0104] The first embodiment: when the user operates the operating member K to turn on the first switching switch S1, the first light-emitting element group 30 is energized, the second light-emitting element group 40 is energized, and the resistor group 50 is not energized, so that all the first light-emitting elements 111 in the first light-emitting element group 30 emit light, and all the second light-emitting elements 121 in the second light-emitting element group 40 emit light at the second brightness. At this time, the lamp 2 of the present application emits light at a fourth light output angle.

[0105] Second implementation mode: When the user operates the operating member K to turn on the second switch S2, the first light-emitting element group 30 is powered on, the second light-emitting element group 40 is powered on, and the resistor group 50 is powered on, so that all the first light-emitting elements 111 in the first light-emitting element group 30 emit light, and all the second light-emitting elements 121 in the second light-emitting element group 40 emit light at the first brightness. At this time, the lamp 2 of the present application emits light at the third light output angle. It can be understood that the resistor group 50 in this embodiment plays a role in regulating the working power of the second light-emitting element group 40. When the resistor group 50 is powered on, the working power of the second light-emitting element group 40 decreases; when the resistor group 50 is not powered on, the second light-emitting element group 40 works at the rated power.

[0106] The third implementation mode: when the user operates the operating member K to turn on the third switching switch S3, the first light-emitting element group 30 is energized, the second light-emitting element group 40 is not energized, and the resistor group 50 is not energized. Thus, all the first light-emitting elements 111 in the first light-emitting element group 30 emit light, and all the second light-emitting elements 121 in the second light-emitting element group 40 do not emit light. At this time, the lamp 2 of the present application emits light at the first light output angle.

[0107] The above examples are only used to further illustrate the technical content of the present invention, so that readers can understand it more easily, but they do not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A light emitting unit, characterized in that: The light-emitting unit includes a first light-emitting component and a second light-emitting component; The first light-emitting assembly is provided with a first light-emitting element and a first lens, and the light emitted by the first light-emitting element is refracted by the first lens and then emitted; The second light-emitting assembly is provided with a second light-emitting element and a second lens, and the light emitted by the second light-emitting element is refracted by the second lens and then emitted; Among them, the first light-emitting component is arranged around the second light-emitting component; the first light-emitting angle of the first lens is different from the second light-emitting angle of the second lens, and under the different light-emitting conditions of controlling the first light-emitting element and / or the second light-emitting element, the light-emitting unit can output light beams with different angles.

2. The light emitting unit according to claim 1, characterized in that: The first lens is arranged around the center of the second lens; the first lens includes an annular convex structure far away from the first light-emitting element; the second lens includes a spherical convex structure far away from the second light-emitting element.

3. The light emitting unit according to claim 1 or 2, characterized in that: The first light-emitting elements include a plurality of first light-emitting elements, which are arranged in a ring shape and surround the second light-emitting element.

4. The light emitting unit according to claim 1, characterized in that: When the first light emitting element emits light and the second light emitting element emits light at a first brightness, the light emitting unit emits light at a third light emitting angle; wherein the third light emitting angle is different from the first light emitting angle and the second light emitting angle; And / or, when the first light-emitting element emits light and the second light-emitting element emits light at a second brightness, the light-emitting unit emits light at a fourth light-emitting angle; wherein the fourth light-emitting angle is different from the first light-emitting angle and the second light-emitting angle, and the first brightness is different from the second brightness; and / or, when the first light emitting element emits light and the second light emitting element does not emit light, the light emitting unit emits light at a first light emitting angle; And / or, when the second light-emitting element emits light and the first light-emitting element does not emit light, the light-emitting unit emits light with a second light-emitting angle.

5. A light emitting unit according to claim 4, characterized in that: The first brightness is less than the second brightness; The first light emitting angle is greater than the third light emitting angle, the third light emitting angle is greater than the fourth light emitting angle, and the fourth light emitting angle is greater than the second light emitting angle.

6. A light emitting unit according to claim 4, characterized in that: The first light output angle is in the range of [105°, 115°]; the second light output angle is in the range of [40°, 50°]; the third light output angle is in the range of [85°, 95°]; the fourth light output angle is in the range of [55°, 65°]; and / or, The first brightness is 35%-65% of the rated brightness of the second light-emitting element, and the second brightness is the rated brightness.

7. A light emitting unit according to claim 3, characterized in that: There are 12 first light-emitting elements and 4 second light-emitting elements.

8. A lamp, characterized in that: Comprising a plurality of light emitting units and control modules according to any one of claims 1 to 7; The control module is used to control different light-emitting operations of the first light-emitting element and / or the second light-emitting element, so as to realize that the light-emitting unit outputs light beams at different angles.

9. The lamp according to claim 8, characterized in that: The lamp also includes a lamp board, the light-emitting units are mounted on the lamp board, the light-emitting units are arranged around the center of the lamp board, and include at least two circles of the light-emitting units, and the light-emitting units of adjacent circles are staggered in the radial direction.

10. The lamp according to claim 8, characterized in that: The control module further comprises a switching circuit, wherein the switching circuit is electrically connected to all the first light emitting elements and the second light emitting elements of each of the light emitting units; The switching circuit includes a first switching switch, a second switching switch and a third switching switch; When the first switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at a second brightness; When the second switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements to emit light at a first brightness; When the third switch is turned on, the control module controls all the first light-emitting elements to emit light and all the second light-emitting elements not to emit light.

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