Light emitting mechanism and lamp

Abstract

The present disclosure provides a light emitting mechanism and a lamp; the light emitting mechanism comprises a light source and an optical element corresponding to the position of the light source; the light source has at least two light emitting areas, and the light rays of each light emitting area sequentially form emergent light, refracted light and reflected light through the optical element; the refracted light of each light emitting area forms a reflection band on the inner reflection surface of the optical element; the distance between the reflection upper limit point of the reflection band and the light source is greater than the distance between the reflection lower limit point of the reflection band and the light source; the reflected light of the reflection upper limit point and the reflected light of the reflection lower limit point intersect positively; by increasing the number of light emitting points of the light emitting area, the reflection upper limit point can gradually move away from the light source along the inner reflection surface, thereby adjusting the included angle between the reflected light formed by the reflection of the refracted light through the reflection upper limit point and the reflected light formed by the reflection upper limit point, and correspondingly adjusting the beam angle formed by the light rays finally projected by the reflected light through the optical element, i.e. the light emitting angle of the light source changes.

Description

Technical Field

[0001] This disclosure relates to the technical field of lighting equipment, and in particular to a light-emitting mechanism and a luminaire. Background Technology

[0002] Currently, the adjustment of the light emission angle of lamps mainly relies on mechanical structures, achieved through manual or motor-driven methods. However, these complex transmission mechanisms are prone to jamming or malfunction, and they also occupy a large space, resulting in high production costs and bulky sizes. To simplify the lamp structure, some manufacturers adopt optical structures such as those provided in Chinese patent document CN118900475A. However, this mainly achieves a limited number of different light emission angles by simultaneously equipping different light source elements with different optical elements. If it is necessary to add switching between different light emission angles, it is necessary to increase the number of light source elements and the corresponding number of lenses with different light emission angles. The adjustment range of the light emission angle is thus limited by the number of light source elements and the number of different lenses. Utility Model Content

[0003] The purpose of this disclosure is to overcome the shortcomings of the prior art and to provide a light emission mechanism and lamp that can more flexibly adjust the light emission angle.

[0004] The purpose of this disclosure is achieved through the following technical solution: A light-emitting mechanism includes a light source component and optical components corresponding to different positions; The light source has at least two light-emitting areas. The light from each light-emitting area is sequentially formed into emitted light, refracted light, and reflected light by the optical component. The refracted light from each light-emitting area forms a reflection band on the inner reflection surface of the optical component. The distance between the upper limit point of the reflection band and the light source is greater than the distance between the lower limit point of the reflection band and the light source. The reflected light from the upper limit point and the reflected light from the lower limit point intersect in the positive direction. As the number of light-emitting areas increases, the upper reflection point of the reflective strip gradually moves away from the light source along the inner reflection surface of the optical element.

[0005] In some embodiments, each of the light-emitting areas is distributed sequentially from a position corresponding to the center of the optical element to a position corresponding to the edge of the optical element.

[0006] In some embodiments, the light source has a circular light-emitting area and a first annular light-emitting area; the circular light-emitting area is located within the inner ring of the first annular light-emitting area.

[0007] In some embodiments, at a first preset brightness, the light-emitting mechanism is configured to be a first beam angle when the circular light-emitting area is lit; or, The circular light-emitting area and the first annular light-emitting area together form the first composite light-emitting area. At the second preset brightness, the light-emitting mechanism is configured as the second beam angle when the first composite light-emitting area is lit.

[0008] In some embodiments, the light source further has a second annular light-emitting area; the first annular light-emitting area is located within the inner ring of the second annular light-emitting area.

[0009] In some embodiments, the circular light-emitting area, the first annular light-emitting area, and the second annular light-emitting area together constitute a second composite light-emitting area. At a third preset brightness, the light-emitting mechanism is configured to be a third beam angle when the second composite light-emitting area is lit.

[0010] In some embodiments, the refractive index of the optical element is 1.5 to 1.7.

[0011] In some embodiments, the light source protrudes to form a crown-like structure, and each of the light-emitting areas is formed on the surface of the crown-like structure; or... The light source element has a recessed groove structure, and each of the light-emitting areas is formed on the surface of the groove structure; or... The light source has a protruding boss structure, and each of the light-emitting areas is formed on the surface of the boss structure.

[0012] In some embodiments, adjacent light-emitting areas form a composite light-emitting area, and the light-emitting mechanism is configured to be a composite beam angle when the composite light-emitting area is lit; each light-emitting area is configured to emit light with varying brightness to increase or decrease the composite beam angle.

[0013] A lighting fixture includes a light-emitting mechanism according to any of the above embodiments.

[0014] Compared with the prior art, this disclosure has at least the following advantages: In the aforementioned light-emitting mechanism, due to the corresponding positions of the light source and optical components, light from each emitting area can be projected onto the optical component to form incident light. After refraction by the optical component, the incident light enters the component and forms refracted light. The refracted light from each emitting area is projected onto the inner reflective surface of the optical component, forming a reflection band. A lower reflection limit point is formed at the edge of the reflection band closest to the light source, while an upper reflection limit point is formed at the edge farthest from the light source. By increasing the number of lit emitting areas, the upper reflection limit point can be gradually moved away from the light source along the inner reflective surface. This adjusts the angle between the reflected light formed at the upper reflection limit point and the reflected light formed at the upper reflection limit point, thereby adjusting the beam angle formed by the light rays ultimately projected by the optical component, i.e., changing the light emission angle of the light source. Compared to existing technologies, this method allows for flexible adjustment of the light emission angle by changing the number of lit emitting areas without requiring additional light sources or optical components, achieving convenient adjustment of multiple light emission angles while reducing costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a diagram showing the optical path when a light-emitting area on the light source of a light-emitting mechanism according to an embodiment of the present disclosure is lit. Figure 2 for Figure 1 A top view of the light source component of the light-emitting mechanism shown; Figure 3 for Figure 1 The optical path simulation diagram of the light-emitting mechanism when the light-emitting angle is 15 degrees is shown. Figure 4 for Figure 1 The light spot diagram of the light-emitting mechanism shown is when the light-emitting angle is 15 degrees; Figure 5 for Figure 1 The light distribution curve of the light-emitting mechanism shown is when the light-emitting angle is 15 degrees. Figure 6 for Figure 1 The optical path simulation diagram of the light-emitting mechanism when the light-emitting angle is 24 degrees is shown. Figure 7 for Figure 1 The light spot diagram of the light-emitting mechanism shown is when the light-emitting angle is 24 degrees; Figure 8 for Figure 1The light distribution curve of the light-emitting mechanism shown is when the light-emitting angle is 24 degrees. Figure 9 for Figure 1 The optical path simulation diagram of the light-emitting mechanism when the light-emitting angle is 36 degrees is shown. Figure 10 for Figure 1 The light spot diagram of the light-emitting mechanism shown is when the light-emitting angle is 36 degrees; Figure 11 for Figure 1 The light distribution curve of the light-emitting mechanism shown is when the light-emitting angle is 36 degrees. Figure 12 This is a cross-sectional view of a light-emitting mechanism according to another embodiment of this disclosure; Figure 13 This is a schematic diagram of the structure of a light-emitting mechanism according to another embodiment of the present disclosure.

[0017] Figure label: 100. Light source; 110. Second composite light-emitting area; 1110. First composite light-emitting area; 1111. Circular light-emitting area; 1112. First annular light-emitting area; 1120. Second annular light-emitting area; 101. Outgoing light; 102. Refracted light; 103. Reflected light; 104. Outwardly projected light; 111. Boss structure; 112. Light-emitting area; 113. Crown structure; 200, Optical component; 210, Incident surface; 220, Exit surface; 230, Internal reflecting surface; 2310, Upper limit of reflection point; 2320, Lower limit of reflection point; 300, Intelligent Drive; 400. Radiator; 500, Light source fixing plate; 501, Light emission window. Detailed Implementation

[0018] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments: Please see Figure 1 One embodiment of the light-emitting mechanism includes a light source 100 and an optical component 200 positioned accordingly. The light source 100 has at least two light-emitting areas 112. The light from each light-emitting area 112 is sequentially formed into an outgoing light 101, a refracted light 102, and a reflected light 103 by the optical component 200. The refracted light 102 from each light-emitting area 112 collectively forms a reflection band on the inner reflection surface 230 of the optical component 200. The upper limit point 2310 of the reflection band is far from the light source 100. The distance between the lower reflection limit point 2320 of the reflection strip and the light source 100; the reflected light from the upper reflection limit point 2310 intersects the reflected light from the lower reflection limit point 2320 in the positive direction, specifically, the angle between the reflected light from the upper reflection limit point 2310 and the reflected light from the lower reflection limit point 2320 is an acute angle; wherein, as the number of light-emitting areas 112 increases, the upper reflection limit point 2310 of the reflection strip gradually moves away from the light source 100 along the inner reflection surface 230 of the optical element 200.

[0022] It is understandable that, due to the corresponding positions of the light source 100 and the optical component 200, the light from each light-emitting area 112 can be projected onto the optical component 200 to form incident light. After refraction by the optical component 200, the incident light enters the optical component 200 to form refracted light 102. The refracted light 102 from each light-emitting area 112 is projected onto the inner reflecting surface 230 of the optical component 200 to form a reflection band. A lower reflection limit point 2320 is formed on the edge of the reflection band that is closer to the light source 100, while a reflection limit point 2320 is formed on the edge of the reflection band that is farther from the light source 100. A reflection upper limit point 2310 is formed on the edge of the light-emitting area 112. By increasing the number of light-emitting elements in the light-emitting area 112, the reflection upper limit point 2310 can be made to gradually move away from the light source 100 along the inner reflection surface 230. This adjusts the angle α between the reflected light 103 formed by the reflection of the refracted light 102 through the reflection upper limit point 2310 and the reflected light formed at the reflection upper limit point 2310, thereby correspondingly adjusting the beam angle formed by the light rays finally projected by the reflected light 103 through the optical element 200, i.e., changing the light emission angle of the light source 100. Compared with the prior art, the above-described light emission mechanism can flexibly adjust the light emission angle by changing the number of light-emitting elements in the light-emitting area 112, without requiring additional types of light source 100 or optical element 200. It can achieve convenient adjustment of multiple light emission angles while reducing costs. As the number of light-emitting elements in the light-emitting area 112 increases, the reflection upper limit point 2310 of the reflection zone gradually moves away from the light source 100 along the inner reflection surface 230 of the optical element 200.

[0023] Please see Figure 1 Specifically, the optical element 200 has an incident surface 210 and an exit surface 220 at opposite ends, and an inner reflecting surface 230 is formed on the peripheral wall of the optical element 200. The incident surface 210 is used to refract the outgoing light 101 to obtain refracted light 102, the inner reflecting surface 230 is used to reflect the refracted light 102 to obtain reflected light 103, and the exit surface 220 is used to refract the reflected light 103 to obtain outgoing projected light 104. The incident surface 210, the exit surface 220 and the inner reflecting surface 230 are all freeform surfaces obtained by iterative calculation based on the optical path. The corresponding outgoing light 101, the corresponding refracted light 102, the corresponding reflected light 103 and the corresponding outgoing projected light 104 form an optical path.

[0024] In some embodiments, the light source 100 may be a ring-shaped SMD light source, a ring-shaped COB light source, or a ring-shaped CSP light source. It should be noted that this is only an example and is not intended to limit the scope of this disclosure.

[0025] Please see Figure 1 and Figure 2In some embodiments, each light-emitting area 112 is distributed sequentially from the position corresponding to the center of the optical element 200 to the position corresponding to the edge of the optical element 200. It can be understood that since each light-emitting area 112 is distributed sequentially from the position corresponding to the center of the optical element 200 to the position corresponding to the edge of the optical element 200, when the light-emitting areas 112 are lit sequentially from the position corresponding to the center of the optical element 200 to the position corresponding to the edge of the optical element 200, that is, the number of lit light-emitting areas 112 increases, and the lit light-emitting areas 112 form a joint light-emitting area. The area of ​​the joint light-emitting area will increase as the number of lit light-emitting areas 112 increases, so as to adjust the beam angle formed by the light rays finally projected by the reflected light 103 through the optical element 200, that is, the change in the light emission angle of the light source 100.

[0026] In this embodiment, the light-emitting area corresponding to the edge of the optical element 200 surrounds the light-emitting area corresponding to the center of the optical element 200. It can be understood that, since the light-emitting area corresponding to the edge of the optical element 200 surrounds the light-emitting area corresponding to the center of the optical element 200, when the light-emitting area corresponding to the edge of the optical element 200 is lit, its light can be dispersed and distributed circumferentially around the light-emitting area corresponding to the edge of the optical element 200. This allows for more uniform mixing with the light emitted from the light-emitting area corresponding to the center of the optical element 200 after it is lit, thereby making the reflection band formed by the refracted light 102 on the reflective surface expand more uniformly in the circumferential direction, ultimately resulting in a more uniform overall change in the light emission angle of the light-emitting mechanism. The light-emitting area is not limited to a circular or square ring shape; those skilled in the art can make other selections as needed.

[0027] Please see Figure 1 and Figure 2 In some embodiments, the light source 100 has a circular light-emitting area 1111 and a first annular light-emitting area 1112; the circular light-emitting area 1111 is located within the inner ring of the first annular light-emitting area 1112. It can be understood that the light source 100 has two light-emitting areas 112, namely the circular light-emitting area 1111 and the first annular light-emitting area 1112. By placing the circular light-emitting area 1111 within the inner ring of the first annular light-emitting area 1112, when the first annular light-emitting area 1112 is lit, the light distribution around the edge of the circular light-emitting area 1111 is uniform, allowing for uniform mixing with the light emitted by the circular light-emitting area 1111, ultimately resulting in a uniform overall change in the light emission angle of the light-emitting mechanism. Specifically, the circular light-emitting area 1111 and the first annular light-emitting area 1112 are coaxially arranged, and the edge contour of the circular light-emitting area 1111 is adapted to the inner ring contour of the first annular light-emitting area 1112, further improving the mixing uniformity between the light emitted by the circular light-emitting area 1111 and the light emitted by the first annular light-emitting area 1112.

[0028] Please see Figures 1 to 5In some embodiments, at a first preset brightness, the light-emitting mechanism is configured with a first beam angle when the circular light-emitting area 1111 is illuminated. It can be understood that at the first preset brightness, the circular light-emitting area 1111 is illuminated, and the light-emitting mechanism emits light at the first beam angle; that is, the light-emitting angle of the light-emitting mechanism is the first beam angle. In this embodiment, the first preset brightness is the brightness when the brightness percentage of the circular light-emitting area 1111 is 50%, and the first beam angle is 15 degrees. It should be specifically noted that this is merely an example and is not intended to limit the scope of this disclosure.

[0029] Please see Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 In some embodiments, the circular light-emitting area 1111 and the first annular light-emitting area 1112 together form the first composite light-emitting area 1110. At the second preset brightness, the light-emitting mechanism is configured to emit light at the second beam angle when the first composite light-emitting area 1110 is lit. It can be understood that at the second preset brightness, since the circular light-emitting area 1111 and the first annular light-emitting area 1112 together form the first composite light-emitting area 1110, when the first composite light-emitting area 1110 is lit, that is, when the circular light-emitting area 1111 and the first annular light-emitting area 1112 are lit simultaneously, the light-emitting mechanism emits light at the beam angle of the second beam angle; that is, the light-emitting angle of the light-emitting mechanism is the second beam angle. In this embodiment, the second preset brightness is the brightness when the brightness percentage of the first composite light-emitting area 1110 is 50%, and the second beam angle is 24 degrees. It should be specifically noted that this is only an example and is not intended to limit the scope of this disclosure.

[0030] Please see Figure 1 and Figure 2 In some embodiments, the light source 100 further includes a second annular light-emitting area 1120; the first annular light-emitting area 1112 is located within the inner ring of the second annular light-emitting area 1120. It can be understood that the light source 100 has three light-emitting areas 112: a circular light-emitting area 1111, a first annular light-emitting area 1112, and a second annular light-emitting area 1120. The circular light-emitting area 1111 and the first annular light-emitting area 1112 together form a first composite light-emitting area 1110. When the second annular light-emitting area 1120 is lit, the light distribution around the edge of the first composite light-emitting area 1110 is uniform, allowing for uniform mixing with the light emitted from the first composite light-emitting area 1110, ultimately resulting in a uniform overall change in the light emission angle of the light-emitting mechanism. Specifically, the first composite light-emitting area 1110 and the second annular light-emitting area 1120 are coaxially arranged, and the edge contour of the first composite light-emitting area 1110 is adapted to the inner ring contour of the second annular light-emitting area 1120, so as to further improve the mixing uniformity between the light emitted by the first composite light-emitting area 1110 and the second annular light-emitting area 1120.

[0031] Please see Figure 1 , Figure 2 , Figure 9 , Figure 10 and Figure 11 In some embodiments, the circular light-emitting area 1111, the first annular light-emitting area 1112, and the second annular light-emitting area 1120 together constitute the second composite light-emitting area 110. At a third preset brightness, the light-emitting mechanism is configured to emit light at a third beam angle when the second composite light-emitting area 110 is lit. It can be understood that at the third preset brightness, since the circular light-emitting area 1111, the first annular light-emitting area 1112, and the second annular light-emitting area 1120 together constitute the second composite light-emitting area 110, that is, the first composite light-emitting area 1110 and the second annular light-emitting area 1120 together constitute the second composite light-emitting area 110, when the second composite light-emitting area 110 is lit, that is, the circular light-emitting area 1111, the first annular light-emitting area 1112, and the second annular light-emitting area 1120 are lit simultaneously, at which time the light-emitting mechanism emits light at a third beam angle. In this embodiment, the third preset brightness is the brightness when the brightness percentage of the second composite light-emitting region 110 is 50%, and the third beam angle is 36 degrees. It should be noted that this is only an example and is not intended to limit the present disclosure.

[0032] In some embodiments, the refractive index of the optical element 200 is 1.5 to 1.7. It is understood that since the refractive index of the optical element 200 is 1.5 to 1.7, that is, the optical element 200 can be 1.5, 1.6, or 1.7. It should be specifically noted that this is merely an example and not intended to limit the scope of this disclosure. In this embodiment, the optical element 200 is a lens, and the refractive index of the optical element 200 is 1.5896. This lens can refract the light emitted from the light source element 100 to achieve a predetermined beam angle for the externally projected light 104 projected by the predetermined light-emitting mechanism.

[0033] The distribution of each luminescent region 112 includes, but is not limited to, the following: Please see Figure 12 In one embodiment, a crown-shaped structure 113 protrudes from the light source element 100, and each light-emitting area 112 is formed on the surface of the crown-shaped structure 113. It can be understood that, since the crown-shaped structure 113 protrudes from the light source element 100, specifically, a spherical crown-shaped structure or an ellipsoidal crown-shaped structure is formed. In this embodiment, the spherical crown-shaped structure protrudes from the light source element 100, that is, a hemispherical curved surface structure is formed, and each light-emitting area 112 is formed on the surface of the spherical crown-shaped structure, which enables the light from each light-emitting area 112 to be uniformly dispersed towards the optical element 200.

[0034] In another embodiment, a groove-shaped structure is formed recessed on the light source 100, and each light-emitting area 112 is formed on the surface of the groove-shaped structure. It can be understood that since the groove-shaped structure is formed recessed on the light source 100, specifically, the surface of the groove-shaped structure is spherical, and each light-emitting area 112 is formed on the spherical surface of the groove-shaped structure, the light from each light-emitting area 112 can be uniformly distributed overall.

[0035] In other embodiments, a boss structure 111 protrudes from the light source 100, and each light-emitting area 112 is formed on the surface of the boss structure 111. It can be understood that since each light-emitting area 112 is formed on the surface of the boss structure 111 protruding from the light source 100, specifically, the boss structure 111 is a frustum structure, with some light-emitting areas 112 located on the top end face of the frustum structure and other light-emitting areas 112 located on the peripheral wall of the frustum structure. Alternatively, please refer to [reference needed]. Figure 1 In this embodiment, the boss structure 111 is a disk-shaped structure, and each light-emitting area 112 is formed on the top end face of the disk-shaped structure, which enables the light of each light-emitting area 112 to be evenly distributed as a whole.

[0036] In some embodiments, adjacent light-emitting areas 112 form a composite light-emitting area, and the light-emitting mechanism is configured to a composite beam angle when the composite light-emitting area is lit. Each light-emitting area 112 is configured to emit light with varying brightness to increase or decrease the composite beam angle. It can be understood that since adjacent light-emitting areas 112 form a composite light-emitting area, i.e., two or more adjacent light-emitting areas 112 form a composite light-emitting area, the light source 100 emits light with a composite beam angle, i.e., the light-emitting angle of the light-emitting mechanism is the composite beam angle. Since each light-emitting area 112 is configured to emit light with varying brightness, the composite beam angle can be flexibly adjusted by adjusting the brightness of the corresponding light-emitting areas 112 within the composite light-emitting area.

[0037] Please see Figure 1 and Figure 13 In some embodiments, the light-emitting mechanism further includes a smart driver 300, which can be electrically connected to each light-emitting area 112 via a separate line. It is understood that because the smart driver 300 is electrically connected to each light-emitting area 112 via a separate line, the brightness of each light-emitting area 112 can be controlled individually by the smart driver 300 to flexibly adjust the composite beam angle. Specifically, the smart driver 300 is a variable resistor, capable of changing the voltage of each line to adjust the brightness of each light-emitting area 112, and even to turn it on or off.

[0038] Please see Figure 2In this embodiment, the light source 100 is divided into a circular light-emitting area 1111, a first annular light-emitting area 1112, and a second annular light-emitting area 1120. When only the circular light-emitting area 1111 is lit, the light emission angle of the light-emitting mechanism is 15D. When only the circular light-emitting area 1111 and the first annular light-emitting area 1112 are lit simultaneously, the light emission angle of the light-emitting mechanism is 24D. When all three areas are lit together, the light emission angle is 36D. Furthermore, when it is necessary to adjust the light emission angle of the light-emitting mechanism to an intermediate angle between 15D and 24D, the circular light-emitting area 1111 and the first annular light-emitting area 1112 can be lit simultaneously. Then, the brightness of the circular light-emitting area 1111 can be increased and the brightness of the first annular light-emitting area 1112 can be decreased by the intelligent driver 300, thereby adjusting the light emission angle of the light-emitting mechanism to an intermediate angle between 15D and 24D.

[0039] In some embodiments, the light-emitting mechanism applies the law of conservation of light propagation: A constant. Where n is the refractive index of the medium, A is the area of ​​the luminescent surface, and Ω is the solid angle of emission. It can be understood that the luminescent area A is inversely proportional to the solid angle of emission Ω: the larger the luminescent surface, the smaller the divergence angle (solid angle of emission); conversely, the smaller the luminescent surface, the larger the divergence angle.

[0040] In some embodiments, the optical element 200 is a Lambertian LED light source. It can be understood that a Lambertian LED light source can be derived from the law of conservation of light yield: Where, θ min To find the minimum angle, where Dsource is the diameter of the light source and Doptics is the diameter of the optical component, θ is solved using an inverse function. min (Minimum angle). For ease of understanding, the following are merely examples. When the optical component size is 40mm and the light source diameter is set to 4mm, θmin can be calculated as 10° using the above formula. By controlling the light flux ratio of each section through diffraction structure mixing and circuitry, a beam angle of 15D can be achieved. When the optical component size is 40mm and the light source diameter is set to 8mm, θmin can be calculated as 20° using the above formula. By controlling the light flux ratio of each section through diffraction structure mixing and circuitry, a beam angle of 24D can be achieved. When the optical component size is 40mm and the light source diameter is set to 12mm, θmin can be calculated as 30° using the above formula. By controlling the light flux ratio of each section through diffraction structure mixing and circuitry, a beam angle of 36D can be achieved.

[0041] Please see Figure 13In some embodiments, the light-emitting mechanism further includes a heat sink 400, on which the light source 100 is mounted. It is understood that since the light source 100 is mounted on the heat sink 400, the heat generated by the light source 100 during operation can be diffused to the outside through the heat sink 400.

[0042] Please see Figure 13 Furthermore, the light-emitting mechanism also includes a light source fixing plate 500; the light source fixing plate 500 is mounted on the heat sink 400 and is connected to the light source component 100; the light source fixing plate 500 has a light-emitting window 501, and each light-emitting area 112 on the light source component 100 is opposite to the optical component 200 through the light-emitting window 501. The optical component 200 is mounted on the light source fixing plate 500 so that a compact connection structure is formed between the optical component 200, the light source fixing plate 500, the light source component 100 and the heat sink 400.

[0043] Please see Figures 1 to 13 This disclosure also provides a lamp, including the light-emitting mechanism of any of the above embodiments. It can be understood that by applying the light-emitting mechanism of this disclosure to a lamp, since the positions of the light source 100 and the optical element 200 correspond, the light from each light-emitting area 112 can be projected onto the optical element 200 to form incident light. After refraction by the optical element 200, the incident light enters the optical element 200 to form refracted light 102. The refracted light 102 from each light-emitting area 112 is projected onto the inner reflecting surface 230 of the optical element 200 to form a reflecting band. A lower reflection limit point 2320 is formed on the edge of the reflecting band closest to the light source 100, while a lower reflection limit point 2320 is formed on the edge of the reflecting band closest to the light source 100. A reflection upper limit point 2310 is formed on the edge far from the light source 100. By increasing the number of light-emitting areas 112, the reflection upper limit point 2310 can be made to gradually move away from the light source 100 along the inner reflection surface 230. This adjusts the angle between the reflected light 103 formed by the refracted light 102 reflected at the reflection upper limit point 2310 and the reflected light 103 formed at the reflection upper limit point 2310, thereby correspondingly adjusting the beam angle formed by the light rays finally projected by the reflected light 103 through the optical element 200, i.e., changing the light emission angle of the light source 100. Compared with the prior art, the light emission angle can be flexibly adjusted by changing the number of light-emitting areas 112, and no additional types of light source 100 or optical element 200 are required, making it easier to use.

[0044] Compared with the prior art, this disclosure has at least the following advantages: In the aforementioned light-emitting mechanism, due to the corresponding positions of the light source 100 and the optical element 200, the light from each light-emitting area 112 can be projected onto the optical element 200 to form incident light. After refraction by the optical element 200, the incident light enters the optical element 200 to form refracted light 102. The refracted light 102 from each light-emitting area 112 is projected onto the inner reflecting surface 230 of the optical element 200 to form a reflection band. A lower reflection limit point 2320 is formed on the edge of the reflection band closest to the light source 100, while a reflection limit point 2320 is formed on the edge of the reflection band closest to the light source 100. A reflection upper limit point 2310 is formed on the far edge. By increasing the number of light-emitting areas 112, the reflection upper limit point 2310 can be made to gradually move away from the light source 100 along the inner reflection surface 230. This adjusts the angle α between the reflected light 103 formed by the reflection of the refracted light 102 through the reflection upper limit point 2310 and the reflected light formed at the reflection upper limit point 2310, thereby correspondingly adjusting the beam angle formed by the light rays finally projected by the reflected light 103 through the optical element 200, i.e., changing the light emission angle of the light source 100. Compared with the prior art, the light emission angle can be flexibly adjusted by changing the number of light-emitting areas 112 without adding additional types of light source 100 or optical element 200, achieving convenient adjustment of multiple light emission angles while reducing costs.

[0045] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A light-emitting mechanism, comprising a light source component and optical components corresponding to different positions; Its features are, The light source has at least two light-emitting areas. The light from each light-emitting area is sequentially formed into emitted light, refracted light, and reflected light by the optical element. The refracted light from each light-emitting area forms a reflection band on the inner reflection surface of the optical element. The distance between the upper limit point of the reflection band and the light source is greater than the distance between the lower limit point of the reflection band and the light source. The reflected light from the upper limit of the reflection point intersects the reflected light from the lower limit of the reflection point in the positive direction; As the number of light-emitting areas increases, the upper reflection point of the reflective strip gradually moves away from the light source along the inner reflection surface of the optical element.

2. The light-emitting mechanism according to claim 1, characterized in that, Each of the light-emitting areas is distributed sequentially from the position corresponding to the center of the optical element to the position corresponding to the edge of the optical element.

3. The light-emitting mechanism according to claim 1, characterized in that, The light source has a circular light-emitting area and a first annular light-emitting area; the circular light-emitting area is located within the inner ring of the first annular light-emitting area.

4. The light-emitting mechanism according to claim 3, characterized in that, At a first preset brightness, the light-emitting mechanism is configured to set a first beam angle when the circular light-emitting area is illuminated; or, The circular light-emitting area and the first annular light-emitting area together form the first composite light-emitting area. At the second preset brightness, the light-emitting mechanism is configured as the second beam angle when the first composite light-emitting area is lit.

5. The light-emitting mechanism according to claim 3, characterized in that, The light source also has a second annular light-emitting area; the first annular light-emitting area is located within the inner ring of the second annular light-emitting area.

6. The light-emitting mechanism according to claim 5, characterized in that, The circular light-emitting area, the first annular light-emitting area, and the second annular light-emitting area together form the second composite light-emitting area. At the third preset brightness, the light-emitting mechanism is configured to be the third beam angle when the second composite light-emitting area is lit.

7. The light-emitting mechanism according to claim 1, characterized in that, The refractive index of the optical element is 1.5 to 1.

7.

8. The light-emitting mechanism according to claim 1, characterized in that, The light source component protrudes to form a crown-like structure, and each of the light-emitting areas is formed on the surface of the crown-like structure; or... The light source element has a recessed groove structure, and each of the light-emitting areas is formed on the surface of the groove structure; or... The light source has a protruding boss structure, and each of the light-emitting areas is formed on the surface of the boss structure.

9. The light-emitting mechanism according to claim 1, characterized in that, The adjacent light-emitting areas form a composite light-emitting area, and the light-emitting mechanism is configured to be a composite beam angle when the composite light-emitting area is lit; each of the light-emitting areas is configured to emit light with varying brightness so that the composite beam angle increases or decreases.

10. A lamp, characterized in that, Includes the light-emitting mechanism as described in any one of claims 1 to 9.

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