Light-emitting module, lamp and uniform light emitting method with excellent light spots

Abstract

The invention discloses a light emitting module, a lamp and a uniform light emitting method with excellent light spots, and relates to the technical field of lamps. The light-emitting module comprises a substrate, a light-emitting assembly, an inner transparent part and an outer transparent part, the light-emitting assembly comprises a plurality of light-emitting elements installed on the substrate, and the light-emitting angle of each light-emitting element is a first angle; a light source cavity is defined by the inner transparent part and the substrate, the size of the light source cavity is smaller than 10000 mm < 3 >, the light-emitting assembly is contained in the light source cavity, the inner transparent part comprises a first light-emitting wall and a first annular side wall annularly arranged in the circumferential direction of the first light-emitting wall, and an included angle is formed between the first annular side wall and the first light-emitting wall. The minimum distance between each part of the first annular side wall and the adjacent light-emitting element is greater than tan (first angle / 2) times of the distance between the first light-emitting wall and the light-emitting element; the outer transparent part and the substrate are enclosed to form an accommodating space, and the inner transparent part is accommodated in the accommodating space. The problems that when an existing lamp meets the requirement that the light source cavity is smaller than 10000 mm < 3 >, light distribution is not uniform, and the light spot effect is poor are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of explosion-proof lamps, and in particular to a light-emitting module, a lamp, and a uniform light-emitting method with excellent light spots. BACKGROUND

[0002] The requirement for a glue-sealed explosion-proof lamp is that the volume of a light source cavity is less than 10000mm 3 When the existing lamp meets the requirement that the volume of the light source cavity is less than 10000mm 3 , there are problems of uneven light distribution and poor light spot effect. SUMMARY

[0003] Therefore, the present application provides a light-emitting module, a lamp, and a uniform light-emitting method with excellent light spots, to solve the problems of uneven light distribution and poor light spot effect of the existing lamp when the volume of the light source cavity is less than 10000mm 3 .

[0004] To solve the above technical problems, the technical solution adopted by the present application is as follows:

[0005] A light-emitting module, comprising:

[0006] a substrate;

[0007] a light-emitting assembly comprising a plurality of light-emitting elements mounted on the substrate, the light-emitting angle of the light-emitting elements being a first angle;

[0008] an inner transparent piece enclosing the substrate to form a light source cavity, the volume of the light source cavity being less than 10000mm 3 , the light-emitting assembly being accommodated in the light source cavity, the inner transparent piece comprising a first light-emitting wall and a first annular side wall arranged circumferentially around the first light-emitting wall, the first annular side wall being arranged at an included angle with the first light-emitting wall, and the distance between the first annular side wall at each position and the light-emitting element adjacent thereto being greater than tan(first angle / 2) times the distance between the first light-emitting wall and the light-emitting element;

[0009] and an outer transparent piece enclosing the substrate to form an accommodation space, the inner transparent piece being accommodated in the accommodation space.

[0010] In some embodiments of the light-emitting module, the light-emitting elements have a light-emitting surface facing the inner transparent piece, and the extension direction of the first light-emitting wall is parallel to the light-emitting surface.

[0011] In some embodiments of the light-emitting module, the distance between the first light-emitting wall and the light-emitting surface is 0.5mm-2mm.

[0012] In some embodiments of the light-emitting module, the number of the light-emitting elements is multiple, and each of the light-emitting elements is arranged linearly at equal intervals, in a matrix, or in a circumferential array; and the shape of the inner transparent member matches the arrangement shape of the light-emitting elements.

[0013] In some embodiments of the light-emitting module, the number of the light-emitting assemblies and the number of the inner transparent members are both multiple, each of the inner transparent members corresponds to each of the light-emitting assemblies, and each of the inner transparent members is located in the accommodation space.

[0014] In some embodiments of the light-emitting module, the outer transparent member comprises a second light-out wall and a second annular side wall arranged circumferentially around the second light-out wall, the second annular side wall is arranged at an angle with the second light-out wall, and the distance between each part of the second annular side wall and the adjacent inner transparent member is greater than tan(first angle / 2) times the distance between the second light-out wall and the inner transparent member.

[0015] In some embodiments of the light-emitting module, the inner transparent members are arranged linearly at equal intervals; and the shape of the outer transparent member matches the arrangement shape of the inner transparent members.

[0016] To solve the above technical problems, the second technical solution adopted by the present application is:

[0017] A lamp comprises a plurality of light-emitting modules as described in the above embodiments, and each of the light-emitting modules is arranged at intervals along a first direction.

[0018] To solve the above technical problems, the third technical solution adopted by the present application is:

[0019] A uniform light-emitting method with excellent light spot comprises the following steps:

[0020] Arranging light-emitting elements on a substrate;

[0021] Setting a first height of the inner transparent member, and subtracting the thickness of the light-emitting element from the first height to obtain a first difference, the first difference being in the range of 0.5mm-2mm;

[0022] According to the light-emitting angle of the light-emitting element and the first difference, calculating the minimum distance between the light-emitting element and the annular side wall of the inner transparent member, which is greater than tan(light-emitting angle / 2) times the distance between the inner transparent member and the light-emitting element.

[0023] In some embodiments of the uniform light-emitting method with excellent light spot, the method further comprises the following steps:

[0024] Setting a second height of the outer transparent member, and subtracting the first height from the second height to obtain a second difference;

[0025] The minimum distance between the annular inner wall of the inner transparent piece and the annular side wall of the outer transparent piece is calculated according to the light-emitting angle of the light-emitting element and the second difference value, and the minimum distance is greater than tan(light-emitting angle / 2) times of the distance between the inner transparent piece and the outer transparent piece.

[0026] The embodiments of the present application have at least the following beneficial effects:

[0027] The light-emitting module is applied to a lamp, and the light-emitting module and the lamp have the counting effect of uniform light emission and excellent light spot effect. Specifically, the inner transparent piece is structurally designed. The minimum distance between each part of the first annular side wall of the inner transparent piece and the light-emitting element is greater than tan(first angle / 2) times of the distance between the first light-emitting wall and the light-emitting element. In this way, the light emitted by the light-emitting element does not pass through the first annular side wall, and thus is not blocked by the first annular side wall or excessively refracted by the transition section between the first annular side wall and the first light-emitting wall. Compared with the prior art, the light-emitting module has the effect of uniform light emission and excellent light spot, thereby solving the problem of uneven light distribution and poor light spot effect of the prior art lamp when the light source cavity is less than 10000mm 3 .

[0028] The method for excellent light spot and uniform light emission reduces the first height of the inner transparent piece, that is, the height of the first light-emitting wall in the foregoing embodiment, and adjusts the distance between the annular side wall of the inner transparent piece, that is, the first annular side wall in the foregoing embodiment, and the light-emitting element. In this way, the light emitted by the light-emitting element is not blocked by the annular side wall of the inner transparent piece or excessively refracted by the transition section between the annular side wall of the inner transparent piece and the light-emitting wall. The light spot is excellent and the light is uniformly emitted, thereby solving the problem of uneven light distribution and poor light spot effect of the prior art lamp when the light source cavity is less than 10000mm 3 . BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 It is a structural schematic diagram of the light-emitting module in one embodiment;

[0031] Figure 2 It is a size identification schematic diagram between the inner transparent piece and the light-emitting element in one embodiment;

[0032] Figure 3This is a schematic diagram of the light emission effect of the light-emitting module in one embodiment;

[0033] Figure 4 This is a schematic diagram of a method for achieving uniform light output with excellent light spot quality in one embodiment.

[0034] Wherein: 1. Substrate; 2. Light-emitting element; 21. First angle; 3. Inner transparent part; 31. First light-emitting wall; 32. First annular sidewall; 4. Outer transparent part; 41. Second light-emitting wall; 42. Second annular sidewall. Detailed Implementation

[0035] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0036] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0037] 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 invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] like Figures 1-2 As shown, in one embodiment of a light-emitting module, the light-emitting module includes a substrate 1, a light-emitting component, an inner transparent element 3, and an outer transparent element 4. The light-emitting component includes a plurality of light-emitting elements 2, all mounted on the substrate 1, and the light-emitting angle of the light-emitting elements 2 is a first angle 21. The inner transparent element 3 and the substrate 1 enclose a light source cavity, the volume of which is less than 10000 mm². 3 The light-emitting component is housed within the light source cavity. The inner transparent component 3 includes a first light-emitting wall 31 and a first annular sidewall 32 circumferentially arranged along the first light-emitting wall 31. The first annular sidewall 32 is set at an angle to the first light-emitting wall 31. The minimum distance between each point of the first annular sidewall 32 and the adjacent light-emitting element 2 is greater than tan(the first angle 21 / 2) times the distance between the first light-emitting wall 31 and the light-emitting element 2. The outer transparent component 4 and the substrate 1 enclose a housing space, and the inner transparent component 3 is housed within the housing space.

[0039] In the embodiment, the minimum distance between each part of the first annular side wall 32 of the inner transparent piece 3 and the light emitting element 2 is greater than tan(first angle 21 / 2) times the distance between the first light emitting wall 31 and the light emitting element 2, so that the light emitted by the light emitting element 2 does not pass through the first annular side wall 32, and thus is not blocked by the first annular side wall 32 or excessively refracted by the transition section of the first annular side wall 32 and the first light emitting wall 31. Compared with the prior art, the light emitting is uniform and the light spot is excellent, thereby solving the problems of non-uniform light distribution and poor light spot effect of the prior art when the light source cavity is less than 10000mm 3

[0040] It should be noted that the transition section between the first annular side wall 32 and the first light emitting wall 31 can be in the form of a circular arc, etc., and the transition section belongs to a part of the first annular side wall 32, i.e., the transition section also satisfies the size relationship mentioned in the above embodiment.

[0041] In addition, specifically, the light emitting angle of the light emitting element 2 is generally 120°, and thus the minimum distance between each part of the first annular side wall 32 of the inner transparent piece 3 and the light emitting element 2 is greater than tan60° times the distance between the first light emitting wall 31 and the light emitting element 2.

[0042] In an embodiment of the light emitting module, the light emitting element 2 has a light emitting surface facing the inner transparent piece 3, and the extension direction of the first light emitting wall 31 is parallel to the light emitting surface.

[0043] In the embodiment, specifically, the first light emitting wall 31 can be in a flat plate structure. By setting the first light emitting wall 31 in a flat plate structure, the structure is simple and conducive to manufacturing, and meanwhile, the light emitting path is not greatly changed, and the complexity of the light path is reduced.

[0044] In an embodiment of the light emitting module, the distance between the first light emitting wall 31 and the light emitting surface is 0.5mm-2mm.

[0045] In the embodiment, the distance between the first light emitting wall 31 and the light emitting surface in the prior art is generally about 5mm. In the embodiment, the distance between the first light emitting wall 31 and the light emitting surface is reduced, i.e., the height of the inner transparent piece 3 is changed, and is much smaller than the prior distance, so that the uniformity of the light and the light spot effect are further improved.

[0046] In an embodiment of the light emitting module, the number of the light emitting elements 2 is multiple, and each light emitting element 2 is linearly and equally spaced, arranged in a matrix, or arranged in a circumferential array. The shape of the inner transparent piece 3 matches the arrangement shape of the light emitting elements 2.

[0047] ​In the embodiment, by arranging multiple light emitting elements 2, better light intensity and light effect can be achieved. The light emitting elements 2 can be arranged in various ways, such as linear array with equal intervals, matrix, circular array, etc. Correspondingly, the inner transparent member 3 can be in the shape of an elongated strip, a rectangle, a circle, etc. to better match the light emitting elements 2. It is emphasized that the first annular side wall 32 of the inner transparent member 3 in various shapes needs to satisfy the spacing relationship with the light emitting elements 2.

[0048] In an embodiment of the light emitting module, the number of light emitting assemblies and inner transparent members 3 is multiple. Each inner transparent member 3 is correspondingly arranged on each light emitting assembly, and each inner transparent member 3 is located in the accommodation space.

[0049] In the embodiment, one light emitting assembly can include a group of light emitting elements 2. By arranging multiple light emitting assemblies and multiple inner transparent members 3, the light intensity and light effect of the overall light emitting module can be further improved. The outer transparent member 4 is shared by the multiple light emitting assemblies, which is conducive to sealing into an overall structure to meet different use requirements. In addition, since the light does not exit from the first annular side wall 32 in the previous embodiment, the light exiting from the adjacent two inner transparent members 3 will not overlap and conflict with each other. Referring to the simulated light spot effect shown in Figure 3 The simulated light spot has no obvious bright and dark lines. At this time, the efficiency of the combination of the inner transparent member 3 and the outer transparent member 4 can reach 85.5%.

[0050] In an embodiment of the light emitting module, the outer transparent member 4 includes a second light exit wall 41 and a second annular side wall 42 arranged along the circumference of the second light exit wall 41. The second annular side wall 42 is arranged at an angle with the second light exit wall 41. The minimum distance between the second annular side wall 42 and the adjacent inner transparent member 3 is greater than tan(first angle 21 / 2) times the distance between the second light exit wall 41 and the inner transparent member 3.

[0051] In the embodiment, similar to the previous embodiment, by designing the outer transparent member 4 in a similar way to the inner transparent member 3, the light exiting from the inner transparent member 3 can be prevented from passing through the second annular side wall 42, so as not to be blocked by the second annular side wall 42 or excessively refracted by the transition section of the second annular side wall 42 and the second light exit wall 41, further improving the light spot and uniform light exit effect.

[0052] In combination with the previous embodiment, in a specific embodiment, referring to the simulated light spot effect shown in Figure 2As shown, the distance between the first light-out wall 31 of the inner transparent piece 3 and the light-emitting element 2 is 0.8 mm, and at this time, the distance between the first annular side wall 32 and the light-emitting element 2 needs to satisfy greater than 0.8 mm x tan60° ≈ 1.39 mm, and the distance between the second light-out wall 41 of the outer transparent piece 4 and the inner transparent piece 3 is 12.2 mm, and at this time, the distance between the second annular side wall 42 and the inner transparent piece 3 needs to satisfy 12.2 mm x tan60° ≈ 21.13 mm.

[0053] In addition, the shape of the outer transparent piece 4 can be various structures, for example, the second light-out wall 41 can be an arc shape, the second annular side wall 42 can be an inclined rectangular bucket shape, and the two are circularly arc transitioned.

[0054] In an embodiment of the light-emitting module, the inner transparent pieces 3 are linearly and equally spaced.

[0055] In this embodiment, specifically, the extension direction of the inner transparent piece 3 can be the X direction, the plurality of inner transparent pieces 3 can be equally spaced along the Y direction, the X direction and the Y direction are perpendicular, and the outer transparent piece 4 can be a long strip-shaped frame or cover structure.

[0056] The present application also relates to a lamp comprising a plurality of the light-emitting modules in the above embodiments, and each light-emitting module is spaced along a first direction.

[0057] In this embodiment, by applying the light-emitting module in the above embodiment, the lamp can uniformly emit light and have excellent light spots, and by arranging a plurality of light-emitting modules, one light-emitting module can be 30 W, and the combination of a plurality of modules further meets the requirements of illumination intensity and illumination brightness, and by arranging a light-emitting module with small power, a single modular product is formed, and the applicability is expanded.

[0058] The present application also relates to a method for uniformly emitting light with excellent light spots, comprising the following steps:

[0059] Arranging the light-emitting element 2 on the substrate 1.

[0060] Setting the first height of the inner transparent piece 3, and obtaining a first difference value by subtracting the thickness of the light-emitting element 2 from the first height, and the range of the first difference value is 0.5 mm-2 mm.

[0061] According to the light-emitting angle of the light-emitting element 2 and the first difference value, calculating the minimum distance between the light-emitting element 2 and the annular side wall of the inner transparent piece 3, and the minimum distance is greater than tan(light-emitting angle / 2) times the distance between the inner transparent piece 3 and the light-emitting element 2.

[0062] In the embodiment, by reducing the first height of the inner transparent piece 3, i.e. the height of the first light emitting wall 31 in the previous embodiment, and adjusting the distance between the annular side wall of the inner transparent piece 3, i.e. the first annular side wall 32 in the previous embodiment, and the light emitting element 2, the light emitted by the light emitting element 2 will not be blocked by the annular side wall of the inner transparent piece 3 or excessively refracted by the transition section between the annular side wall and the light emitting wall of the inner transparent piece 3, so that the light spot is excellent and the light is uniformly emitted.

[0063] In an embodiment of the method for uniformly emitting light with excellent light spot, the following steps are further included:

[0064] The second height of the outer transparent piece 4 is set, and the second difference is obtained by subtracting the first height from the second height.

[0065] The minimum distance between the annular inner wall of the inner transparent piece 3 and the annular side wall of the outer transparent piece 4 is calculated according to the light emitting angle of the light emitting element 2 and the second difference, and the minimum distance is greater than tan(light emitting angle / 2) times the distance between the inner transparent piece 3 and the outer transparent piece 4.

[0066] In the embodiment, further, the structural size of the outer transparent piece 4 is adjusted, and by such setting, the light emitted by the inner transparent piece 3 towards the outer transparent piece 4 will not be blocked by the annular side wall of the outer transparent piece 4, i.e. the second annular side wall 42, or excessively refracted by the transition section between the annular side wall and the light emitting wall of the outer transparent piece 4, i.e. the second annular side wall 42 and the second light emitting wall 41, thereby further improving the light spot and the uniform light emitting effect.

[0067] Embodiment one

[0068] S110, the light emitting element 2 is arranged on the substrate 1, and the light emitting angle of the light emitting element 2 is 120°.

[0069] S120, the first height of the inner transparent piece 3 is set, and the first difference is obtained by subtracting the thickness of the light emitting element 2 from the first height, and the first difference is 0.5 mm.

[0070] S130, the minimum distance between the light emitting element 2 and the annular side wall of the inner transparent piece 3 is calculated according to the light emitting angle of the light emitting element 2 and the first difference, and the minimum distance is greater than tan60° times the distance between the inner transparent piece 3 and the light emitting element 2, i.e. 0.87 mm.

[0071] S140, the second height of the outer transparent piece 4 is set, and the second difference is obtained by subtracting the first height from the second height, and the second difference is 12 mm.

[0072] S150, the minimum distance between the annular inner wall of the inner transparent piece 3 and the annular side wall of the outer transparent piece 4 is calculated according to the light emitting angle of the light emitting element 2 and the second difference, and the minimum distance is greater than tan60° times the distance between the inner transparent piece 3 and the outer transparent piece 4, i.e. 20.78 mm.

[0073] Embodiment Two

[0074] S210, arranging the light emitting element 2 on the substrate 1, the light emitting angle of the light emitting element 2 being 120°.

[0075] S220, setting the first height of the inner transparent piece 3, and subtracting the thickness of the light emitting element 2 from the first height to obtain a first difference, the first difference being 0.8mm.

[0076] S230, calculating the minimum distance between the light emitting element 2 and the annular side wall of the inner transparent piece 3 according to the light emitting angle of the light emitting element 2 and the first difference, the minimum distance being greater than tan60° times the distance between the inner transparent piece 3 and the light emitting element 2, i.e. 1.39mm.

[0077] S240, setting the second height of the outer transparent piece 4, and subtracting the first height from the second height to obtain a second difference, the second difference being 12.2mm.

[0078] S250, calculating the minimum distance between the annular inner wall of the inner transparent piece 3 and the annular side wall of the outer transparent piece 4 according to the light emitting angle of the light emitting element 2 and the second difference, the minimum distance being greater than tan60° times the distance between the inner transparent piece 3 and the outer transparent piece 4, i.e. 21.13mm.

[0079] Embodiment Three

[0080] S310, arranging the light emitting element 2 on the substrate 1, the light emitting angle of the light emitting element 2 being 120°.

[0081] S320, setting the first height of the inner transparent piece 3, and subtracting the thickness of the light emitting element 2 from the first height to obtain a first difference, the first difference being 2mm.

[0082] S330, calculating the minimum distance between the light emitting element 2 and the annular side wall of the inner transparent piece 3 according to the light emitting angle of the light emitting element 2 and the first difference, the minimum distance being greater than tan60° times the distance between the inner transparent piece 3 and the light emitting element 2, i.e. 3.46mm.

[0083] S340, setting the second height of the outer transparent piece 4, and subtracting the first height from the second height to obtain a second difference, the second difference being 12.5mm.

[0084] S350, calculating the minimum distance between the annular inner wall of the inner transparent piece 3 and the annular side wall of the outer transparent piece 4 according to the light emitting angle of the light emitting element 2 and the second difference, the minimum distance being greater than tan60° times the distance between the inner transparent piece 3 and the outer transparent piece 4, i.e. 21.65mm.

[0085] The efficiency of the combination of the inner transparent member 3 and the outer transparent member 4 in Embodiment One to Embodiment Three can reach 83%-90%, the simulated light spot has no obvious bright lines and dark lines, and better light spot effect and uniform light output effect are achieved.

[0086] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as the scope of the description.

[0087] The above embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it should not be understood as a limitation on the patent application scope. It should be pointed out that, for ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A light emitting module, characterized in that The light-emitting module comprises: a substrate; a light-emitting assembly comprising a plurality of light-emitting elements mounted on the substrate, the light-emitting elements having a first light-emitting angle; An inner transparent piece, which forms a light source cavity with the substrate, the volume of the light source cavity is less than 10000mm 3 The light emitting assembly is accommodated in the light source cavity, the inner transparent piece comprises a first light emitting wall and a first annular side wall arranged along the circumference of the first light emitting wall, the first annular side wall is arranged at an angle with the first light emitting wall, and the minimum distance between the first annular side wall at each position and the light emitting element is greater than tan(first angle / 2) times the distance between the first light emitting wall and the light emitting element. and an outer transparent member enclosing a receiving space with the substrate, the inner transparent member being received in the receiving space.

2. The light emitting module of claim 1, wherein, The light-emitting elements have a light-emitting surface facing the inner transparent member, and the extension direction of the first light-emitting wall is parallel to the light-emitting surface.

3. The light emitting module of claim 1, wherein the light emitting module is configured to be mounted on a printed circuit board. The distance between the first light-emitting wall and the light-emitting surface is 0.5-2 mm.

4. The light emitting module of claim 1, wherein, The number of light-emitting elements is a plurality, and each of the light-emitting elements is linearly and equally spaced, arranged in a matrix, or arranged in a circumferential array; the shape of the inner transparent member matches the arrangement shape of the light-emitting elements.

5. The light emitting module of claim 1, wherein the light emitting module is configured to be mounted on a printed circuit board. The number of light-emitting assemblies and the number of inner transparent members are both a plurality, each of the inner transparent members is correspondingly arranged on each of the light-emitting assemblies, and each of the inner transparent members is located in the receiving space.

6. The light emitting module of claim 5, wherein the light emitting module is configured to be mounted on a printed circuit board. The outer transparent member comprises a second light-emitting wall and a second annular side wall arranged circumferentially around the second light-emitting wall, the second annular side wall is arranged at an angle with the second light-emitting wall, and the minimum distance between the second annular side wall at each location and the adjacent inner transparent member is greater than tan(first angle / 2) times the distance between the second light-emitting wall and the inner transparent member.

7. The light emitting module of claim 5, wherein the light emitting module is configured to be mounted on a printed circuit board. Each of the inner transparent members is linearly and equally spaced; the shape of the outer transparent member matches the arrangement shape of the inner transparent members.

8. A luminaire characterized by, A plurality of light-emitting modules as claimed in claims 1-7 are arranged along a first direction.

9. A method for uniformly emitting light with excellent spot, characterized by, The method comprises the following steps: arranging light-emitting elements on a substrate; setting a first height of the inner transparent member, and subtracting the thickness of the light-emitting elements from the first height to obtain a first difference, the first difference being 0.5-2 mm; calculating the minimum distance between the light-emitting elements and the annular side wall of the inner transparent member according to the light-emitting angle of the light-emitting elements and the first difference, the minimum distance being greater than tan(light-emitting angle / 2) times the distance between the inner transparent member and the light-emitting elements.

10. The method of claim 9, wherein the light source is a light emitting diode. The method further comprises the following steps: setting a second height of the outer transparent member, and subtracting the first height from the second height to obtain a second difference; calculating the minimum distance between the annular inner wall of the inner transparent member and the annular side wall of the outer transparent member according to the light-emitting angle of the light-emitting elements and the second difference, the minimum distance being greater than tan(light-emitting angle / 2) times the distance between the inner transparent member and the outer transparent member.

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