Lens structure, split type light source module, integrated light source module and lamp

Abstract

The utility model provides a lens structure, a split type light source module, an integrated light source module and a lamp, the lens structure comprises a light source condensation surface arranged on a light emitting path of a scattering light source, and light emitted by the scattering light source is refracted by the light source condensation surface and then is gathered towards the central axis direction of the light source condensation surface; light rays gathered by the light source light gathering surface are refracted by the refraction surface to form emergent light rays meeting the illumination and uniformity of target light distribution; light rays which are emitted by the scattering light source and do not meet the target light distribution angle are shielded by the light limiting face. According to the lens structure, the earlier-stage research and development cost is reduced, the assembling and positioning of the lens and the light source are optimized, the light distribution effect is improved, the assembling limitation of the lens and the structure is reduced through the modular design, and the protection performance of the light source is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, in particular to a lens structure, a split light source module, an integrated light source module and a lamp. Background Art

[0002] With the popularization of LED (Light Emitting Diode) technology, the application of LED light sources in different scenarios has been greatly expanded. For the application requirements of different scenarios, it is necessary to correspondingly adjust the light distribution pattern of the LED light source. Affected by the LED packaging technology, most LED light sources belong to Lambertian light sources, and the light distribution angle is approximately around 120 degrees. If the LED light source is directly applied without light distribution design, the illuminance and uniformity in many scenarios will not meet the target expectations.

[0003] Currently, the secondary design of LED light distribution is mainly reflected in the following two aspects: (1) Adding a lens design to the light source package. The lens generally uses silicone or glass materials. For example, in the patent with the publication number CN218333844U, a lens package frame is embedded at the upper end of the ceramic package frame. The disadvantage of this method is that the silicone material has poor protection performance and is easy to be damaged, affecting the LED performance; the glass material has high processing difficulty and high cost; for special light distribution requirements, it is necessary to specially customize the light source package, further increasing the cost. (2) Adding a whole-board optical lens, generally using PC (polycarbonate) material, and obtaining the target light distribution through secondary optical design. For example, in the patent with the publication number CN218763037U, the light source component and the PC optical lens are laminated and then fastened to the front of the radiator. The disadvantage is that the whole-board optical lens has high requirements for assembly. The error in the assembly of the light source, the structure and the lens is likely to cause the light source to deviate from the designed position, affecting the light distribution effect, and generally the size of the whole-board optical lens is large, and the mold research and development cost is high. Summary of the Utility Model

[0004] In view of the above-mentioned disadvantages of the prior art, the technical problem to be solved by the utility model is to provide a lens structure, a split light source module, an integrated light source module and a lamp, so as to solve the problems of high light distribution cost and poor light distribution effect in the prior art.

[0005] To solve the above technical problems, a first aspect of the present utility model provides a lens structure for distributing the light of a scattered light source, including: a light source condensing surface disposed on the light-emitting path of the scattered light source, and the light emitted by the scattered light source is refracted by the light source condensing surface and converges towards the central axis direction of the light source condensing surface; a refractive surface and a light-limiting surface, and the light converged by the light source condensing surface is refracted by the refractive surface to form outgoing light with illuminance and uniformity that meet the target light distribution; the light with an angle that does not meet the target light distribution emitted by the scattered light source is blocked by the light-limiting surface.

[0006] For the above lens structure, through the modular design of the scattered light source, the light source condensing surface, the refractive surface, and the light-shielding surface, the pre-research cost is reduced, and the assembly and positioning of the lens and the light source are optimized, thereby improving the light distribution effect.

[0007] A second aspect of the present utility model provides a split light source module, including: a scattered light source, a condenser cover covering the scattered light source, and a refractive cover covering the outside of the condenser cover; the lens structure as described above, where the light source condensing surface is disposed on the condenser cover, the refractive surface is disposed on the top of the refractive cover, and the light-limiting surface is disposed on the body of the refractive cover; the outgoing light of the scattered light source is refracted and converged by the condenser cover, and a part of the light converged by the condenser cover is refracted by the top of the refractive cover to form outgoing light with illuminance and uniformity that meet the target light distribution, and the other part is blocked by the body of the refractive cover.

[0008] For the above split light source module, the pre-research cost is reduced through the lens structure, and the assembly and positioning of the lens and the light source are optimized, thereby improving the light distribution effect. The modularization of the light source, the refractive cover, and the condenser cover reduces the assembly restrictions of the lens and the light source, and improves the protection performance of the light source through the condenser cover and the refractive cover.

[0009] In some embodiments of the second aspect of the present utility model, the thickness of the top of the refractive cover is uneven.

[0010] The uneven thickness of the top of the refractive cover can change the angle of the light, thereby forming light with illuminance and uniformity that meet the target light distribution.

[0011] In some embodiments of the second aspect of the present utility model, the top surface and the bottom surface of the top of the refractive cover are not parallel.

[0012] In some embodiments of the second aspect of the present utility model, the top of the refractive cover is made of a high-transparency material; when the light converged by the light source condensing surface enters the top of the refractive cover, it undergoes a first refraction, and when it exits from the top of the refractive cover, it undergoes a second refraction.

[0013] After the light passes through two refractions, compared with the angle when the light enters, the outgoing angle of the light will change, thereby forming light with an illuminance and uniformity that meet the target light distribution.

[0014] In some embodiments of the second aspect of the present invention, the scattering light source is an LED light source.

[0015] In some embodiments of the second aspect of the present invention, the material used for the light collecting cover is one of silicone, epoxy resin, and polycarbonate.

[0016] The third aspect of the present invention provides an integrated light source module, including: a scattering light source and a light control cover covering the scattering light source, the light control cover including a cover body and a cover top; the lens structure as described above, the light source light collecting surface is arranged on the bottom surface of the cover top, the refracting surface is arranged on the top surface of the cover top, and the light limiting surface is arranged on the cover body; a part of the outgoing light of the scattering light source is refracted and concentrated after passing through the bottom surface of the cover top, and the light concentrated on the bottom surface of the cover top is refracted through the top surface of the cover top to form outgoing light with an illuminance and uniformity that meet the target light distribution, and the other part is blocked by the cover body.

[0017] The above integrated light source module reduces the early R & D cost through the lens structure, optimizes the assembly and positioning of the lens and the light source, thereby improving the light distribution effect. The modularization of the light source and the light control cover reduces the assembly restrictions of the lens and the light source, and improves the protection performance of the light source through the light control cover.

[0018] In some embodiments of the third aspect of the present invention, the top surface of the cover top is an inclined surface with a preset slope, and the light is deflected when it exits from the inclined surface to meet the illuminance, uniformity, and angle of the target light distribution.

[0019] The fourth aspect of the present invention provides a lighting fixture, including: the split light source module as described above or the integrated light source module as described above.

[0020] As described above, the lens structure, split light source module, integrated light source module, and lighting fixture of the present invention have the following beneficial effects:

[0021] The lens structure of the present invention reduces the early R & D cost, optimizes the assembly and positioning of the lens and the light source, improves the light distribution effect, the modular design reduces the assembly restrictions of the lens and the structure, and improves the protection performance of the light source. Description of the Drawings

[0022] Figure 1 It shows a schematic structural diagram of the split light source module in the embodiment of the present invention.

[0023] Figure 2It shows a schematic diagram of the optical path of the split light source module in the embodiment of the present utility model.

[0024] Figure 3 It shows a schematic diagram of a light condensing cover structure in a specific embodiment of the present utility model.

[0025] Figure 4 It shows a schematic diagram of another light condensing cover structure in a specific embodiment of the present utility model.

[0026] Figure 5 It shows a schematic diagram of the structure of the integrated light source module in the embodiment of the present utility model.

[0027] Description of component numbers

[0028] 1 Scattering light source

[0029] 2 Light condensing cover

[0030] 21 Light source condensing surface

[0031] 3 Refractive cover

[0032] 31 Top of the refractive cover

[0033] 311 Refractive surface

[0034] 311a Top surface of the refractive cover

[0035] 311b Bottom surface of the refractive cover

[0036] 32 Body of the refractive cover

[0037] 321 Light limiting surface

[0038] 4 Scattering light source

[0039] 5 Light control cover

[0040] 51 Top of the cover

[0041] 511 Light source condensing surface

[0042] 512 Refractive surface

[0043] 52 Body of the cover

[0044] 521 Light limiting surface Detailed implementation manners

[0045] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0046] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.

[0047] The present utility model provides a lens structure for distributing the light of a scattered light source, including:

[0048] A light source condensing surface, which is arranged on the light-emitting path of the scattered light source, and the light emitted by the scattered light source is refracted by the light source condensing surface and converges towards the central axis direction of the light source condensing surface;

[0049] A refractive surface and a light-limiting surface. The light converged by the light source condensing surface is refracted by the refractive surface to form outgoing light with illuminance and uniformity that meet the target light distribution; the light with an angle that does not meet the target light distribution emitted by the scattered light source is blocked by the light-limiting surface.

[0050] It should be understood that the illuminance of light refers to the luminous flux received per unit area and is usually used to describe the intensity of illumination. The uniformity of light refers to the degree of uniformity of the light distribution in a certain area. In an ideal situation, uniform light distribution means that the illuminance is the same at any point in this area. The target light distribution is related to the lighting effect to be achieved. Light distribution is an important concept in lighting design, which refers to controlling and adjusting the spatial distribution of light through specific devices or methods to achieve the expected lighting effect. The light distribution can be simulated by software in the prior art to obtain the target light distribution.

[0051] It should be noted that the present utility model does not limit the surface shape of the refractive surface, and the surface shape of the refractive surface is related to the target light distribution. In the field of optics, the surface figure refers to the deviation between the surface shape of an optical element and an ideal geometric shape (such as a plane, a spherical surface, a cylindrical surface, or a specific type of aspherical surface). The accuracy of the surface figure is crucial for the performance of optical elements because it directly affects the wavefront error and imaging quality in an optical system. Additionally, it should be noted that through the modular design of the scattering light source, the light source condensing surface, the refractive surface, and the light-shielding surface, the above lens structure reduces the upfront R & D costs and optimizes the assembly and positioning of the lens and the light source.

[0052] As Figures 1 to 4 shown, it is a schematic structural view of the split light source module of the present utility model.

[0053] The split light source module includes:

[0054] a scattering light source 1, a condenser cover 2 covering the scattering light source, and a refractive cover 3 covering the outside of the condenser cover;

[0055] a lens structure, where the light source condensing surface 21 is arranged on the condenser cover 2, the refractive surface 311 is arranged on the cover top 31 of the refractive cover 3, and the light-limiting surface 321 is arranged on the cover body 32 of the refractive cover 3;

[0056] The outgoing light of the scattering light source 1 is refracted and concentrated after passing through the condenser cover 2. A part of the light concentrated by the condenser cover 2 is refracted by the cover top 31 of the refractive cover 3 to form outgoing light that meets the illuminance and uniformity of the target light distribution, and the other part is blocked by the cover body 32 of the refractive cover 3.

[0057] Specifically, the outgoing light of the scattering light source 1 is refracted by the light source condensing surface 21 on the condenser cover 2 and then concentrated in the direction of the axis of the light source condensing surface 21. Generally, the light of the scattering light source 1 will be concentrated within 100° by the light source condensing surface 21. A part of the light concentrated by the light source condensing surface 21 is refracted by the refractive surface 311 of the cover top 31 of the refractive cover 3 to form outgoing light that meets the illuminance and uniformity of the target light distribution. Another part of the light concentrated by the light source condensing surface 21 is blocked by the light-limiting surface 321 of the cover body 32 of the refractive cover 3. This part of the blocked light is generally light with an angle that does not conform to the target light distribution.

[0058] It should be noted that the application scenario of the split light source module is generally for secondary light distribution of a scattering light source with a built-in condenser cover. Since the scattering light source has a built-in condenser cover, at this time, only one more refractive cover needs to be added.

[0059] In a specific embodiment, by adding a primary optical design lens to the package of the scattering light source, the structure of the condensing cover 2 provided with the light source condensing surface 21 is realized. It should be understood that the primary optical design usually refers to the optical design carried out during the light source packaging process, and its main purpose is to optimize characteristics such as the light output angle, light intensity, luminous flux size, and light intensity distribution. The secondary optical design is realized through the refractive cover. The secondary optical design usually refers to the optical design carried out outside the scattering light source, and is also called the secondary light distribution design. Its main purpose is to optimize the light distribution to meet specific lighting requirements.

[0060] It should be noted that, compared with using a large-sized optical lens for secondary light distribution design, the split light source module reduces the upfront R & D cost, optimizes the assembly and positioning of the lens and the light source, and thus improves the light distribution effect and reduces the assembly restrictions of the lens and the structure through the modular design of the scattering light source, the condensing cover, and the refractive cover, that is, through the modular design of the refractive surface, the light source condensing surface, and the light limiting surface provided thereon. In addition, the protection performance of the light source is improved through the condensing cover and the refractive cover.

[0061] In one embodiment, as Figures 1 to 4 shown, the thickness of the cover top 31 of the refractive cover 3 is uneven.

[0062] In one embodiment, as Figure 1 and Figure 2 shown, the refractive surface 311 on the cover top 31 of the refractive cover 3 includes: the top surface 311a of the cover top 31 and the bottom surface 311b of the cover top 31; wherein, the top surface 311a and the bottom surface 311b are not parallel. It should be understood that since the top surface 311a of the cover top 31 and the bottom surface 311b of the cover top 31 are not parallel, the thickness of the cover top 31 of the refractive cover 3 is uneven.

[0063] It should be understood that according to the law of refraction, when the two surfaces are parallel, the light rays incident on the first surface are parallel to the light rays exiting from the second surface, and thus the angle of the light rays cannot be changed. When the two surfaces are not parallel, the light rays incident on the first surface and the light rays exiting from the second surface are not parallel, and thus the angle of the light rays can be changed.

[0064] In a specific embodiment, as Figure 1 and Figure 2 shown, the top surface 311a is a horizontal plane, and the bottom surface 331b is an inclined plane with a preset slope. It should be noted that those skilled in the art can set the slope of the inclined plane according to the actual requirements of the light distribution, and the present invention does not make any limitations thereto.

[0065] In one embodiment, the scattering light source 1 uses an LED light source. It should be noted that the present invention does not make any limitations on the type of the LED light source, and those skilled in the art can select according to actual requirements.

[0066] In a specific embodiment, the LED light source has a Lambertian 120° light distribution.

[0067] In one embodiment, the top 31 of the refractive cover 3 is made of a high-transparency material; when the light rays concentrated on the light source condensing surface 21 enter the top 31 of the refractive cover 3, a first refraction occurs, and a second refraction occurs when the light rays exit from the top 31 of the refractive cover 3.

[0068] Specifically, as Figure 2 shown, the medium inside the refractive cover (i.e., the inner side of the bottom surface 311a of the top 31 and the outer side of the condenser cover 2) is n1, the medium between the outer side of the bottom surface 311b of the top 31 and the inner side of the top surface 311a of the top 31 is n2, and the medium outside the top surface 311a of the top 31 is n3. The media n1 and n3 are usually air media with a refractive index of approximately 1, and the medium n2 is the medium of the refractive cover 3 material, usually made of materials such as PC (polycarbonate), acrylic, etc. Taking PC as an example, the refractive index of the medium n2 is about 1.585. When the light rays are incident on a certain point on the bottom surface 311b of the top 31, the angle between the normal line perpendicular to the bottom surface 311b of the top 31 passing through this point and the incident light rays is θ1, and the angle with the outgoing light rays is θ2. According to the law of refraction: n1×sinθ1 = n2×sinθ2; where, usually n2>n1, that is, θ1<θ2. The light rays are deflected in direction for the first time when passing through the bottom surface 311b of the top 31, and the light rays leave the refractive part and are deflected for the second time at the top surface 311a of the top 31 (the interface between the media n2 and n3). Similarly following the law of refraction, when the light rays are incident on a certain point on the top surface 311a of the top 31, the angle between the normal line perpendicular to the top surface 311a of the top 31 passing through this point and the incident light rays is θ3, and the angle with the outgoing light rays is θ4. After the light rays are deflected twice, the light rays will deviate from the initial direction (the direction incident on the bottom surface 311b of the top 31) by a certain angle.

[0069] In one embodiment, the high-transparency material includes but is not limited to high-transparency resin, high-transparency encapsulation adhesive film, high-transmittance hot-pressed yttrium oxide transparent ceramic, high-performance ceramic fiber, etc.

[0070] In one embodiment, an opaque material can be applied to the inner surface of the body of the refractive cover to form a light-limiting surface. The whole body of the cover can also be made of an opaque material to form a light-limiting surface. The types of opaque materials include but are not limited to ceramic materials, black polyester films, opaque coatings, etc.

[0071] To better illustrate the split light source module, the following provides two specific embodiments.

[0072] Embodiment 1: A split light source module.

[0073] As Figure 3As shown, the condenser hood 2 is a stretched structure made of silicone material with a refractive index of 1.41. By designing the surface shape of the light source condenser surface, the light distribution angle reaches 32.5°×99.5°. The light limiting surface and the refractive surface are an integrated structure, both of which are provided on the refractive hood 3. The refractive surface is made of polycarbonate material with a refractive index of 1.585, and the light limiting surface is made of an opaque material. By designing the surface shape of the refractive surface and the height of the light limiting surface, the light distribution curve angle reaches 31°×83.5°, with a polarization of 8°. The overall structure of the split light source module in this embodiment is as shown in Figure 3 the left side, and the structures of the components in the split light source module of this embodiment are as shown in Figure 3 the right side.

[0074] It should be understood that the stretched structure generally refers to a structure made by a stretching process. The shapes of the stretched structure include but are not limited to semi-cylindrical, semi-elliptical, etc.

[0075] Embodiment 2: A split light source module.

[0076] As shown in Figure 4 the figure, the condenser hood 2 is a rotationally symmetric structure made of silicone material with a refractive index of 1.41. By designing the surface shape of the light source condenser surface, the light distribution angle reaches 27.5°×27.5°. The light limiting surface and the refractive surface are an integrated structure, both of which are provided on the refractive hood 3. The refractive surface is made of polycarbonate material with a refractive index of 1.585. Since the light distribution angle of the light obtained after passing through the light source condenser surface is small, the light limiting surface has no limiting effect on the light within a certain height. By designing the surface shape of the refractive surface and the height of the light limiting surface, the light distribution curve angle reaches 31.5°×23.5°, with a polarization of 9°. The overall structure of the split light source module in this embodiment is as shown in Figure 4 the left side, and the structures of the components in the split light source module of this embodiment are as shown in Figure 4 the right side.

[0077] It should be understood that the rotationally symmetric structure includes but is not limited to semi-circular, etc.

[0078] As shown in Figure 5 the figure, a schematic structural diagram of the integrated light source module of the present invention is shown.

[0079] The integrated light source module includes:

[0080] a scattering light source 4 and a light control hood 5 covering the scattering light source 4. The light control hood 5 includes a hood body 52 and a hood top 51;

[0081] a lens structure. The light source condenser surface 512 is provided on the bottom surface of the hood top 51, the refractive surface 511 is provided on the top surface of the hood top 51, and the light limiting surface 521 is provided on the hood body 52;

[0082] A part of the emitted light of the scattering light source 4 is refracted by the bottom surface of the dome top 51 and then gathered. The light gathered on the bottom surface of the dome top 51 forms an emitted light that meets the illuminance and uniformity of the target light distribution after being refracted by the top surface of the dome top 51, and the other part is blocked by the dome body 52.

[0083] Specifically, a part of the emitted light of the scattering light source 4 is refracted by the light source condensing surface 512 on the bottom surface of the dome top and then gathers in the axial direction of the light source condensing surface 512. The light gathered by the light source condensing surface 512 forms an emitted light that meets the illuminance and uniformity of the target light distribution after being refracted by the refractive surface 511 on the top surface of the dome top 51. The other part of the emitted light of the scattering light source 4 is blocked by the light limiting surface 521 on the dome body 51. This part of the blocked light is the light with an angle that does not meet the target light distribution.

[0084] It should be noted that the application scenario of the integrated light source module is generally a scattering light source without a light condensing component. At this time, a condensing surface and a refractive surface need to be set for light distribution.

[0085] Another thing to note is that compared with the secondary light distribution design using a large-size optical lens, the integrated light source module reduces the upfront R & D cost, optimizes the assembly and positioning of the lens and the light source, improves the light distribution effect, reduces the assembly limitation of the lens and the structure, and improves the protection performance of the light source through the light control cover through the modular design of the scattering light source and the light control cover, that is, through the modular design of the refractive surface, the light source condensing surface and the light limiting surface set on it.

[0086] In a specific embodiment, as Figure 5 shown, the top surface of the dome top 51 is an inclined surface with a preset slope. When the light exits from the inclined surface, it is deflected to meet the illuminance and uniformity of the target light distribution.

[0087] It should be noted that the slope of the inclined surface is related to the target light distribution.

[0088] It should be understood that since the top surface of the dome top 51 is an inclined surface with a preset slope and the bottom surface of the dome top 51 is generally a curved surface. Therefore, the thickness between the top surface and the bottom surface of the dome top is uneven. According to the law of refraction, the angle of the light entering the top surface of the dome top can change.

[0089] In an embodiment, the scattering light source uses an LED light source. It should be noted that the present invention does not limit the type of the LED light source, and those skilled in the art can select according to actual needs.

[0090] In a specific embodiment, the LED light source has a Lambert 120° light distribution.

[0091] In one embodiment, an opaque material can be applied to the inner surface of the light control cover body to form a light-limiting surface. The entire light control cover body can also be made of an opaque material to form a light-limiting surface. The types of opaque materials include, but are not limited to, ceramic materials, black polyester films, light-blocking coatings, etc.

[0092] In one embodiment, the light source condensing surface and the light-refracting surface can be combined into a light control cover through two-color injection molding.

[0093] The present utility model also provides a lamp, which includes a split light source module or an integrated light source module.

[0094] In summary, the present utility model provides a lens structure, a split light source module, an integrated light source module, and a lamp. The lens structure includes: a light source condensing surface disposed on the light-emitting path of a scattering light source, and the light emitted by the scattering light source is refracted by the light source condensing surface and converges toward the central axis direction of the light source condensing surface; a light-refracting surface and a light-limiting surface. The light converged by the light source condensing surface is refracted by the light-refracting surface to form outgoing light with illuminance and uniformity that meet the target light distribution. The light that does not meet the angle of the target light distribution emitted by the scattering light source is blocked by the light-limiting surface. The lens structure of the present utility model reduces the upfront R & D cost, optimizes the assembly and positioning of the lens and the light source, improves the light distribution effect, the modular design reduces the assembly limitation between the lens and the structure, and enhances the protection performance of the light source. Therefore, the present utility model effectively overcomes various drawbacks in the prior art and has high industrial utilization value.

[0095] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A lens structure for distributing the light of a scattered light source, characterized in that Comprising: A light source condenser surface, which is arranged on the light-emitting path of the scattering light source, and the light emitted by the scattering light source is refracted by the light source condenser surface and then converges towards the central axis direction of the light source condenser surface; A refractive surface and a light-limiting surface, the light converged by the light source condenser surface is refracted by the refractive surface to form outgoing light rays that meet the illuminance and uniformity of the target light distribution; the light rays that do not meet the angle of the target light distribution emitted by the scattering light source are blocked by the light-limiting surface.

2. A split light source module, characterized in that, Comprising: A scattering light source, a condenser cover covering the scattering light source, and a refractive cover covering the outside of the condenser cover; The lens structure according to claim 1, wherein the light source condenser surface is arranged on the condenser cover, the refractive surface is arranged on the top of the refractive cover, and the light-limiting surface is arranged on the body of the refractive cover; The outgoing light rays of the scattering light source are refracted and converged by the condenser cover, and a part of the light converged by the condenser cover is refracted by the top of the refractive cover to form outgoing light rays that meet the illuminance and uniformity of the target light distribution, and the other part is blocked by the body of the refractive cover.

3. The split light source module according to claim 2, wherein, The thickness of the top of the refractive cover is uneven.

4. The split light source module according to claim 3, characterized in that, The top surface and the bottom surface of the top of the refractive cover are not parallel.

5. The split light source module according to claim 2, characterized in that, The top of the refractive cover is made of a high-transparency material; when the light converged by the light source condenser surface enters the top of the refractive cover, it undergoes a first refraction, and when it exits from the top of the refractive cover, it undergoes a second refraction.

6. The split light source module according to claim 2, wherein, The scattering light source is an LED light source.

7. The split light source module according to claim 2, wherein The material of the condenser cover is one of silica gel, epoxy resin, and polycarbonate.

8. An integrated light source module, characterized in that, Comprising: A scattering light source and a light control cover covering the scattering light source, the light control cover includes a body and a top; The lens structure according to claim 1, wherein the light source condenser surface is arranged on the bottom surface of the top, the refractive surface is arranged on the top surface of the top, and the light-limiting surface is arranged on the body; A part of the outgoing light rays of the scattering light source is refracted and converged by the bottom surface of the top, and the light converged by the bottom surface of the top is refracted by the top surface of the top to form outgoing light rays that meet the illuminance and uniformity of the target light distribution, and the other part is blocked by the body.

9. The integrated light source module according to claim 8, wherein The top surface of the top is an inclined surface with a preset slope, and the light is deflected when it exits from the inclined surface to meet the illuminance and uniformity of the target light distribution.

10. A lighting fixture, characterized in that, Comprising: A split light source module according to any one of claims 2 to 7, or an integrated light source module according to any one of claims 8 to 9.

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