Light source module and lamp

Abstract

The light source module comprises a shell, a lamp panel, a first reflection structure and a second reflection structure, the first reflection structure is arranged in the shell, and the second reflection structure is arranged at the end, away from the lamp panel, of the first reflection structure; the first reflection structure is used for reflecting part of light rays emitted by the lamp panel to penetrate through the light outlet and irradiate to a projection plane in the direction away from the lamp panel, and the second reflection structure is used for reflecting the other part of light rays emitted by the lamp panel to penetrate through the light outlet and irradiate to the projection plane in the direction away from the lamp panel or not penetrate through the light outlet; the light emitted by the lamp panel is emitted out of the light outlet in the direction away from the lamp panel through the first reflection structure and the second reflection structure, so that the illumination areas formed by the light on the projection plane are all located on one side of the lamp panel, and deflection projection illumination is achieved; moreover, the second reflection structure is arranged at one end, far away from the lamp panel, of the first reflection structure and used for eliminating light rays reflected to the projection plane through the light outlet and located on the other side of the lamp panel, so that stray light rays are eliminated, and deflection illumination is further guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lighting lamps, and particularly relates to a light source module and a lamp. BACKGROUND

[0002] The design of the light source module is crucial to achieving efficient, uniform and adjustable lighting effects. Traditional light source modules usually use a single reflection structure or lens system to guide light, thereby achieving a specific lighting effect.

[0003] The prior art lamp usually comprises a lamp panel arranged in a housing, a plurality of lamp beads arranged on the lamp panel to emit light, and a reflector or lens system arranged in the housing to guide the emitted light to be emitted. These reflection structures or lens systems usually only consider reflecting the incident light out of the housing to be irradiated onto a projection plane. However, such a simple optical structure cannot meet the needs of scenarios that require light to be projected, such as screen hanging lamps, table lamps, floor lamps and wall lamps. When only a reflector or lens system is used for light projection, the direction of the finally emitted light is deflected compared to the direction of the light emitted by the lamp panel, and there is much stray light, making it difficult to project light according to the predetermined light emission angle and irradiation range. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies in the related art, the application provides a light source module and a lamp. The light is reflected to a position away from the lamp panel on the projection plane by the first reflection structure and the second reflection structure, thereby achieving light projection. Furthermore, the second reflection structure further ensures the forward projection of the light and eliminates stray light that may be reflected to the rear.

[0005] In a first aspect, the application provides a light source module, comprising:

[0006] a housing, the housing being hollow inside and having a light outlet at one end;

[0007] a lamp panel arranged in the housing, the lamp panel having a plurality of lamp beads arranged thereon to emit light;

[0008] a first reflection structure arranged in the housing and located on a side of the lamp panel away from the light outlet;

[0009] a second reflection structure arranged at an end of the first reflection structure away from the lamp panel;

[0010] The first reflection structure is configured to reflect part of the light emitted by the lamp panel to a projection plane through the light exit opening in a direction away from the lamp panel, and the second reflection structure is configured to reflect another part of the light emitted by the lamp panel to the projection plane through the light exit opening in a direction away from the lamp panel or not through the light exit opening.

[0011] In some embodiments, the first reflection structure comprises:

[0012] a low beam section extending from the lamp panel in a direction away from the light exit opening;

[0013] a high beam section connected to the low beam section at one end and extending in a direction away from the lamp panel and close to the light exit opening at the other end;

[0014] The low beam section is configured to reflect part of the light emitted by the lamp panel to a first position on the projection plane through the light exit opening, and the high beam section is configured to reflect another part of the light emitted by the lamp panel to a second position on the projection plane through the light exit opening, the first position being farther away from the lamp panel than the second position on the projection plane.

[0015] In some embodiments, the extension trajectory of the first reflection structure approximates a partial curve of an ellipse, the lamp bead is arranged at any one of the focal points of the ellipse, the low beam section is close to the major axis of the ellipse, and the high beam section is close to the minor axis of the ellipse.

[0016] In some embodiments, the angle between the light reflected by the first reflection structure and the perpendicular line of the plane where the light exit opening is located is an acute angle.

[0017] In some embodiments, the ratio of the minor axis to the major axis of the ellipse ranges from 1 / 2 to 1, and the angle between the line connecting the focal point of the ellipse to either end point of the minor axis and the major axis ranges from 36° to 40°.

[0018] In some embodiments, the ratio of the minor axis to the major axis of the ellipse ranges from 1 / 4 to 1 / 3, and the angle between the line connecting the focal point of the ellipse to either end point of the minor axis and the major axis ranges from 6° to 70°.

[0019] In some embodiments, the lamp panel is inclined in a direction away from the light exit opening, and the angle between the lamp panel and the plane where the light exit opening is located is not an acute angle.

[0020] In some embodiments, the angle between the lamp panel and the plane where the light exit opening is located ranges from 90° to 150°.

[0021] In some embodiments, the angle between the lamp panel and the plane where the light outlet is located ranges from 125° to 130°.

[0022] In some embodiments, the second reflection structure comprises a plurality of first reflection surfaces and second reflection surfaces, the first reflection surfaces and the second reflection surfaces are arranged in an interval and connected head to tail, part of the light reflected by the first reflection surfaces passes through the light outlet and irradiates onto the projection plane, and another part of the light is blocked by the second reflection surfaces so as not to pass through the light outlet.

[0023] In some embodiments, the angle between the first reflection surface and the plane where the light outlet is located is a first angle, the angle between the tangent of the high beam segment and the plane where the light outlet is located is a second angle, and the first angle is not greater than the second angle.

[0024] In some embodiments, the angle between the first reflection surface and the second reflection surface ranges from 20° to 90°.

[0025] In some embodiments, the light source module further comprises:

[0026] A light outlet sheet is arranged at the light outlet;

[0027] The light outlet sheet is provided with the light mixing structure towards the inside of the shell or the outside of the shell, and the light mixing structure is used for processing all the light entering or exiting the light outlet sheet.

[0028] In some embodiments, the light mixing structure is a texture, a microlens array or a light diffusion film arranged on the light outlet sheet.

[0029] In some embodiments, the shell further comprises a light mixing sheet between the light outlet and the lamp panel, and the light mixing sheet covers at least the light path of the light directly entering the light outlet from the lamp panel.

[0030] In some embodiments, the light mixing sheet has a texture, a microlens array or a light diffusion film.

[0031] In a second aspect, the application further provides another light source module, comprising:

[0032] A shell, which is hollow inside and has a light outlet at one end;

[0033] A lamp panel, which is arranged in the shell, and a plurality of lamp beads are arranged on the lamp panel to emit light;

[0034] a first reflection structure, one end of the first reflection structure being connected to the lamp panel, the other end extending away from the lamp panel and gradually approaching the light outlet, the first reflection structure being curved away from the light outlet, the first reflection structure reflecting part of the light emitted by the lamp panel through the light outlet;

[0035] a second reflection structure, the second reflection structure being connected to the first reflection structure and one end of the light outlet away from the lamp panel respectively, one side of the second reflection structure facing the lamp panel being bent to form at least two reflection surfaces, the second reflection structure reflecting another part of the light emitted by the lamp panel through the light outlet or not through the light outlet.

[0036] In some embodiments, the first reflection structure comprises:

[0037] a low beam section, one end of the low beam section being connected to the lamp panel, the other end extending away from the lamp panel and gradually approaching the light outlet to form a first curvature;

[0038] a high beam section, one end of the high beam section being connected to the low beam section, the other end extending away from the lamp panel and gradually approaching the light outlet to form a second curvature, the first curvature having a greater curvature amplitude than the second curvature.

[0039] In some embodiments, the second reflection structure comprises a plurality of first reflection surfaces and second reflection surfaces, the first reflection surfaces and the second reflection surfaces being arranged at intervals and connected head to tail to form a sawtooth surface.

[0040] In some embodiments, the first reflection surfaces face the light outlet to reflect the light emitted by the lamp panel to the light outlet or the second reflection surfaces based on a first light path, the second reflection surfaces are away from the light outlet to reflect the light reflected by the first reflection surfaces away from the light outlet based on a second light path.

[0041] In some embodiments, the light source module further comprises:

[0042] a light outlet sheet, the light outlet sheet being arranged at the light outlet;

[0043] the light outlet sheet being provided with the light mixing structure towards an inner side of the shell or an outer side of the shell, the light mixing structure being used for processing all the light entering or exiting the light outlet sheet.

[0044] In some embodiments, the shell further comprises a light mixing sheet, the light mixing sheet being located between the light outlet and the lamp panel and covering at least the light path of the light directly emitted by the lamp panel into the light outlet.

[0045] In some embodiments, the lamp panel is tilted away from the light outlet, and the angle between the lamp panel and the plane containing the light outlet is a non-acute angle.

[0046] Thirdly, this application also provides a lamp, wherein the lamp is provided with a light source module as described in any of the above claims.

[0047] This application provides a light source module and a lamp fixture. A first reflection structure and a second reflection structure respectively direct the light emitted from the lamp panel towards a light outlet in a direction away from the lamp panel, thereby ensuring that the illumination area formed by the light on the projection plane is located on one side of the lamp panel, thus achieving biased projection lighting. Furthermore, the second reflection structure, located at the end of the first reflection structure away from the lamp panel, eliminates light reflected through the light outlet to the other side of the lamp panel on the projection plane, thereby eliminating stray light and further ensuring biased lighting. The low beam segment, closer to the lamp panel, reflects the light to a position farther from the light outlet, while the high beam segment, farther from the lamp panel, reflects the light... By directing the light closer to the light outlet, the illumination at close range becomes softer and more uniform, while at greater distances it becomes clearer and brighter, achieving uniform light coverage. This solves the technical problem of excessively bright or dark areas on the projection plane caused by the light becoming stronger closer to the light panel and weaker further away, thus improving user visual comfort. By setting the angle between the light panel and the plane containing the light outlet to a non-acute angle, the angle of the emitted light is adjusted to prevent the emitted light from directly passing through the light outlet and stimulating the user's eyes, thereby reducing glare. The light mixing structure and mixing sheet improve the color uniformity of the emitted light and reduce the overall blue light hazard value of the luminaire.

[0048] Other features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0049] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0050] Figure 1 This is a perspective view of the lighting fixture in this application;

[0051] Figure 2 For this application Figure 1 Schematic diagram of section aa;

[0052] Figure 3 This is a schematic diagram showing the positional relationship between the low beam section, high beam section, and lamp panel of the light source module in this application.

[0053] Figure 4 The first analysis diagram of the extension track of the first reflection structure of the light source module of the present application;

[0054] Figure 5 The reflection light path schematic diagram of the low beam section and the high beam section of the light source module of the present application;

[0055] Figure 6 The second analysis diagram of the extension track of the first reflection structure of the light source module of the present application;

[0056] Figure 7 The analysis diagram of the lamp plate inclination angle of the light source module of the present application;

[0057] Figure 8 The reflection light path schematic diagram of the first reflection surface and the second reflection surface of the light source module of the present application;

[0058] Figure 9 The partial enlarged schematic diagram of A in the light source module of the present application; Figure 8

[0059] Figure 10 The light path schematic diagram of the light source module of the present application provided with the light mixing sheet and the lamp plate inclined;

[0060] Figure 11 The light path schematic diagram of the light source module of the present application provided with the light mixing sheet and the lamp plate vertical;

[0061] Figure 12 The light path schematic diagram of the light source module of the present application provided with the light mixing structure.

[0062] In the figure:

[0063] 100, housing; 101, light outlet; 200, lamp plate; 300, lamp bead; 400, first reflection structure; 401, low beam section; 402, high beam section; 500, second reflection structure; 501, first reflection surface; 502, second reflection surface; 600, light mixing sheet; 700, light mixing structure; 800, light mixing sheet. DETAILED DESCRIPTION

[0064] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0065] ​In the description of the application, it needs to be understood that the terms "center", "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0066] The terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include one or more of the features.

[0067] In the description of the application, it needs to be explained that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0068] Reference is made to the drawings accompanying Figures 1 to 12 , Figure 1 is a perspective view of the lamp of the application; Figure 2 is a schematic view of the a-a section of the application Figure 1 ; Figure 3 is a schematic view of the position relationship of the low beam section, the high beam section and the lamp panel of the light source module of the application; Figure 4 is a first analysis diagram of the extension track of the first reflection structure of the light source module of the application; Figure 5 is a schematic view of the reflection light path of the low beam section and the high beam section of the light source module of the application; Figure 6 is a second analysis diagram of the extension track of the first reflection structure of the light source module of the application; Figure 7 is an analysis diagram of the inclination angle of the lamp panel of the light source module of the application; Figure 8 is a schematic view of the reflection light path of the first reflection surface and the second reflection surface of the light source module of the application; Figure 9 is a partial enlarged schematic view of A in the application Figure 8 ; Figure 10 is a schematic view of the light path of the light source module of the application with the mixed light sheet and the inclined lamp panel; Figure 11 is a schematic view of the light path of the light source module of the application with the mixed light sheet and the vertical lamp panel; Figure 12 is a schematic view of the light path of the light source module of the application with the mixed light structure; the following Figures 1 to 12Embodiments are described. Embodiment one

[0070] With reference to the accompanying drawings Figures 1 to 3 The application provides a light source module, comprising a housing 100, a lamp plate 200, a first reflection structure 400 and a second reflection structure 500. The housing 100 is hollow inside and has a light outlet 101 at one end. The lamp plate 200 is arranged in the housing 100. A plurality of lamp beads 300 are arranged on the lamp plate 200 to emit light. The first reflection structure 400 is arranged in the housing 100 and is located on the side of the lamp plate 200 away from the light outlet 101. The second reflection structure 500 is arranged at the end of the first reflection structure 400 away from the lamp plate 200.

[0071] The first reflection structure 400 is used to reflect part of the light emitted by the lamp plate 200 to a projection plane in a direction away from the lamp plate 200 through the light outlet 101. The second reflection structure 500 is used to reflect another part of the light emitted by the lamp plate 200 to the projection plane in a direction away from the lamp plate 200 through the light outlet 101 or not through the light outlet 101.

[0072] Part of the light emitted by the lamp plate 200 is reflected by the first reflection structure 400 and then irradiated to a projection plane in a direction away from the lamp plate 200 through the light outlet 101. Another part of the light is reflected by the second reflection structure 500 and then irradiated to the projection plane in a direction away from the lamp plate 200 through the light outlet 101 or not through the light outlet 101. The light reflected by the second reflection structure 500 and then irradiated to the projection plane in a direction away from the lamp plate 200 through the light outlet 101. Thus, the light emitted by the lamp plate 200 is reflected by the first reflection structure 400 or the second reflection structure 500 and then irradiated to the side of the projection plane away from the lamp plate 200, achieving the deviation of the light projection.

[0073] Specifically, the housing 100 is the external structure of the light source module, and its main function is to protect the internal components and provide a processing space to ensure the effective management and projection of light.

[0074] The housing 100 is hollow inside and has a light outlet 101 at one end. The light outlet 101 is used to allow the processed light to be emitted from the inside of the housing 100.

[0075] The housing 100 is made of metal (such as aluminum alloy, iron alloy, etc.) or plastic material. The metal material can provide better heat dissipation performance.

[0076] The lamp plate 200 is a PCB board. The lamp plate 200 is arranged in the housing 100. The lamp plate 200 is electrically connected to the power supply. The lamp plate 200 is used to provide support for the lamp beads 300. A plurality of lamp beads 300 are arranged on the lamp plate 200 to emit light.

[0077] The lamp beads 300 include, but are not limited to, LED lamp beads 300 or other types of light sources, and the lamp beads 300 are selected according to application requirements.

[0078] The arrangement of the lamp beads 300 on the lamp panel 200 includes, but is not limited to, a matrix, a ring, or other arrangements, to achieve a specific lighting effect.

[0079] Optionally, the back of the lamp panel 200 is designed with a heat dissipation structure such as a fin or a heat pipe, to ensure that the heat generated by the lamp beads 300 during work can be dissipated in time, prolonging the service life of the light source module.

[0080] The projection plane is used to receive light emitted from the light outlet 101, and the size of the projection plane is set according to actual conditions. The projection plane includes, but is not limited to, a desktop, a wall, a floor, a book surface, and other surfaces that need to be illuminated by a light source.

[0081] The first reflection structure 400 is used to directly affect the reflection and projection of light, so that the light reflected by the first reflection structure 400 is illuminated on the projection plane in a direction away from the lamp panel 200. The first reflection structure 400 is located on the side of the lamp panel 200 away from the light outlet 101.

[0082] Referring to the accompanying drawings Figures 3 to 5 The first reflection structure 400 further includes a low beam section 401 and a high beam section 402. The low beam section 401 is closer to the lamp panel 200 than the high beam section 402. Part of the light emitted from the lamp panel 200 is reflected by the low beam section 401 and then passes through the light outlet 101 to illuminate a first position on the projection plane. Another part of the light is reflected by the high beam section 402 and then passes through the light outlet 101 to illuminate a second position on the projection plane. The first position is farther from the lamp panel 200 than the second position on the projection plane.

[0083] The light reflected by the low beam section 401 and the high beam section 402 is all illuminated on the projection plane in a direction away from the lamp panel 200, but the illumination positions of the low beam section 401 and the high beam section 402 on the projection plane are different.

[0084] Specifically, the low beam section 401 is closer to the lamp panel 200, so it can capture a relatively direct and concentrated part of the light emitted from the lamp panel 200. After being reflected by the low beam section 401, these light rays are directed to a position on the projection plane that is relatively far from the lamp panel 200, i.e., the first position.

[0085] The low beam section 401 is used to form a clear and bright illumination area at a position far from the light outlet 101, and is particularly suitable for scenes that need to emphasize details or recognize at a distance.

[0086] The high beam section 402 is used to receive the light rays initially emitted on the lamp panel 200, and after reflection of the high beam section 402, the light rays are guided to a position relatively close to the light outlet 101 on the projection plane, i.e., the second position.

[0087] The high beam section 402 is used to illuminate more gently and uniformly at a position relatively close to the light outlet 101, avoiding the problem of glare or shadow caused by too concentrated light, and improving the visual comfort of the user.

[0088] Through the segmented design of the low beam section 401 and the high beam section 402 in the first reflection structure 400, the problem of the emitted light rays becoming weaker and weaker in the direction away from the lamp panel 200 is solved, thereby causing the illumination light rays on the projection plane to be non-uniform. In addition, the low beam section 401 and the high beam section 402 also make the uniform illumination area formed by the emitted light rays away from the lamp panel 200, realize the biasing of the projection lighting, and improve the effective utilization rate of the illumination area.

[0089] It should be noted that being farther or closer to the lamp panel 200 means that the projection on the projection plane is farther or closer to the lamp panel 200 in the plane where the projection plane is located.

[0090] Through the synergistic effect of the low beam section 401 and the high beam section 402, the clear illumination at a long distance and the soft illumination at a short distance are combined to form a completely covered illumination effect with good uniformity on the projection plane, and the illumination area on the projection plane is away from the lamp panel 200, thereby improving the effective utilization rate of the illumination area.

[0091] It should be noted that the size, shape, and position of the low beam section 401 and the high beam section 402 should be adjusted according to actual needs to meet the lighting needs in different scenes.

[0092] Reference is made to the accompanying drawings Figure 3 With Figure 4 In some embodiments, the low beam section 401 extends from the lamp panel 200 in a direction away from the lamp panel 200 and away from the light outlet 101; the high beam section 402 is connected to the low beam section 401, and an end of the high beam section 402 away from the low beam section 401 extends in a direction away from the lamp panel 200 and close to the light outlet 101.

[0093] Specifically, the low beam section 401 is a part of the first reflection structure 400 and is located between the lamp panel 200 and the high beam section 402. The low beam section 401 is closer to the lamp panel 200 than the high beam section 402. The low beam section 401 is used to reflect the relatively direct and concentrated part of the light rays emitted from the lamp panel 200 to the first position on the projection plane. 。

[0094] One end of the low beam section 401 is connected with the lamp panel 200, and the other end extends away from the lamp panel 200 and the light outlet 101, forming a reflection surface gradually away from the lamp panel 200 and the light outlet 101.

[0095] The high beam section 402 is another part of the first reflection structure 400, located at the end of the low beam section 401 away from the lamp panel 200. The high beam section 402 is farther away from the lamp panel 200 than the low beam section 401. The high beam section 402 is used to reflect the light emitted by the lamp panel 200 to the second position of the projection plane.

[0096] When the light source module is applied to a screen hanging lamp, the bearing plane of the screen, such as a desktop, serves as the projection plane. The first position of the projection plane is on the desktop on the side of the lamp panel 200 away from the screen and relatively far from the lamp panel 200. The second position of the projection plane is on the desktop on the side of the lamp panel 200 away from the screen and relatively close to the lamp panel 200. In this way, the light emitted by the lamp panel is ultimately irradiated onto the desktop on the side of the screen, without being reflected onto the screen. In the illumination area of the projection plane, the light intensity is uniform.

[0097] When the light source module is applied to a floor lamp, the ground serves as the projection plane. The first position of the projection plane is on the ground on the side of the lamp panel 200 facing the user or the area to be illuminated and relatively far from the lamp panel 200. The second position of the projection plane is on the ground on the side of the lamp panel 200 facing the user or the area to be illuminated and relatively close to the lamp panel 200. In this way, the light emitted by the lamp panel is ultimately irradiated onto the ground on the side facing the user or the area to be illuminated. Even if the floor lamp is placed against a wall, the light efficiency of the side of the user or the area to be illuminated is still guaranteed, and uniform light intensity is provided.

[0098] In this way, the low beam section 401 irradiates the more concentrated light emitted by the lamp panel 200 to a farther position, and the high beam section 402 irradiates the light emitted by the lamp panel 200 to a nearer position, so that the far and near positions on the final projection plane receive uniform light, and the irradiation area on the projection plane is away from the lamp panel 200, improving the effective utilization rate of the illumination area.

[0099] One end of the high beam section 402 is connected with the end of the low beam section 401 away from the lamp panel 200, and the other end extends away from the lamp panel 200 and close to the light outlet 101, forming a reflection surface gradually away from the lamp panel 200 and close to the light outlet 101. Through the reflection surface, the irradiation area on the projection plane is away from the lamp panel 200, improving the effective utilization rate of the illumination area.

[0100] The materials for manufacturing the low beam section 401 and the high beam section 402 include, but are not limited to, high-reflectivity materials such as mirror aluminum, silver-coated materials, or special coatings, to improve the reflection efficiency of light.

[0101] Reference is made to the accompanying drawings Figure 8 With Figure 9 In some embodiments, the second reflection structure 500 is arranged at the end of the first reflection structure 400 away from the lamp panel 200; part of the light emitted from the lamp panel 200 is reflected by the second reflection structure 500 and does not pass through the light outlet 101, and another part of the light passes through the light outlet 101 and extends in a direction gradually away from the lamp panel 200 and is irradiated onto the projection plane.

[0102] Specifically, the second reflection structure 500 is arranged at the end of the first reflection structure 400 away from the lamp panel 200, the second reflection structure 500 is located between the first reflection structure 400 and the light outlet 101, and the two ends of the second reflection structure 500 are connected with the first reflection structure 400 and the light outlet 101 respectively; part of the light emitted from the lamp panel 200 is reflected by the first reflection structure 400, another part of the light is reflected by the second reflection structure 500, and still part of the light is directly emitted out of the light outlet 101 without any reflection.

[0103] However, since the position of the second reflection structure 500 is between the first reflection structure 400 and the light outlet 101, if the position still adopts the first reflection structure 400, the light emitted from the lamp panel 200 will be reflected to pass through the light outlet 101 and irradiate in a direction close to the lamp panel 200. Therefore, the second reflection structure 500 is arranged between the end of the first reflection structure 400 away from the lamp panel 200 and the light outlet 101, so as to ensure that the light reflected by the second reflection structure 500 and emitted out of the light outlet 101 is irradiated onto the projection plane in a direction away from the lamp panel 200. It can be understood that the reflection of the light emitted from the lamp panel 200 is mainly completed by the first reflection structure 400, and the role of the second reflection structure 500 is to eliminate stray light so as to further ensure that the light can be deviated to be projected onto the projection plane.

[0104] Reference is made to the accompanying drawings Figure 8 With Figure 9 In some embodiments, the light reflected by the first reflection surface 501 passes through the light outlet 101 to irradiate onto the projection plane based on a first light path; and / or the light reflected by the first reflection surface 501 is blocked by the second reflection surface 502 to deviate from the light outlet 101 based on a second light path.

[0105] Specifically, part of the light reflected by the first reflection surface 501 passes through the light outlet 101 to irradiate onto the projection plane based on the first light path, and the first light path can make the reflected light irradiate onto a preset area in a direction away from the lamp panel 200; when the light-emitting module is arranged in a screen hanging lamp, the bearing plane of the screen serves as the projection plane, and the preset area is an area on the projection plane away from the screen side of the lamp panel 200.

[0106] Another part of the light reflected by the first reflective surface 501 is blocked by the second reflective surface 502, so as to deviate from the light outlet 101 based on the second light path, that is, not to be emitted through the light outlet 101, thereby reducing the light irradiated to the rear side of the lamp panel 200.

[0107] It should be noted that the first light path and the second light path are preset light paths, and the first light path is set for the purpose of irradiating the reflected light to the preset area; and the second light path is set for the purpose of reducing the light irradiated to the rear side of the lamp panel 200.

[0108] However, the first light path and the second light path are not fixed, and based on the setting purposes of the first light path and the second light path, a person skilled in the art should adjust them according to the actual situation.

[0109] It should be noted that when the light source module is arranged above the display screen, the light emitting direction of the lamp panel 200 is away from the display screen, that is, the light emitted on the lamp panel 200 is directed away from the display screen, but part of the light is irradiated to the rear side of the lamp panel 200 after reflection, that is, glare is generated on the display screen, and the second reflection structure 500 can further reduce the light irradiated to the rear side of the lamp panel 200, thereby achieving the purpose of reducing the reflection of the display screen.

[0110] The second reflection structure 500 is also used to reflect part of the light emitted on the lamp panel 200, so as to make it extend to the direction gradually away from the lamp panel 200 and irradiate to the projection plane through the light outlet 101, thereby achieving the purpose of projecting the light to the direction away from the lamp panel 200, and further ensuring the projection of the light.

[0111] Reference is made to the accompanying drawings Figure 8 With Figure 9 In some embodiments, the second reflection structure 500 includes a plurality of first reflective surfaces 501 and second reflective surfaces 502, the first reflective surfaces 501 and the second reflective surfaces 502 are arranged at intervals and connected end to end, part of the light reflected by the first reflective surfaces 501 irradiates to the projection plane in the direction away from the lamp panel 200 through the light outlet 101, and another part of the light is blocked or reflected by the second reflective surfaces 502, so as not to pass through the light outlet 101.

[0112] Specifically, the second reflection structure 500 includes a plurality of first reflective surfaces 501 and second reflective surfaces 502, the first reflective surfaces 501 and the second reflective surfaces 502 are arranged at intervals and connected end to end to form a sawtooth-like structure.

[0113] Based on the setting that the first reflecting surface 501 and the second reflecting surface 502 are adjacent and connected, part of the light emitted on the lamp panel 200 is reflected by the first reflecting surface 501 and then reflected back to the lamp panel 200 by the second reflecting surface 502, so as not to be emitted through the light outlet 101; another part of the light is not reflected by the second reflecting surface 502, so as to be emitted through the light outlet 101 and irradiated on the projection plane in a direction away from the lamp panel 200, so as to eliminate stray light and ensure the effect of biasing the projection lighting.

[0114] In some embodiments, the angle between the first reflecting surface 501 and the plane where the light outlet 101 is located is a first angle, and the angle between the tangent of the far light segment 402 and the plane where the light outlet 101 is located is a second angle, and the first angle is not greater than the second angle.

[0115] Specifically, the far light segment 402 is a curved trajectory, and the far light segment 402 is used for reflecting light when it is regarded as a reflecting surface passing through any tangent of the far light segment 402, and the angle between the tangent and the plane where the light outlet 101 is located is a second angle.

[0116] By setting the angle between the first reflecting surface 501 and the plane where the light outlet 101 is located as a first angle, and making the first angle not greater than the second angle, the reflection angle of the first reflecting surface 501 is greater than or equal to the reflection angle of any tangent of the far light segment 402, so as to reflect the light to the second reflecting surface 502 through the first reflecting surface 501, or reflect the light to a third position on the projection plane, the third position is farther away from the lamp panel 200 than the second position on the projection plane, that is, to eliminate stray light, and to ensure that the light reflected by the second reflecting structure 500 and passing through the light outlet 101 is irradiated in a direction gradually away from the lamp panel 200, so as to achieve the purpose of biasing the projection lighting.

[0117] Reference is made to the accompanying drawings Figure 9 In some embodiments, the angle between the first reflecting surface 501 and the second reflecting surface 502 is in the range of 20° to 90°.

[0118] Specifically, by setting the angle between the first reflecting surface 501 and the second reflecting surface 502 in the range of 20° to 90°, the number of reflected light from the first reflecting surface 501 that can be blocked by the second reflecting surface 502 is adjusted based on different values, and the specific value should be set according to actual needs.

[0119] The smaller the angle between the first reflecting surface 501 and the second reflecting surface 502, the more the number of reflected light that is blocked, and the less the number of light emitted through the light outlet 101.

[0120] The greater the included angle between the first reflecting surface 501 and the second reflecting surface 502, the fewer the number of reflected light rays that are blocked, and the greater the number of light rays that are emitted through the light outlet 101.

[0121] Preferably, the included angle between the first reflecting surface 501 and the second reflecting surface 502 is 55°, which makes the number of light rays emitted through the light outlet 101 moderate, thereby ensuring good illumination when the light is directed, and makes the number of blocked reflected light rays moderate, thereby achieving a good effect of eliminating stray light. Embodiment Two

[0123] Reference is made to the accompanying drawings Figure 3 to the accompanying drawings Figure 6 The application also provides another light source module, which comprises the light source module structure in Embodiment One, and further comprises:

[0124] The first reflecting structure 400 is arranged in the housing 100 and located on the side of the lamp panel 200 away from the light outlet 101. One end of the first reflecting structure 400 is connected to the lamp panel 200, and the other end extends away from the lamp panel 200 and gradually approaches the light outlet 101. The first reflecting structure 400 is curved away from the light outlet 101, and the curvature gradually decreases as it extends away from the lamp panel 200. The light is reflected based on the different positions of the first reflecting structure 400.

[0125] The first reflecting structure 400 has a change in curvature during the extension process, which results in inconsistent reflection angles for incident light. The incident light is reflected to a projection plane based on the different positions of the first reflecting structure 400.

[0126] In some embodiments, the first reflecting structure 400 is curved away from the light outlet 101, and the curvature gradually decreases as it extends away from the lamp panel 200.

[0127] Specifically, the first reflecting structure 400 is curved and recessed to form an arc-shaped reflecting surface away from the light outlet 101, and the curvature gradually decreases as it extends away from the lamp panel 200, i.e., the curvature of the first reflecting structure 400 is greater near the lamp panel 200 than away from the lamp panel 200.

[0128] Reference is made to the accompanying drawings Figures 3 to 5In some embodiments, the first reflective structure 401 comprises a low beam section 401 and a high beam section 402. One end of the low beam section 401 is connected to the light plate 200, and the other end extends away from the light plate 200 and gradually approaches the light outlet 101 to form a first curvature. One end of the high beam section 402 is connected to the low beam section 401, and the other end extends away from the light plate 200 and gradually approaches the light outlet 101 to form a second curvature. The bending amplitude of the first curvature is greater than that of the second curvature.

[0129] Specifically, the low beam section 401 forms a first curvature by extension, and the high beam section 402 forms a second curvature by extension. The bending amplitude of the first curvature is greater than that of the second curvature.

[0130] When the light source module is applied in a screen hanging lamp, the bearing plane of the screen, such as a desktop, serves as a projection plane. The light emitted by the light plate 200 is reflected by the first reflective structure 400 to the projection plane. The illumination area on the projection plane is located on the side of the light plate 200 away from the screen. The position with a greater bending amplitude on the first reflective structure 400, i.e., the low beam section 401, serves as a reflecting surface for reflection and light projection, and the reflection and light projection area is away from the light plate 200. Conversely, the position with a smaller bending amplitude on the first reflective structure 400, i.e., the high beam section 402, serves as a reflecting surface for reflection and light projection, and the reflection and light projection area is close to the light plate 200. Thus, the incident light is processed by the first reflective structure 400 and projected to the direction away from the light plate 200 and uniformly irradiated to a projection plane.

[0131] Reference is made to the accompanying drawings Figures 3 to 5 In some embodiments, part of the light emitted by the light plate 200 is reflected by the low beam section 401 and then passes through the light outlet 101 to irradiate a first position on a projection plane. Another part of the light is reflected by the high beam section 402 and then passes through the light outlet 101 to irradiate a second position on the projection plane. The first position is farther from the light plate 200 than the second position in any plane parallel to the projection plane.

[0132] Reference is made to the accompanying drawings Figure 3 to the accompanying drawings Figure 6 In some embodiments, the extension trajectory of the first reflective structure 400 is approximately a partial curve of an ellipse. The lamp beads 300 are arranged at any focal point of the ellipse. The low beam section 401 is close to the major axis of the ellipse, and the high beam section 402 is close to the minor axis of the ellipse.

[0133] Specifically, the extension trajectory of the first reflective structure 400 is approximately a partial curve of an ellipse. The low beam section 401 is close to the major axis of the ellipse, which means that the low beam section 401 has a greater bending amplitude than the high beam section 402. The low beam section 401 can reflect the light emitted by the light plate 200 to a first position on the projection plane that is farther from the light plate 200.

[0134] The high beam section 402 is close to the short axis of the ellipse, and compared with the low beam section 401, the high beam section 402 has a smaller bending amplitude and a longer extension length, and the light emitted by the lamp panel 200 to the high beam section 402 is reflected to a second position on the projection plane which is relatively close to the lamp panel 200.

[0135] Therefore, by setting the low beam section 401 and the high beam section 402 as above, uniform illumination in the illumination area on the projection plane can be achieved.

[0136] It should be noted that the ellipse satisfies the following optical law: the light emitted from one focus of the ellipse is reflected by the ellipse, and the reflected light intersects at the other focus of the ellipse.

[0137] The ellipse includes two foci, and the lamp bead 300 is arranged at any one of the foci of the ellipse. According to the optical law of the ellipse, the light emitted from the focus is reflected by the ellipse and converges at the other focus of the ellipse.

[0138] Therefore, the low beam section 401 can reflect the light emitted by the same lamp panel 200 to a first position on the projection plane which is farther away from the lamp panel 200 than the second position to which the light is reflected by the high beam section 402, thereby forming a uniform illumination area. Both the low beam section 401 and the high beam section 402 can reflect the light in a direction away from the lamp panel 200 through the light outlet 101 and to the projection plane, thereby achieving deflection of the light.

[0139] Reference is made to the accompanying drawings Figures 4 to 5 In some embodiments, the angle between the reflected light of the first reflection structure 400 and the perpendicular line of the plane on which the light outlet 101 is located is an acute angle.

[0140] Based on the following property of the ellipse:

[0141] The sum of the distances from any point on the ellipse to the two foci is constant.

[0142] According to the above property of the ellipse, a perpendicular line h is drawn based on the plane on which the light outlet 101 is located, and the angle between the perpendicular line h and the reflected light of the first reflection structure 400 is an acute angle β1 or an acute angle β2, that is, the angle is greater than 0° and less than 90°, thereby specifically limiting the extension trajectory of the first reflection structure 400 to approximate an arc segment on the ellipse.

[0143] Specifically, an active reflection point M is arranged on the first reflection structure 400, and the lamp bead 300 is located at the focus F1 of the ellipse. The light emitted by the lamp bead 300 passes through the light path MF1 and then passes through the other focus F2 of the ellipse, wherein the sum of MF1 and MF2 is a constant.

[0144] The active reflection point M includes a reflection point M1 obtained by moving to the end point of the low beam section 401, and an active reflection point M moves to the end point of the high beam section 402 to obtain a reflection point M2. Based on the properties of the above-mentioned ellipse, the following formula can be obtained: M1F1+M1F2=M2F1+M2F2.

[0145] Therefore, the active reflection point M is based on the extension trajectory of the first reflection structure 400, and during the process of moving from the end point of the low beam section 401 to the end point of the high beam section 402, the angle between M1F2 and the vertical line h is an acute angle β2, that is, the position of M1 can be confirmed.

[0146] Alternatively, during the process of moving from the end point of the high beam section 402 to the end point of the low beam section 401, the angle between M2F2 and the vertical line h is an acute angle β1, that is, the position of M2 can be confirmed.

[0147] Based on the above description, M1M2 approximates the extension trajectory of the first reflection structure 400, M1 and M2 are set as the two end points of the first reflection structure 400, and the positions of the two on the ellipse are confirmed, that is, the extension trajectory of the first reflection structure 400 is approximately which arc segment on the ellipse is defined.

[0148] Reference is made to the accompanying drawings Figure 6 In some embodiments, the ratio of the minor axis to the major axis of the ellipse is in the range of 1 / 2 to 1, and the angle between the line connecting the focus of the ellipse to either end point of the minor axis and the major axis is in the range of 36° to 40°.

[0149] Specifically, the ratio of the minor axis to the major axis of the ellipse is set to be in the range of 1 / 2 to 1, and the angle α between the line connecting the focus F1 of the ellipse to either end point of the minor axis and the major axis is in the range of 36° to 40°, so as to indirectly limit the distribution ratio, the bending degree and the size length of the low beam section 401 and the high beam section 402, so that the light path is suitable for the mutual coordination of the low beam section 401 and the high beam section 402, and the technical effect of achieving uniform deflection lighting is achieved.

[0150] Reference is made to the accompanying drawings Figure 6 In other embodiments, the ratio of the minor axis to the major axis of the ellipse is in the range of 1 / 4 to 1 / 3, and the angle between the line connecting the focus of the ellipse to either end point of the minor axis and the major axis is in the range of 6° to 70°.

[0151] Specifically, the ratio of the minor axis to the major axis of the ellipse is set to be in the range of 1 / 4 to 1 / 3, and the angle α between the line connecting the focus F1 of the ellipse to either end point of the minor axis and the major axis is in the range of 6° to 70°, so as to indirectly limit the distribution ratio, the bending degree and the size length of the low beam section 401 and the high beam section 402, so that the light path is suitable for the mutual coordination of the low beam section 401 and the high beam section 402, and the technical effect of achieving uniform deflection lighting is achieved.

[0152] Referring to the drawings Figures 1 to 7 In some embodiments, the lamp plate 200 is inclined away from the light outlet 101, and the angle between the lamp plate 200 and the plane where the light outlet 101 is located is not an acute angle.

[0153] Specifically, the lamp plate 200 is fixed in the shell 100 and located on one side of the light outlet 101, and the lamp plate 200 is inclined relative to the plane where the light outlet 101 is located.

[0154] The angle of inclination of the lamp plate 200 can be regarded as based on the end of the lamp plate 200 close to the light outlet 101 as the turning point, and the other end is turned away from the light outlet 101 to be inclined. The angle θ turned by the lamp plate 200 is the angle between the lamp plate 200 and the plane where the light outlet 101 is located.

[0155] The angle θ between the lamp plate 200 and the plane where the light outlet 101 is located is not an acute angle, so that the light emitted by the lamp plate 200 is reflected by the first reflection structure 400 and then passes through the light outlet 101 to be emitted, so as to avoid the light emitted by the lamp plate 200 directly passing through the light outlet 101 to be emitted, causing irritation to the eyes of the user.

[0156] It should be noted that for the light emitted by the lamp plate 200, the larger the angle, the more the first reflection structure 400 utilizes, so that the more controllable part of the light, the less part directly enters the human eye, but the overall illumination efficiency of the light source module will also be reduced. Therefore, the angle θ between the lamp plate 200 and the plane where the light outlet 101 is located should be pre-set according to the actual situation.

[0157] Referring to the drawings Figure 7 In some embodiments, the angle θ between the lamp plate 200 and the plane where the light outlet 101 is located is in the range of 90° to 150°; further, the angle θ between the lamp plate 200 and the plane where the light outlet 101 is located is in the range of 105° to 150°; further, the angle θ between the lamp plate 200 and the plane where the light outlet 101 is located is in the range of 125° to 130°.

[0158] Referring to the drawings Figure 7 In other embodiments, the angle θ between the lamp plate 200 and the plane where the light outlet 101 is located is in the range of 125° to 130°.

[0159] Specifically, by pre-setting the angle θ between the lamp plate 200 and the plane where the light outlet 101 is located, the angle θ is in the range of 180°-55° to 180°-50°, i.e. 125° to 130°, so as to ensure that part of the light is reflected by the first reflection structure and then emitted through the light outlet, and another part of the light is emitted by the lamp plate and then directly emitted through the light outlet, the light path controllability and the overall illumination efficiency are relatively balanced.

[0160] Reference to the accompanying drawings Figure 7 In some other embodiments, the angle θ between the lamp plate 200 and the plane where the light outlet 101 is located is in the range of 105° to 125°.

[0161] Specifically, the angle θ between the lamp plate 200 and the plane where the light outlet 101 is located is in the range of 105° to 150°.

[0162] Based on the relative balance of the angle θ in the range of 125° to 130°, when the angle θ is further reduced, such as the angle θ in the range of 180°-75° to 180°-55°, i.e. the angle θ in the range of 105° to 125°, the lamp plate is relatively inclined to the side of the light outlet, the light directly emitted from the lamp plate to the light outlet increases, the reflected light part decreases, the controllability of the light path is reduced, but the overall illumination efficiency of the light source module is improved.

[0163] Reference to the accompanying drawings Figure 7 In some other embodiments, the angle θ between the lamp plate 200 and the plane where the light outlet 101 is located is in the range of 130° to 150°.

[0164] Based on the relative balance of the angle θ in the range of 125° to 130°, when the angle θ is further increased, such as the angle θ in the range of 180°-50° to 180°-30°, i.e. the angle θ in the range of 130° to 150°, the lamp plate is relatively inclined to the side away from the light outlet, the light directly emitted from the lamp plate to the light outlet decreases, the reflected light part increases, the controllability of the light path is improved, but the overall illumination efficiency of the light source module is reduced.

[0165] Reference to the accompanying drawings Figure 11 In some other embodiments, the angle θ between the lamp plate 200 and the plane where the light outlet 101 is located is 90°, i.e. the angle θ between the lamp plate 200 and the plane where the light outlet 101 is located is a right angle. Specific embodiment three

[0167] Reference to the accompanying drawings Figure 12 The present application also provides another light source module, which comprises the light source module structure in the above-mentioned specific embodiment one and specific embodiment two, and further comprises:

[0168] The light outlet sheet 600 is arranged at the light outlet 101, and the light outlet sheet 101 is provided with a light mixing structure 700 on the side facing the inside of the shell or on the side facing the outside of the shell, and the light mixing structure 700 is used to process all the light entering or exiting the light outlet sheet 101, so as to improve the color uniformity of the light outlet.

[0169] Specifically, the light-emitting sheet 600 is arranged at the light-emitting opening 101, and the light-emitting sheet 600 is used to make the light more evenly and gently irradiate on the projection plane, reduce the phenomenon of light spot, glare and the like, and improve the lighting quality.

[0170] The light-emitting sheet 600 is also used as a boundary surface between the light source module and the external environment, and can prevent impurities such as dust and water vapor from entering the inside of the shell 100, thereby protecting the lamp panel 200 and the lamp beads 300 from damage.

[0171] The light mixing structure 700 is arranged on the light-emitting sheet 600, and the light mixing structure 700 is arranged on the side of the light-emitting sheet 600 facing the inside of the shell 100 or the outside of the shell 100, and all the light entering or exiting the light-emitting sheet 600 passes through the light mixing structure 700.

[0172] The light mixing structure 700 includes but is not limited to a sunken pattern, a microlens array or a light diffusion film.

[0173] In some embodiments, the light mixing structure 700 is a sunken pattern arranged on the light-emitting sheet 600, and the sunken pattern is a small concave-convex structure formed on the surface of a material by chemical or physical methods; the application of the sunken pattern on the light-emitting sheet 600 can effectively scatter the light and improve the color uniformity.

[0174] The scattering effect of the sunken pattern is also used to reduce the direct transmittance of blue light; the blue light is easy to cause harm to the human eye due to its shorter wavelength and higher energy; through the scattering of the sunken pattern, the energy of the blue light is dispersed to a larger angular range, thereby reducing the blue light intensity per unit area and reducing the harm of the blue light.

[0175] In addition, the microlens array is a structure composed of a plurality of small convex lenses or concave lenses; the microlens array is laid on the light-emitting sheet 600, which can disperse the light in multiple directions and mix with each other, thereby improving the color uniformity.

[0176] The light diffusion film is a transparent film with a microstructure; the light diffusion film is laid on the light-emitting sheet 600 to make the light more evenly distributed on the entire projection plane through the scattering effect. Specific embodiment four

[0178] The application also provides a light source module, which includes the light source module structure in the above-mentioned specific embodiment one and specific embodiment two, and further includes a light mixing sheet 800, the light mixing sheet 800 is located in the shell 100, specifically between the light-emitting opening 101 and the lamp panel 200, and covers at least the light path of the light directly emitted by the lamp panel 200 into the light-emitting opening 101, and the light mixing sheet 800 is used to process the light directly emitted by the lamp panel 200 into the light-emitting opening 101, so as to improve the color uniformity of the light emission.

[0179] Specifically, referring to the accompanying drawings Figure 10 With Figure 11In some embodiments, the light mixing sheet 800 is arranged in the housing 100 between the light emitting sheet 600 and the lamp panel 200, and covers at least the light path of the light directly emitted by the lamp panel 200 into the light emitting opening 101.

[0180] It can be understood that the light mixing sheet 800 can also be arranged at other positions between the light emitting opening 101 and the lamp panel 200 in the housing 100, such as the edge of the side of the light emitting opening 101 facing the lamp panel 200.

[0181] Further, the light mixing sheet has a texture, a microlens array or a light diffusion film for processing the light passing therethrough to improve the color uniformity.

[0182] Reference is made to the accompanying drawings Figure 10 With Figure 11 It should be noted that when the angle between the lamp panel 200 and the plane where the light emitting opening 101 is located is a right angle or an obtuse angle, the light emitted by the lamp beads 300 on the lamp panel 200 all exist in the case of directly entering the light emitting opening 101, in order to make the light directly entering the light emitting opening 101 have high color uniformity, the light mixing sheet 800 needs to completely cover the light path of the light directly entering the light emitting opening 101.

[0183] Based on the longest first connecting line along the edge of the side of the lamp panel 200 farthest from the light emitting opening 101 away from the lamp panel 200 towards the light emitting opening 101, the area below the first connecting line, the light emitted by the lamp panel 200 directly enters the light emitting opening 101 without the first reflecting structure 400 and the second reflecting structure 500 and is projected to the projection plane, therefore, the light path of this part is the light path that the light mixing sheet 800 needs to completely cover, specifically, the first connecting line passes through the light mixing sheet 800, and the area enclosed by the first connecting line and the light emitting opening 101 on the light mixing sheet 800 is the at least covering area of the light mixing sheet 800.

[0184] Optionally, the covering area of the light mixing sheet 800 is uniformly expanded by 1 to 2 times from the above at least covering area outwardly to cover more light paths of the light emitted by the lamp panel 200. Embodiment five

[0186] Reference is made to the accompanying drawings Figures 1 to 12 The application also provides a lamp, which is provided with the light source module of any one of the above embodiments one to four.

[0187] In summary, the application provides a light source module and a lamp, the first reflection structure 400 and the second reflection structure 500 are used to reflect light to a position far away from the lamp panel 200, so that the illumination area formed by the light emitted through the light outlet 101 on the projection plane is far away from the screen, thereby improving the effective utilization rate of the illumination area in front of the screen; and the second reflection structure 500 is also used to reduce the light irradiated to the back side of the lamp panel 200, thereby eliminating stray light and reducing glare on the screen; the near light section 401 closer to the lamp panel 200 is used to reflect light to a position farther away from the light outlet 101, and the far light section 402 farther away from the lamp panel 200 is used to reflect light to a position closer to the light outlet 101, so that the illumination at a close distance is softer and more uniform, and the illumination at a far distance is clearer and brighter, thereby realizing uniform coverage of light, solving the technical problem of local over-brightness or over-darkness on the projection plane caused by the fact that the closer to the lamp panel 200, the stronger the light, and the farther away from the lamp panel 200, the weaker the light, and improving the visual comfort of the user; the angle between the lamp panel 200 and the plane where the light outlet 101 is located is set to be a non-acute angle, so as to adjust the angle of the emitted light and avoid the emitted light directly passing through the light outlet 101 to stimulate the eyes of the user; the light mixing structure 700 and the light mixing sheet 800 are used to improve the color uniformity of the emitted light and reduce the overall blue light hazard value of the lamp.

[0188] Finally, it should be noted that: the embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to.

[0189] The above embodiments are only used to illustrate the technical solutions of the application but not to limit the same; although the application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the specific implementation of the application can be modified or some technical features can be replaced by equivalent replacements; without departing from the spirit of the technical solutions of the application, all of them should be covered in the technical solution range of the application claimed by the application.

Claims

1. A light source module, characterized by The application relates to a light-emitting device, comprising: a housing, which is hollow inside and is provided with a light outlet at one end; a lamp plate, which is arranged in the housing and is provided with a plurality of lamp beads arranged in rows on the lamp plate to emit light; a first reflection structure, which is arranged in the housing and is located on the side of the lamp plate away from the light outlet; a second reflection structure, which is arranged at the end of the first reflection structure away from the lamp plate; the first reflection structure is used for reflecting part of the light emitted by the lamp plate to irradiate on a projection plane in a direction away from the lamp plate through the light outlet, and the second reflection structure is used for reflecting another part of the light emitted by the lamp plate to irradiate on the projection plane in a direction away from the lamp plate through the light outlet or not through the light outlet.

2. The light source module of claim 1, wherein The first reflection structure comprises: a low-beam section, which extends in a direction away from the lamp plate and the light outlet; a high-beam section, one end of which is connected to the low-beam section, and the other end of which extends in a direction away from the lamp plate and close to the light outlet; the low-beam section is used for reflecting part of the light emitted by the lamp plate to irradiate on a first position of the projection plane through the light outlet; and the high-beam section is used for reflecting another part of the light emitted by the lamp plate to irradiate on a second position of the projection plane through the light outlet, the first position being farther away from the lamp plate than the second position on the projection plane.

3. The light source module of claim 2, wherein The extension track of the first reflection structure is similar to part of an ellipse, the lamp beads are arranged at any focus of the ellipse, the low-beam section is close to the major axis of the ellipse, and the high-beam section is close to the minor axis of the ellipse.

4. The light source module of claim 3, wherein The angle between the light reflected by the first reflection structure and the perpendicular line of the plane where the light outlet is located is an acute angle.

5. The light source module of claim 3, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The ratio of the minor axis to the major axis of the ellipse ranges from 1 / 2 to 1, and the angle between the line connecting the focus of the ellipse to any end point of the minor axis and the major axis ranges from 36 degrees to 40 degrees.

6. The light source module of claim 3, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The ratio of the minor axis to the major axis of the ellipse ranges from 1 / 4 to 1 / 3, and the angle between the line connecting the focus of the ellipse to any end point of the minor axis and the major axis ranges from 6 degrees to 70 degrees.

7. The light source module according to any one of claims 1 to 6, characterized in that, The lamp plate is inclined in a direction away from the light outlet, and the angle between the lamp plate and the plane where the light outlet is located is not an acute angle.

8. The light source module of claim 7, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The angle between the lamp plate and the plane where the light outlet is located ranges from 90 degrees to 150 degrees.

9. The light source module of claim 8, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The angle between the lamp plate and the plane where the light outlet is located ranges from 125 degrees to 130 degrees.

10. The light source module of claim 2, wherein, The second reflection structure comprises a plurality of first reflection surfaces and second reflection surfaces, the first reflection surfaces and the second reflection surfaces are arranged in intervals and are connected in a head-to-tail mode, part of the light reflected by the first reflection surfaces irradiates on the projection plane through the light outlet, and another part of the light is shielded by the second reflection surfaces and thus does not pass through the light outlet.

11. The light source module of claim 10, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The angle between the first reflection surfaces and the plane where the light outlet is located is a first angle, the angle between any tangent line of the high-beam section and the plane where the light outlet is located is a second angle, and the first angle is not greater than the second angle.

12. The light source module of claim 10, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. An included angle between the first reflective surface and the second reflective surface ranges from 20° to 90°.

13. The light source module of claim 1, wherein Further comprising: a light-emitting sheet arranged at the light-emitting opening; the light-emitting sheet is provided with a light mixing structure towards the inside of the shell or the outside of the shell, and the light mixing structure is used to process all the light rays entering or exiting the light-emitting sheet.

14. The light source module of claim 13, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The light mixing structure is a texture, a microlens array or a light diffusion film arranged on the light-emitting sheet.

15. The light source module of claim 1, wherein, The shell further comprises a light mixing sheet between the light-emitting opening and the lamp panel, and at least covering the light path of the light rays directly emitted by the lamp panel into the light-emitting opening.

16. The light source module of claim 15, wherein, The light mixing sheet has a texture, a microlens array or a light diffusion film.

17. A light source module, characterized by Comprising: a shell with a hollow interior and a light-emitting opening at one end; a lamp panel arranged in the shell, the lamp panel having a plurality of lamp beads arranged thereon to emit light rays; a first reflective structure connected to the lamp panel at one end and extending away from the lamp panel and gradually approaching the light-emitting opening at the other end, the first reflective structure being curved away from the light-emitting opening, and the first reflective structure reflecting part of the light rays emitted by the lamp panel through the light-emitting opening; a second reflective structure connected to the first reflective structure and the end of the light-emitting opening away from the lamp panel, respectively, the second reflective structure being bent to form at least two reflective surfaces towards the lamp panel, the second reflective structure reflecting another part of the light rays emitted by the lamp panel through the light-emitting opening or not through the light-emitting opening.

18. The light source module of claim 17, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The first reflective structure comprises: a low beam section connected to the lamp panel at one end and extending away from the lamp panel and gradually approaching the light-emitting opening at the other end to form a first curvature; a high beam section connected to the low beam section at one end and extending away from the lamp panel and gradually approaching the light-emitting opening at the other end to form a second curvature, the first curvature having a greater curvature than the second curvature.

19. The light source module of claim 17, wherein the light source module is configured to be mounted on a printed circuit board (PCB) of a display device. The second reflective structure comprises a plurality of first reflective surfaces and second reflective surfaces arranged in intervals and connected end to end to form a sawtooth surface.

20. The light source module of claim 19, wherein, The first reflective surface is towards the light-emitting opening to reflect the light rays emitted by the lamp panel to the light-emitting opening or the second reflective surface based on a first light path, and the second reflective surface is away from the light-emitting opening to reflect the light rays reflected by the first reflective surface away from the light-emitting opening based on a second light path.

21. The light source module of claim 17, wherein the light source module is configured to be mounted on a printed circuit board. Further comprising: a light-emitting sheet arranged at the light-emitting opening; the light-emitting sheet is provided with a light mixing structure towards the inside of the shell or the outside of the shell, and the light mixing structure is used to process all the light rays entering or exiting the light-emitting sheet.

22. The light source module of claim 17, wherein the light source module is configured to be mounted on a printed circuit board. The shell further comprises a light mixing sheet between the light-emitting opening and the lamp panel, and at least covering the light path of the light rays directly emitted by the lamp panel into the light-emitting opening.

23. The light source module of any one of claims 17-22, wherein, The lamp panel is inclined away from the light-emitting opening, and the included angle between the lamp panel and the plane where the light-emitting opening is located is a non-acute angle.

24. A luminaire characterized by The lamp is provided with the light source module of any one of claims 1 to 23.

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