Optical module and luminaire

Abstract

The application provides an optical module and a lamp, the optical module comprising a light source assembly and a reflection assembly; the light source assembly comprising a lamp plate and a light emitting element arranged on the lamp plate, and the reflection assembly comprising a first reflection surface and a second reflection surface, the first reflection surface and the second reflection surface being oppositely arranged; the first reflection surface comprising a first end and a second end arranged oppositely, and the second reflection surface comprising a third end and a fourth end arranged oppositely; the first end and the fourth end being arranged away from each other, and the second end and the third end being arranged close to each other; the first end being arranged close to the lamp plate, and a module light outlet being formed between the lamp plate and the fourth end; the first reflection surface being used for reflecting at least part of the light emitted by the light emitting element to the second reflection surface; the second reflection surface being used for deflecting the light emitted directly by the light emitting element to the second reflection surface and the light reflected to the second reflection surface by the first reflection surface to the module light outlet, and at least part of the light being emitted in a direction away from the light emitting element, so that directional light projection is realized, and the overall thickness of the optical module can be significantly reduced.

Description

Technical Field

[0001] This invention belongs to the field of optical technology, and particularly relates to an optical module and a lamp. Background Technology

[0002] In existing lighting fixtures, the orientation of the lamp panel is consistent with the overall light output direction of the optical module. Users can see the light emitted directly from the lamp beads, which can cause glare. Long-term use can easily cause visual fatigue and is not conducive to the health protection of users' eyes. At the same time, in order to expand the lighting range, it is usually necessary to move the light source above or near the lighting area, which results in the light source being too close to the user's eyes and reduces comfort. Summary of the Invention

[0003] In view of this, the present invention provides an optical module and a lamp to solve the problems of glare stimulation and visual fatigue caused by existing lamps to users' eyes.

[0004] This invention provides an optical module, including a light source assembly and a reflection assembly; The light source assembly includes a lamp panel and a light-emitting element disposed on the lamp panel; The reflective component includes a first reflective surface and a second reflective surface, which are opposite to each other and arranged at an angle; the first reflective surface includes a first end and a second end arranged opposite to each other, and the second reflective surface includes a third end and a fourth end arranged opposite to each other; the first end and the fourth end are arranged far apart, and the second end and the third end are arranged close to each other; The first end is disposed near the end of the lamp panel, and a module light outlet is formed between the other end of the lamp panel and the fourth end; The first reflective surface is used to reflect a portion of the light emitted by the light-emitting element to the second reflective surface; the second reflective surface is used to deflect the light emitted directly from the light-emitting element to the second reflective surface and the light reflected from the first reflective surface to the second reflective surface toward the light outlet of the module, and at least a portion of the light is emitted from the light outlet of the module in a direction away from the light-emitting element.

[0005] Further optionally, the light emitted by the light-emitting element that is reflected by the first reflective surface to the second reflective surface and then deflected towards the light output port of the module is the first light ray L1, and the light emitted by the light-emitting element that is directly deflected by the second reflective surface towards the light output port of the module is the second light ray L2. The first light ray L1, after being emitted from the light output port of the module, illuminates at least a portion of the far-end region outside the light output port of the module; the second light ray L2, after being emitted from the light output port of the module, illuminates at least a portion of the near-end region outside the light output port of the module.

[0006] Further optionally, the lamp panel extends along a first direction; the first reflective surface and the second reflective surface are disposed opposite each other in a plane perpendicular to the first direction; The longitudinal extension directions of the first reflective surface and the second reflective surface are both parallel to the first direction. The lateral extension direction of the first reflective surface is the extension direction from the first end to the second end, and the lateral extension direction of the second reflective surface is the extension direction from the third end to the fourth end.

[0007] Further optionally, in a plane perpendicular to the first direction, the line connecting the first end and the second end is L. AB The line connecting the third end and the fourth end is L. CD The connecting line L AB The angle between the line L and the plane containing the light panel is α, and the line L is L. CD The angle between L and the plane containing the light output port of the module is β. AB and the L CD The included angle is θ, where θ is the angle between the connecting lines L and L. CD With the line L AB The angle between them facing the light output port of the module; The L CD and the L AB The length of L satisfies the following relationship: CD >L AB ; The α, β and θ satisfy the following relationships: α>β, 90°<θ<180°.

[0008] Further optionally, α, β and θ satisfy: 35°≤α≤55°, 9°≤β≤29°, 105°≤θ≤125°.

[0009] Further optionally, the L CD The projected length of the plane containing the light output port of the module is L. cd The L AB The projected length L of the plane where the lamp panel is located ab The L cd With the L ab The ratio satisfies: 3≤L cd / L ab ≤4.

[0010] Further optionally, in a plane perpendicular to the first direction, the overall thickness of the optical module is h, and the overall width of the optical module is b; h and b satisfy: 2:4≤h:b≤2:7.

[0011] Further optionally, the first reflective surface is a plane or a curved surface that is concave in the direction away from the light source assembly, and the second reflective surface is a plane or a curved surface that is concave in the direction away from the light source assembly.

[0012] Further optionally, the first reflective surface is a concave curved surface in the direction away from the light source assembly, and the radius of curvature of the first reflective surface from the first end to the second end is R1, wherein R1 satisfies: 3mm≤R1≤150mm; Furthermore, the closer to the second end, the larger the radius of curvature of the first reflecting surface.

[0013] Further optionally, in a plane perpendicular to the first direction, the profile of the first reflective surface includes a low beam segment, a high beam segment, and a transition segment connecting the low beam segment and the high beam segment; the low beam segment is close to the first end, and the high beam segment is close to the second end; Wherein, the total length of the profile of the first reflecting surface is L z ; The length of the low beam segment is L j The radius of curvature of the near beam segment is R. j The L z L j and R j Satisfy: 0.1≤L j / L z ≤0.3; the R j ≤10mm; The length of the transition section is L. g The radius of curvature of the transition section is R. g The L z L g and R g Satisfy: 0.5≤L g / L z ≤0.8; the 10mm≤R g ≤50mm; The length of the high beam segment is L. y The radius of curvature of the high beam segment is R. y The L z L y and R y Satisfy: 0.1≤L y / L z ≤0.2; the 50mm≤R y ≤100mm.

[0014] Further optionally, in a plane perpendicular to the first direction, the profile of the first reflective surface is a parabolic segment; wherein the light-emitting element is located at the focal point of the parabolic segment.

[0015] Further optionally, the second reflective surface is a plane; Alternatively, the second reflective surface is a concave curved surface that moves away from the light source assembly, and the radius of curvature of the second reflective surface is R2, wherein R2 satisfies: 50mm≤R2≤300mm.

[0016] Further optionally, the reflective component includes a first reflective portion and a second reflective portion; wherein the first reflective portion is formed with a first reflective surface, the second reflective portion is formed with a second reflective surface, and the first reflective portion and the second reflective portion are integrally formed or independent of each other.

[0017] Further optionally, at least one of the lamp panel, the first reflector and the second reflector is movably disposed; the movable disposal includes at least one of rotation, sliding or swinging.

[0018] Further optionally, the first reflective surface is made of mirror material and the second reflective surface is made of frosted material; or, the first reflective surface is made of frosted material and the second reflective surface is made of mirror material; or, both the first reflective surface and the second reflective surface are made of mirror material; or, both the first reflective surface and the second reflective surface are made of frosted material.

[0019] The present invention also provides a lamp, including a housing assembly and an optical module as described in any of the above claims; an optical space is formed inside the housing assembly, a light-emitting part of the lamp is provided on one side of the housing assembly, the optical module is disposed in the optical space, and the light emitted by the optical module is emitted through the light-emitting part of the lamp.

[0020] Further optionally, the light-emitting part of the lamp includes a light-transmitting area disposed on one side of the housing assembly; or, the light-emitting part of the lamp includes a light-emitting port opened on one side of the housing assembly; The light-emitting part of the lamp and the light-emitting port of the module are respectively arranged.

[0021] Alternatively, a mounting structure is provided on one side of the light-emitting part of the lamp, the mounting structure being used to mount the lamp panel, and a shielding structure is provided between the mounting structure and the light-emitting part of the lamp.

[0022] Further optionally, the light outlet is provided with a light-emitting plate, and the surface of the light-emitting plate is provided with a texture, microstructure or coating; Alternatively, the surface of the light-transmitting area may be provided with a textured surface, microstructure, or coating.

[0023] Alternatively, the light-emitting part of the lamp is provided with a light-shielding structure on the side relatively away from the light-emitting element.

[0024] Further optionally, the luminaire also includes a heat sink disposed adjacent to the light source assembly, and the heat sink and the light source assembly have a thermal conduction relationship.

[0025] Compared with the prior art, the main advantages of the present invention are as follows: (1) The optical module has sufficient light control size in the width direction, so it does not need to rely on the light control size in the thickness direction; under the premise of ensuring the same light flux, the overall thickness of the optical module can be significantly reduced; (2) The direction of the light emitted by the light-emitting component is not consistent with the overall light-emitting direction of the optical module, and the light-emitting component is not exposed to the user's field of vision; thus eliminating direct glare and reducing the user's eye discomfort. (3) It effectively eliminates the phenomenon of local concentration or dark areas of light at the light outlet of the module, making the emitted light more evenly distributed within the light outlet range of the module, thus improving the uniformity and light quality of the illumination. Attached Figure Description

[0026] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0027] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0028] Figure 1 A schematic diagram of the structure of the first and second reflecting surfaces provided by the present invention; Figure 2 This is a schematic diagram of the axial structure of an embodiment of the optical module provided by the present invention; Figure 3a , Figure 3b and Figure 3c This is a side view of an embodiment of the optical module provided by the present invention. Figure 4 A schematic diagram of the structure of the first reflective surface embodiment provided by the present invention; Figure 5 This is an exploded structural diagram of a lamp embodiment provided by the present invention; Figure 6This is a side view of the internal structure of the lamp provided in the present invention. In the picture: 1-Light source assembly; 11-Light-emitting element; 12-Lamp panel; 2-Reflective component; 21-First reflective part; 211-First reflective surface; 2111-First end; 2112-Second end; 2113-Near beam section; 2114-Transition section; 2115-High beam section; 22-Second reflective part; 221-Second reflective surface; 2211-Third end; 2212-Fourth end; 23-Module light output port; 31-Housing; 32-Base; 321-Mounting structure; 322-Shielding structure; 323-Light-emitting part of the lamp; 33-Optical space; 34-Shielding structure. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0031] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0032] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0033] like Figures 1 to 4As shown, this embodiment provides an optical module, including a light source assembly 1 and a reflective assembly 2. The light source assembly 1 includes a lamp panel 12 and a light-emitting element 11 disposed on the lamp panel 12. The reflective assembly 2 includes a first reflective surface 211 and a second reflective surface 221, which are opposite to each other and arranged at an angle. The first reflective surface 211 includes a first end 2111 and a second end 2112 disposed opposite to each other, and the second reflective surface 221 includes a third end 2211 and a fourth end 2212 disposed opposite to each other. The first end 2111 and the fourth end 2212 are disposed far apart, while the second end 2112 and the third end 2211 are disposed close to each other. The first end 2111 is located near the end of the lamp board 12, and a module light outlet 23 is formed between the other end of the lamp board 12 and the fourth end 2212. The first reflective surface 211 is used to reflect part of the light emitted by the light-emitting element 11 to the second reflective surface 221; the second reflective surface 221 is used to deflect the light emitted directly from the light-emitting element 11 to the second reflective surface 221 and the light reflected by the first reflective surface 211 to the second reflective surface 221 towards the module light outlet 23, and at least part of the light is emitted from the module light outlet 23 in a direction away from the light-emitting element 11; That is, a portion of the light emitted by the light-emitting element 11 is directed toward the first reflective surface 211. After being reflected by the first reflective surface 211, this portion of the light is directed toward the second reflective surface 221. Another portion of the light emitted by the light-emitting element 11 is directed directly toward the second reflective surface 221. The second reflective surface 221 deflects all the light rays directed toward it toward the module light outlet 23, and at least a portion of the light rays are emitted from the module light outlet 23 in a direction away from the light-emitting element 11.

[0034] Preferably, the first reflective surface 211 and the second reflective surface 221 are arranged opposite to each other in the width direction of the optical module as a whole, and the lamp plate 12 and the light outlet 23 of the module are located on the same side in the thickness direction of the optical module as a whole.

[0035] This setup achieves the following technical effects: (1) Existing optical modules use a single reflector with the light outlet located directly below it. To improve light control, the mixing distance is increased by increasing the thickness of the reflector, resulting in an increase in the overall thickness of the optical module. This application provides two reflective surfaces in the width direction of the optical module, which increases the mixing distance in the width direction. It does not need to rely on the light control dimensions in the thickness direction of the optical module to meet the light distribution requirements, and can achieve a thinner design of the module. Furthermore, under the premise of ensuring the same light flux, the solution of this application widens the width of the light outlet 23 of the module, which is beneficial to reducing blue light hazards. (2) The light emitted by the light-emitting element 11 is directed toward the first reflective surface 211 or the second reflective surface 221. After one or two reflections, the light is emitted from the light outlet 23 of the module. Since the direction of the light emitted by the light-emitting element 11 is not consistent with the overall light output direction of the optical module, the light-emitting element 11 itself is not directly exposed to the user's field of vision, which effectively eliminates direct glare and significantly reduces the eye discomfort and visual fatigue caused by high brightness when the user looks directly at the LED beads, thus improving the user experience. (3) Of the light emitted by the light-emitting element 11, part is directly directed to the second reflective surface 221, and the other part is reflected by the first reflective surface 211 and then reaches the second reflective surface 221. The two light rays are deflected by the second reflective surface 221 and then emitted from the module light outlet 23. The main function of the first reflective surface 211 is to converge the light, converging a portion of the light emitted by the light-emitting element 11 at a larger angle into a beam of light at a smaller angle and directing it to the second reflective surface 221. The main function of the second reflective surface 221 is to deflect the light, deflecting the light emitted directly from the light-emitting element 11 to the second reflective surface 221 or the light reflected from the first reflective surface 211 to the second reflective surface 221 and then to the module light outlet 23. This arrangement effectively eliminates the phenomenon of local concentration or dark areas of light at the module light outlet 23, making the emitted light more evenly distributed within the module light outlet 23, and improving the uniformity and light quality of the illumination. (4) The second reflective surface 221 of this application causes light to be reflected and emitted from the light outlet 23 of the module in a direction away from the light source component 1, effectively customizing the illumination range of the optical module, and achieving directional projection without physically moving or shifting the lamp body.

[0036] The following description concerns the light emitted by the light-emitting element 11. (See attached image.) Figure 6 The light emitted by the light-emitting element 11, which is reflected by the first reflective surface 211, then deflected by the second reflective surface 221, and finally directed towards the light outlet 23 of the module, is the first light ray L1. The light emitted by the light-emitting element 11, which is directly deflected by the second reflective surface 221 and directed towards the light outlet 23 of the module, is the second light ray L2. After the first ray L1 is emitted from the light output port 23 of the module, it illuminates at least part of the far-end region outside the light output port 23 of the module; after the second ray L2 is emitted from the light output port 23 of the module, it illuminates at least part of the near-end region outside the light output port 23 of the module. The far-end region and near-end region outside the module light-emitting port 23 are a pair of relative concepts in the overall width direction of the optical module. The direction away from and close to the light-emitting element 11 of the module light-emitting port 23 is the width direction of the module light-emitting port 23. The far-end region outside the module light-emitting port 23 is the region on the side relatively far from the light-emitting element 11 in the width direction after the light exits the module light-emitting port 23, and the near-end region outside the module light-emitting port 23 is the region on the side relatively close to the light-emitting element 11 in the width direction after the light exits the module light-emitting port 23. In some embodiments, the far-end region outside the module light-emitting port 23 is closer to the user than the near-end region outside the module light-emitting port 23.

[0037] This setup achieves the following technical effects: (1) By directing light from different paths to different positions in the illumination area, the target illumination surface is partitioned, which effectively avoids the problem of excessive or insufficient light in a single area and significantly improves the uniformity of illuminance of the entire target illumination surface. (2) The first light mainly illuminates the far-end area outside the light outlet 23 of the module, and the second light mainly illuminates the near-end area outside the light outlet 23 of the module, so that the light emitted by the light-emitting element 11 achieves full coverage from the near-end area to the far-end area, allowing the user to obtain a suitable light intensity throughout the entire lighting area without having to frequently adjust the position or angle of the lamp, thus improving the convenience and comfort of use. (3) Whether it is the first light beam that mainly illuminates the far-end area or the second light beam that mainly illuminates the near-end area, both are emitted from the module light outlet 23 in a direction away from the light-emitting element 11, thus avoiding most of the light beam from illuminating the direction closer to the light-emitting element 11 and achieving directional light projection.

[0038] The following describes the various structures within the optical module; see [link / reference]. Figures 3a to 3c The lamp panel 12 extends along the first direction, and multiple light-emitting elements 11 are provided. The multiple light-emitting elements 11 are arranged sequentially on the lamp panel 12 along the first direction; the first reflective surface 211 and the second reflective surface 221 are arranged opposite to each other in a plane perpendicular to the first direction. The first reflective surface 211 and the second reflective surface 221 both have a lateral extension direction and a longitudinal extension direction, with the longitudinal extension direction perpendicular to the lateral extension direction; the longitudinal extension directions of the first reflective surface 211 and the second reflective surface 221 are both parallel to the first direction; the lateral extension direction of the first reflective surface 211 is the extension direction from the first end 2111 to the second end 2112, and the lateral extension direction of the second reflective surface 221 is the extension direction from the third end 2211 to the fourth end 2212. The overall length of the optical module is parallel to the first direction; Furthermore, the direction in which the first reflective surface 211 and the second reflective surface 221 are arranged opposite each other is the second direction, which is perpendicular to the first direction; a direction that is perpendicular to both the first and second directions is defined as the third direction. Among them, the width direction of the optical module is parallel to the second direction, and the thickness direction of the optical module is parallel to the third direction. The first end 2111 and the fourth end 2212 are located on one side of the optical module in the third direction, and the first end 2111 and the fourth end 2212 are set far apart in the second direction; the second end 2112 and the third end 2211 are located on the other side of the optical module in the third direction, and the second end 2112 and the third end 2211 are set close together in the second direction.

[0039] In some further embodiments, the third direction is the vertical direction; when the optical module is used in products such as desktop lighting, the user faces the optical module and looks from the light outlet 23 side of the module to the lamp panel 12 side. The first direction is the left-right direction, and the second direction is the front-back direction; the first end 2111 is the rear end and away from the user, and the fourth end 2212 is the front end and close to the user; the second end 2112 is located in front of and above the first end 2111, the third end 2211 is close to the second end 2112, and the fourth end 2212 is located in front of and below the third end 2211.

[0040] With this configuration, the optical module of this application can project light forward, that is, project light towards the user, by means of a light source component and a first and second reflective surface arranged opposite to each other, covering the lighting area required for the user's work, reducing stray light backward, and improving the utilization rate of light.

[0041] The specific configuration of the first reflecting surface 211 and the second reflecting surface 221 will be described below. In a plane perpendicular to the first direction, the line connecting the first end 2111 and the second end 2112 is L. AB The line connecting the third end 2211 and the fourth end 2212 is L. CD Connect L AB The angle between the plane containing the light panel 12 and the plane containing the light panel 12 is α, and the line L is drawn... CD The angle between L and the plane containing the module's light output port 23 is β. AB and L CD The included angle is θ, and θ is the line connecting L. CD With line L AB The angle between them facing the light output port 23 of the module; L CD and L AB The length of L satisfies the following relationship: CD >L AB ; α, β and θ satisfy the following relationships: α>β, 90°<θ<180°.

[0042] This setup achieves the following technical effects: (1) The angle θ between the first reflective surface 211 and the second reflective surface 221 is limited to an obtuse angle greater than 90° and less than 180°, that is, the two reflective surfaces are inclined and open in the direction of the light output port 23 of the module. Compared with the existing optical modules that use one reflective surface and increase the thickness of the reflective surface to increase the light mixing distance, the two reflective surfaces of this application with an obtuse angle increase the light mixing distance in the overall width direction of the optical module. It does not need to rely on the light control size in the overall thickness direction of the optical module to meet the light distribution requirements, which can significantly reduce the overall thickness of the optical module and realize the thin design of the module. Moreover, under the premise of the same light flux, the solution of this application widens the width of the light output port compared with the existing solution, which is beneficial to reducing the blue light hazard. (2) Effective reflection length L of the second reflecting surface 221 CD The effective reflection length L is greater than that of the first reflecting surface 211 AB Since the second reflective surface 221 is responsible for deflecting the light to the module light output port 23, the increase in its reflection length means that the effective light output port 23 of the module light output port is correspondingly increased. Under the same incident light conditions, more light is allowed to be reflected and emitted from the module light output port 23, reducing the obstruction and loss of light at the edge of the module light output port 23, and effectively improving the light output efficiency of the optical module. (3) The tilt angle α of the first reflective surface 211 relative to the plane of the lamp panel 12 is greater than the tilt angle β of the second reflective surface 221 relative to the plane of the module light outlet 23, in conjunction with L CD >L AB The length relationship between the two reflective surfaces allows the first reflective surface 211 to receive a larger portion of the light from the light-emitting element 11, namely the first light ray L1, compared to the second reflective surface 221. This portion of light ultimately illuminates the far-end region of the module's light outlet 23. The second reflective surface 221, on the other hand, directly receives a smaller portion of the light from the light-emitting element 11, namely the second light ray L2, which ultimately illuminates the near-end region of the module's light outlet 23. In other words, the first light ray L1 accounts for a larger portion of the total light from the light-emitting element, and its energy is also higher than that of the second light ray L2. The first light ray L1 has a longer optical path and greater energy loss when illuminating the far-end region, while the second light ray L2 has a shorter optical path and less energy loss when illuminating the near-end region. Therefore, this application uses the higher-energy first light ray L1 to bear the greater energy loss when illuminating the far-end region, and uses the lower-energy second light ray L2 to bear the less energy loss when illuminating the near-end region. This results in the energy of the far-end region and the near-end region being almost the same, and the illuminance of the entire target illumination surface is uniform, achieving uniform directional projection.

[0043] Furthermore, α, β, and θ satisfy: 35°≤α≤55°, 9°≤β≤29°, and 105°≤θ≤125°.

[0044] Preferably, α=45°, β=19°, and θ=115°.

[0045] This setup achieves the following technical effects: (1) The angle α between the first reflective surface 211 and the plane where the lamp plate 12 is located is limited to between 35° and 55°, and the angle θ between the two reflective surfaces is limited to between 105° and 125°. Within this range, the angle β between the second reflective surface 221 and the plane where the module light outlet 23 is located is limited to between 9° and 29°. Combined with the range of α, the first light reflected from the first reflective surface 211 to the second reflective surface 221 and the second light directly incident on the second reflective surface 221 achieve optimal superposition of luminous flux at the module light outlet 23. The light emitted from the module light outlet 23 after being deflected by the second reflective surface 221 has an emission deflection angle of 40° to 60° relative to the vertical direction, thereby achieving directional projection. Furthermore, the illuminance attenuation curve of the light spot formed on the target illumination surface tends to be flat between the near and far regions, effectively avoiding the phenomenon of "light spot centering" and achieving a highly uniform illuminance distribution. (2) Limiting the angle θ between the two reflective surfaces to between 105° and 125° can ensure that the light can be more accurately irradiated at the light outlet and control the light output efficiency. If the angle is too large or too small, it may be blocked by the edge of the light outlet. (3) This ensures that the light-emitting element 11 is not directly exposed to the user's direct field of vision, thereby eliminating direct glare to the maximum extent while ensuring effective illumination.

[0046] The dimensions of the first reflecting surface 211 and the second reflecting surface 221 are described below, L CD The projected length of the module's output port 23 on the plane is L. cd L AB The projected length L of the plane where the light panel 12 is located ab L cd With L ab The ratio satisfies: 3≤L cd / L ab ≤4.

[0047] With this configuration, the projection length L of the second reflective surface 221 on the plane where the module's light output port 23 is located is... cd The projection length L of the first reflecting surface 211 on the plane where the lamp plate 12 is located. ab Three to four times; because the second reflective surface 221 undertakes the key function of ultimately deflecting the two different light sources toward the module's light output port 23, the projection length L cdThe second reflective surface 221 is defined in the width direction of the entire optical module, providing sufficient reflection scale for the full overlap and spatial mixing of various light rays on the second reflective surface 221. At the same time, it ensures that all light rays reflected by the first reflective surface 211 and the light rays directly emitted by the light-emitting element 11 can be fully received by the effective working area of ​​the second reflective surface 221, allowing more light rays to reach the module light output port 23 and improving the light energy transmission efficiency from the light-emitting element 11 to the module light output port 23.

[0048] Furthermore, in a plane perpendicular to the first direction, the overall thickness of the optical module is h, and the overall width of the optical module is b; h and b satisfy: 2:4≤h:b≤2:7.

[0049] This configuration controls the maximum emission angle of the emitted light relative to the horizontal direction to within the range of 40° to 60°. Under normal usage posture, the user cannot directly see the light-emitting element 11 through the module's light-emitting port 23, effectively eliminating direct glare. If the ratio is less than 2:4, the reflective surface width is insufficient and / or the module's light-emitting port 23 is relatively too narrow, resulting in a decrease in light emission efficiency. If the ratio is greater than 2:7, the module's light-emitting port 23 is too wide and the light cannot be fully spread, resulting in a decrease in uniformity.

[0050] The shapes of the first reflective surface 211 and the second reflective surface 221 will be described below. The first reflective surface 211 is a plane or a curved surface that is concave in the direction away from the light source component 1, and the second reflective surface 221 is a plane or a curved surface that is concave in the direction away from the light source component 1.

[0051] The first reflecting surface 211 and the second reflecting surface 221 are described below: In some embodiments, the first reflective surface 211 is a concave curved surface that moves away from the light source assembly 1. From the first end 2111 to the second end 2112, the radius of curvature of the first reflective surface 211 is R1, which satisfies: 3mm≤R1≤150mm; and the closer to the second end 2112, the larger the radius of curvature of the first reflective surface 211.

[0052] This setup achieves the following technical effects: (1) The first reflective surface 211 is configured as a concave curved surface with the radius of curvature gradually increasing from the first end 2111 to the second end 2112. The radius of curvature is smaller and the curvature is greater near the first end 2111, so that the light rays from the light-emitting element 11 to this area have a larger deflection angle and are efficiently gathered and guided to the second reflective surface 221 in a region far from the first reflective surface 211. The radius of curvature gradually increases and the curved surface tends to be flatter near the second end 2112, so that the deflection angle of the light rays to this area gradually decreases and is guided to the second reflective surface 221 in a region close to the first reflective surface 211. This gradual design of the radius of curvature from small to large makes the deflection ability of the incident light rays at different positions on the first reflective surface 211 gradually change, which can implement differentiated reflection control for light rays incident at different angles, and avoid the light rays from producing bright and dark stripes or local light spots at the light outlet 23 of the module due to the sudden change in the curvature of the reflective surface, which significantly improves the spatial uniformity of the emitted light rays. (2) In this optical module, the radius of curvature R1 of the first reflective surface 211 is limited to between 3mm and 150mm. When R1 is less than 3mm, the curvature of the reflective surface is too large, the processing difficulty increases significantly, and the light is too concentrated, which reduces the uniformity. When R1 is greater than 150mm, the reflective surface is too flat, and the ability to converge and deflect light is significantly weakened. Therefore, the radius of curvature range of 3mm to 150mm is the key numerical range that achieves the optimal balance between sufficient light converging ability, good light output uniformity, and feasible processing technology. This ensures the core optical function of the first reflective surface 211 and enables the reflective surface to be realized in actual production at a reasonable cost and with high precision.

[0053] In some further embodiments, in a plane perpendicular to the first direction, the profile of the first reflective surface 211 includes a low beam segment 2113, a high beam segment 2115, and a transition segment 2114 connecting the low beam segment 2113 and the high beam segment 2115; the low beam segment 2113 is close to the first end 2111, and the high beam segment 2115 is close to the second end 2112. The total length of the profile of the first reflecting surface 211 is L. z The length of the low beam segment 2113 is L. j The radius of curvature of the near beam 2113 is R. j L z L j and R j Satisfy: 0.1≤L j / L z ≤0.3; R j ≤10mm; The length of transition section 2114 is L g The radius of curvature of transition segment 2114 is R. g L z Lg and R g Satisfy: 0.5≤L g / L z ≤0.8; 10mm≤R g ≤50mm; The length of the high beam segment 2115 is L y The radius of curvature of the high beam segment 2115 is R. y L z L y and R y Satisfy: 0.1≤L y / L z ≤0.2; 50mm≤R y ≤100mm.

[0054] Preferred, L j / L z +L g / L z +L y / L z =1.

[0055] With this configuration, the profile of the first reflective surface 211 is constructed as a multi-segment structure with the near-beam segment 2113, the transition segment 2114, and the far-beam segment 2115 smoothly connected in sequence, and the radius of curvature of each segment gradually increases from small to large along the light transmission direction; the near-beam segment 2113 has the smallest radius of curvature, which strongly converges the large-angle light emitted by the light-emitting element 11; the transition segment 2114 has a moderate radius of curvature, and its length accounts for more than 50% of the total length of the profile of the first reflective surface 211, providing a transition for the light to change from a strongly converged state to a collimated emission state. Ample smooth transition space; the high beam segment 2115 has the largest radius of curvature, guiding the light to the second reflective surface 221 in a near-collimated state; through the gradual and smooth increase of the radius of curvature, the light undergoes a progressive deflection of "strong convergence → smooth transition → approaching collimation" during the reflection process, ensuring the uniformity of the final emitted light, effectively expanding the effective light-receiving angle range, and enabling a larger portion of the light emitted by the light-emitting element 11 to be captured and effectively utilized by the first reflective surface 211, thereby improving the light distribution flexibility and light energy utilization rate of the optical module.

[0056] In other embodiments, the profile of the first reflective surface 211 is a parabolic segment in a plane perpendicular to the first direction; wherein the light-emitting element 11 is located at the focal point of the parabolic segment.

[0057] Setting a parabolic curve can achieve the following technical effects: (1) According to the geometric optical properties of the parabola, the light emitted by the light-emitting element 11 placed at the focal point is reflected by the parabola and the reflected light rays are all parallel to the axis of symmetry of the parabola. Thus, the light rays emitted by the light-emitting element 11 that originally diverged in all directions are reflected by the first reflecting surface 211 to form a collimated beam, which is then directed toward the second reflecting surface 221 in a unified direction of emission. This avoids the divergence and scattering of light rays during transmission and achieves precise control over the direction of light emission. (2) The light rays reflected by the first reflecting surface 211 and directed to the second reflecting surface 221 are collimated parallel beams, so that the second reflecting surface 221 receives a stable incident light field with uniform direction and distribution. This stable incident light field enables the second reflecting surface 221 to deflect the incident light rays in a predictable and consistent manner, avoiding the problem of large differences in the reflection effect of different areas of the second reflecting surface 221 due to the dispersion of the incident light angle, and effectively improving the uniformity of the illumination of the final emitted light rays of the optical module.

[0058] In other embodiments, the first reflective surface 211 is a plane, which can achieve basic reflection of light, and together with the second reflective surface 221, achieves directional light projection of the entire optical module.

[0059] In some embodiments, the second reflective surface 221 is a concave curved surface that extends away from the light source assembly 1. From the third end 2211 to the fourth end 2212, the radius of curvature of the second reflective surface 221 is larger as it gets closer to the fourth end 2212. The radius of curvature of the second reflective surface 221 is R2, which satisfies the following condition: 50mm ≤ R2 ≤ 300mm.

[0060] In other embodiments, the second reflective surface 221 is planar.

[0061] When the second reflecting surface 221 is a concave curved surface, it is beneficial to further adjust the light reflected from the first reflecting surface 211, so that the light has a better uniformity distribution. When the second reflective surface 221 is a plane, it can also deflect the light to the module's light output port 23 and project the light forward.

[0062] The following describes the formation of the first reflective surface 211 and the second reflective surface 221. The reflective assembly 2 includes a first reflective portion 21 and a second reflective portion 22; wherein, the first reflective portion 21 is formed with a first reflective surface 211, and the second reflective portion 22 is formed with a second reflective surface 221. Specifically, the first reflective portion 21 and the second reflective portion 22 can be integrally formed or can be set independently of each other.

[0063] Furthermore, at least one of the lamp panel 12, the first reflector 21, and the second reflector 22 is movably disposed, and the first reflector 21 and the second reflector 22 can be controlled to move independently; wherein, the movable disposal includes at least one of rotation, sliding, or swinging.

[0064] With this configuration, the relative spatial position and angular relationship between the lamp panel 12, the first reflective surface 211, and / or the second reflective surface 221 can be changed by coordinating the movement of the three components. Adjusting the position or angle of the lamp panel 12 can reduce direct glare. The luminous flux ratio between the first light reflected from the first reflective surface 211 to the second reflective surface 221 and the second light directly hitting the second reflective surface 221, and / or the angle between the first light and the second light hitting the second reflective surface 221, can be adjusted, thereby adjusting the energy and illumination range of the far and near regions.

[0065] In some embodiments, the lamp panel 12 and the first reflector 21 are integrated and can be controlled to slide or swing in a second direction.

[0066] In other embodiments, the first reflective part 21 and the second reflective part 22 are integrally formed, which is convenient for production and installation; in this case, neither the first reflective part 21 nor the second reflective part 22 can slide or swing.

[0067] Specifically, the first reflective part 21 and the second reflective part 22 can be made of a smooth metal material that can reflect light, or made of a non-metallic material and plated with a metal layer or coated with a reflective coating to reflect the light irradiated onto it; the light reflected by the first reflective part 21 and the second reflective part 22 can improve the light output rate and make the light output more uniform.

[0068] The following describes the materials of the first reflective surface 211 and the second reflective surface 221. The first reflective surface 211 and the second reflective surface 221 can be made of mirror material or frosted material, respectively. The reflective surface of the mirror material is smooth, and the incident angle is equal to the reflection angle, which directionally reflects the light, avoids the light path deviation and the formation of stray light, and reduces energy loss. The reflective surface of the frosted material is relatively rough, which diffusely reflects the incident light. Its illuminance uniformity and color consistency of the outgoing light are better than those of the mirror material reflective surface, and it is also conducive to eliminating glare, but its reflection efficiency is lower than that of the mirror material reflective surface.

[0069] Specifically, there are four types of materials for the first reflective surface 211 and the second reflective surface 221, and the following four types of combinations of different materials can be selected in actual use: The first type: the first reflective surface 211 is made of mirror material, and the second reflective surface 221 is made of frosted material; the first reflective surface 211 helps to reduce glare, while the second reflective surface 221 helps to improve the color consistency of light in the far area; it has a more cut-off light spot, better light control ability, and better uniformity; The second type: the first reflective surface 211 is made of frosted material and the second reflective surface 221 is made of mirror material; it can reduce the back stray light, that is, the light emitted from the module's light outlet 23 towards the light source component 1; the light spot is evenly distributed overall and the color distribution is better; The third type: Both the first reflective surface 211 and the second reflective surface 221 are made of mirror material; they can be manufactured as a single piece, resulting in a longer illumination range; The fourth type: Both the first reflective surface 211 and the second reflective surface 221 are made of frosted material; this can eliminate glare and enhance the overall color consistency of the irradiated area.

[0070] like Figures 5 to 6 As shown, this embodiment also provides a lamp, including a housing assembly and an optical module of any of the above embodiments; the lamp can be a table lamp, cabinet lamp, wall cabinet lamp, screen hanging lamp, or corner lamp, etc., for polarized light application scenarios; preferably, the lamp is a table lamp, placed on a tabletop, for lighting the tabletop area.

[0071] An optical space 33 is formed inside the housing assembly. A light-emitting part 323 is provided on one side of the housing assembly. An optical module is disposed in the optical space 33. The light emitted by the optical module is emitted through the light-emitting part 323.

[0072] Preferably, the length direction of the optical module and the housing assembly is parallel to the first direction, the width direction of the optical module and the housing assembly is parallel to the second direction, and the thickness direction of the optical module and the housing assembly is parallel to the third direction.

[0073] In some further embodiments, the light-emitting portion 323 of the luminaire includes a light-transmitting area disposed on one side of the housing assembly; or, the light-emitting portion 323 of the luminaire includes a light-emitting port opened on one side of the housing assembly. With this configuration, the light fixture can emit light directly through the light-transmitting area or through the light-emitting port; this allows for flexible configuration and reduces assembly difficulty. When the light-emitting part 323 of the lamp includes a light-transmitting area disposed on one side of the housing assembly, the surface of the light-transmitting area may be further textured, microstructured or coated to further homogenize, mix and soften the light emitted by the optical module, as well as shield the internal optical components to avoid direct glare. When the light-emitting part 323 of the lamp includes a light-emitting port opened on one side of the housing assembly, a light-emitting plate can be further provided at the light-emitting port. The surface of the light-emitting plate can be further textured, microstructured or coated to further homogenize, mix and soften the light emitted by the optical module, as well as shield the internal optical components to avoid direct glare. The light-emitting part 323 of the housing assembly and the light-emitting port 23 of the optical module are correspondingly arranged so that the light emitted by the optical module can be directly emitted through the light-emitting part 323, thereby reducing light loss.

[0074] A mounting structure 321 is also provided on one side of the light-emitting part 323 of the lamp. The mounting structure 321 is used to mount the lamp panel 12. A shielding structure 322 is provided between the mounting structure 321 and the light-emitting part 323 of the lamp. The shielding structure 322 is used to shield the light-emitting element 11 from direct light, so as to prevent the light emitted by the light-emitting element 11 from directly shining into the user's eyes.

[0075] The mounting structure 321 is preferably a mounting groove, in which the lamp plate 12 is fitted.

[0076] In some embodiments, the housing assembly includes a housing 31, an optical space 33 is formed inside the housing 31, and a light-emitting part 323 and a mounting structure 321 are formed at the bottom of the housing 31; the light-emitting part 323 and the module light-emitting port 23 are correspondingly arranged, and the mounting structure 321 is used to mount the lamp panel 12.

[0077] In other embodiments, the housing assembly includes a housing 31 and a base 32. An optical space 33 is formed inside the housing 31. The base 32 is disposed at the bottom of the optical space 33 and has a light-emitting part 323 and a mounting structure 321. The light-emitting part 323 and the light-emitting port 23 of the module are correspondingly arranged. The mounting structure 321 is used to mount the lamp panel 12. The length direction of the housing 31 is parallel to the first direction, the width direction of the housing 31 is parallel to the second direction, and the thickness direction of the housing 31 is parallel to the third direction.

[0078] This setup achieves the following technical effects: (1) For the integrated housing solution: the housing 31 directly forms the light-emitting part 323 and the mounting structure 321 at the bottom, which reduces the number of parts, makes the structure compact, and has high assembly efficiency. The relative position between the light-emitting part 323 and the mounting structure 321 is guaranteed by the integrated molding, which has high positioning accuracy and is conducive to the efficient emission of light. (2) For the shell + base split solution: the shell 31 and the base 32 are set separately. The base 32 can be replaced according to the needs of different optical modules. It has a high degree of modularity and is easy to maintain. The shell 31 and the base 32 can be manufactured with different materials and processes, which makes the process more flexible. At the same time, the base 32 can also be used as part of the heat dissipation conduction path, which is beneficial to the heat dissipation of the lamp board 12. (3) Regardless of which scheme is adopted, the corresponding arrangement of the light-emitting part 323 of the lamp and the light-emitting port 23 of the module ensures that the light can be emitted from the lamp with minimal loss. The mounting structure 321 provides a reliable positioning reference for the optical module, ensuring that the optical performance of the optical module is fully realized in the lamp.

[0079] The housing 31 protects the components installed inside it. Preferably, the bottom of the housing 31 is the light-emitting side. Specifically, the housing 31 can be roughly cylindrical. The shape of the longitudinal section (the section along the direction perpendicular to the length of the housing 31) of the housing 31 can be rectangular, circular, elliptical, triangular, quadrilateral or other shapes. The material of the housing 31 can be resin or metal. Specifically, the first reflective part 21 and the second reflective part 22 are disposed in the optical space 33. When the first reflective part 21 and the second reflective part 22 are formed independently, the first reflective part 21 and the housing 31 are slidably connected in the second direction, so that the first reflective part 21 can slide relative to the housing 31 in the second direction; or, the first reflective part 21 and the housing 31 are rotatably connected through a first rotating shaft, the first rotating shaft being parallel to the first direction, so that the first reflective part 21 can swing relative to the housing 31 around the first rotating shaft. The second reflector 22 and the housing 31 are slidably connected in the third direction, so that the second reflector 22 can slide relative to the housing 31 in the third direction; or, the second reflector 22 and the housing 31 are rotatably connected by a second rotating shaft, the second rotating shaft being parallel to the first direction, so that the second reflector 22 can swing relative to the housing 31 around the second rotating shaft.

[0080] In some embodiments, the housing assembly has a light-shielding structure 34 on the side of the light-emitting part 323 that is relatively far away from the light-emitting element 11. The light-shielding structure 34 is located between the light-emitting part 323 and the user, and can form an effective light-shielding structure 34 between the user's line of sight and the light-emitting element 11, so that the user cannot directly see the light-emitting element 11 through the light-emitting part 323 in a normal use posture.

[0081] Furthermore, the light-shielding structure 34 can be an additional structure provided on the housing assembly, such as a light-shielding edge. It can also be achieved by increasing the thickness of the housing assembly itself on the side of the light-emitting part 323 that is relatively far away from the light-emitting element 11. That is, the thickness of the housing assembly on the side corresponding to the fourth end is greater than the thickness on the side corresponding to the first end. In other words, the front thickness of the housing assembly in the width direction is greater than the rear thickness in the width direction, which further reduces the difficulty of processing and assembly.

[0082] In addition, the luminaire also includes a heat sink, which is disposed adjacent to the light source assembly 1. The heat sink and the light source assembly 1 have a thermal conduction relationship, which can quickly dissipate the heat generated by the light source assembly 1 during operation.

[0083] Specifically, the heat sink can be placed below the lamp panel and integrated with the mounting structure, or placed behind the lamp panel without affecting the thickness of the back of the lamp.

[0084] This application does not limit the assembly method of the housing assembly and the optical module. The housing assembly may have an opening at the bottom, top or side, and the light source assembly 1 and the reflector assembly 2 are installed into the optical space 33 through the opening and then encapsulated.

[0085] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. An optical module, characterized in that, It includes a light source assembly (1) and a reflection assembly (2); The light source assembly (1) includes a lamp panel (12) and a light-emitting element (11) disposed on the lamp panel (12); The reflective component (2) includes a first reflective surface (211) and a second reflective surface (221), which are opposite to each other and arranged at an angle. The first reflective surface (211) includes a first end (2111) and a second end (2112) arranged opposite to each other, and the second reflective surface (221) includes a third end (2211) and a fourth end (2212) arranged opposite to each other. The first end (2111) and the fourth end (2212) are arranged far apart, and the second end (2112) and the third end (2211) are arranged close together. The first end (2111) is disposed near one end of the lamp panel (12), and a module light outlet (23) is formed between the other end of the lamp panel (12) and the fourth end (2212); The first reflective surface (211) is used to reflect part of the light emitted by the light-emitting element (11) to the second reflective surface (221); the second reflective surface (221) is used to deflect the light emitted by the light-emitting element (11) directly onto the second reflective surface (221) and the light reflected by the first reflective surface (211) onto the second reflective surface (221) toward the module light outlet (23), and at least part of the light is emitted from the module light outlet (23) in a direction away from the light-emitting element (11).

2. The optical module according to claim 1, characterized in that, The light emitted by the light-emitting element (11) that is reflected by the first reflective surface (211) to the second reflective surface (221) and then deflected toward the light outlet (23) of the module is the first light ray L1, and the light emitted by the light-emitting element (11) that is directly deflected toward the light outlet (23) of the module is the second light ray L2. The first light ray L1 is emitted from the light output port (23) of the module and at least partially illuminates the far-end region outside the light output port (23); the second light ray L2 is emitted from the light output port (23) of the module and at least partially illuminates the near-end region outside the light output port (23).

3. The optical module according to claim 1, characterized in that, The lamp panel (12) extends along a first direction; the first reflective surface (211) and the second reflective surface (221) are arranged opposite each other in a plane perpendicular to the first direction; The longitudinal extension directions of the first reflective surface (211) and the second reflective surface (221) are both parallel to the first direction. The lateral extension direction of the first reflective surface (211) is the extension direction from the first end (2111) to the second end (2112). The lateral extension direction of the second reflective surface (221) is the extension direction from the third end (2211) to the fourth end (2212).

4. The optical module according to claim 3, characterized in that, In a plane perpendicular to the first direction, the line connecting the first end (2111) and the second end (2112) is L. AB The line connecting the third end (2211) and the fourth end (2212) is L. CD The connecting line L AB The angle between the line L and the plane containing the lamp panel (12) is α, and the line L is... CD The angle between the L and the plane containing the light output port (23) of the module is β. AB and the L CD The included angle is θ, where θ is the angle between the connecting lines L and L. CD With the line L AB The angle between them facing the light output port (23) of the module; The L CD and the L AB The length of L satisfies the following relationship: CD >L AB ; The α, β and θ satisfy the following relationships: α>β, 90°<θ<180°.

5. The optical module according to claim 4, characterized in that, The α, β and θ satisfy: 35°≤α≤55°, 9°≤β≤29°, 105°≤θ≤125°.

6. The optical module according to claim 4, characterized in that, The L CD The projected length of the plane where the light output port (23) of the module is located is L. cd The L AB The projected length L of the plane where the lamp panel (12) is located ab The L cd With the L ab The ratio satisfies: 3≤L cd / L ab ≤4.

7. The optical module according to claim 3, characterized in that, In a plane perpendicular to the first direction, the overall thickness of the optical module is h, and the overall width of the optical module is b; h and b satisfy: 2:4≤h:b≤2:

7.

8. The optical module according to claim 3, characterized in that, The first reflective surface (211) is a plane or a curved surface that is concave in the direction away from the light source assembly (1), and the second reflective surface (221) is a plane or a curved surface that is concave in the direction away from the light source assembly (1).

9. The optical module according to claim 8, characterized in that, The first reflective surface (211) is a concave curved surface in the direction away from the light source assembly (1), from the first end (2111) to the second end (2112), the radius of curvature of the first reflective surface (211) is R1, and R1 satisfies: 3mm≤R1≤150mm; Furthermore, the closer to the second end (2112), the larger the radius of curvature of the first reflective surface (211).

10. The optical module according to claim 9, characterized in that, In a plane perpendicular to the first direction, the profile of the first reflective surface (211) includes a low beam section (2113), a high beam section (2115), and a transition section (2114) connecting the low beam section (2113) and the high beam section (2115); the low beam section (2113) is close to the first end (2111), and the high beam section (2115) is close to the second end (2112); Wherein, the total length of the profile of the first reflective surface (211) is L z ; The length of the near beam segment (2113) is L j The radius of curvature of the near beam segment (2113) is R. j The L z L j and R j Satisfy: 0.1≤L j / L z ≤0.3; the R j ≤10mm; The length of the transition section (2114) is L. g The radius of curvature of the transition segment (2114) is R. g The L z L g and R g Satisfy: 0.5≤L g / L z ≤0.8; the 10mm≤R g ≤50mm; The length of the high beam segment (2115) is L y The radius of curvature of the high beam segment (2115) is R. y The L z L y and R y Satisfy: 0.1≤L y / L z ≤0.2; the 50mm≤R y ≤100mm.

11. The optical module according to claim 9, characterized in that, In a plane perpendicular to the first direction, the profile of the first reflective surface (211) is a parabolic segment; wherein the light-emitting element (11) is located at the focal point of the parabolic segment.

12. The optical module according to any one of claims 9-11, characterized in that, The second reflecting surface (221) is a plane; Alternatively, the second reflective surface (221) is a concave curved surface in the direction away from the light source assembly (1) and the radius of curvature of the second reflective surface (221) is R2, wherein R2 satisfies: 50mm≤R2≤300mm.

13. The optical module according to claim 1, characterized in that, The reflective assembly includes a first reflective portion (21) and a second reflective portion (22); wherein the first reflective portion (21) is formed with a first reflective surface (211), the second reflective portion (22) is formed with a second reflective surface (221), and the first reflective portion (21) and the second reflective portion (22) are integrally formed or independent of each other.

14. The optical module according to claim 13, characterized in that, At least one of the lamp panel (12), the first reflector (21) and the second reflector (22) is movably disposed; the movability includes at least one of rotation, sliding or swinging.

15. The optical module according to claim 1, characterized in that, The first reflective surface (211) is made of mirror material, and the second reflective surface (221) is made of frosted material; or, the first reflective surface (211) is made of frosted material, and the second reflective surface (221) is made of mirror material; or, both the first reflective surface (211) and the second reflective surface (221) are made of mirror material; or, both the first reflective surface (211) and the second reflective surface (221) are made of frosted material.

16. A lamp, characterized in that, The device includes a housing assembly and an optical module as described in any one of claims 1-15; an optical space (33) is formed inside the housing assembly, a light-emitting part (323) is provided on one side of the housing assembly, the optical module is disposed in the optical space (33), and the light emitted by the optical module is emitted through the light-emitting part (323).

17. The lamp according to claim 16, characterized in that, The light-emitting part (323) of the lamp includes a light-transmitting area disposed on one side of the housing assembly; or, the light-emitting part (323) of the lamp includes a light-emitting port opened on one side of the housing assembly; The light-emitting part (323) of the lamp and the light-emitting port (23) of the module are respectively provided.

18. The lamp according to claim 17, characterized in that, A mounting structure (321) is also provided on one side of the light-emitting part (323) of the lamp. The mounting structure (321) is used to mount the lamp plate (12). A shielding structure (322) is provided between the mounting structure (321) and the light-emitting part (323) of the lamp.

19. The lamp according to claim 17, characterized in that, The light outlet is provided with a light-emitting plate, and the surface of the light-emitting plate is provided with a texture, microstructure or coating; Alternatively, the surface of the light-transmitting area may be provided with a textured surface, microstructure, or coating.

20. The lamp according to claim 16, characterized in that, The light-emitting part (323) of the lamp is provided with a light-shielding structure (34) on the side that is away from the light-emitting element (11).

21. The lamp according to claim 16, characterized in that, It also includes a heat sink, which is disposed adjacent to the light source assembly (1) and has a thermal conductivity relationship with the light source assembly (1).

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