An optical module and a lamp with adjustable polarization

Abstract

The present invention discloses an optical module with adjustable polarization, which can be generically assembled in a lamp body assembly. The optical module with adjustable polarization includes a polarization lens body, and a hollow first cylinder and a second cylinder. One end of the first cylinder is detachably and rotatably connected to one end of the second cylinder. The polarization lens body is rotatably arranged in the inner cavity of the first cylinder. The polarization lens body is provided with a guiding and positioning portion at the edge perpendicular to the rotation axis. The second cylinder is provided with an inclined guiding slot hole, and the guiding and positioning portion is slidably connected with the guiding slot hole. The second cylinder is provided with a first engaging portion for detachably and rotatably connecting with the lamp body assembly. The present invention utilizes the first engaging portion on the second cylinder to assemble the optical module on the lamp body assembly, so that by rotating the first cylinder and the second cylinder, the polarization lens body can be deflected and rotated, enabling the light to be deflected by the polarization lens body and changing the irradiation angle, thereby realizing the adjustment of polarization in a limited space and completing the change of optical effects.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting, and in particular to an optical module and a lamp with adjustable polarized light. Background Art

[0002] Currently, when adjusting the polarized light wall-washing angle of traditional conventional lamps, most of them achieve the purpose of angle inclination by directly adjusting the inclination of the entire head of the lamp. However, for this traditional structure, on the one hand, the structure is relatively complex, and on the other hand, it is also easily restricted by the installation space of the lamp, and the heat dissipation head of the lamp cannot be made large. Therefore, it is difficult to meet the requirements of the current market environment that pursues personalization and freedom. Summary of the Invention

[0003] The purpose of the present invention is to provide an optical module and a lamp with adjustable polarized light. By rotating the optical module in a limited space, the polarized light wall-washing angle of the lamp can be changed, and the lamp itself does not need to make any deflection actions, solving the problem that the prior art needs to adjust the inclination of the entire head of the lamp to achieve the adjustment of the polarized light wall-washing angle.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] In the first aspect, the present invention provides an optical module with adjustable polarized light, which can be generically assembled in a lamp body assembly. The optical module with adjustable polarized light includes a polarized light lens body, and a hollow first cylinder and a second cylinder. One end of the first cylinder is detachably and rotatably connected to one end of the second cylinder. The polarized light lens body is rotatably arranged in the inner cavity of the first cylinder. The polarized light lens body is provided with a guiding and positioning part at the edge perpendicular to the rotation axis. The second cylinder is provided with an inclined guiding slot hole. The guiding and positioning part is slidably and cooperatively connected with the guiding slot hole. The second cylinder is provided with a first engaging part for detachably and rotatably connecting with the lamp body assembly.

[0006] Further, two rotating shaft parts are symmetrically arranged on the polarized light lens body. The first cylinder is provided with shaft holes rotatably connected to the rotating shaft parts. The axis of the shaft hole is perpendicular to and intersects with the central axis of the first cylinder. The polarized light lens body is assembled on the shaft holes of the first cylinder by using the rotating shaft parts, so that the polarized light lens body can rotate synchronously with the first cylinder on the horizontal plane, and can flip by a certain angle around the rotation axis of the polarized light lens body on the vertical plane.

[0007] Further, the guiding and positioning part is a cylinder with an arc-shaped end. In this way, when installing the polarized light lens body, the guiding and positioning part can be smoothly inserted into the guiding slot hole to achieve rapid assembly.

[0008] Furthermore, the polarizing lens body is disc-shaped. The polarizing lens body includes a first refracting surface close to the first cylinder and a second refracting surface close to the second cylinder. The surface of the first refracting surface is evenly distributed with quadrangular pyramids, and the surface of the second refracting surface is evenly distributed with bulge-shaped protrusions. The microstructure on the first refracting surface and the second refracting surface is used to refract and change the light direction, so as to achieve the purpose of uniform light emission.

[0009] Furthermore, a first annular slot is provided on the inner wall of the first cylinder, and the second cylinder is provided with at least one clamping portion that can be slidably clamped and matched with the first annular slot. The clamping portion is used to be clamped and matched with the first annular slot, so as to assemble the second cylinder and the first cylinder together. And because the clamping portion can slide along the first annular slot, the first cylinder and the second cylinder can rotate relative to each other without limitation under the drive of an external force.

[0010] Furthermore, a first inclined surface is provided on the edge of the first annular slot, and the clamping portion is provided with a second inclined surface adapted to the first inclined surface. In this way, when assembling or separating the second cylinder and the first cylinder, it can be more labor-saving. At the same time, it can also avoid causing greater damage to the first cylinder or the second cylinder, thereby improving the service life.

[0011] Furthermore, a limiting portion is provided at one end of the second cylinder close to the first cylinder, and the limiting portion abuts against the first cylinder. When installing the first cylinder, the limiting portion plays a role of limiting and positioning. After the first cylinder and the second cylinder are clamped and assembled, the limiting portion abuts against the first cylinder.

[0012] Preferably, the limiting portion is a single convex block, multiple spaced convex blocks, or an annular convex ring.

[0013] Furthermore, an arc-shaped plate extending towards the inside of the first cylinder is provided at one end of the second cylinder close to the first cylinder. The arc-shaped plate is located between the polarizing lens body and the first cylinder, and the guiding groove hole is provided on the arc-shaped plate. By providing the guiding groove hole on the arc-shaped plate extending towards the inside of the first cylinder, it is not only convenient to form the guiding groove hole, but also convenient to assemble the guiding positioning portion on the polarizing lens body with the guiding groove hole.

[0014] Furthermore, a scale mark is provided on the first cylinder and / or the second cylinder. In this way, the corresponding polarization angle and the light irradiation direction can be understood through the position of the scale mark.

[0015] Further, the first engaging portion is disposed on the outer wall of the second cylinder, and the first engaging portion is a second annular card slot or at least one snap. Through the cooperation structure of the snap or the annular card slot, the second cylinder is assembled with the lamp body assembly, and the entire optical module can rotate relative to the lamp body assembly without limitation under the drive of an external force, so as to quickly and labor-savingly change the light irradiation direction.

[0016] In a second aspect, the present invention provides a lamp, including a light-emitting module, a condenser lens body, the above-mentioned adjustable polarization optical module, and a lamp body assembly. The light-emitting module is disposed on the lamp body assembly, the condenser lens body is disposed below the light-emitting module, and the lamp body assembly is provided with a third cylinder on the outer periphery of the light-emitting module, and a second engaging portion corresponding to the first engaging portion is rotatably connected to the third cylinder. By using the rotational connection between the first engaging portion and the second engaging portion, the optical module can be assembled on the lamp body assembly. In this way, by rotating the first cylinder and the second cylinder to change the position of the polarization lens body, the light generated by the light-emitting module can be deflected and the irradiation angle can be changed after being converged by the condenser lens body, so as to adjust the polarization within a limited space and complete the change of the optical effect.

[0017] Further, the second engaging portion is disposed on the inner wall of the third cylinder, and the second engaging portion is a second annular card slot or at least one snap. Through the cooperation structure of the snap or the annular card slot, the second cylinder is assembled with the lamp body assembly, and the entire optical module can rotate relative to the lamp body assembly without limitation under the drive of an external force, so as to quickly and labor-savingly change the light irradiation direction.

[0018] Compared with the prior art, the present invention provides an adjustable polarization optical module and a lamp, having the following beneficial effects:

[0019] The present invention utilizes the first engaging portion on the second cylinder to assemble the optical module on the lamp body assembly. Thus, by rotating the first cylinder and the second cylinder, the polarization lens body can be deflected and rotated, so that the light is deflected by the polarization lens body and the irradiation angle is changed, thereby realizing the adjustment of polarization within a limited space and completing the change of the optical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0021] Figure 1Schematic three-dimensional structure diagram of the optical module of the present invention;

[0022] Figure 2 Schematic semi-sectional structure diagram of the optical module of the present invention;

[0023] Figure 3 Schematic assembly diagram of the optical module of the present invention;

[0024] Figure 4 Schematic three-dimensional structure diagram of the polarizing lens body of the present invention;

[0025] Figure 5 Schematic three-dimensional structure diagram of the lamp equipped with the optical module of the present invention;

[0026] Figure 6 Schematic assembly diagram of the optical module and the lamp of the present invention;

[0027] Figure 7 Schematic semi-sectional structure diagram of the lamp equipped with the optical module of the present invention;

[0028] Figure 8 is Figure 7 Schematic sectional view along the A-A direction in

[0029] Figure 9 Schematic diagram of adjusting the polarization and irradiation direction by the optical module of the present invention;

[0030] Figure 10 Schematic three-dimensional structure diagram of the lamp equipped with another structure of the optical module of the present invention.

[0031] Reference numerals: 10, optical module; 1, first cylinder; 11, shaft hole; 12, first annular clamping groove; 13, first inclined surface; 2, second cylinder; 21, first joint; 22, guiding groove hole; 23, clamping portion; 24, second inclined surface; 25, limiting portion; 26, arc plate; 3, polarizing lens body; 31, guiding and positioning portion; 32, rotating shaft portion; 33, first refracting surface; 34, second refracting surface; 4, scale mark; 20, light-emitting module; 30, condenser lens body; 40, lamp body assembly; 41, third cylinder; 411, second joint; 42, light source fixing plate; 43, radiator; 44, cover; 45, power cord. Detailed Description of the Invention

[0032] The technical solutions of the present invention will be clearly and completely described below through detailed embodiments in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0035] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Please refer to Figures 1 to 10, an embodiment of the present invention provides an optical module 10 with adjustable polarization, which can be commonly assembled in a lamp body assembly 40 of various lamps that require adjusting the polarization angle and irradiation direction. Among them, the optical module 10 with adjustable polarization includes a polarization lens body 3, and a first cylindrical hollow barrel 1 and a second barrel 2. The first barrel 1 and the second barrel 2 are used to jointly assemble the polarization lens body 3. One end of the first barrel 1 is detachably and rotatably connected to one end of the second barrel 2. The polarization lens body 3 is rotatably arranged in the inner cavity of the first barrel 1. The polarization lens body 3 is provided with a guiding and positioning portion 31 at the edge perpendicular to the rotation axis. The second barrel 2 is provided with an inclined guiding groove hole 22. The guiding and positioning portion 31 is slidably connected with the guiding groove hole 22. The second barrel 2 is provided with a first engaging portion 21 for detachably and rotatably connecting with the lamp body assembly 40. By using the first engaging portion 21 on the second barrel 2, the optical module 10 can be assembled on the lamp body assembly 40. Thus, by simply rotating the first barrel 1 and the second barrel 2, the polarization lens body 3 can be deflected and rotated, so that the light is deflected by the polarization lens body 3 and the irradiation angle is changed, thereby realizing the adjustment of polarization within a limited space and completing the change of the optical effect without adjusting or flipping the lamp body assembly 40.

[0037] Reference Figure 3 and Figure 4 , two stepped shafts are symmetrically arranged on the polarization lens body 3 as the rotating shaft portions 32. The first barrel 1 is provided with shaft holes 11 rotatably connected with the rotating shaft portions 32. The axis of the shaft holes 11 is perpendicular to and intersects the central axis of the first barrel 1. The polarization lens body 3 is assembled on the shaft holes 11 of the first barrel 1 by using the rotating shaft portions 32, so that the polarization lens body 3 can rotate synchronously with the first barrel 1 on the horizontal plane, and can flip by a certain angle around the rotation axis of the polarization lens body 3 on the vertical plane, thereby realizing the polarization adjustment.

[0038] Reference Figure 4 , the guiding and positioning portion 31 is a cylinder with an arc surface at the end. In this way, when installing the polarization lens body 3, the guiding and positioning portion 31 can be smoothly inserted into the guiding groove hole 22, thereby realizing rapid assembly.

[0039] Reference Figure 3 and Figure 4 , the polarization lens body 3 is in a disc shape. The polarization lens body 3 includes a first refracting surface 33 close to the first barrel 1 and a second refracting surface 34 close to the second barrel 2. Four-sided pyramids are evenly distributed on the surface of the first refracting surface 33, and bulging protrusions are evenly distributed on the surface of the second refracting surface 34. Through the microstructures such as these four-sided pyramids and bulging protrusions on the first refracting surface 33 and the second refracting surface 34, the direction of the light is refracted and changed to achieve the purpose of uniform light emission.

[0040] Preferably, the diameter of the polarizing lens body 3 is smaller than the inner diameter of the second cylinder 2, and the inner diameter of the first cylinder 1 is larger than the outer diameter of the second cylinder 2.

[0041] The polarizing lens body 3 can be made of glass or transparent plastic with a high light transmittance, such as materials like PC and PMMA.

[0042] Reference Figures 1 to 3 , in some embodiments of the present embodiment, the first cylinder 1 and the second cylinder 2 are rotatably connected by a snap - and - groove method.

[0043] The inner wall of the first cylinder 1 is provided with a first annular groove 12, and the second cylinder 2 is provided with a clamping portion 23 that can be slidably clamped and matched with the first annular groove 12. By using the clamping portion 23 to be clamped and matched with the first annular groove 12, the second cylinder 2 and the first cylinder 1 can be assembled together, which can position and fix the first cylinder 1. And because the clamping portion 23 can slide along the first annular groove 12 around the central axis of the first cylinder 1, the first cylinder 1 and the second cylinder 2 can rotate relative to each other without restriction under the drive of an external force. When separation is needed, the first cylinder 1 can be directly pulled to remove the first cylinder 1 from the second cylinder 2. Preferably, the clamping portion 23 is a snap.

[0044] In other embodiments, reference Figure 3 , the clamping portion 23 can be multiple, such as multiple snaps are arranged at intervals along the circumferential direction of the second cylinder 2. In this way, multiple clamping portions 23 can form a relatively balanced positioning and clamping fixation for all aspects of the first cylinder 1, so that the first cylinder 1 and the second cylinder 2 are more stable during relative rotation and avoid tilting.

[0045] Of course, multiple clamping portions 23 can also be connected to each other. For example, multiple clamping portions 23 form an annular snap ring on the second cylinder 2. In this way, the setting is more convenient, and the clamping installation and rotational movement between the first cylinder 1 and the second cylinder 2 are more stable.

[0046] Reference Figure 2 , as a preferred embodiment of the present embodiment, both the upper edge and the lower edge of the first annular groove 12 are provided with a first inclined surface 13, and the first inclined surface 13 inclines inward along the concave direction of the first annular groove 12. The clamping portion 23 is provided with a second inclined surface 24 adapted to the first inclined surface 13 on the side close to the first annular groove 12. In this way, when assembling or separating the second cylinder 2 and the first cylinder 1, it can be more labor - saving. At the same time, it can also avoid causing greater damage to the first cylinder 1 or the second cylinder 2, thereby improving the service life. Preferably, the inclination angles of the first inclined surface 13 and the second inclined surface 24 are set to 40 degrees to 70 degrees, and when the inclination angle is set to 50 degrees, it is better.

[0047] In some embodiments of the present embodiment, a limiting portion 25 is provided at one end of the second cylinder 2 close to the first cylinder 1, and the limiting portion 25 abuts against the first cylinder 1. Specifically, the limiting portion 25 is a single bump. When installing the first cylinder 1, the limiting portion 25 plays a role in limiting and positioning. After the first cylinder 1 and the second cylinder 2 are snap-fitted, the limiting portion 25 abuts against the first cylinder 1.

[0048] In other embodiments, the limiting portion 25 may also be a plurality of bumps distributed at intervals along the circumferential direction of the second cylinder 2. In this way, the plurality of limiting portions 25 can form a relatively balanced positioning for each orientation of the first cylinder 1, facilitating snap-fitting installation.

[0049] Reference Figures 1 to 3 , as a preferred embodiment of the present embodiment, the limiting portion 25 may also be an annular convex ring provided on the outer wall of the second cylinder 2, which is more convenient to set up in this way.

[0050] Reference Figures 1 to 3 , in some embodiments of the present embodiment, an arc-shaped plate 26 extending towards the inside of the first cylinder 1 is provided at one end of the second cylinder 2 close to the first cylinder 1. The arc-shaped plate 26 is located between the polarizing lens body 3 and the first cylinder 1, and the guiding groove hole 22 is provided on the arc-shaped plate 26. By providing the guiding groove hole 22 on the arc-shaped plate 26 extending towards the inside of the first cylinder 1, it is not only convenient to form the guiding groove hole 26, but also convenient to assemble the guiding positioning portion 31 on the polarizing lens body 3 with the guiding groove hole 22.

[0051] Reference Figure 10 , in some embodiments of the present embodiment, scale marks 4 are provided on the first cylinder 1 and the second cylinder 2. Among them, a set of scale marks on the first cylinder 1 shows the angle by which the polarizing lens body 3 rotates around its own rotation axis (i.e., the polarization angle on the vertical plane), and a set of scale marks on the second cylinder 2 shows the angle by which the entire optical module 10 rotates around the central axis of the second cylinder 2 (i.e., the angle of rotation of the light irradiation on the horizontal plane). In this way, the corresponding polarization angle and the rotation direction of the light irradiation can be understood through the positions of the scale marks.

[0052] In other embodiments, a set of scale marks 4 may also be provided only on the first cylinder 1 or the second cylinder 2, so as to facilitate understanding of the polarization angle. Another set of scale marks 4 is provided on the lamp body assembly 40 to facilitate understanding of the rotation direction of the light irradiation.

[0053] Reference Figures 1 to 3, in some embodiments of the present embodiment, the first engaging portion 21 is provided on the outer wall of the second cylinder 2. Specifically, the first engaging portion 21 is a second annular clamping groove. In this way, only by providing some snap or snap ring structures on the lamp body assembly 40 that cooperate with the second annular clamping groove, the second cylinder 2 can be assembled with the lamp body assembly 40, and the entire optical module 10 can rotate relative to the lamp body assembly 40 without limitation under the drive of an external force, so as to quickly and labor - savingly change the light irradiation direction.

[0054] In other embodiments, the first engaging portion 21 can also be provided on the inner wall of the second cylinder 2, that is, a second annular clamping groove is provided on the inner wall of the second cylinder 2. Correspondingly, by providing some snap or snap ring structures on the lamp body assembly 40 that cooperate with the second annular clamping groove, the optical module 10 can be rotatably connected to the lamp body assembly 40.

[0055] In other embodiments, the first engaging portion 21 on the second cylinder 2 and the snap or snap ring structure on the lamp body assembly 40 can also be set by exchanging positions, that is, the first engaging portion 21 on the second cylinder 2 is a snap or snap ring structure, and a suitable second annular clamping groove is provided on the lamp body assembly 40. Similarly, the optical module 10 can be rotatably connected to the lamp body assembly 40.

[0056] Reference Figures 5 to 9 , the embodiment of the present invention also discloses a lamp, including a light - emitting module 20, a condenser lens body 30, the above - mentioned adjustable - polarization optical module 10, and a lamp body assembly 40. The light - emitting module 20 is detachably provided on the lamp body assembly 40 through a light - source fixing plate 42. The condenser lens body 30 is snap - connected to the light - source fixing plate 42 below the light - emitting module 20. The lamp body assembly 40 is provided with a third cylinder 41 on the outer periphery of the light - emitting module 20. The third cylinder 41 is connected to the light - source fixing plate 42 by screws, and a second engaging portion 411 corresponding to the first engaging portion 21 is provided on the third cylinder 41. By using the rotational connection between the first engaging portion 21 and the second engaging portion 411, the optical module 10 can be rotatably assembled on the lamp body assembly 40. In this way, by rotating the first cylinder 1 and the second cylinder 2 to change the position of the polarization - converting lens body 3, the light generated by the light - emitting module 20 can be deflected and the irradiation angle can be changed by the polarization - converting lens body 3 after being converged by the condenser lens body 30, so as to adjust the polarization within a limited space and complete the change of the optical effect.

[0057] Specifically, the second engaging portion 411 is provided on the inner wall of the third cylinder 41. The second engaging portion 411 is a plurality of buckles adapted to the second annular card slots provided on the outer wall of the second cylinder 2. Through the matching structure of the buckles and the annular card slots, the second cylinder 2 is assembled with the lamp body assembly 40, and the entire optical module can rotate relative to the lamp body assembly 40 without restriction under the drive of an external force, so as to quickly and labor-savingly change the light irradiation direction.

[0058] It should be noted that the lamp provided by the embodiment of the present invention further includes conventional electrical structure components such as a radiator 43, a cover 44, a power cord 45, etc.

[0059] The lamp provided by the embodiment of the present invention can be various types of lighting lamps such as downlights, recessed lights, buried lights, wall lights, etc. that have requirements for adjusting the polarization angle and irradiation angle.

[0060] Reference Figure 2 、 Figure 5 、 Figure 6 and Figure 9 , during use, select a specific type of lamp, hold the optical module 10 by hand and extend it into the cover 44, and snap the first engaging portion 21 on the second cylinder 2 with the second engaging portion 411 on the lamp body assembly 40, so that the optical module 10 can be rotatably connected to the lamp body assembly 40 of the lamp. According to the requirements of polarization and irradiation angle, rotate the first cylinder 1 so that the polarization lens body 3 can rotate synchronously with the first cylinder 1 on the horizontal plane. At the same time, due to the guiding action of the guiding and positioning portion 31 on the polarization lens body 3 in the guiding slot hole 22 on the second cylinder 2, the polarization lens body 3 also rotates by a certain angle relative to its rotation axis on the vertical plane, so as to realize polarization adjustment by a certain angle on the vertical plane. Then, rotate the second cylinder 2 so that the entire optical module 10 rotates, so as to realize the adjustment of the irradiation direction by a certain angle on the horizontal plane.

[0061] The above are only some preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0062] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An optical module with adjustable polarization, which can be generically arranged in a lamp body assembly (40), characterized in that: It includes a polarizing lens body (3), a hollow first cylinder (1) and a second cylinder (2). One end of the first cylinder (1) is detachably and rotatably connected to one end of the second cylinder (2); the polarizing lens body (3) is rotatably arranged in the inner cavity of the first cylinder (1). Two rotating shaft parts (32) are symmetrically arranged on the polarizing lens body (3). The first cylinder (1) is provided with a shaft hole (11) rotatably connected to the rotating shaft part (32). The axis of the shaft hole (11) is perpendicular to and intersects the central axis of the first cylinder (1); the polarizing lens body (3) is provided with a guiding and positioning part (31) at the edge perpendicular to the rotation axis of the rotating shaft part (32). The second cylinder (2) is provided with an inclined guiding slot hole (22). The guiding and positioning part (31) is slidably and cooperatively connected with the guiding slot hole (22); the second cylinder (2) is provided with a first engaging part (21) for detachably and rotatably connecting with the lamp body assembly (40).

2. The optical module with adjustable polarization according to claim 1, characterized in that: The guiding and positioning part (31) is a cylinder with an arc surface at the end.

3. The optical module with adjustable polarization according to claim 1, characterized in that: The polarizing lens body (3) is in a disc shape. The polarizing lens body (3) includes a first refracting surface (33) close to the first cylinder (1) and a second refracting surface (34) close to the second cylinder (2). Four-sided pyramids are evenly distributed on the surface of the first refracting surface (33), and bulge-shaped protrusions are evenly distributed on the surface of the second refracting surface (34).

4. The optical module with adjustable polarization according to claim 1, wherein: The inner wall of the first cylinder (1) is provided with a first annular clamping groove (12). The second cylinder (2) is provided with at least one clamping part (23) that can be slidably clamped and cooperated with the first annular clamping groove (12).

5. The adjustable polarization optical module according to claim 4, wherein: A first inclined surface (13) is arranged at the edge of the first annular clamping groove (12). The clamping part (23) is provided with a second inclined surface (24) adapted to the first inclined surface (13).

6. The optical module with adjustable polarization according to claim 1, wherein: The second cylinder (2) is provided with a limiting part (25) at one end close to the first cylinder (1). The limiting part (25) abuts against the first cylinder (1).

7. The optical module with adjustable polarization according to claim 6, characterized in that: The limiting part (25) is a single convex block, a plurality of spaced convex blocks, or an annular convex ring.

8. The optical module with adjustable polarization according to claim 1, characterized in that: The second cylinder (2) is provided with an arc-shaped plate (26) extending towards the inside of the first cylinder (1) at one end close to the first cylinder (1). The arc-shaped plate (26) is located between the polarizing lens body (3) and the first cylinder (1). The guiding slot hole (22) is arranged on the arc-shaped plate (26).

9. The optical module with adjustable polarization according to claim 1, wherein: Scale marks are provided on the first cylinder (1) and / or the second cylinder (2).

10. The optical module with adjustable polarization according to claim 1, characterized in that: The first engaging part (21) is arranged on the outer wall of the second cylinder (2). The first engaging part (21) is a second annular clamping groove or at least one buckle.

11. A lighting fixture, characterized in that: It includes a light-emitting module (20), a condenser lens body (30), the optical module (10) with adjustable polarization and the lamp body assembly (40) according to any one of claims 1 to 10, the light-emitting module (20) is arranged on the lamp body assembly (40), the condenser lens body (30) is arranged below the light-emitting module (20), a third cylinder body (41) is arranged on the outer periphery of the light-emitting module (20) of the lamp body assembly (40), and a second engaging portion (411) rotatably connected to the first engaging portion (21) is correspondingly arranged on the third cylinder body (41).

12. The luminaire according to claim 11, characterized in that: The second engaging portion (411) is arranged on the inner wall of the third cylinder body (41); when the first engaging portion (21) is a second annular clamping groove, the second engaging portion (411) is at least one buckle cooperating with the second annular clamping groove; or, when the first engaging portion (21) is at least one buckle, the second engaging portion (411) is a second annular clamping groove cooperating with the buckle.

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