CN112254047A

CN112254047A - Optical module and lamps and lanterns of adjustable polarisation

Info

Publication number: CN112254047A
Application number: CN202011342945.3A
Authority: CN
Inventors: 李小熊
Original assignee: GUANGZHOU XIONGZHI LIGHTING INDUSTRIAL CO LTD
Current assignee: GUANGZHOU XIONGZHI LIGHTING INDUSTRIAL CO LTD
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-01-22
Anticipated expiration: 2040-11-26

Abstract

The invention discloses an optical module with adjustable polarization, which can be assembled in a lamp body assembly. The optical module with adjustable polarization includes a polarized lens body, a hollow first cylinder and a second cylinder. One end of a cylindrical body is detachably connected to one end of the second cylindrical body, and the polarized lens body is rotatably arranged in the inner cavity of the first cylindrical body. The body is provided with an inclined guide slot hole, the guide positioning part is slidably connected with the guide slot hole, and the second cylinder body is provided with a first joint part for detachable and rotatable connection with the lamp body assembly. In the present invention, the optical module can be assembled on the lamp body assembly by using the first joint on the second cylinder, so that by rotating the first cylinder and the second cylinder, the polarized lens body can be deflected and rotated, so that the light It is deflected by the polarizing lens body and changes the irradiation angle, so as to adjust the polarized light in a limited space and complete the change of the optical effect.

Description

Optical module and lamps and lanterns of adjustable polarisation

Technical Field

The invention relates to the technical field of illumination, in particular to an optical module capable of adjusting polarization and a lamp.

Background

At present, when the wall angle is washed in the traditional conventional lamp for adjusting the polarized light, the purpose of angle inclination is mostly achieved by directly adjusting the inclination of the whole head of the lamp. However, such a conventional structure is relatively complex on one hand, and on the other hand, is also easily limited 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 market environment demand of the present pursuit of personalization and freedom.

Disclosure of Invention

The invention aims to provide an optical module and a lamp with adjustable polarized light, which can change the wall-washing angle of the lamp by rotating the optical module in a limited space without any deflection action of the lamp, and solve the problem that the adjustment of the wall-washing angle of the polarized light in the prior art needs to adjust the inclination of the whole head of the lamp.

In order to achieve the purpose, the invention adopts the following technical scheme:

in a first aspect, the invention provides an adjustable polarization optical module, which can be assembled in a lamp body assembly in a universal manner, and includes a polarization lens body, a hollow first cylinder and a hollow second cylinder, wherein one end of the first cylinder is detachably and rotatably connected with one end of the second cylinder, the polarization lens body is rotatably arranged in an inner cavity of the first cylinder, the polarization lens body is provided with a guide positioning portion at the edge perpendicular to a rotation axis, the second cylinder is provided with an inclined guide slot hole, the guide positioning portion is connected with the guide slot hole in a sliding fit manner, and the second cylinder is provided with a first joint portion for detachably and rotatably connecting with the lamp body assembly.

Further, two rotating shaft parts are symmetrically arranged on the polarized lens body, the first barrel body is provided with a shaft hole which is connected with the rotating shaft parts in a rotating mode, and the axis of the shaft hole is perpendicular to the central axis of the first barrel body. The polarized lens body is fitted in the shaft hole of the first barrel by the rotating shaft portion, so that the polarized lens body can be rotated in synchronization with the first barrel in the horizontal plane, and can be turned over at a certain angle around the rotation axis of the polarized lens body in the vertical plane.

Further, the guide positioning part is a cylinder with an arc surface at the end part, so that the guide positioning part can be smoothly inserted into the guide groove hole when the polarized lens body is installed, and quick assembly is realized.

Further, the polarized lens body is discoid, the polarized lens body is including being close to the first refracting surface of first barrel and being close to the second refracting surface of second barrel, the surperficial evenly distributed of first refracting surface is provided with the pyramid, the surperficial evenly distributed of second refracting surface is equipped with bulge form arch. The light direction is changed through the refraction of the microstructures on the first refraction surface and the second refraction surface, and the purpose of uniform light emission is achieved.

Further, the inner wall of first barrel is equipped with first ring groove, the second barrel be equipped with at least one with first ring groove slidable joint complex joint portion. Utilize joint portion and first ring groove to carry out the joint cooperation to be in the same place the second barrel with first barrel assembly, and because joint portion can slide along first ring groove, make first barrel and second barrel relatively rotate without restriction under external force drive.

Further, first ring groove's border is equipped with first inclined plane, joint portion be equipped with the second inclined plane of first inclined plane adaptation, like this, when assembling or separating second barrel and first barrel, can be more laborsaving, simultaneously, also can avoid causing great damage to first barrel or second barrel to improve life.

Furthermore, the second barrel is provided with spacing portion in the one end that is close to first barrel, spacing portion with first barrel butt. When installing first barrel, spacing portion plays spacing and the effect of location, accomplishes the joint assembly back with first barrel and second barrel, and spacing portion butt first barrel.

Preferably, the limiting part is a single bump, a plurality of bumps distributed at intervals, or an annular convex ring.

Furthermore, an arc-shaped plate extending towards the inside of the first cylinder is arranged at one end, close to the first cylinder, of the second cylinder, the arc-shaped plate is located between the polarized lens body and the first cylinder, and the guide slot hole is formed in the arc-shaped plate. The guide slot is arranged on the arc-shaped plate extending towards the inside of the first barrel, so that the guide slot is convenient to form, and the guide positioning part on the polarized lens body is convenient to assemble with the guide slot.

Furthermore, the first cylinder and/or the second cylinder are/is provided with scale marks. Therefore, the corresponding polarization angle and the light irradiation direction can be known through the position of the scale mark.

Further, the first joint part is arranged on the outer wall of the second cylinder body, and the first joint part is a second annular clamping groove or at least one clamping buckle. Through buckle or ring groove's cooperation structure to be in the same place the second barrel with lamp body component assembly, and make whole optical module can not restrict relative lamp body component and take place to rotate under the exogenic drive, thereby change light fast laborsavingly and shine the direction.

In a second aspect, the invention provides a lamp, which includes a light emitting module, a condensing lens, the above-mentioned optical module capable of adjusting polarization, and a lamp body assembly, wherein the light emitting module is disposed on the lamp body assembly, the condensing lens is disposed below the light emitting module, the lamp body assembly is provided with a third cylinder on the periphery of the light emitting module, and the third cylinder is correspondingly provided with a second joint rotatably connected with the first joint. Utilize the rotation of first joint portion and second joint portion to be connected, can assemble optical module on lamp body component, so, change the position of the polarized lens body through rotatory first barrel and second barrel for the light that light emitting module produced can be deflected and change the angle of illumination by the polarized lens body after the gathering of the polarized lens body, thereby realizes adjusting the polarisation in limited space, accomplishes the change of optical effect.

Further, the second joint portion is arranged on the inner wall of the third cylinder, and the second joint portion is a second annular clamping groove or at least one clamping buckle. Through buckle or ring groove's cooperation structure to be in the same place the second barrel with lamp body component assembly, and make whole optical module can not restrict relative lamp body component and take place to rotate under the exogenic drive, thereby change light fast laborsavingly and shine the direction.

Compared with the prior art, the invention provides an optical module and a lamp with adjustable polarization, which have the following beneficial effects:

the optical module can be assembled on the lamp body assembly by utilizing the first joint part on the second cylinder, so that the polarized lens body can deflect and rotate by rotating the first cylinder and the second cylinder, light rays are deflected by the polarized lens body and the irradiation angle is changed, polarized light is adjusted in a limited space, and the change of the optical effect is completed.

Drawings

In order 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 described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic perspective view of an optical module according to the present invention;

FIG. 2 is a schematic diagram of a half-sectional structure of an optical module according to the present invention;

FIG. 3 is an assembly view of the optical module of the present invention;

FIG. 4 is a schematic perspective view of a polarized lens body according to the present invention;

FIG. 5 is a schematic perspective view of a lamp equipped with an optical module according to the present invention;

FIG. 6 is a schematic view of an optical module and a lamp according to the present invention;

FIG. 7 is a schematic diagram of a half-sectional structure of a lamp equipped with an optical module according to the present invention;

FIG. 8 is a schematic sectional view taken along the line A-A in FIG. 7;

FIG. 9 is a schematic view of the present invention with optical modules for adjusting polarization and illumination directions;

FIG. 10 is a schematic perspective view of a lamp equipped with an optical module of another structure according to the present invention.

Reference numerals: 10. an optical module; 1. a first cylinder; 11. a shaft hole; 12. a first ring-shaped card slot; 13. a first inclined plane; 2. a second cylinder; 21. a first coupling portion; 22. a guide slot hole; 23. a clamping part; 24. a second inclined plane; 25. a limiting part; 26. an arc-shaped plate; 3. a polarized lens body; 31. a guiding and positioning part; 32. a rotating shaft part; 33. a first refractive surface; 34. a second refraction surface; 4. scale marks; 20. a light emitting module; 30. a condensing lens body; 40. a lamp body assembly; 41. a third cylinder; 411. a second engaging portion; 42. a light source fixing plate; 43. a heat sink; 44. a cover body; 45. a power line.

Detailed Description

The technical solutions of the present invention will be described clearly and completely in the following detailed description of embodiments thereof, which is to be understood as being illustrative only and not restrictive in all respects. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 10, an embodiment of the invention provides an optical module 10 capable of adjusting polarization, which can be disposed in a lamp body assembly 40 of various lamps with requirements for adjusting polarization angle and illumination direction. The optical module 10 capable of adjusting polarization comprises a polarized lens body 3, a first cylindrical body 1 and a second cylindrical body 2 which are cylindrical and hollow. The first cylinder 1 and the second cylinder 2 are used to collectively assemble the polarizing lens body 3. One end of the first cylinder 1 is detachably and rotatably connected with one end of the second cylinder 2, the polarized lens 3 is rotatably arranged in the inner cavity of the first cylinder 1, the polarized lens 3 is provided with a guiding and positioning part 31 at the edge perpendicular to the rotation axis, the second cylinder 2 is provided with an inclined guiding slotted hole 22, the guiding and positioning part 31 is connected with the guiding slotted hole 22 in a sliding fit manner, and the second cylinder 2 is provided with a first joint part 21 which is detachably and rotatably connected with the lamp body assembly 40. Utilize first joint 21 on the second barrel 2 can assemble optical module 10 on lamp body component 40 to only need through rotatory first barrel 1 and second barrel 2, can make the polarized lens body 3 take place to deflect and rotate, make light by the polarized lens body 3 deflection and change the irradiation angle, thereby realize adjusting the polarisation in limited space, accomplish the change of optical effect, and need not to adjust upset lamp body component 40.

Referring to fig. 3 and 4, two stepped shafts are symmetrically arranged on the polarized lens body 3 as the rotating shaft portion 32, the first barrel 1 is provided with a shaft hole 11 rotatably connected with the rotating shaft portion 32, and the axis of the shaft hole 11 is perpendicular to the central axis of the first barrel 1. The polarized lens body 3 is fitted to the shaft hole 11 of the first cylinder 1 by the rotating shaft portion 32, so that the polarized lens body 3 can rotate synchronously with the first cylinder 1 in the horizontal plane and can be turned over at a certain angle around the rotation axis of the polarized lens body 3 in the vertical plane, thereby realizing polarization adjustment.

Referring to fig. 4, the guide positioning part 31 is a cylinder having an arc surface at the end, so that the guide positioning part 31 can be smoothly inserted into the guide slot hole 22 when the polarized lens body 3 is mounted, thereby achieving quick assembly.

Referring to fig. 3 and 4, the polarized lens body 3 is disc-shaped, the polarized lens body 3 includes a first refraction surface 33 close to the first cylinder 1 and a second refraction surface 34 close to the second cylinder 2, the surface of the first refraction surface 33 is uniformly distributed with four pyramids, and the surface of the second refraction surface 34 is uniformly distributed with bulges. The microstructures such as the pyramid and the bulge on the first refraction surface 33 and the second refraction surface 34 refract and change the light direction, thereby achieving the purpose of uniform light emission.

Preferably, the diameter of the polarized 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.

The polarized lens body 3 may be made of glass, or may be made of transparent plastic with high light transmittance, such as PC, PMMA, and the like.

Referring to fig. 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-fit manner.

The inner wall of the first barrel 1 is provided with a first annular clamping groove 12, and the second barrel 2 is provided with a clamping portion 23 which is in slidable clamping fit with the first annular clamping groove 12. Utilize joint portion 23 and first ring groove 12 to carry out the joint cooperation to with second barrel 2 and first barrel 1 assembly together, can form location and fixed to first barrel 1, and because joint portion 23 can slide around the axis of first barrel 1 along first ring groove 12, make first barrel 1 and second barrel 2 can unrestricted relative rotation under the external force drive. When the separation is needed, the first cylinder 1 can be pulled directly, and the first cylinder 1 can be detached from the second cylinder 2. Preferably, the snap-in portion 23 is a snap.

In other embodiments, referring to fig. 3, the clamping portion 23 can be multiple, for example, a plurality of buckles are arranged at intervals along the circumference of the second cylinder 2, so that the clamping portions 23 can form a balanced positioning and clamping fixation for each direction of the first cylinder 1, thereby making the first cylinder 1 and the second cylinder 2 more stable during relative rotation and avoiding inclination.

Of course, a plurality of joint portions 23 can also be interconnect, for example, make a plurality of joint portions 23 form annular snap ring on second barrel 2, more convenient when setting up like this, and the joint installation and the rotary motion between first barrel 1 and second barrel 2 are more steady.

Referring to fig. 2, as a preferred embodiment of this embodiment, the upper edge and the lower edge of first ring groove 12 are both provided with first inclined plane 13, first inclined plane 13 is inclined inward along the recessed direction of first ring groove 12, and joint portion 23 is provided with second inclined plane 24 adapted to first inclined plane 13 on the side close to first ring groove 12, so that when second barrel 2 is assembled or separated from first barrel 1, it is more labor-saving, and at the same time, it can also avoid causing great damage to first barrel 1 or second barrel 2, thereby improving 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, wherein the inclination angle is preferably set to 50 degrees.

In some embodiments of the present embodiment, the second cylinder 2 is provided with a limiting portion 25 at one end close to the first cylinder 1, and the limiting portion 25 abuts against the first cylinder 1. Specifically, the stopper 25 is a single projection. When installing first barrel 1, spacing portion 25 plays spacing and the effect of location, accomplishes the joint assembly back with first barrel 1 and second barrel 2, and spacing portion 25 butt first barrel 1.

In another embodiment, the stopper 25 may be a plurality of projections spaced apart from each other in the circumferential direction of the second cylinder 2. So, a plurality of spacing portions 25 can form comparatively balanced location to each position of first barrel 1, the joint installation of being convenient for.

Referring to fig. 1 to 3, as a preferred embodiment of the present embodiment, the limiting portion 25 may also be an annular convex ring disposed on the outer wall of the second cylinder 2, which is more convenient for installation.

Referring to fig. 1 to 3, in some embodiments of the present embodiment, the second cylinder 2 is provided with an arc plate 26 extending toward the inside of the first cylinder 1 at an end close to the first cylinder 1, the arc plate 26 is located between the polarized lens body 3 and the first cylinder 1, and the guide slot 22 is provided on the arc plate 26. By providing the guide slots 22 on the arc-shaped plate 26 extending toward the inside of the first cylinder 1, it is convenient to both form the guide slots 26 and assemble the guide positioning portions 31 on the polarized lens body 3 with the guide slots 22.

Referring to fig. 10, in some embodiments of the present embodiment, the first cylinder 1 and the second cylinder 2 are provided with scale marks 4, wherein a set of scale marks on the first cylinder 1 shows an angle of turning of the polarized lens body 3 around its own rotation axis (i.e., a polarized angle in a vertical plane), and a set of scale marks on the second cylinder 2 shows an angle of rotation of the whole optical module 10 around a central axis of the second cylinder 2 (i.e., an angle of rotation of the lamp light irradiation in a horizontal plane), so that the corresponding polarized angle and the lamp light irradiation rotation direction can be known through the positions of the scale marks.

In other embodiments, only one set of scale marks 4 may be provided 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 the understanding of the rotation direction of the lamp light.

Referring to fig. 1 to 3, in some embodiments of the present embodiment, the first engaging portion 21 is disposed on an outer wall of the second cylinder 2, and specifically, the first engaging portion 21 is a second annular clamping groove. So, only need set up corresponding on lamp body component 40 with some buckles or the snap ring structure of second ring-shaped clamping groove complex, can be in the same place second barrel 2 and lamp body component 40 assembly, and make whole optical module 10 can not be restricted ground and take place to rotate relatively lamp body component 40 under the external force drive to change light fast laborsavingly and shine the direction.

In other embodiments, the first engaging portion 21 may also be disposed on the inner wall of the second barrel 2, that is, a second annular groove is disposed on the inner wall of the second barrel 2, and accordingly, some snap or snap ring structures that are engaged with the second annular groove are disposed on the lamp body assembly 40, so that the optical module 10 can be rotatably connected to the lamp body assembly 40.

In another embodiment, the first engaging portion 21 of the second cylinder 2 and the snap or snap ring structure of the lamp body assembly 40 may be arranged in a reversed position, that is, the first engaging portion 21 of the second cylinder 2 is in a snap or snap ring structure, the lamp body assembly 40 is provided with a second annular snap groove, and the optical module 10 can be connected to the lamp body assembly 40 in a rotatable manner.

Referring to fig. 5 to 9, an embodiment of the invention further discloses a lamp, which includes a light emitting module 20, a condensing lens body 30, the above polarization-adjustable optical module 10, and a lamp body assembly 40. The light emitting module 20 is detachably disposed on the lamp body assembly 40 through the light source fixing plate 42, the condensing lens body 30 is snap-fitted on 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 periphery of the light emitting module 20, the third cylinder 41 is connected with the light source fixing plate 42 through a screw, and the third cylinder 41 is correspondingly provided with a second joint 411 rotatably connected with the first joint 21. The optical module 10 can be rotatably assembled on the lamp body assembly 40 by the rotation connection of the first joint part 21 and the second joint part 411, so that the position of the polarized lens body 3 is changed by rotating the first cylinder 1 and the second cylinder 2, and the light generated by the light emitting module 20 can be deflected and the irradiation angle can be changed by the polarized lens body 3 after being converged by the condensing lens body 30, thereby realizing the adjustment of polarized light in a limited space and completing the change of optical effect.

Specifically, the second engaging portion 411 is disposed on the inner wall of the third cylinder 41, and the second engaging portion 411 is a plurality of fasteners adapted to the second annular locking groove disposed on the outer wall of the second cylinder 2. Through buckle and ring groove's cooperation structure to be in the same place the assembly of second barrel 2 and lamp body component 40, and make whole optical module can not restrict relative lamp body component 40 and take place to rotate under the external force drive, thereby change light irradiation direction laborsavingly fast.

It should be noted that the lamp provided in the embodiment of the present invention further includes conventional electrical components such as a heat sink 43, a cover 44, and a power cord 45.

The lamp provided by the embodiment of the invention can be various illuminating lamps with requirements on adjusting the polarization angle and the illumination angle, such as down lamps, recessed lamps, underground lamps, wall lamps and the like.

Referring to fig. 2, 5, 6 and 9, when in use, a specific lamp is selected, the optical module 10 is held by a hand and extends into the housing 44, and the first engaging portion 21 on the second cylinder 2 is engaged 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 polarized light and irradiation angle, the first barrel 1 is rotated, so that the polarized lens body 3 can synchronously rotate with the first barrel 1 on the horizontal plane, and meanwhile, under the guiding action of the guiding positioning part 31 on the polarized lens body 3 on the guiding slotted hole 22 on the second barrel 2, the polarized lens body 3 also overturns relative to the rotation axis of the polarized lens body at a certain angle on the vertical plane, thereby realizing the polarized light adjustment at a certain angle on the vertical plane. Then, the second cylinder 2 is rotated, so that the entire optical module 10 is rotated, thereby realizing the adjustment of the irradiation direction at a certain angle on the horizontal plane.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An optical module with adjustable polarized light, which can be assembled in the lamp body assembly (40) in general, and is characterized in that: it comprises a polarized lens body (3) and a hollow first cylindrical body (1) and a second hollow cylindrical body (1). A cylinder (2), one end of the first cylinder (1) is detachably and rotatably connected to one end of the second cylinder (2), and the polarized lens body (3) is rotatably arranged on the first cylinder In the inner cavity of the body (1), the polarized lens body (3) is provided with a guide positioning portion (31) at the edge of the vertical rotation axis, and the second cylinder (2) is provided with an inclined guide slot (22) ), the guide positioning portion (31) is connected with the guide slot hole (22) in a sliding fit, and the second cylinder (2) is provided with a first detachable and rotatable connection with the lamp body assembly (40). A joint (21).

2. The optical module with adjustable polarized light according to claim 1, characterized in that: the polarized lens body (3) is symmetrically provided with two rotating shaft parts (32), and the first cylindrical body (1) A shaft hole (11) rotatably connected with the rotating shaft portion (32) is provided, and the axis of the shaft hole (11) intersects perpendicularly with the central axis of the first cylinder (1).

3 . The optical module with adjustable polarization according to claim 1 , wherein the guiding and positioning portion ( 31 ) is a cylinder with an arc surface at the end. 4 .

4. The adjustable polarized optical module according to claim 1, characterized in that: the polarized lens body (3) is in the shape of a disk, and the polarized lens body (3) includes a cylindrical body close to the first cylindrical body (1) the first refraction surface (33) and the second refraction surface (34) close to the second cylinder (2), the surface of the first refraction surface (33) is uniformly distributed with four pyramids, The bulge-shaped protrusions are evenly distributed on the surface of the second refraction surface (34).

5. 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 groove (12), and the second cylinder (1) is provided with a first annular groove (12). 2) At least one snap-fit portion (23) slidably snap-fitted with the first annular snap groove (12) is provided.

6. The optical module with adjustable polarization according to claim 5, characterized in that: the edge of the first annular clamping groove (12) is provided with a first inclined surface (13), and the clamping portion (23) A second inclined surface (24) adapted to the first inclined surface (13) is provided.

7. The optical module with adjustable polarization according to claim 1, characterized in that: a limiting portion (25) is provided at one end of the second cylinder (2) close to the first cylinder (1) , the limiting portion (25) is in contact with the first cylindrical body (1).

8 . The optical module with adjustable polarization according to claim 7 , wherein the limiting portion ( 25 ) is a single bump, a plurality of bumps distributed at intervals, or an annular convex ring. 9 .

9. The adjustable polarized optical module according to claim 1, characterized in that: the second cylinder (2) is provided with a direction toward the first cylinder (1) at one end close to the first cylinder (1). An arc-shaped plate (26) extending inside the cylinder body (1), the arc-shaped plate (26) is located between the polarizing lens body (3) and the first cylinder body (1), and the guide slot hole (22) is arranged on the arc-shaped plate (26).

10 . The optical module with adjustable polarization according to claim 1 , wherein a scale mark is provided on the first cylinder ( 1 ) and/or the second cylinder ( 2 ). 11 .

11. The optical module with adjustable polarization according to claim 1, wherein the first joint (21) is disposed on the outer wall of the second cylinder (2), and the first joint The part (21) is a second annular clip groove or at least one clip.

12. A lamp, characterized in that it comprises a light emitting module (20), a condensing lens body (30), an optical module (10) with adjustable polarization according to any one of claims 1 to 11, and a lamp body assembly ( 40), the light emitting module (20) is arranged on the lamp body assembly (40), the condensing lens body (30) is arranged below the light emitting module (20), the lamp body assembly (40) ) A third cylinder (41) is provided on the outer circumference of the light-emitting module (20), and a second joint rotatably connected to the first joint (21) is correspondingly provided on the third cylinder (41). Section (411).

13. The lamp according to claim 12, characterized in that: the second joint portion (411) is provided on the inner wall of the third cylinder (41), and the second joint portion (411) is the first joint portion (411). Two annular slots or at least one buckle.