CN219530658U - Carpet lamp - Google Patents

Abstract

The utility model provides a carpet light which comprises a light emitting module, a light condensing module, a film module and an imaging module which are sequentially and adjacently arranged along a light emitting direction. The imaging module comprises a fifth imaging lens, a fourth imaging lens, a third imaging lens, a second imaging lens and a first imaging lens which are sequentially arranged; the fifth imaging lens is arranged adjacent to the film module, one face of the first imaging lens, which faces the second imaging lens, is a convex face, the other face of the first imaging lens is a concave face, the second imaging lens is a convex-concave lens, one face of the second imaging lens, which faces the first imaging lens, is a concave face, the other face of the second imaging lens is a convex face, the third imaging lens is a biconvex lens, the radius of one face of the third imaging lens, which faces the fourth imaging lens, is smaller than the radius of the other face of the fourth imaging lens, the fourth imaging lens is a biconcave lens, and the fifth imaging lens is a biconvex lens. By additionally arranging the first imaging lens and the second imaging lens on the imaging module, the carpet lamp provided by the utility model has high imaging magnification, the distance-to-height ratio reaches 1.5-2 times, and the imaging effect is better.

Description

Carpet lamp

Technical Field

The utility model relates to the technical field of carpet lamps, in particular to a carpet lamp with a good imaging effect.

Background

Carpet lights are commonly used on vehicles for auxiliary lighting and cues. As carpet light applications become more popular, car factories and consumers are also increasingly demanding automotive carpet lights. The carpet light in the prior art generally comprises a first lens, a second lens and a third lens, wherein the first lens is a biconvex lens, the second lens is a biconcave lens, and the third lens is a biconvex lens.

It is desirable to provide a carpet light to solve the above-mentioned problems.

Disclosure of Invention

The carpet lamp provided by the utility model has the advantages of high imaging magnification, high distance-to-height ratio of 1.5-2 times and good imaging effect.

The technical scheme of the utility model is as follows:

the carpet lamp comprises a light emitting module, a light condensing module, a film module and an imaging module which are sequentially and adjacently arranged along the light emitting direction;

the imaging module comprises a fifth imaging lens, a fourth imaging lens, a third imaging lens, a second imaging lens and a first imaging lens which are sequentially arranged along the light emitting direction; the fifth imaging lens is arranged adjacent to the film module, one face of the first imaging lens, which faces the second imaging lens, is a convex face, the other face of the first imaging lens is a concave face, the second imaging lens is a convex-concave lens, one face of the second imaging lens, which faces the first imaging lens, is a concave face, the other face of the second imaging lens is a convex face, the third imaging lens is a biconvex lens, the radius of one face of the third imaging lens, which faces the fourth imaging lens, is smaller than the radius of the other face of the third imaging lens, the fourth imaging lens is a biconcave lens, and the fifth imaging lens is a biconvex lens.

In the carpet light of the present utility model, the refractive index of each of the second imaging lens and the fourth imaging lens is greater than the refractive index of each of the first imaging lens, the third imaging lens and the fifth imaging lens.

In the carpet light of the present utility model, the second imaging lens and the fourth imaging lens are PC plastic, and the first imaging lens, the third imaging lens and the fifth imaging lens are COC plastic.

In the carpet light, the light condensing module comprises a first light condensing lens and a second light condensing lens, wherein the second light condensing lens is arranged adjacent to the light emitting module, the first light condensing lens is a biconvex lens, the second light condensing lens is a concave-convex lens, and one surface of the second light condensing lens, which faces the light emitting module, is concave, and the other surface of the second light condensing lens is convex.

In the carpet lamp, the light emitting module comprises an LED lamp bead, the periphery of the second light condensing lens extends towards the direction close to the light emitting module to form an inner abutting end, the inner abutting end is annular and is covered outside the LED lamp bead, two opposite inner heat dissipation grooves are formed in the inner abutting end, and the inner heat dissipation grooves are communicated with the inside and the outside of the inner abutting end; the carpet light further comprises a shell, the shell is covered outside the light condensing module, the film module and the imaging module, one end of the shell adjacent to the second light condensing lens is an outer abutting end, two outer heat dissipation grooves are formed in the outer abutting end, and the positions of the two outer heat dissipation grooves and the two inner heat dissipation grooves are in one-to-one correspondence.

In the carpet lamp, two opposite clamping blocks are arranged on the outer side of the inner abutting end, the two clamping blocks and the two inner radiating grooves are arranged at intervals, two clamping grooves are arranged on the inner side of the outer abutting end, and the two clamping blocks are correspondingly clamped in the two clamping grooves.

In the carpet lamp, the two clamping blocks are different in size, the two clamping grooves are different in size, two identification blocks with different sizes are arranged on the outer side of the outer abutting end, the two identification blocks are respectively opposite to the two clamping grooves, and the large identification blocks correspond to the large clamping grooves.

In the carpet light, the film module comprises a film tray and a film, wherein the film is fixed on one side of the film tray, which faces the fifth imaging lens, and the film tray is provided with a light shielding hole.

In the carpet light, the film is square, and four protruding limit strips are arranged on one side, facing the fifth imaging lens, of the film tray and are respectively abutted with four edges of the film.

In the carpet light, the four limiting strips are provided with the inserting blocks, one side, facing the film, of the fifth imaging lens is provided with the four inserting grooves, and the four inserting blocks are respectively positioned in the four inserting grooves; the fifth imaging lens protrudes towards the fourth imaging lens to form a first clamping table, the periphery of the fourth imaging lens extends towards the fifth imaging lens to form a first clamping ring, and the first clamping table is connected in the first clamping ring in an interference mode; the fourth imaging lens protrudes towards the third imaging lens to form a second clamping table, the periphery of the third imaging lens extends towards the fourth imaging lens to form a second clamping ring, and the second clamping table is connected in the second clamping ring in an interference mode; the third imaging lens protrudes towards the second imaging lens to form a third clamping table, the periphery of the second imaging lens extends towards the third imaging lens to form a third clamping ring, and the third clamping table is connected in the third clamping ring in an interference mode; the second imaging lens protrudes towards the first imaging lens to form a fourth clamping table, the periphery of the first imaging lens extends towards the second imaging lens to form a fourth clamping ring, and the fourth clamping table is connected in the fourth clamping ring in an interference mode; a plurality of first inserting columns are arranged on one side, facing the first condensing lens, of the film tray, a plurality of first inserting holes are arranged on one side, facing the film tray, of the first condensing lens, and the first inserting columns are located in the first inserting holes in a one-to-one correspondence mode; the first condensing lens towards one side of the second condensing lens is provided with a plurality of second inserting columns, one side of the second condensing lens towards the first condensing lens is provided with a plurality of second inserting holes, and the second inserting columns are located in the second inserting holes in a one-to-one correspondence mode.

Compared with the prior art, the utility model has the beneficial effects that: the carpet lamp comprises an imaging module, a first imaging lens, a second imaging lens, a third imaging lens, a fourth imaging lens and a fifth imaging lens, wherein the first imaging lens is a convex lens, the second imaging lens is a convex-concave lens, the third imaging lens is a biconvex lens, the fourth imaging lens is a biconcave lens, the fifth imaging lens is a biconvex lens, and the imaging module is additionally provided with the first imaging lens and the second imaging lens, so that the carpet lamp has high imaging magnification, a distance-to-height ratio of 1.5-2 times and a good imaging effect.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments are briefly described below, and the drawings in the following description are only drawings corresponding to some embodiments of the present utility model.

Fig. 1 is a schematic longitudinal cross-sectional view of a carpet light of the prior art.

Fig. 2 is a schematic front view of a carpet light according to a preferred embodiment of the present utility model.

Fig. 3 is a schematic view of A-A cross-sectional structure of fig. 2.

Fig. 4 is a schematic exploded view of a carpet light according to a preferred embodiment of the present utility model.

Fig. 5 is a schematic structural view of a first condensing lens of a carpet light according to a preferred embodiment of the present utility model.

Fig. 6 is a schematic structural diagram of a second condensing lens of the carpet light according to the preferred embodiment of the present utility model.

Fig. 7 is a schematic structural view of a film tray of a carpet light according to a preferred embodiment of the present utility model.

Fig. 8 is a schematic structural view of a first imaging lens of a carpet light according to a preferred embodiment of the present utility model.

Fig. 9 is a schematic structural view of a second imaging lens of a carpet light according to a preferred embodiment of the present utility model.

Fig. 10 is a schematic structural view of a third imaging lens of a carpet light according to a preferred embodiment of the present utility model.

Fig. 11 is a schematic structural view of a fourth imaging lens of the carpet light according to the preferred embodiment of the present utility model.

Fig. 12 is a schematic structural view of a fifth imaging lens of the carpet light according to the preferred embodiment of the present utility model.

Fig. 13 is a schematic structural view of a housing of a carpet light according to a preferred embodiment of the present utility model.

Wherein the identification of fig. 1 is as follows:

10. a first lens, 20, a second lens, 30, a third lens;

the labels of fig. 2-13 are as follows:

1. the light-gathering module is used for gathering the light,

11. a first condenser lens 111, a first insertion hole 112, a second insertion column,

12. a second light-condensing lens is provided with a light-condensing lens,

121. an inner abutting end 1211, an inner heat dissipation groove 1212, a clamping block,

122. a second jack is provided with a first jack,

2. a film module, wherein the film module comprises a film layer,

21. a film tray, a film tray and a film tray,

211. the light-shielding hole is used for shielding the light,

212. a limit bar 2121, an insert block,

213. the first plug-in column is provided with a first plug-in column,

22. the film is used for the film,

3. the imaging module is configured to provide an image of the subject,

31. a first imaging lens 311, a fourth clamping ring,

32. the second imaging lens, 321, the third clamping ring, 322, the fourth clamping table, 33, the third imaging lens, 331, the second clamping ring, 332, the third clamping table, 34, the fourth imaging lens, 341, the first clamping ring, 342, the second clamping table, 35, the fifth imaging lens, 351, the slot, 352, the first clamping table,

4. the LED lamp beads are arranged on the inner side of the shell,

5. the device comprises a shell, 51, an outer abutting end, 511, an outer heat dissipation groove, 512, a clamping groove, 513 and an identification block. In the drawings, like structural elements are denoted by like reference numerals.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms of directions used in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are used for explaining and understanding the present utility model only with reference to the orientation of the drawings, and are not intended to limit the present utility model.

The words "first," "second," and the like in the terminology of the present utility model are used for descriptive purposes only and are not to be construed as indicating or implying relative importance and not as limiting the order of precedence.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1, an imaging module of a carpet light in the prior art generally comprises a first lens 10, a second lens 20 and a third lens 30, wherein the first lens 10 is a biconvex lens, the second lens 20 is a biconcave lens, and the third lens 30 is a biconvex lens.

The following is a preferred embodiment of a carpet light which solves the above technical problems.

Referring to fig. 2-13, a carpet light according to a preferred embodiment of the present utility model includes a light emitting module, a light condensing module 1, a film module 2 and an imaging module 3 that are sequentially and adjacently arranged along a light emitting direction. The light emitting module is used for providing a light source. The light condensing module 1 is used for condensing light emitted by the light emitting module. The film module 2 is used to provide a pattern source. The imaging module 3 is used for projecting the pattern of the film module 2. The imaging module 3 includes a fifth imaging lens 35, a fourth imaging lens 34, a third imaging lens 33, a second imaging lens 32, and a first imaging lens 31, which are sequentially arranged in the light-emitting direction. The fifth imaging lens 35 is disposed adjacent to the film module 2. The first imaging lens 31 is a convex lens, one surface facing the second imaging lens 32 is a convex surface, the other surface is a concave surface, and the second imaging lens 32 is a convex-concave lens, which is a concave lens. One surface of the second imaging lens 32 facing the first imaging lens 31 is concave, and the other surface is convex. The third imaging lens 33 is a biconvex lens, the radius of one surface facing the fourth imaging lens 34 is smaller than the radius of the other surface, the fourth imaging lens 34 is a biconcave lens, and the fifth imaging lens 35 is a biconvex lens.

The carpet light provided by the utility model has the advantages that the imaging module 3 is composed of the first imaging lens 31, the second imaging lens 32, the third imaging lens 33, the fourth imaging lens 34 and the fifth imaging lens 35, wherein the first imaging lens 31 is a convex lens, the second imaging lens 32 is a convex-concave lens, the third imaging lens 33 is a biconvex lens, the fourth imaging lens 34 is a biconcave lens, and the fifth imaging lens 35 is a biconvex lens, and the imaging magnification of the carpet light is high, the distance-height ratio is 1.5-2 times, and the imaging effect is good by additionally arranging the first imaging lens 31 and the second imaging lens 32 on the imaging module 3.

Referring to fig. 3, the refractive indexes of the second imaging lens 32 and the fourth imaging lens 34 are larger than those of the first imaging lens 31, the third imaging lens 33 and the fifth imaging lens 35. With the above-described structure, the chromatic dispersion of the second imaging lens 32 and the fourth imaging lens 34 and the chromatic dispersion of the first imaging lens 31, the third imaging lens 33, and the fifth imaging lens 35 can be mutually compensated, so that the images and the points of the two main color lights can be overlapped together, thereby eliminating the chromatic aberration of the two main color lights.

The second imaging lens 32 and the fourth imaging lens 34 are PC plastic, and the first imaging lens 31, the third imaging lens 33, and the fifth imaging lens 35 are COC plastic. The structure can effectively reduce chromatic aberration.

Referring to fig. 3, the condensing module 1 includes a first condensing lens 11 and a second condensing lens 12, the second condensing lens 12 is disposed adjacent to the light emitting module, the first condensing lens 11 is a biconvex lens, the second condensing lens 12 is a meniscus lens, and the meniscus lens belongs to one of the convex lenses. The second condenser lens 12 has a concave surface facing the light emitting module and a convex surface on the other side. In the above configuration, the collimation effect of the light can be improved by adding the second condenser lens 12, and the illumination uniformity can be improved.

With continued reference to fig. 3, 6 and 13, the light emitting module includes an LED lamp bead 4, the periphery of the second condensing lens 12 extends in a direction approaching the light emitting module to form an inner abutting end 121, the inner abutting end 121 is annular and is covered outside the LED lamp bead 4, the inner abutting end 121 is provided with two opposite inner heat dissipation grooves 1211, and the inner heat dissipation grooves 1211 are communicated with the inside and outside of the inner abutting end 121. The carpet light further comprises a housing 5, wherein the housing 5 is covered outside the condensing module 1, the film module 2 and the imaging module 3, one end of the housing 5 adjacent to the second condensing lens 12 is an outer abutting end 51, two outer radiating grooves 511 are arranged on the outer abutting end 51, and the two outer radiating grooves 511 correspond to the two inner radiating grooves 1211 one by one. In the above structure, by providing the outer heat dissipation groove 511 and the inner heat dissipation groove 1211, the heat generated by the LED lamp beads 4 can be timely dissipated.

With continued reference to fig. 3, 6 and 13, two opposite clamping blocks 1212 are disposed on the outer side of the inner abutting end 121, the two clamping blocks 1212 are disposed at intervals from the two inner heat dissipation grooves 1211, two clamping grooves 512 are disposed on the inner side of the outer abutting end 51, and the two clamping blocks 1212 are correspondingly clamped in the two clamping grooves 512. The above structure can make the housing 5 and the second condenser lens 12 be positioned and connected.

With continued reference to fig. 3, 6 and 13, the two clamping blocks 1212 are different in size, the two clamping grooves 512 are different in size, two different-sized identification blocks 513 are disposed on the outer side of the outer abutting end 51, the two identification blocks 513 are respectively opposite to the two clamping grooves 512, and the large-sized identification blocks 513 correspond to the large-sized clamping grooves 512. The structure is convenient for positioning and connecting the shell 5 and the second condensing lens 12, and is not easy to be reversely assembled.

Referring to fig. 3, 4 and 7, the film module 2 includes a film tray 21 and a film 22, the film 22 is fixed on a side of the film tray 21 facing the fifth imaging lens 35, and a light shielding hole 211 is provided on the film tray 21. In the above structure, the light shielding hole 211 can effectively eliminate stray light.

Referring to fig. 7, the film 22 is square, and four protruding limiting bars 212 are disposed on a side of the film tray 21 facing the fifth imaging lens 35, and the four limiting bars 212 are respectively abutted with four sides of the film 22. The above structure facilitates fixing of the film 22.

Referring to fig. 5, 6, 7, 8, 9, 10, 11 and 12, the four limiting bars 212 are provided with inserting blocks 2121, and the side of the fifth imaging lens 35 facing the film 22 is provided with four inserting grooves 351, and the four inserting blocks 2121 are respectively located in the four inserting grooves 351. The fifth imaging lens 35 protrudes toward the fourth imaging lens 34 to form a first clamping table 352, and the periphery of the fourth imaging lens 34 extends toward the fifth imaging lens 35 to form a first clamping ring 341, and the first clamping table 352 is in interference connection with the first clamping ring 341. The fourth imaging lens 34 protrudes toward the third imaging lens 33 to form a second clamping table 342, and the periphery of the third imaging lens 33 extends toward the fourth imaging lens 34 to form a second clamping ring 331, and the second clamping table 342 is connected in the second clamping ring 331 in an interference manner. The third imaging lens 33 protrudes towards the second imaging lens 32 to form a third clamping table 332, the periphery of the second imaging lens 32 extends towards the third imaging lens 33 to form a third clamping ring 321, and the third clamping table 332 is in interference connection with the third clamping ring 321. The second imaging lens 32 protrudes towards the first imaging lens 31 to form a fourth clamping table 322, the periphery of the first imaging lens 31 extends towards the second imaging lens 32 to form a fourth clamping ring 311, and the fourth clamping table 322 is connected in the fourth clamping ring 311 in an interference mode. A plurality of first inserting columns 213 are arranged on one side of the film tray 21 facing the first condensing lens 11, a plurality of first inserting holes 111 are arranged on one side of the first condensing lens 11 facing the film tray 21, and the plurality of first inserting columns 213 are located in the plurality of first inserting holes 111 in a one-to-one correspondence mode. A plurality of second inserting columns 112 are arranged on one side of the first condensing lens 11 facing the second condensing lens 12, a plurality of second inserting holes 122 are arranged on one side of the second condensing lens 12 facing the first condensing lens 11, and the second inserting columns 112 are located in the second inserting holes 122 in a one-to-one correspondence mode. With the above structure, the first imaging lens 31, the second imaging lens 32, the third imaging lens 33, the fourth imaging lens 34, the fifth imaging lens 35, the film tray 21, the first condensing lens 11, and the second condensing lens 12 can be stably connected together without adding additional fittings.

The working principle of the carpet light of the preferred embodiment of the utility model is as follows: light is emitted through the LED lamp beads 4, then the light is converged and radiated onto the film 22 through the light converging module 1, stray light is eliminated through the light shielding holes 211, and finally the pattern of the film 22 is projected out through the imaging module 3. Wherein, the collimation effect of the light can be improved by adding the second condensing lens 12 on the condensing module 1, thereby improving the illumination uniformity; by additionally arranging the first imaging lens 31 and the second imaging lens 32 on the imaging module 3, the carpet light has high imaging magnification, the distance-to-height ratio reaches 1.5-2 times, and the imaging effect is good.

This completes the working principle of the carpet light of the preferred embodiment.

The carpet lamp comprises an imaging module, a first imaging lens, a second imaging lens, a third imaging lens, a fourth imaging lens and a fifth imaging lens, wherein the first imaging lens is a convex lens, the second imaging lens is a convex-concave lens, the third imaging lens is a biconvex lens, the fourth imaging lens is a biconcave lens, the fifth imaging lens is a biconvex lens, and the imaging module is additionally provided with the first imaging lens and the second imaging lens, so that the carpet lamp has high imaging magnification, a distance-to-height ratio of 1.5-2 times and a good imaging effect.

In summary, although the present utility model has been described with reference to the preferred embodiments, the scope of the utility model is not limited thereto, and any person skilled in the art who is skilled in the art should make equivalent substitutions or modifications according to the technical scheme of the present utility model within the scope of the present utility model.

Claims (10)

1. The carpet lamp is characterized by comprising a light emitting module, a light condensing module, a film module and an imaging module which are sequentially and adjacently arranged along the light emitting direction;

the imaging module comprises a fifth imaging lens, a fourth imaging lens, a third imaging lens, a second imaging lens and a first imaging lens which are sequentially arranged along the light emitting direction; the fifth imaging lens is arranged adjacent to the film module, one face of the first imaging lens, which faces the second imaging lens, is a convex face, the other face of the first imaging lens is a concave face, the second imaging lens is a convex-concave lens, one face of the second imaging lens, which faces the first imaging lens, is a concave face, the other face of the second imaging lens is a convex face, the third imaging lens is a biconvex lens, the radius of one face of the third imaging lens, which faces the fourth imaging lens, is smaller than the radius of the other face of the third imaging lens, the fourth imaging lens is a biconcave lens, and the fifth imaging lens is a biconvex lens.

2. The carpet light of claim 1, wherein the refractive index of the second imaging lens and the fourth imaging lens are each greater than the refractive index of the first imaging lens, the third imaging lens, and the fifth imaging lens.

3. The carpet light of claim 2, wherein the second imaging lens and the fourth imaging lens are PC plastic and the first imaging lens, the third imaging lens, and the fifth imaging lens are COC plastic.

4. The carpet light of claim 1, wherein the light gathering module comprises a first light gathering lens and a second light gathering lens, the second light gathering lens is arranged adjacent to the light emitting module, the first light gathering lens is a biconvex lens, the second light gathering lens is a concave-convex lens, and one surface facing the light emitting module is concave, and the other surface is convex.

5. The carpet light of claim 4, wherein the light emitting module comprises an LED light bead, the periphery of the second condensing lens extends in a direction approaching the light emitting module to form an inner abutting end, the inner abutting end is annular and is covered outside the LED light bead, the inner abutting end is provided with two opposite inner heat dissipation grooves, and the inner heat dissipation grooves are communicated with the inside and the outside of the inner abutting end; the carpet light further comprises a shell, the shell is covered outside the light condensing module, the film module and the imaging module, one end of the shell adjacent to the second light condensing lens is an outer abutting end, two outer heat dissipation grooves are formed in the outer abutting end, and the positions of the two outer heat dissipation grooves and the two inner heat dissipation grooves are in one-to-one correspondence.

6. The carpet light of claim 5, wherein two opposite clamping blocks are arranged on the outer side of the inner abutting end, the two clamping blocks are arranged at intervals with the two inner radiating grooves, two clamping grooves are arranged on the inner side of the outer abutting end, and the two clamping blocks are correspondingly clamped in the two clamping grooves.

7. The carpet light of claim 6, wherein two of the clamping blocks are different in size, two of the clamping grooves are different in size, two of the identification blocks are arranged on the outer side of the outer abutting end and are different in size, the two identification blocks are opposite to the two clamping grooves respectively, and the large identification blocks correspond to the large clamping grooves.

8. The carpet light of claim 4 wherein the film module comprises a film tray and a film, the film being secured to a side of the film tray facing the fifth imaging lens, the film tray having a light blocking aperture disposed thereon.

9. The carpet light of claim 8, wherein the film is square, four protruding limit bars are arranged on one side of the film tray, which faces the fifth imaging lens, and the four limit bars are respectively abutted with four sides of the film.

10. The carpet light of claim 9, wherein the four limiting strips are provided with inserting blocks, one side of the fifth imaging lens facing the film is provided with four inserting grooves, and the four inserting blocks are respectively positioned in the four inserting grooves; the fifth imaging lens protrudes towards the fourth imaging lens to form a first clamping table, the periphery of the fourth imaging lens extends towards the fifth imaging lens to form a first clamping ring, and the first clamping table is connected in the first clamping ring in an interference mode; the fourth imaging lens protrudes towards the third imaging lens to form a second clamping table, the periphery of the third imaging lens extends towards the fourth imaging lens to form a second clamping ring, and the second clamping table is connected in the second clamping ring in an interference mode; the third imaging lens protrudes towards the second imaging lens to form a third clamping table, the periphery of the second imaging lens extends towards the third imaging lens to form a third clamping ring, and the third clamping table is connected in the third clamping ring in an interference mode; the second imaging lens protrudes towards the first imaging lens to form a fourth clamping table, the periphery of the first imaging lens extends towards the second imaging lens to form a fourth clamping ring, and the fourth clamping table is connected in the fourth clamping ring in an interference mode; a plurality of first inserting columns are arranged on one side, facing the first condensing lens, of the film tray, a plurality of first inserting holes are arranged on one side, facing the film tray, of the first condensing lens, and the first inserting columns are located in the first inserting holes in a one-to-one correspondence mode;

the first condensing lens towards one side of the second condensing lens is provided with a plurality of second inserting columns, one side of the second condensing lens towards the first condensing lens is provided with a plurality of second inserting holes, and the second inserting columns are located in the second inserting holes in a one-to-one correspondence mode.