Vehicle door welcome lamp

Abstract

A vehicle door welcome lamp comprises a lens cone, an imaging set, a film set and a light condensation set are sequentially arranged in the lens cone from inside to outside, the imaging set comprises 3-5 lenses, the 3-5 lenses of the imaging set at least comprise a concave lens and a convex lens, and the light condensation set comprises 1-2 lenses; the film group comprises a film clamp and a film, the film is clamped on the film clamp, and the film clamp is located between the third lens and the film. The three convex lenses and the concave lens are adopted to form the lens group, dispersion and other chromatic aberration are effectively eliminated, the field angle of the lens group can reach 30-60 degrees, and the lens group is provided with the condensation group, the film group and the imaging group, can be suitable for multiple scenes and is high in compatibility.

Description

Technical Field

[0001] The utility model relates to the technical field of welcome lamps, in particular to a door welcome lamp. Background Art

[0002] When the vehicle wants to stop by the roadside when traveling at night, if the driver or passengers need to get off the vehicle, it is easy to ignore the puddles and debris on the roadside due to the low visibility at night, which can cause the driver and passengers to slip, dirty their clothes, or even slip and get injured. A welcome light is needed. When the door is opened, the welcome light will light up instantly and illuminate the ground. When the door is closed, the welcome light will go out instantly. At present, most car companies directly install LED lights at the bottom of the door to serve as welcome lights. Although this can solve the problem, it is not optimized enough, cannot reflect the brand tone of the car, and cannot present the car company logo pattern or text on the ground according to their own preferences. Therefore, a door welcome light is needed to improve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a door welcome light, aiming to solve the above technical problems. The utility model adopts two convex lenses and one concave lens to form a lens group, which not only effectively eliminates dispersion and other chromatic aberrations, but also enables the lens group to have a field of view of 30-60 degrees. The utility model has an imaging group, a film group and a focusing group, which can be applied to multiple scenes and has high compatibility. The overall structure is compact, occupies less space, can adapt to multiple scenes, and can also effectively eliminate chromatic aberrations.

[0004] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0005] A vehicle door welcome light comprises a lens barrel, wherein an imaging group, a film group and a focusing group are arranged in sequence from the inside to the outside of the lens barrel, wherein the imaging group comprises 3-5 lenses, wherein the 3-5 lenses of the imaging group at least comprise a concave lens and a convex lens, and the focusing group comprises 1-2 lenses; the film group comprises a film clip and a film, wherein the film card is mounted on the film clip, and the film clip is located between the third lens and the film.

[0006] Furthermore, the imaging group includes three lenses, which are the first lens, the second lens and the third lens from the inside to the outside, the first lens is a biconvex lens convex to the object side, the second lens is a concave-convex lens, and the third lens is a plano-convex lens convex to the image side. The concave-convex lens mainly refracts and focuses light to adjust the direction and focal length of light so that the object looks clearer or larger; the plano-convex lens can adjust the imaging distance, and by adjusting the distance between the object and the lens, the imaging position is changed to adapt to different practical needs.

[0007] Furthermore, the focusing group includes a lens set as a focusing lens, and the focusing lens is a double convex lens convex toward the image side. The double convex lens is used for light field correction, correcting aberration and distortion problems in the optical system, and improving imaging quality.

[0008] Furthermore, the refractive index of the second lens is greater than the refractive index of the first lens and the third lens. The higher the refractive index of the lens, the smaller the refraction angle of the light; the high refractive index of the second lens can effectively reduce or eliminate optical distortion inside the lens, such as aberration, chromatic aberration and other problems, thereby improving the clarity of vision.

[0009] Further, the lens barrel comprises a lens barrel upper cover and a lens barrel lower cover, the middle of the lens barrel upper cover is provided with an upper cover positioning groove, the lens barrel lower cover is provided with a lower cover positioning protrusion, the upper cover positioning groove and the lower cover positioning protrusion are arranged correspondingly, so that the lens barrel upper cover and the lens barrel lower cover are combined into a lens barrel. The lens barrel can effectively protect the working stability of the imaging group, the film group and the focusing group.

[0010] Furthermore, a protrusion in the middle of the lens barrel is provided to form a lens barrel dividing ring, and the lens barrel dividing ring divides the interior of the lens barrel into an upper imaging group mounting cavity and a focusing group mounting cavity, the imaging group is mounted in the imaging group mounting cavity, and the film group and the focusing group are mounted in the focusing group mounting cavity; the two parts are separated, which is beneficial to reduce the diffraction of light and can also help the lens adjust the light beam.

[0011] Furthermore, a lens barrel light-transmitting hole is provided in the middle of the upper end of the lens barrel, and the lens barrel light-transmitting hole is connected to the inner cavity of the lens barrel; and a protruding lens barrel positioning column is also provided on the bottom surface of the lens barrel. The lens barrel positioning column facilitates the positioning and installation of the utility model at the lower end of the vehicle door.

[0012] Furthermore, a film clip light-transmitting hole is provided in the middle of the film clip, and a film mounting groove is provided on the bottom surface of the film clip. The shape of the film mounting groove is adapted to the outer shape of the film. The film has a negative film with an image to be presented on it, and the film clip light-transmitting hole refracts the image negative film to the imaging group.

[0013] Furthermore, focusing lens positioning grooves are provided on both sides of the film installation groove.

[0014] Furthermore, both sides of the upper end surface of the condenser lens are provided with condenser lens positioning posts, and the condenser lens positioning posts and the condenser lens positioning grooves are adapted and arranged accordingly. When the condenser lens is fixed to the bottom of the inner side of the lens barrel, the film clip and the film combination are installed on the condenser lens by relying on the condenser lens positioning posts and the condenser lens positioning grooves. After the condenser lens is fixed, the light source can be stably refracted onto the film through the condenser lens, and then the image is presented on the irradiated object through the imaging lens behind the film.

[0015] The utility model of the vehicle door welcome lamp has the following beneficial effects:

[0016] 1. In the door welcome lamp of the utility model, the imaging group is combined by the first lens, the second lens and the third lens, so that the dispersion of the concave lens and the dispersion of the convex lens can compensate each other, thereby eliminating dispersion and other chromatic aberrations, effectively improving the imaging clarity and enhancing the user experience;

[0017] 2. The imaging group of the door welcome lamp of the utility model can be applied to multiple scenes, has high compatibility and low cost, and solves the problem that the projection lamp in the prior art can only be used in a single scene and has poor compatibility because it has only a single welcome mode;

[0018] 3. The door welcome lamp of the utility model has three lens group installation cavities, and the three groups of focusing modules, film modules and imaging modules can be installed inside the lens barrel, and the focusing lens adopts a double convex lens, which shortens the total length of the lens, making the overall submission of the utility model smaller and occupying less space;

[0019] 4. In the door welcome lamp of the utility model, the film sheet is provided with a limiting protrusion, and the lens group mounting cavity is provided with an adaptive limiting groove, which can effectively prevent the film from rotating and make the projection more stable;

[0020] 5. The door welcome lamp of the utility model adopts a combination of three convex lenses and one concave lens, so that the field angle of the lens group can reach 30-60 degrees, which can make the projected image onto the object clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the door welcome light of the utility model;

[0022] Figure 2 This is an overall exploded view of the door welcome light of the utility model;

[0023] Figure 3 The figure is a partial internal schematic diagram of the door welcome light of the present invention. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the embodiments and drawings.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element; when an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] like Figure 1 and Figure 2 As shown, a door welcome light comprises a lens barrel, wherein an imaging group, a film group and a focusing group are arranged in sequence from the inside to the outside of the lens barrel, wherein the imaging group comprises 3-5 lenses, wherein the 3-5 lenses of the imaging group comprise at least one concave lens and one convex lens, and the focusing group comprises 1-2 lenses; the film group comprises a film clip 6 and a film 7, wherein the film 7 is clamped on the film clip 6, and the film clip 6 is located between the third lens 5 and the film 7.

[0028] like Figure 2 As shown, the imaging group includes three lenses, which are the first lens 3, the second lens 4 and the third lens 5 from the inside to the outside. The first lens 3 is a biconvex lens convex to the object side, the second lens 4 is a concave-convex lens, and the third lens 5 is a plano-convex lens convex to the image side. The function of the concave-convex lens is mainly to adjust the direction and focal length of the light by refracting and focusing the light, so as to make the object look clearer or larger. The plano-convex lens can adjust the imaging distance, and by adjusting the distance between the object and the lens, the imaging position is changed to adapt to different practical needs.

[0029] like Figure 2 As shown, the focusing group includes a lens set as a focusing lens 8, and the focusing lens 8 is a double convex lens convex to the image side. The double convex lens is used for light field correction, correcting aberration and distortion problems in the optical system, and improving imaging quality.

[0030] like Figure 2As shown, the refractive index of the second lens 4 is greater than the refractive index of the first lens 3 and the third lens 5. The higher the refractive index of the lens, the smaller the refraction angle of the light. The high refractive index of the second lens 4 can effectively reduce or eliminate optical distortion inside the lens, such as aberration, chromatic aberration and other problems, thereby improving the clarity of vision.

[0031] like Figure 1 As shown, the lens barrel comprises a lens barrel upper cover 1 and a lens barrel lower cover 2, wherein the middle of the lens barrel upper cover 1 is provided with an upper cover positioning groove, and the lens barrel lower cover 2 is provided with a lower cover positioning protrusion, and the upper cover positioning groove and the lower cover positioning protrusion are arranged correspondingly, so that the lens barrel upper cover 1 and the lens barrel lower cover 2 are combined into a lens barrel. The lens barrel can effectively protect the working stability of the imaging group, the film group and the focusing group.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the projection in the middle of the lens barrel forms a lens barrel separation ring, and the lens barrel separation ring divides the interior of the lens barrel into an upper imaging group installation cavity and a focusing group installation cavity, the imaging group is installed in the imaging group installation cavity, and the film group and the focusing group are installed in the focusing group installation cavity. The two parts are separated, which is beneficial to reduce the diffraction of light and can also help the lens adjust the light beam.

[0033] It should be noted that: in this embodiment, in the lens barrel separator ring, the upper lens barrel separator ring is provided with an imaging group installation cavity, and the imaging group installation cavity is provided with a front imaging group limiting groove and a rear imaging group limiting groove in sequence because the first lens 3 is relatively small, and the front imaging group limiting groove is used to fix the position of the first lens 3, and the rear imaging group limiting groove is used to fix the second lens 4 and the third lens 5. The lower lens barrel separator ring is provided with a focusing group installation cavity, and the focusing group installation cavity is provided with a focusing lens 8 limiting groove 801, which is used to fix the focusing lens 8 at the bottom of the lens barrel, and then the film 7 and the film clamp 6 are fixed in sequence.

[0034] like Figure 3 As shown, a lens barrel light-transmitting hole is provided in the middle of the upper end of the lens barrel, and the lens barrel light-transmitting hole is connected to the inner cavity of the lens barrel; and a protruding lens barrel positioning column 201 is also provided on the bottom surface of the lens barrel. The lens barrel positioning column 201 facilitates the positioning and installation of the utility model at the lower end of the vehicle door.

[0035] like Figure 2 and Figure 3 As shown, a film clip light-transmitting hole is provided in the middle of the film clip 6, and a film mounting groove 601 is provided on the bottom surface of the film clip 6. The shape of the film mounting groove 601 is adapted to the outer shape of the film 7. The film 7 has a negative film with an image to be presented, and the film clip light-transmitting hole refracts the image negative film to the imaging group.

[0036] It should be noted that: in this embodiment, both sides of the film installation groove 601 are provided with condenser lens positioning grooves 802, and both sides of the upper end surface of the condenser lens 8 are provided with condenser lens positioning posts 803, and the condenser lens positioning posts 803 are adapted and correspondingly arranged with the condenser lens positioning grooves 802. When the condenser lens 8 is fixed to the bottom of the inner side of the lens barrel, the combination of the film clip 6 and the film 7 is installed on the condenser lens 8 by relying on the condenser lens positioning posts 803 and the condenser lens positioning grooves 802. After the condenser lens 8 is fixed, the light source can be stably refracted onto the film through the condenser lens 8, and then the image is presented on the irradiated object through the imaging lens behind the film clip 6.

[0037] The above description is only a preferred embodiment of the utility model and does not constitute any form of limitation to the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any technician familiar with the profession can make some changes, modifications and equivalent changes made by using the technical content disclosed above without departing from the scope of the technical solution of the utility model, which are all equivalent embodiments of the utility model. At the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the utility model still belong to the technical solution of the utility model.

Claims

1. A door welcome light, comprising a lens barrel, wherein an imaging group, a film group and a focusing group are arranged in sequence from the inside to the outside of the lens barrel, characterized in that: The imaging group includes 3-5 lenses, wherein the 3-5 lenses of the imaging group include at least one concave lens and one convex lens, and the focusing group includes 1-2 lenses; the film group includes a film clip and a film, the film card is mounted on the film clip, and the film clip is located between the third lens and the film.

2. The door welcome light according to claim 1, characterized in that: The imaging group includes three lenses, which are a first lens, a second lens and a third lens from the inside to the outside. The first lens is a double convex lens convex to the object side, the second lens is a concave-convex lens, and the third lens is a plano-convex lens convex to the image side.

3. The door welcome light according to claim 2, characterized in that: The focusing group includes a lens configured as a focusing lens, and the focusing lens is a double convex lens convex toward the image side.

4. The door welcome light according to claim 3, characterized in that: The refractive index of the second lens is greater than the refractive indexes of the first lens and the third lens.

5. The door welcome light according to claim 1, characterized in that: The lens barrel comprises a lens barrel upper cover and a lens barrel lower cover, an upper cover positioning groove is arranged in the middle of the lens barrel upper cover, a lower cover positioning protrusion is arranged on the lens barrel lower cover, and the upper cover positioning groove and the lower cover positioning protrusion are arranged correspondingly.

6. The door welcome light according to claim 5, characterized in that: The central protrusion in the lens barrel is provided to form a lens barrel partition ring, and the lens barrel partition ring divides the interior of the lens barrel into an upper imaging group mounting cavity and a focusing group mounting cavity. The imaging group is mounted in the imaging group mounting cavity, and the film group and the focusing group are mounted in the focusing group mounting cavity.

7. The door welcome light according to claim 6, characterized in that: A lens barrel light-transmitting hole is arranged in the middle of the upper end of the lens barrel, and the lens barrel light-transmitting hole is communicated with the inner cavity of the lens barrel; a protruding lens barrel positioning column is also arranged on the bottom surface of the lens barrel.

8. The door welcome light according to claim 1, characterized in that: A film clip light transmission hole is arranged in the middle of the film clip, and a film installation groove is arranged on the bottom surface of the film clip. The shape of the film installation groove is adapted to the outer shape of the film.

9. The door welcome light according to claim 8, characterized in that: Focusing lens positioning grooves are arranged on both sides of the film installation groove.

10. The door welcome light according to claim 9, characterized in that: Condensing lens positioning posts are arranged on both sides of the upper end surface of the condensing lens, and the condensing lens positioning posts are adapted to correspond to the condensing lens positioning grooves.

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