Dynamic projection equipment

Abstract

The utility model discloses a dynamic projection device which comprises a lamp holder and a projection assembly, and the lamp holder is provided with at least two groups of light sources which can operate independently. The projection assemblies and the light sources are arranged in a one-to-one correspondence mode. Each projection assembly comprises a lens cone. The lens cones are arranged on the corresponding light sources in a covering mode, and a condensing lens, a film and a projection lens are sequentially arranged in the lens cones in the light path direction. An adjusting opening capable of being opened and closed is formed in the position, close to the film, of one side of the lens cone, and an elastic piece capable of abutting against the film is inserted into the adjusting opening in an interference mode. According to the utility model, the film projection is used to control the cost, and the dynamic projection effect is realized at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted projection, in particular to a dynamic projection device. Background Art

[0002] In-vehicle projection systems can improve the safety of cars, motorcycles, and electric vehicles while also meeting the personalized needs of users. Currently, there are two main types of in-vehicle projection: static projection, where the projected image is static and can only be displayed as a picture. Dynamic projection, on the other hand, produces dynamic images, which are more eye-catching. Existing technologies for dynamic projection often use MLA (Multi Lens Arry) or DLP (Digital Light Processing) projection. However, MLA projection has a narrow field of view (typically only 20°), while DLP projection requires DMD components, which are relatively expensive and hinder its widespread adoption.

[0003] Currently, the field of view of film projection equipment can reach 120° and the price is reasonable, but film projection equipment can only perform static projection. Therefore, how to achieve dynamic projection of film projection equipment is an urgent problem to be solved in this field. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the purpose of the present invention is to provide a dynamic projection device that achieves the effect of dynamic projection while controlling the cost by using film projection.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: a dynamic projection device, comprising

[0006] A lamp holder having at least two sets of independently operable light sources;

[0007] Projection assemblies are arranged one by one corresponding to the light sources, and each group of projection assemblies includes a lens barrel; the lens barrel cover is arranged on the corresponding light source, and a condenser lens, a film, and a projection lens are arranged in sequence along the light path direction;

[0008] An adjustment opening that can be opened and closed is provided on one side of the lens barrel near the film, and an elastic piece that can press against the film is interference-inserted on the adjustment opening.

[0009] The beneficial effects of the dynamic projection device of the utility model are:

[0010] By using independently operated light sources and projection components corresponding to the light sources, each group of projection components can project independently, that is, the projection actions of multiple groups of projection components do not interfere with each other; in the projection component, the setting of the lens barrel can avoid the problem of light crosstalk between different groups of light sources, and the setting of the focusing lens, film, and projection lens allows an independent light path channel to be formed in each lens barrel to project the projection pattern on the corresponding film; when the multiple groups of light sources are connected to the controller for communication, the controller controls the multiple groups of light sources to light up or turn off in turn, so that the projection patterns of the multiple groups of projection components can form a dynamic projection animation effect; an adjustment opening is opened on the lens barrel, which makes it easy for people to reach into the lens barrel to adjust the position of the film, so that the projection pattern on the film can be adjusted to the specified projection direction and angle; then, the elastic member elastically presses the film to suppress the movement of the film in the lens barrel by applying elastic force, thereby improving the position accuracy of the film.

[0011] Specifically, the light source is an LED with an internal driver IC. The LED with an internal driver IC includes conductive terminals, an internal driver IC, and a light-emitting chip. The conductive terminals are fixedly attached to the lamp holder, and the internal driver IC and light-emitting chip are both fixedly attached to the side of the conductive terminals facing the lens barrel. The internal driver IC and light-emitting chip are electrically connected via wires. Using an LED with an internal driver IC not only enables independent control of individual LEDs, but also saves installation space required for an additional IC control module.

[0012] Furthermore, a support plate extending into the lens barrel and capable of supporting the film is provided at the adjustment opening to enhance support for the film.

[0013] Specifically, the film sheet includes a film body with a projection pattern provided in the middle. Extending outward from the edge of the film body is at least one plug-in block that can be plugged into the lens barrel. The plug-in block ensures the film sheet fits securely within the lens barrel, defining the film sheet's position within the lens barrel.

[0014] Specifically, the elastic member is a plunger, comprising a plunger body capable of abutting against the film body, and an end cap integrally provided at one end of the plunger body away from the film body. The plunger can both block the adjustment opening to prevent light crosstalk and elastically apply pressure to the film.

[0015] Furthermore, a receiving groove for inserting the end cap is provided on a side of the adjustment opening away from the film, and a notch is provided on the receiving groove. The notch facilitates manual force application on the end cap to pull the plunger out of the adjustment opening.

[0016] Furthermore, the lens barrel is assembled from two semicircular arc-shaped shells, and the adjustment opening is located on one of the shells.

[0017] Furthermore, a light outlet is formed on a side of the lens barrel away from the lamp holder, and a diameter of the light outlet gradually decreases from close to the lamp holder to away from the lamp holder.

[0018] Furthermore, the lamp holder is provided with a limiting ring block arranged in a one-to-one correspondence with the lens barrel to limit the position of the lens barrel.

[0019] Furthermore, the lamp holder is also covered with a soft light lampshade, and all the projection components are located in the soft light lampshade, making the projection pattern softer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic cross-sectional view of a dynamic projection device according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic cross-sectional view of a projection assembly according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic structural diagram of the lens barrel according to an embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the film of the utility model.

[0024] In the picture:

[0025] 1-lamp holder; 11-limiting ring block; 2-light source; 21-conductive terminal; 22-internal drive IC; 23-light-emitting chip; 3-lens barrel; 31-adjustment opening; 311-notch; 32-support plate; 33-light outlet; 4-condensing lens; 5-film; 51-film body; 52-projection pattern; 53-insert block; 6-projection lens; 7-elastic part; 8-soft light cover. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0027] Example

[0028] See attached Figure 1-3As shown, a dynamic projection device of the present invention includes a lamp holder 1 and a projection assembly, wherein the lamp holder 1 is provided with at least two sets of independently operable light sources 2. The projection assemblies are arranged in a one-to-one correspondence with the light sources 2. Each projection assembly includes a lens barrel 3, which is covered over the corresponding light source 2. The interior of the lens barrel 3 is sequentially arranged along the optical path with a focusing lens 4, a film 5, and a projection lens 6. A closable adjustment opening 31 is provided on one side of the lens barrel 3 near the film 5. An elastic member 7 that presses against the film 5 is inserted into the adjustment opening 31 through interference fit.

[0029] First, by using independently operated light sources 2 and projection assemblies corresponding to these light sources 2, each projection assembly can independently project. Therefore, the projection operations of multiple projection assemblies do not interfere with each other. Within the projection assembly, the lens barrel 3 forms independent optical paths, preventing crosstalk between different light sources 2. Furthermore, an adjustment opening 31 in the lens barrel 3 facilitates access to adjust the position and angle of the film 5, thereby allowing the projection pattern on the film 5 to be adjusted to a specified projection direction and angle. The interference fit of the elastic member 7 against the adjustment opening 31 prevents light from escaping through the adjustment opening 31. Furthermore, the elastic pressure exerted by the elastic member 7 on the film 5 suppresses movement of the film 5 within the lens barrel 3 through elastic force, thereby improving the positioning accuracy of the film 5. Once the multiple light sources 2 are communicatively connected to a controller, the controller can control the multiple light sources 2 to illuminate or deactivate in a cycle, thereby creating a dynamic projection animation effect.

[0030] In some embodiments, see Appendix Figure 2 As shown, light source 2 is an LED with an internal driver IC. The LED with internal driver IC includes a conductive terminal 21, an internal driver IC 22, and a light-emitting chip 23. The conductive terminal 21 is fixedly connected to the lamp holder 1. The internal driver IC 22 and the light-emitting chip 23 are both fixedly connected to the side of the conductive terminal 21 facing the lens barrel 3. The internal driver IC 22 and the light-emitting chip 23 are electrically connected via wires. The LED with internal driver IC not only achieves independent control of each LED, but also saves the installation space required for an additional IC control module. The direct connection between the internal driver IC and the light-emitting chip via wires achieves the purpose of integrating the internal driver IC and the light-emitting chip, ensuring that a single internal driver IC can independently control the illumination of a single LED. The independent control of light source 2 enables each group of projection components to project independently, and dynamic projection can be achieved by utilizing the difference in the lighting time of different groups of light sources.

[0031] In some embodiments, see Appendix Figure 2As shown, a support plate 32 is provided at the adjustment opening 31, extending into the lens barrel 3 and capable of supporting the film 5. The provision of the support plate 32 can enhance the support for the film 5 and prevent the film 5 from slipping near the adjustment opening 31 during adjustment.

[0032] In some embodiments, the elastic member 7 is a plunger. The plunger 7 includes a plunger body that can abut against the film 5. An end cap is integrally provided on the end of the plunger body that is distal to the film body. The plunger not only seals the adjustment opening to prevent light crosstalk, but also elastically applies pressure to the film 5. For example, the plunger can be made of rubber.

[0033] Furthermore, a receiving groove for inserting the end cap is provided on the side of the adjustment opening 31 away from the film 5, and the receiving groove is provided with a notch 311. The notch 311 is provided to facilitate manual force on the end cap to pull the plunger out of the adjustment opening 31.

[0034] In some embodiments, a light outlet 33 is defined on the side of the lens barrel 3 away from the lamp holder 1. The diameter of the light outlet 33 gradually decreases from the lamp holder 1 toward the lamp holder 1. Slots corresponding to the film 5, condenser lens 4, and projection lens 6 are defined within the lens barrel 3. To facilitate installation of the film 5, condenser lens 4, and projection lens 6, the lens barrel 3 can be assembled from two semicircular shells, with the adjustment opening 31 located in one of the shells.

[0035] In some embodiments, see Appendix Figure 4 As shown, the film 5 includes a film body 51, a projection pattern 52 is provided in the middle of the film body 51, and at least one plug-in block 53 extends outward from the edge of the film body 51, which can be plugged into the lens barrel 3. The provision of the plug-in block 53 enables the plug-in fit between the film 5 and the lens barrel 3, and defines the position of the film 5 within the lens barrel 3. By way of example, three plug-in blocks 53 are provided.

[0036] It should be noted that the projection pattern in the figure is only an example and can be replaced with other patterns in actual use.

[0037] In some embodiments, see Appendix Figure 2 As shown, the lamp holder 1 is provided with a limiting ring block 11 corresponding to the lens barrel 3 to limit the position of the lens barrel 3.

[0038] In some embodiments, see Appendix Figure 1 As shown, the lamp holder 1 is also covered with a soft light lampshade 8, and all projection components are located in the soft light lampshade 8. The projection pattern is softer through the setting of the soft light lampshade 8. In actual application, the soft light lampshade 8 can be made of transparent material.

[0039] The above implementation methods are only for illustrating the technical concept and features of the utility model. Its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A dynamic projection device, characterized in that: include A lamp holder having at least two sets of independently operable light sources; Projection assemblies are arranged one by one corresponding to the light sources, and each group of projection assemblies includes a lens barrel; the lens barrel cover is arranged on the corresponding light source, and a condenser lens, a film, and a projection lens are arranged in sequence along the light path direction; An adjustment opening that can be opened and closed is provided on one side of the lens barrel near the film, and an elastic piece that can press against the film is interference-inserted on the adjustment opening.

2. The dynamic projection device according to claim 1, characterized in that: The light source is an LED with an internal drive IC, which includes a conductive terminal, an internal drive IC, and a light-emitting chip. The conductive terminal is fixed to the lamp holder, and the internal drive IC and the light-emitting chip are both fixed on the side of the conductive terminal facing the lens barrel, and the internal drive IC and the light-emitting chip are electrically connected by wires.

3. The dynamic projection device according to claim 1, characterized in that: A support plate extending into the lens barrel and capable of supporting the film is provided at the adjustment opening.

4. The dynamic projection device according to claim 1, characterized in that: The film includes a film body, a projection pattern is provided in the middle of the film body, and at least one plug-in block which can be plugged into the lens barrel is extended outward from the edge of the film body.

5. The dynamic projection device according to claim 4, characterized in that: The elastic member is a plunger, and the plunger includes a plunger body capable of abutting against the film body. An end of the plunger body away from the film body is integrally provided with an end cap.

6. The dynamic projection device according to claim 5, characterized in that: A receiving groove for embedding the end cap is provided on a side of the adjustment opening away from the film, and a notch is provided on the receiving groove.

7. The dynamic projection device according to claim 1, characterized in that: The lens barrel is assembled from two semicircular arc-shaped shells, and the adjustment opening is located on one of the shells.

8. The dynamic projection device according to claim 1, characterized in that: A light outlet is formed on a side of the lens barrel away from the lamp holder, and a diameter of the light outlet gradually decreases from close to the lamp holder to away from the lamp holder.

9. The dynamic projection device according to claim 1, characterized in that: The lamp holder is provided with a limiting ring block which is arranged in a one-to-one correspondence with the lens barrel.

10. The dynamic projection device according to claim 1, characterized in that: The lamp holder is also covered with a soft light lampshade, and all the projection components are located in the soft light lampshade.

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