Vehicle-mounted color film projection device
The vehicle-mounted color film projection device, designed with an RGB light source module and a light splitting and combining component, solves the problem of single-color projection, achieves high brightness and rich color effects, simplifies the structure, and reduces costs.
Patent Information
- Application Number
- CN202520540653.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing automotive film projection devices can only project a single color, which cannot meet users' needs for personalized and diverse lighting effects. Furthermore, existing RGB color switching solutions are complex in structure and expensive.
It adopts an RGB light source module, a beam splitter and combiner component and a film projection module. Through the design of high-brightness LED beads and beam splitter and combiner component, combined with transmission and reflection beam splitter, the RGB three-color light is combined. The film is engraved with a preset pattern, and the projection lens module forms a clear image.
It enables color film projection, improves projection brightness and color saturation, simplifies the structure, reduces production costs, and enhances applicability and user experience.
Smart Images
Figure CN223842304U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle projection technology, and in particular to a vehicle-mounted color film projection device. Background Technology
[0002] Color film projection technology is a projection technique that uses a light source to illuminate a film containing a color image, and then uses an optical system to project the image onto a target surface. The following is a detailed description of this technology:
[0003] Working Principle: Light Source: Commonly used light sources include incandescent lamps, xenon lamps, and LEDs. LEDs are widely used in modern film projection lights due to their high efficiency, long lifespan, and high color saturation. Film: Film is a transparent thin film printed with a color image. Film is typically produced using film technology, involving processes such as exposure, development, and fixing to form a transparent and stable image. Optical System: The optical system includes a focusing system and an imaging system. The focusing system converts the light emitted from the light source into uniform, parallel light rays. Through the film's blocking effect, only the light rays containing the pattern can pass through. The imaging system then projects the inverted small pattern on the film into a magnified, upright pattern.
[0004] Manufacturing Process: Film Substrate Preparation: The film substrate is made of a transparent polyester film with high transparency and flatness to facilitate the coating of the dye layer and imaging. Dye Coating: The dye layer of color film typically consists of three different dyes: cyan, magenta, and yellow. These dyes are coated onto the film substrate and bond with it through a chemical reaction. Development Process: The purpose of development is to bind the dyes exposed to light together to form a color image. Chemicals used in the development process include developer, accelerator, stop agent, and fixer. Washing and Drying: Washing removes undeveloped dyes and chemical residues, ensuring the sharpness and stability of the color image. Drying prevents the dye layer from becoming damp and deformed, affecting image quality. Cutting and Packaging: The color film is cut into segments of different sizes for use in cameras and packaged to prevent dust and contamination.
[0005] Application scenarios: Car projection lights: Film lens type projection lights are widely used in car door sills, exterior rearview mirrors and other parts to project brand logos or patterns, enhancing the car's technological feel and sense of ceremony.
[0006] However, existing technologies have the following drawbacks: traditional automotive film projectors can typically only project a single color, failing to meet users' demands for personalized and diverse lighting effects. While some existing technologies utilize RGB principles for color switching, most are complex in structure and expensive, making them difficult to promote and apply in the automotive film projector field.
[0007] The above problems urgently need to be solved. Utility Model Content
[0008] The purpose of this invention is to provide a vehicle-mounted color film projection device, which aims to solve at least one technical problem existing in the prior art.
[0009] This utility model embodiment provides a vehicle-mounted color film projection device, the device comprising: an RGB light source module, a beam splitting and combining component, and a film projection module; the RGB light source module consists of red LED beads, green LED beads, and blue LED beads, used to emit red, blue, and green light; the beam splitting and combining component consists of three sets of focusing lenses, a first beam splitter, and a second beam splitter, the output ends of the green LED beads and red LED beads are respectively connected to the first and second sets of focusing lenses, the output ends of the first and second sets of focusing lenses are provided with a first beam splitter, the output end of the blue LED beads is provided with a third set of focusing lenses, the output end of the third set of focusing lenses is provided with a second beam splitter, and the output end of the first beam splitter is provided with a second beam splitter, the RGB three-color light is combined through the first and second beam splitters; a film projection module is provided after the second beam splitter, the film projection module is used to focus the combined RGB three-color light to form a preset pattern and project it onto the target area.
[0010] Furthermore, the film projection module consists of a film and a projection lens module. The output end of the second beam splitter is provided with a film, and the output end of the film is provided with a projection lens module. The RGB three-color light after light combining passes through the film and is focused by the projection lens module to form a preset pattern and projected onto the target area.
[0011] Furthermore, the first beam splitter is a transmissive GB reflective R beam splitter, and its surface is coated with a dichroic film that transmits GB and reflects R; the second beam splitter is a transmissive RG reflective B beam splitter, and its surface is coated with a dichroic film that transmits RG and reflects B.
[0012] Furthermore, the first group of focusing lenses includes a first focusing lens and a second focusing lens, the second group of focusing lenses includes a third focusing lens and a fourth focusing lens, and the third group of focusing lenses includes a fifth focusing lens and a sixth focusing lens.
[0013] Furthermore, the projection lens module includes a first projection lens, a second projection lens, and a third projection lens arranged linearly.
[0014] Furthermore, the device also includes a control module, the output of which is connected to the RGB light source module and used to control the brightness of the red LED beads, green LED beads and blue LED beads in the RGB light source module.
[0015] Furthermore, the device also includes a drive module, the output of which is connected to the control module and the RGB light source module, for driving the control module and the RGB light source module to work.
[0016] Furthermore, the device also includes a communication module, which is used to connect the control module and the user client to enable interaction between the user client and the control module.
[0017] Furthermore, the control module integrates a microcontroller or an embedded processor.
[0018] Furthermore, the device also includes a power supply module, which provides operating voltage to the control module, RGB light source module, drive module, and communication module.
[0019] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This application provides a vehicle-mounted color film projection device, which includes an RGB light source module, a light splitting and combining component, and a film projection module. The RGB light source module uses high-brightness LED beads, and combined with the design of the light splitting and combining component, it effectively improves the projection brightness and color saturation, making the projected image clearer and more vibrant; it solves the problem of single color in film projection; and it can achieve color change without replacing the LED beads; the entire device has a simple structure, effectively reducing production costs and improving the applicability of the device. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of a vehicle-mounted color film projection device provided in an embodiment of this utility model.
[0022] Figure 2 This is a schematic diagram of another vehicle-mounted color film projection device provided in this embodiment of the utility model.
[0023] The attached figures are labeled as follows:
[0024] RGB light source module-1, beam splitter and combiner assembly-2, film projection module-3, control module-4, driver module-5, communication module-6, power supply module-7, red LED bead-10, green LED bead-11 and blue LED bead-12, first beam splitter-20, second beam splitter-21, first focusing lens group-22, second focusing lens group-23, third focusing lens group-24, first focusing lens-220, second focusing lens-221, third focusing lens-230, fourth focusing lens-231, fifth focusing lens-240, sixth focusing lens-241, film-30, projection lens module-31, first projection lens-310, second projection lens-311, third projection lens-312. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “upper end,” “lower end,” and “middle” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.
[0027] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. "A plurality of" means two or more, unless otherwise explicitly specified.
[0028] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0029] Example
[0030] To facilitate subsequent understanding, the overall inventive concept of this utility model is described here: This utility model provides a vehicle-mounted color film projection device, which includes: an RGB light source module, a beam splitting and combining component, and a film projection module. The RGB light source module emits red, blue, and green light. The beam splitting and combining component consists of three sets of focusing lenses, a first beam splitter, and a second beam splitter. The three sets of focusing lenses are used to focus the light, improving light utilization. The first beam splitter causes total internal reflection of the R light and direct transmission of the G light, thereby achieving beam combining of the R and G lights. The second beam splitter causes total internal reflection of the B light and direct transmission of the RG light, completing the beam combining of the RGB three colors. The film projection module is used to engrave a preset pattern on the film. The combined light passes through the film and is focused by the projection lens to form an image. By using high-brightness LED beads in the RGB light source module and combining them with the beam splitting and combining component, the projection brightness and color saturation are effectively improved, making the projected image clearer and more vibrant.
[0031] The specific implementation method is as follows:
[0032] like Figure 1-2 The diagram shown is a structural schematic of a vehicle-mounted color film projection device provided in an embodiment of this utility model.
[0033] As an example, the device includes: an RGB light source module 1, a beam splitter and combiner assembly 2, and a film projection module 3; the RGB light source module 1 consists of red LED beads 10, green LED beads 11, and blue LED beads 12, used to emit red, blue, and green light; the beam splitter and combiner assembly 2 consists of three sets of focusing lenses, a first beam splitter 20, and a second beam splitter 21, the output terminals of the green LED beads 11 and the red LED beads 10 are respectively connected to the first set of focusing lenses 22 and the second set of focusing lenses 23, the first set of focusing lenses 22... A first beam splitter 20 is provided at the output end of the second group of focusing lenses 23, and a third group of focusing lenses 24 is provided at the output end of the blue LED lamp bead 12. A second beam splitter 21 is provided at the output end of the third group of focusing lenses 24, and the second beam splitter 21 is provided at the output end of the first beam splitter 20. The RGB three-color light is combined through the first beam splitter 20 and the second beam splitter 21. A film projection module 3 is provided after the second beam splitter 21. The film projection module 3 is used to focus the combined RGB three-color light to form a preset pattern and project it onto the target area.
[0034] In some feasible implementations, the film projection module 3 consists of a film 30 and a projection lens module 31. The output end of the second beam splitter 21 is provided with a film 30, and the output end of the film 30 is provided with a projection lens module 31. The combined RGB three-color light passes through the film 30 and is focused by the projection lens module 31 to form a preset pattern and projected onto the target area.
[0035] In some feasible implementations, the first beam splitter 20 is a transmissive GB / reflective R beam splitter, with a dichroic film that transmits GB and reflects R on its surface; the second beam splitter 21 is a transmissive RG / reflective B beam splitter, with a dichroic film that transmits RG and reflects B on its surface. Specifically, the output end of the second focusing lens 221 is provided with a transmissive GB / reflective R beam splitter 20, with a dichroic film that transmits GB and reflects R on its surface, so that R light (red light) undergoes total internal reflection on it, and G light (green light) passes directly through, thereby achieving beam combining of R light and G light; the output end of the sixth focusing lens 241 is provided with a transmissive RG / reflective B beam splitter 21, with a dichroic film that transmits RG and reflects B on its surface, so that B light (blue light) undergoes total internal reflection on it, and RG light passes directly through, completing the beam combining of RGB three colors, and the combined light is projected onto the film 30.
[0036] In some feasible implementations, the first group of focusing lenses 22 includes a first focusing lens 220 and a second focusing lens 221, the second group of focusing lenses 23 includes a third focusing lens 230 and a fourth focusing lens 231, and the third group of focusing lenses 24 includes a fifth focusing lens 240 and a sixth focusing lens 241. Specifically, the green light emitted by the green LED bead 11 is focused by the first focusing lens 220 and the second focusing lens 221 and then shines on the first beam splitter 20. The green light is directly transmitted after passing through the first beam splitter 20. The red light emitted by the red LED bead 10 is focused by the third focusing lens 230 and the fourth focusing lens 231 and then shines on the first beam splitter 20. The red light is directly internally reflected after passing through the first beam splitter 20, thus achieving beam combining of R light and G light. The blue light emitted by the blue LED bead 12 is focused by the fifth focusing lens 240 and the sixth focusing lens 241 and then shines on the second beam splitter 21. The blue light is directly internally reflected after passing through the second beam splitter 21. The beam combining of R light and G light output from the first beam splitter 20 is directly transmitted through the second beam splitter 21. Therefore, the light finally output by the second beam splitter 21 is the beam combining of R light, G light and B light.
[0037] In some feasible embodiments, the projection lens module 31 includes a first projection lens 310, a second projection lens 311, and a third projection lens 312 arranged linearly. Specifically, the combined beam of the three-color light output from the second beam splitter 21 illuminates the film 30, which has a preset pattern. The light rays after passing through the film 30 pass sequentially through the first projection lens 310, the second projection lens 311, and the third projection lens 312 and are focused to form an image identical to the preset pattern on the film 30, which is then projected onto a target area, such as the ground.
[0038] In some feasible implementations, the device further includes a control module 4, whose output is connected to the RGB light source module 1, for controlling the brightness of the red LED beads 10, green LED beads 11, and blue LED beads 12 in the RGB light source module 1. Specifically, the control module 4 controls the brightness of each color LED bead in the RGB light source module 1, thereby mixing different colors of light. It can employ a microcontroller or embedded processor to achieve more precise color control and richer functionality.
[0039] In some feasible implementations, the device further includes a drive module 5, the output of which is connected to the control module 4 and the RGB light source module 1, for driving the control module 4 and the RGB light source module 1 to work.
[0040] In some feasible implementations, the device further includes a communication module 6, which connects the control module 4 and the user client to enable interaction between the user client and the control module 4. Specifically, users can remotely control color switching via mobile apps or other terminal devices, enabling convenient remote operation. Through the wireless communication module 6, users can remotely control color switching using mobile apps or other terminal devices, improving user convenience and experience.
[0041] In some feasible implementations, the device further includes a power supply module 7, which provides operating voltage to the control module 4, the RGB light source module 1, the drive module 5, and the communication module 6.
[0042] In some feasible implementations, the device operates as follows: Preset color modes: The user presets multiple color modes via the control module, each corresponding to a different combination of RGB light source brightness. Select color mode: The user selects a preset color mode according to their needs. Control light source brightness: The control module controls the brightness of each color LED in the RGB light source module according to the selected color mode. Project pattern: The light emitted by the light source passes through the film and is projected onto the target area via the projection lens, forming a pattern with preset colors.
[0043] In some feasible implementations, the device needs to be assembled and debugged before actual use. The assembly process includes: first, installing the LED beads in the RGB light source module 1 on the corresponding circuit board according to the design requirements and connecting the focusing lens. Then, installing the GB-transmitting RGB beam splitter 20 and the RG-transmitting RGB beam splitter 21 on suitable brackets, ensuring accurate positioning and achieving good beam splitting and combining effects. Fixing the film 30 within the frame of the film projection module and installing the first projection lens 310, second projection lens 311, and third projection lens 312. Installing the control module 4, drive module 5, power module 7, and wireless communication module 6 in the system's control box and connecting the lines between the modules. The debugging process includes: turning on the power and using the control module 4 to debug the RGB light source module 1, testing the accuracy of brightness control for each color LED bead by presetting different color modes. Checking the operation of the beam splitting and combining component 2 and observing whether the beam combining effect of the RGB three colors is good. Adjusting the focal length and angle of the projection lens to make the pattern projected onto the target area clear and complete. The wireless communication module is paired and tested to ensure that users can remotely control color switching via mobile apps and other terminal devices.
[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A vehicle-mounted color film projection device, characterized in that, The device includes: an RGB light source module (1), a light splitting and combining component (2), and a film projection module (3). The RGB light source module (1) consists of red LED beads (10), green LED beads (11) and blue LED beads (12), and is used to emit red, blue and green light. The beam splitting and combining component (2) consists of three sets of focusing lenses, a first beam splitter (20), and a second beam splitter (21). The output ends of the green LED bead (11) and the red LED bead (10) are respectively connected to the first set of focusing lenses (22) and the second set of focusing lenses (23). The first set of focusing lenses (22) and the second set of focusing lenses (23) are provided with the first beam splitter (20). The output end of the blue LED bead (12) is provided with the third set of focusing lenses (24). The output end of the third set of focusing lenses (24) is provided with the second beam splitter (21). The output end of the first beam splitter (20) is provided with the second beam splitter (21). The RGB three-color light is combined through the first beam splitter (20) and the second beam splitter (21). A film projection module (3) is provided behind the second beam splitter (21). The film projection module (3) is used to focus the combined RGB three-color light to form a preset pattern and project it onto the target area.
2. The vehicle-mounted color film projection device according to claim 1, characterized in that, The film projection module (3) consists of a film (30) and a projection lens module (31). The output end of the second beam splitter (21) is provided with a film (30), and the output end of the film (30) is provided with a projection lens module (31). The combined RGB three-color light passes through the film (30) and is focused by the projection lens module (31) to form a preset pattern and project it onto the target area.
3. The vehicle-mounted color film projection device according to claim 1, characterized in that, The first beam splitter (20) is a transmissive GB reflective R beam splitter, and its surface is coated with a dichroic film that transmits GB and reflects R. The second beam splitter (21) is a transmissive RG reflective B beam splitter, and its surface is coated with a dichroic film that transmits RG and reflects B.
4. The vehicle-mounted color film projection device according to claim 1, characterized in that, The first group of focusing lenses (22) includes a first focusing lens (220) and a second focusing lens (221), the second group of focusing lenses (23) includes a third focusing lens (230) and a fourth focusing lens (231), and the third group of focusing lenses (24) includes a fifth focusing lens (240) and a sixth focusing lens (241).
5. The vehicle-mounted color film projection device according to claim 2, characterized in that, The projection lens module (31) includes a first projection lens (310), a second projection lens (311), and a third projection lens (312) arranged linearly.
6. The vehicle-mounted color film projection device according to claim 1, characterized in that, The device also includes a control module (4), the output of which is connected to the RGB light source module (1) and is used to control the brightness of the red LED beads (10), green LED beads (11) and blue LED beads (12) in the RGB light source module (1).
7. The vehicle-mounted color film projection device according to claim 6, characterized in that, The device also includes a drive module (5), the output of which is connected to the control module (4) and the RGB light source module (1) to drive the control module (4) and the RGB light source module (1) to work.
8. The vehicle-mounted color film projection device according to claim 6, characterized in that, The device further includes a communication module (6), which is used to connect the control module (4) and the user client to enable interaction between the user client and the control module (4).
9. The vehicle-mounted color film projection device according to claim 6, characterized in that, The control module (4) integrates a microcontroller or an embedded processor.
10. The vehicle-mounted color film projection device according to any one of claims 6-8, characterized in that, The device also includes a power supply module (7), which provides operating voltage for the control module (4), the RGB light source module (1), the drive module (5) and the communication module (6).