Fresnel tir integrally formed lamp
By integrating Fresnel patterns, TIR total internal reflection patterns, and corn kernel diffusion patterns into the inner cover of the vehicle lamp, the problem of low optical efficiency of traditional lamps in a limited space is solved, achieving a large-area, uniform lighting effect and efficient light utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU WENGUANG VEHICLE ACCESSORIES
- Filing Date
- 2025-08-29
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional vehicle lights are difficult to emit light over a large area within a limited installation space, resulting in poor light uniformity and low light utilization efficiency, leading to poor optical efficiency.
The design integrates Fresnel patterns, TIR total internal reflection patterns, and corn kernel diffusion patterns into the inner cover. Combined with transparent optical materials and a precise positioning structure, it achieves the synergistic effect of multiple optical structures, controlling light refraction and reflection to improve light utilization and light emission uniformity.
While ensuring the slim design of the lamps, the light utilization rate and light uniformity are improved, meeting spatial adaptability and regulatory requirements, and achieving a large-area, uniform and transparent light emission effect.
Smart Images
Figure CN224593117U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a Fresnel TIR total internal reflection integrated lamp. Background Technology
[0002] In the field of vehicle lighting, traditional lamps often employ a single optical structure design (such as a simple Fresnel lens or total internal reflection prism). However, such designs have significant limitations within limited installation space. The installation space for vehicle lamps (especially in the vertical direction) is often restricted by the vehicle body structure. If a thin design is desired, traditional single optical structures cannot achieve large-area light output. If the light-emitting area is forcibly expanded, the lamp thickness must be increased, which cannot be adapted to a compact mounting ring. Moreover, the single optical structure has limited ability to control light, which can easily lead to problems such as an overly bright central area and a darker edge area, resulting in poor light uniformity. At the same time, some lateral light cannot be effectively utilized, resulting in light waste and affecting the overall optical efficiency of the lamp. In view of this, this utility model proposes a Fresnel TIR total internal reflection integrated lamp to solve the above problems. Utility Model Content
[0003] The purpose of this invention is to provide a Fresnel TIR total internal reflection integrated luminaire to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A Fresnel TIR total internal reflection integrated luminaire includes a lampshade, an inner cover, a circuit board, a lamp housing, and mounting screws; The lampshade serves as the outer contour carrier of the lamp; The inner cover is the core optical component. Its inner surface has a Fresnel pattern in the central area, a TIR total internal reflection pattern in the peripheral area, and a corn kernel diffusion pattern on the outer surface. The circuit board serves as a light source carrier and is used in conjunction with the inner cover. The lamp housing, lamp shade, and inner cover work together to provide installation support and spatial positioning for each component; The mounting screws are located on the back of the lamp housing and are used to install the lamp onto the vehicle.
[0005] As an improvement to the above technical solution, the Fresnel pattern on the inner surface of the inner cover is a serrated ring structure, which is used to simulate the curvature of a lens to precisely control the angle of light refraction.
[0006] As an improvement to the above technical solution, the TIR total internal reflection pattern on the inner surface of the inner cover is a prism structure, which is used to guide light using the principle of total internal reflection and reflect lateral light to the target direction, thereby improving the brightness of the edge area.
[0007] As an improvement to the above technical solution, the corn kernel diffusion pattern on the outer surface of the inner cover is a concave pattern with a size of 1.5mm × 1.5mm; The corn kernel diffusion pattern is used to diffuse the beams output by the Fresnel pattern and the TIR total internal reflection pattern, and the diffusion angle is 15° in the left and right direction and 10° in the up and down direction.
[0008] As an improvement to the above technical solution, the Fresnel pattern in the central region of the inner surface of the inner cover and the TIR total internal reflection pattern in the peripheral region are integrally formed.
[0009] As an improvement to the above technical solution, the circuit board is positioned by a positioning platform and fastened to a preset position on the lamp housing with screws. The circuit board is equipped with an LED light board, and the light-emitting surface of the LED light board is arranged opposite to the inner surface of the inner cover.
[0010] As an improvement to the above technical solution, the inner cover is made of a transparent optical material, and the transparent optical material is PMMA or PC; The mounting screws are positioned circumferentially or symmetrically along the back of the lamp housing.
[0011] Compared with the prior art, the beneficial effects of this utility model are: By integrating Fresnel patterns and TIR total internal reflection patterns into different areas of the inner cover, and combining them with the corn kernel diffusion pattern on the outer surface, the synergistic effect of multiple optical structures is achieved. This effectively improves light utilization and light uniformity while ensuring the overall thin design of the lamp, and solves the problem that traditional single optical types cannot achieve both large-area light output and light emission effect in a limited space. The Fresnel pattern in the center of the inner surface of the inner cover can precisely control the angle of light refraction, while the TIR total internal reflection pattern in the periphery can efficiently guide light and optimize edge brightness using the principle of total internal reflection. The combination of the two enables the lamp to achieve a transparent and brilliant large-area light emission effect even in installation scenarios with limited vertical space, taking into account both spatial adaptability and optical performance. The corn kernel diffusion pattern on the outer surface can diffuse light at a specific angle, ensuring that the uniformity of light output meets the relevant regulatory requirements. At the same time, the lampshade, as the carrier of the shape outline, works in conjunction with the lamp housing, inner cover and other components to achieve a unity of optical performance, spatial dimensions and regulatory requirements while meeting the aesthetic requirements of the lamp design. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the present invention; Figure 3 This is a cross-sectional schematic diagram of the lamp housing of this utility model; Figure 4 This is a top view of the inner cover of this utility model; Figure 5 This is a side view of the inner cover of this utility model; Figure 6 This is a schematic diagram of the back structure of the inner cover of this utility model; Figure 7 For the present utility model Figure 6 Sectional view of AA.
[0013] In the diagram: 10, lampshade; 20, lamp housing; 30, mounting screw; 40, circuit board; 50, inner cover; 51, corn kernel diffusion pattern; 52, TIR total internal reflection pattern; 53, Fresnel pattern. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] Example: like Figure 1-7 As shown, this embodiment proposes a Fresnel TIR total internal reflection integrated luminaire, including a lampshade 10, an inner cover 50, a circuit board 40, a lamp housing 20, and mounting screws 30. The lampshade 10 serves as the outer contour carrier of the lamp; The inner cover 50 is the core optical component. Its inner surface has a Fresnel pattern 53 in the central area and a TIR total internal reflection pattern 52 in the peripheral area. Its outer surface has a corn kernel diffusion pattern 51. The circuit board 40 serves as a light source carrier and is used in conjunction with the inner cover 50. The lamp housing 20, lamp shade 10, and inner cover 50 cooperate to provide installation support and spatial positioning for each component; The mounting screws 30 are located on the back of the lamp housing 20 and are used to install the lamp onto the vehicle.
[0016] In this embodiment, when the lamp is in use, the circuit board 40 is fixed to the lamp housing 20 at a preset position to ensure that the light source on the circuit board 40 is positioned opposite to the inner surface of the inner cover 50; the inner cover 50, which integrates Fresnel pattern 53, TIR total internal reflection pattern 52 and corn kernel diffusion pattern 51, is installed inside the lamp housing 20, and then the lamp cover 10 is installed in conjunction with the lamp housing 20 to form the overall structure of the lamp; Then, using the mounting screws 30 located on the back of the lamp housing 20, the lamp is fixedly installed in the preset installation position on the vehicle, thus completing the assembly of the lamp with the vehicle. Finally, the power supply of the circuit board 40 is turned on. The circuit board 40, as the light source carrier, provides incident light, which is directed toward the inner surface of the inner cover 50. The Fresnel pattern 53 in the central area of the inner surface of the inner cover 50 refracts the light to control the light output angle. The TIR total internal reflection pattern 52 in the peripheral area guides the light using the principle of total internal reflection and reflects the side light to the target direction. The light that has been processed in the above way is then diffused through the corn kernel diffusion pattern 51 on the outer surface and then shines through the lamp cover 10 to realize the light emission function of the lamp. By integrating Fresnel pattern 53 and TIR total internal reflection pattern 52 into different areas of inner cover 50, and combining them with corn kernel diffusion pattern 51 on outer surface, the synergistic effect of multiple optical structures is achieved. This can effectively improve light utilization and light output uniformity while ensuring the overall thin design of the lamp. It solves the problem that traditional single optical type is difficult to balance large area light output and light emission effect in a limited space. The Fresnel pattern 53 in the central area of the inner surface of the inner cover 50 can precisely control the angle of light refraction, while the TIR total internal reflection pattern 52 in the periphery area can efficiently guide light and optimize edge brightness using the principle of total internal reflection. The combination of the two enables the lamp to achieve a transparent and brilliant large-area light emission effect even in installation scenarios with limited vertical space, taking into account both spatial adaptability and optical performance. The corn kernel diffusion pattern 51 on the outer surface can diffuse light at a specific angle, ensuring that the uniformity of light output meets the relevant regulatory requirements. At the same time, the lampshade 10, as the carrier of the shape outline, and the design of the lamp housing 20, inner cover 50 and other components, achieve the unity of optical performance, spatial size and regulatory requirements while meeting the aesthetic requirements of the lamp shape.
[0017] Specifically, the Fresnel pattern 53 on the inner surface of the inner cover 50 is a serrated ring structure, which is used to simulate the curvature of a lens to precisely control the angle of light refraction.
[0018] In this embodiment, the serrated ring structure simulates the curvature of a lens, which can reduce the thickness of the inner cover 50 to adapt to the compact installation space while precisely controlling the refraction angle of the incident light, thereby ensuring that the light propagates along a preset path and effectively improving the directionality and utilization of the light. This structural design allows the luminaire to still achieve a large-area, uniform light output effect that meets regulatory requirements in scenarios with limited vertical space, through precise control of the light refraction angle, combined with the TIR total internal reflection pattern 52 around the inner cover 50 and the corn kernel diffusion pattern 51 on the outer surface, while taking into account both the thin design and the optimization of optical performance.
[0019] Specifically, the TIR total internal reflection pattern 52 on the inner surface of the inner cover 50 is a prism structure, which is used to guide light using the principle of total internal reflection and reflect lateral light to the target direction, thereby improving the brightness of the edge area.
[0020] In this embodiment, the prism structure utilizes the principle of total internal reflection to efficiently guide light, reducing energy loss during transmission and improving light utilization. Simultaneously, this structure can specifically reflect laterally scattered light towards the target direction, effectively compensating for the insufficient brightness in the edge areas of traditional lamps, significantly improving the brightness of the edge areas and making the overall light output more uniform. When working in conjunction with the Fresnel pattern 53 in the center area of the inner cover 50, it can achieve large-area light emission within a limited installation space, ensuring a clear and brilliant light emission effect. This meets the dual requirements of optical performance and aesthetics for lamps in scenarios with limited vertical space, further enhancing the overall optical performance and practicality of the lamp.
[0021] Specifically, the corn kernel diffusion pattern 51 on the outer surface of the inner cover 50 is a concave pattern with a size of 1.5mm × 1.5mm; The corn kernel diffusion pattern 51 is used to diffuse the beams output by the Fresnel pattern 53 and the TIR total internal reflection pattern 52, and the diffusion angle is 15° in the left and right direction and 10° in the up and down direction.
[0022] In this embodiment, the specific-sized concave pattern structure and precise diffusion angle design can uniformly diffuse the light beam after refraction by the Fresnel pattern 53 and reflection by the TIR total internal reflection pattern 52, effectively eliminating light spots and uneven brightness that may occur during light transmission, and ensuring the brightness consistency of the light-emitting surface of the lamp. At the same time, the setting of this directional diffusion angle can not only meet the requirements of the transparency effect of large-area light emission, but also make the light emission range comply with the relevant regulations on the light emission angle of the lamp. In synergy with the Fresnel pattern 53 and TIR total internal reflection pattern 52 on the inner surface of the inner cover 50, the unity of optical performance, spatial adaptability and regulatory requirements is further realized, and the practical value and market applicability of the lamp are improved.
[0023] Specifically, the Fresnel pattern 53 in the central region of the inner surface of the inner cover 50 and the TIR total internal reflection pattern 52 in the peripheral region are integrally formed structures.
[0024] In this embodiment, the integrated design of the two patterns is achieved through a one-piece molding process, which eliminates the assembly gaps or positioning deviations that may occur when different optical structures are set separately. This ensures the relative positional accuracy of the Fresnel pattern 53 and the TIR total internal reflection pattern 52, thereby guaranteeing the synergistic consistency between the two in the light control process and improving the stability of optical performance. At the same time, the one-piece molding structure simplifies the production process of the inner cover 50, reduces the number of parts and assembly steps, and helps to reduce production and assembly costs and improve production efficiency. In addition, this structure enhances the overall structural strength and deformation resistance of the inner cover 50, extends the service life of the lamp, and further ensures the reliability of the optical performance of the lamp during long-term use. Together with components such as the lampshade 10 and the lamp housing 20, it better meets the requirements of the lamp's comprehensive performance in scenarios with limited vertical space.
[0025] Specifically, the circuit board 40 is positioned by a positioning platform and fastened to the lamp housing 20 at a preset position with screws; The circuit board 40 is provided with an LED light board, and the light-emitting surface of the LED light board is arranged opposite to the inner surface of the inner cover 50.
[0026] In this embodiment, the dual fixing method of positioning with a positioning table and screw fastening ensures the installation accuracy of the circuit board 40 on the lamp housing 20, avoiding the displacement of the light source position due to assembly deviation. At the same time, the structure in which the light-emitting surface of the LED lamp board is set opposite to the inner surface of the inner cover 50 ensures that the light emitted by the light source is efficiently incident on the Fresnel pattern 53 and TIR total internal reflection pattern 52 area of the inner cover 50 at a preset angle, reducing light loss and improving light utilization. This design keeps the relative position of the light source and the inner cover 50 stable, ensuring that the optical structure of the inner cover 50 can continuously and accurately control the light, thereby ensuring the consistency and stability of the light output effect of the lamp, meeting the requirements of optical performance during long-term use, and simplifying the assembly process, which is beneficial to quality control in mass production.
[0027] Specifically, the inner cover 50 is made of a transparent optical material, and the transparent optical material is PMMA or PC; The mounting screws 30 are arranged circumferentially or symmetrically along the back of the lamp housing 20.
[0028] In this embodiment, PMMA and PC materials have excellent light transmittance, which can ensure efficient light transmission within the inner cover 50, reduce light attenuation during transmission, and ensure that the light control effects of Fresnel pattern 53, TIR total internal reflection pattern 52 and corn kernel diffusion pattern 51 are fully utilized. At the same time, these materials have good mechanical strength and weather resistance, and can adapt to temperature changes, vibration and other working conditions in the vehicle operating environment, extending the service life of the inner cover 50 and ensuring the long-term stable optical performance of the lamp. The mounting screws 30, arranged circumferentially or symmetrically, ensure that the force between the lamp and the vehicle mounting position is evenly distributed, avoiding installation deformation caused by excessive local stress, and ensuring that the lamp is accurately and stably positioned after installation.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A Fresnel TIR Total Internal Reflection integrated luminaire, characterized by: Includes lamp cover (10), inner cover (50), circuit board (40), lamp housing (20) and mounting screws (30); The lampshade (10) serves as the outer contour carrier of the lamp; The inner cover (50) is the core optical component. Its inner surface has a Fresnel pattern (53) in the central area, a TIR total internal reflection pattern (52) in the peripheral area of the inner surface, and a corn kernel diffusion pattern (51) on the outer surface. The circuit board (40) serves as a light source carrier and is used in conjunction with the inner cover (50); The lamp housing (20) cooperates with the lamp shade (10) and inner cover (50) to provide installation support and spatial positioning for each component; The mounting screws (30) are located on the back of the lamp housing (20) for mounting the lamp to the vehicle.
2. A Fresnel TIR all-in-one lamp according to claim 1, characterized in that: The Fresnel pattern (53) on the inner surface of the inner cover (50) is a serrated ring structure used to simulate the curvature of a lens in order to precisely control the angle of light refraction.
3. A Fresnel TIR all-in-one lamp according to claim 1, characterized in that: The TIR total internal reflection pattern (52) on the inner surface of the inner cover (50) is a prism structure, which is used to guide light using the principle of total internal reflection and reflect lateral light to the target direction, thereby improving the brightness of the edge area.
4. A Fresnel TIR all-in-one lamp according to claim 1, characterized in that: The corn kernel diffusion pattern (51) on the outer surface of the inner cover (50) is a concave pattern with a size of 1.5mm × 1.5mm; The corn kernel diffusion pattern (51) is used to diffuse the beams output by the Fresnel pattern (53) and the TIR total internal reflection pattern (52), and the diffusion angle is 15° in the left and right direction and 10° in the up and down direction.
5. A Fresnel TIR all-in-one lamp according to claim 1, characterized in that: The Fresnel pattern (53) in the central region of the inner surface of the inner cover (50) and the TIR total internal reflection pattern (52) in the peripheral region are integrally formed.
6. A Fresnel TIR all-in-one lamp according to claim 1, characterized in that: The circuit board (40) is positioned by a positioning platform and fastened to the lamp housing (20) at a preset position with screws; The circuit board (40) is provided with an LED light board, and the light-emitting surface of the LED light board is arranged opposite to the inner surface of the inner cover (50).
7. A Fresnel TIR all-in-one lamp according to claim 1, characterized in that: The inner cover (50) is made of a transparent optical material, and the transparent optical material is PMMA or PC; The mounting screws (30) are positioned circumferentially or symmetrically along the back of the lamp housing (20).