Novel large-angle LED lamp bead
By designing the recess at the center apex of the LED lamp bead ball head and increasing the luminous angle to above 170 degrees, the problem of insufficient luminous angle of the existing LED lamp bead is solved, and a larger luminous angle and better light transmission are achieved, which is suitable for the fill light needs of large field-of-view angle equipment.
Patent Information
- Application Number
- CN202422228768.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The existing LED lamp beads have insufficient luminous angles, which cannot fully meet the fill light requirements of large field-of-view camera equipment, resulting in the problem of dark areas in the four corners of the fill light picture.
A new type of large-angle LED lamp bead was designed. By setting a recess at the center apex of the lamp bead ball head, the light emission angle is increased to more than 170 degrees. A combined structure of the base, LED lamp bead body and a light transmitting cover is adopted. The bumps of the light transmitting cover fill the sinking groove to prevent light from being exposed.
It realizes a larger luminous angle, reduces the design limitations of large field-of-view angle equipment, solves the problem of dark areas in the four corners of the fill-light picture, and improves the light transmittance and practicality of LED lamp beads.
Smart Images
Figure CN222977936U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an LED lamp bead, in particular to a novel large-angle LED lamp bead. Background Art
[0002] LED (Light Emitting Diode) is the English abbreviation of light emitting diode, which is a solid-state semiconductor device that can directly convert electrical energy into light. At present, with the rise of smart home, especially the camera field of view of devices such as smart cameras and smart doorbells is getting larger and larger. The structural diagram of ordinary LED lamp beads on the market is as Figure 1 shown. The lamp bead ball head 32 of the LED lamp bead is spherical. The θav (50%) light-emitting angle of this kind of LED lamp bead can only reach about 150 degrees, and this light-emitting angle can no longer fully meet the light supplement requirements of camera devices with a large field of view, resulting in a problem that there are dark areas at the four corners of the light supplement picture of such camera devices with a large field of view. In view of this problem, the inventor designed a novel large-angle LED lamp bead. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a novel large-angle LED lamp bead, which has a simple structure and reasonable design. Through optical design, a recessed part is arranged at the central vertex of the lamp bead ball head, so that the θav (50%) light-emitting angle of the LED lamp bead can reach more than 170 degrees. The larger light-emitting angle reduces the design limitations for devices that require large-angle light supplement of LED lamp beads, and solves the problem of dark corners in the light supplement picture of large-field-angle lenses.
[0004] To achieve the above purpose, the utility model provides the following technical solution: A novel large-angle LED lamp bead, including a base, an LED lamp bead body and a light-transmitting cover. A sunken groove is formed by sinking in the exact middle of the base, and a retaining wall is arranged at the opening of the sunken groove on the base. The retaining wall is distributed along the circumferential direction of the sunken groove. The LED lamp bead body is installed in the sunken groove. The light-transmitting cover is covered on the base and is hermetically connected to the base. The light-transmitting cover includes a light-transmitting seat and a lamp bead ball head integrally formed on the light-transmitting seat. One end of the light-transmitting seat away from the lamp bead ball head protrudes downward to form a convex block, and an LED lamp bead position is opened on the convex block. When the light-transmitting cover is covered on the base, the LED lamp bead body is embedded in the LED lamp bead position, and the convex block completely fills the sunken groove. A recessed part is formed by the downward depression of the central vertex of the lamp bead ball head.
[0005] Preferably, a PCBA board for controlling the operation of the LED lamp bead body is arranged in the base, and the PCBA board is electrically connected to the LED lamp bead body.
[0006] Preferably, an angle is formed between the inner wall of the sinking groove and the horizontal plane, and the angle is between 100° and 150°.
[0007] Preferably, a groove adapted to the retaining wall is provided on the light-transmitting seat in the circumferential direction of the convex block.
[0008] Preferably, the lamp bead ball head is a curved surface structure, and the material of the lamp bead ball head is epoxy resin.
[0009] Preferably, the depth value of the recessed part is between 0.5 mm and 10 mm.
[0010] Preferably, a gap is formed between the LED lamp bead position and the LED lamp bead body, and the gap value of the gap is between 0.1 mm and 5 mm.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. The present utility model provides a novel large-angle LED lamp bead, which includes a base, an LED lamp bead body and a light-transmitting cover. The overall structure is simple and reasonable in design. A sinking groove is formed by sinking in the exact middle of the base, and a retaining wall is provided at the opening of the sinking groove on the base. The retaining wall is distributed along the circumferential direction of the sinking groove. When the light-transmitting cover is covered on the base, the retaining wall and the groove cooperate to effectively prevent the light emitted by the LED lamp bead body from leaking out from the connection between the base and the light-transmitting cover, and it has strong practicability.
[0013] 2. The light-transmitting cover in the present utility model includes a light-transmitting seat and a lamp bead ball head integrally formed on the light-transmitting seat. One end of the light-transmitting seat away from the lamp bead ball head protrudes downward to form a convex block, and an LED lamp bead position is provided on the convex block. When the light-transmitting cover is covered on the base, the LED lamp bead body is embedded in the LED lamp bead position, and at the same time, the convex block completely fills the sinking groove. Such a design makes the light-transmitting property of the LED lamp bead body better. By designing the central vertex of the lamp bead ball head to be concave and forming a recessed part at the central vertex, the depth value of the recessed part is between 0.5 mm and 10 mm. Such a design enables the θav(50%) light-emitting angle of the LED lamp bead to reach more than 170 degrees. A larger light-emitting angle reduces the design limitations for equipment that requires large-angle light filling of LED lamp beads, and solves the problem of dark corners in the light-filling picture of a large field-of-view angle lens. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a structural diagram of the LED lamp bead in the prior art of the present utility model;
[0015] Figure 2 is a structural diagram of the LED lamp bead of the present utility model;
[0016] Figure 3 Schematic diagram of the structure of the LED lamp bead body of the present utility model installed on the base;
[0017] Figure 4 One of the structure diagrams of the light-transmitting cover of the present utility model;
[0018] Figure 5 Another structure diagram of the light-transmitting cover of the present utility model;
[0019] Figure 6 Schematic diagram of the light radiation intensity distribution of the LED lamp bead of the present utility model.
[0020] The reference numerals and names in the figure are as follows:
[0021] 1. Base; 11. Sinking groove; 12. Baffle wall; 2. LED lamp bead body; 3. Light-transmitting cover; 31. Light-transmitting seat; 32. Lamp bead ball head; 33. Depressed part; 34. Convex block; 35. LED lamp bead position; 36. Groove; 4. PCBA board. Specific embodiments
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, "a plurality" means two or more unless otherwise specifically defined.
[0024] In the embodiments of the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0025] Please refer to Figures 2 to 5 , an embodiment provided by the present utility model: a new type of large-angle LED lamp bead. The LED lamp bead includes a base 1, an LED lamp bead body 2, and a light-transmitting cover 3. A sinking groove 11 is formed by sinking in the exact middle of the base 1, and a retaining wall 12 is provided at the opening of the sinking groove 11 on the base 1. The retaining wall 12 is distributed along the circumferential direction of the sinking groove 11. The LED lamp bead body 2 is installed in the sinking groove 11. A PCBA board 4 for controlling the operation of the LED lamp bead body 2 is provided in the base 1. The PCBA board 4 is electrically connected to the LED lamp bead body 2. More specifically, at least a control circuit for controlling the operation of the LED lamp bead body 2 is provided on the PCBA board 4. The control circuit includes a power supply circuit and a brightness control circuit for the LED lamp bead body. It should be noted that both the power supply circuit and the brightness control circuit for the LED lamp bead body are prior arts and will not be elaborated here.
[0026] The light-transmitting cover 3 is covered on the base 1 and is hermetically connected to the base 1. The light-transmitting cover 3 includes a light-transmitting base 31 and a lamp bead ball head 32 integrally formed on the light-transmitting base 31. One end of the light-transmitting base 31 away from the lamp bead ball head 32 protrudes downward to form a convex block 34. An LED lamp bead position 35 is provided on the convex block 34. When the light-transmitting cover 3 is covered on the base 1, the LED lamp bead body 2 is embedded in the LED lamp bead position 35, and the convex block 34 completely fills the sinking groove 11. The lamp bead ball head 32 is a curved surface structure, and the material of the lamp bead ball head 32 is epoxy resin. A concave portion 33 is formed by concave downward at the central vertex of the lamp bead ball head 32. The depth value of the concave portion 33 is between 0.5 mm and 10 mm. Such a design enables the θav(50%) light-emitting angle of the LED lamp bead to reach more than 170 degrees. With a larger light-emitting angle, the design limitations for equipment that requires large-angle supplementary lighting of LED lamp beads are reduced, and the problem of dark corners in the supplementary lighting picture of a large field-of-view angle lens is solved.
[0027] Specifically, a groove 36 adapted to the retaining wall 12 is provided on the light-transmitting base 31 in the circumferential direction of the bump 34. When the light-transmitting cover 3 is covered on the base 1, the retaining wall 12 is completely inserted into the groove 36, which can prevent the light emitted by the LED lamp bead body 2 from emitting from the connection between the light-transmitting cover 3 and the base 1, and has strong practicability.
[0028] Specifically, an angle is formed between the inner wall of the sinking groove 11 and the horizontal plane, and the angle of this angle is between 100° and 150°.
[0029] Specifically, a gap is formed between the LED lamp bead position 35 and the LED lamp bead body 2, and the gap value of this gap is between 0.1 mm and 5 mm. The purpose of setting the gap is to facilitate the refraction of the light of the LED lamp bead body 2 to emit.
[0030] Please refer to Figure 6 , Figure 6 which is a schematic diagram of the light radiation intensity distribution of the LED lamp bead of the present invention. During the test, the working current of the LED lamp bead body 2 is 800 mA, the working voltage is: 1.84 V, and the electric power is: 1472.11 mW. It can be seen from the figure that: the average radiation intensity diffusion angle of the LED lamp bead: θ(25%): 180.0°, θ(50%): 180.0°, θ(75%): 177.2°, θ(50%): 180.0°, the maximum radiation intensity Imax = 92.46 mW / sr (C = 0.0°, G = -17.0°); in the C0-180 plane, Imax = 92.46 mW / sr (G = -17.0°), Io = 85.90 mW / sr. It can be seen from this that the LED lamp bead in the present invention has a larger light-emitting angle, which reduces the design limitations for equipment that requires large-angle supplementary lighting of LED lamp beads, solves the problem of vignetting in the supplementary lighting picture of a large field-of-view angle lens, and is worthy of popularization and application.
[0031] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. A new type of large-angle LED lamp bead, characterized by: The invention comprises a base (1), an LED lamp bead body (2) and a light-transmitting cover (3); the center of the base (1) is sunken to form a sinking groove (11); a retaining wall (12) is arranged on the base (1) at the opening of the sinking groove (11); the retaining wall (12) is distributed along the circumferential direction of the sinking groove (11); the LED lamp bead body (2) is installed in the sinking groove (11); the light-transmitting cover (3) is covered on the base (1) and is sealed with the base (1); and the light-transmitting cover (3) comprises a light-transmitting seat (31 ) and a lamp bead ball head (32) integrally formed on a light-transmitting seat (31); one end surface of the light-transmitting seat (31) away from the lamp bead ball head (32) protrudes downward to form a convex block (34); an LED lamp bead position (35) is provided on the convex block (34); when the light-transmitting cover (3) is covered on the base (1), the LED lamp bead body (2) is embedded in the LED lamp bead position (35), the convex block (34) completely fills the sinking groove (11), and the central vertex of the lamp bead ball head (32) is concave to form a recessed portion (33).
2. According to claim 1, the new large-angle LED lamp bead is characterized in that: A PCBA board (4) for controlling the operation of the LED lamp bead body (2) is arranged in the base (1); the PCBA board (4) is electrically connected to the LED lamp bead body (2).
3. According to claim 1, the new large-angle LED lamp bead is characterized in that: An angle is formed between the inner wall of the sinking trough (11) and the horizontal plane, and the angle of the angle is between 100° and 150°.
4. The novel large-angle LED lamp bead according to claim 1 is characterized in that: A groove (36) matching the blocking wall (12) is provided on the light-transmitting seat (31) in the circumferential direction of the protrusion (34).
5. The novel large-angle LED lamp bead according to claim 1 is characterized in that: The lamp bead ball head (32) is a curved surface structure, and the material of the lamp bead ball head (32) is epoxy resin.
6. The novel large-angle LED lamp bead according to claim 1 is characterized in that: The depth of the recessed portion (33) is between 0.5 mm and 10 mm.
7. The novel large-angle LED lamp bead according to claim 1 is characterized in that: A gap is formed between the LED lamp bead position (35) and the LED lamp bead body (2), and the gap value of the gap is between 0.1 mm and 5 mm.