LED light source module

Abstract

The utility model discloses a light-emitting diode (LED) light source module, which comprises a mounting substrate and an LED light source arranged on the mounting substrate, and further comprises a reflection cup which is arranged on the mounting substrate, corresponds to the LED light source and is provided with a light outlet, and a lens group corresponding to the light outlet, the LED light source corresponds to the sphere center of the spherical reflecting surface; and the lens group comprises two plano-convex lenses of which the convex surfaces are oppositely arranged. Light rays emitted by the LED light source are effectively collected through the reflection cup, the brightness of the LED light source is improved, in this way, ideal convergence of light beams emitted by the LED light source can be achieved only through the two plano-convex lenses with the convex faces arranged oppositely, the collection efficiency is high, an optical system is simplified, the size is small, assembly and production are convenient, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor lighting, in particular to an LED light source module. Background Art

[0002] With the development of semiconductor technology, LED (Light Emitting Diode) light sources are gradually replacing traditional incandescent lamps and energy-saving lamps and becoming a universal lighting source due to their many advantages such as high luminous flux, long life, small structure, safety, high efficiency, and energy saving.

[0003] Because monochromatic LEDs offer high color saturation, their use in stage lighting offers a high degree of freedom in color expression. However, the light emitted by LEDs covers a 180-degree hemispherical angle, necessitating the convergence of three lenses. Due to the high power of stage lights, these three lenses are typically constructed of heat-resistant glass, resulting in high costs. Furthermore, the three-lens combination requires high assembly precision and a relatively complex structure.

[0004] In addition, illumination is the most core technical indicator of stage lighting, which depends on the brightness of the LED light source. However, the brightness of the current LED light source is limited and fails to meet the needs of users. Therefore, how to improve the brightness of the LED light source has become a difficult problem that needs to be solved urgently. Utility Model Content

[0005] The utility model aims to solve the technical problems existing in the prior art and provides an LED light source module with high brightness, small size and high light collection efficiency.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: an LED light source module, including a mounting substrate, an LED light source arranged on the mounting substrate, characterized in that it also includes a reflective cup with a light outlet arranged on the mounting substrate and corresponding to the LED light source, and a lens group corresponding to the light outlet, the inner surface of the reflective cup is a spherical reflective surface, the LED light source corresponds to the center of the spherical reflective surface, and the lens group includes two plano-convex lenses with convex surfaces arranged opposite to each other.

[0007] Furthermore, the light outlet is located in the middle of the top of the reflective cup.

[0008] Furthermore, the divergence angle of the light beam emitted from the light outlet is 70°-100°.

[0009] Furthermore, the two plano-convex lenses are made of glass material.

[0010] Furthermore, the convex surface of at least one of the two plano-convex lenses is aspherical.

[0011] Furthermore, the mounting substrate is a copper substrate, and the reflective cup is bonded to the copper substrate.

[0012] Furthermore, it also includes a lens mounting bracket arranged on the periphery of the lens group.

[0013] Furthermore, the lens mounting bracket includes a mounting plate with a hollow portion and a fixing ring sleeved on the periphery of the lens group, the hollow portion of the mounting plate corresponds to the reflective cup, and a mounting platform adapted to the plano-convex lens is provided in the fixing ring.

[0014] The LED light source module provided by the utility model includes a mounting substrate, an LED light source mounted on the mounting substrate, a reflective cup having a light outlet mounted on the mounting substrate and corresponding to the LED light source, and a lens assembly corresponding to the light outlet. The inner surface of the reflective cup is a spherical reflective surface, the LED light source corresponds to the center of the spherical reflective surface, and the lens assembly includes two plano-convex lenses with convex surfaces arranged opposite each other. The reflective cup effectively collects light emitted by the LED light source, thereby improving the brightness of the LED light source. Thus, ideal convergence of the light beam emitted by the LED light source can be achieved simply by using the two plano-convex lenses with convex surfaces arranged opposite each other. This not only improves collection efficiency but also simplifies the optical system, resulting in a compact design, convenient assembly and production, and cost savings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a specific embodiment of the LED light source module of the present utility model;

[0016] Figure 2 This is a structural explosion diagram of a specific embodiment of the LED light source module of the present utility model;

[0017] As shown in the figure: 10, mounting substrate; 20, LED light source; 30, reflector cup; 310, light outlet; 40, lens group; 410, plano-convex lens; 50, mounting bracket; 510, mounting plate; 520, fixing ring. DETAILED DESCRIPTION

[0018] The utility model is described in detail below with reference to the accompanying drawings:

[0019] like Figure 1As shown, the utility model provides an LED light source module, including a mounting substrate 10, an LED light source 20 arranged on the mounting substrate 10, and also including a reflective cup 30 with a light outlet 310 arranged on the mounting substrate 10 and corresponding to the LED light source 20, the inner surface of the reflective cup 30 is a spherical reflective surface, the LED light source 20 corresponds to the center of the spherical reflective surface, and also includes a lens group 40 corresponding to the light outlet 310, the lens group 40 includes two plano-convex lenses 410 with convex surfaces arranged opposite to each other. The reflective cup 30 effectively collects the light emitted by the LED light source 20, thereby improving the brightness of the LED light source 20 and replacing the function of an optical lens. Thus, ideal convergence of the light beam emitted by the LED light source 20 can be achieved simply by using two plano-convex lenses 410 with convex surfaces arranged opposite each other. In this embodiment, the two plano-convex lenses 410 are closely arranged along the optical path, with the two convex surfaces adjacent to each other. This design ensures that all light emitted by the LED light source 20 can be effectively collected and utilized, not only achieving high collection efficiency but also greatly enhancing the brightness of the LED light source 20. Converging the light beam emitted by the LED light source 20 using two plano-convex lenses 410 simplifies the optical system, is compact, facilitates assembly and production, and saves costs.

[0020] Preferably, the mounting substrate 10 is a copper substrate, and the reflective cup 30 is bonded to the copper substrate 10. Specifically, the lower bottom surface of the reflective cup 30 is flat and is bonded to the mounting substrate 10 by glue. This is the simplest structure and the lowest cost. The adhesive can be a silicone adhesive that is resistant to high temperatures and has good reliability.

[0021] Preferably, the light outlet 310 in this embodiment is located in the middle of the top of the reflective cup 30. Of course, the light outlet can also be set at other positions according to actual needs. In this embodiment, the divergence angle of the light beam emitted by the light outlet 310 is 70°-100°. Specifically, the inner surface of the reflective cup 30 is a spherical reflective surface, which can reflect the large-angle light beam emitted by the LED light source 20 back to the surface of the LED light source 20, allowing only light in a small angle range to be emitted from the light outlet 310, and the large-angle light beam is re-excited by the phosphor sheet on the surface of the LED light source 20 and then emitted. In this embodiment, the small angle range can be 0-45°, and the central angle corresponding to the light outlet 310 of the reflective cup 30 is 0-90°. This part of the light in the small angle range is focused after passing through two plano-convex lenses 410. In order to achieve this effect, the divergence angle of the light beam emitted from the light outlet 310 cannot be too large. The divergence angle of this part of the light beam is best controlled at 70-100 degrees. If the divergence angle is too large, the two plano-convex lenses 410 at the rear cannot focus. If it is too small, the light collection efficiency of the entire system will be reduced.

[0022] Preferably, the two plano-convex lenses 410 are made of glass, and the convex surface of at least one of the plano-convex lenses 410 is aspherical. The sizes of the two plano-convex lenses 410 can be different or the same. In this embodiment, the plano-convex lens 410 closer to the LED light source 20 is larger than the plano-convex lens 410 farther away from the LED light source 20. The plane of the plano-convex lens 410 closer to the LED light source 20 faces the LED light source 20, while the plane of the plano-convex lens 410 farther away from the LED light source 20 faces the focal point of the lens assembly 40. Plano-convex lenses 410 are used because of their low processing cost, and the use of at least one aspherical surface can reduce spherical aberration and achieve ideal focusing.

[0023] Preferably, the LED light source module further includes a lens mounting bracket 50 disposed on the periphery of the lens assembly 40. The lens mounting bracket 50 includes a mounting plate 510 having a hollow portion and a fixing collar 520 that is sleeved around the periphery of the lens assembly 40. The hollow portion of the mounting plate 510 corresponds to the reflector cup 30. Specifically, the mounting plate 510 is fixed to the mounting base plate 10. The hollow portion in the middle of the mounting plate 510 corresponds to the reflector cup 30. The fixing collar 520 is fixed to the mounting plate 510. The fixing collar 520 has mounting platforms disposed within the fixing collar 520 corresponding to the two plano-convex lenses 410. The two plano-convex lenses 410 are confined within the fixing collar 520.

[0024] Although the embodiments of the present invention are described in the specification, these embodiments are only for reference and should not limit the scope of protection of the present invention. Various omissions, substitutions and changes within the scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. An LED light source module, comprising a mounting substrate and an LED light source arranged on the mounting substrate, characterized in that: It also includes a reflective cup with a light outlet, which is arranged on the mounting substrate and corresponds to the LED light source, and a lens group corresponding to the light outlet. The inner surface of the reflective cup is a spherical reflective surface, the LED light source corresponds to the center of the spherical reflective surface, and the lens group includes two plano-convex lenses with convex surfaces arranged opposite to each other.

2. The LED light source module according to claim 1, characterized in that: The light outlet is located in the middle of the top of the reflective cup.

3. The LED light source module according to claim 2, characterized in that: The divergence angle of the light beam emitted from the light outlet is 70°-100°.

4. The LED light source module according to claim 1, characterized in that: The two plano-convex lenses are made of glass material.

5. The LED light source module according to claim 1, characterized in that: The convex surface of at least one of the two plano-convex lenses is aspherical.

6. The LED light source module according to claim 1, characterized in that: The mounting substrate is a copper substrate, and the reflective cup is bonded to the copper substrate.

7. The LED light source module according to claim 1, characterized in that: It also includes a lens mounting bracket arranged on the periphery of the lens group.

8. The LED light source module according to claim 7, characterized in that: The lens mounting bracket includes a mounting plate with a hollow portion and a fixing ring sleeved on the periphery of the lens group. The hollow portion of the mounting plate corresponds to the reflective cup. A mounting platform adapted to the plano-convex lens is provided in the fixing ring.

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