A collimating array lens and optical path system for LED module light source

Abstract

The utility model discloses a collimating array lens and optical path system for an LED module light source, including an aspheric array lens, a light source, a compound eye light homogenizing component, a condenser and a GOBO, wherein the light source, the array lens, the compound eye light homogenizing component, the condenser and the GOBO are arranged in sequence according to the optical path. The collimating array lens and optical path system for an LED module light source of the utility model achieves higher light efficiency and cost advantages by adopting a biconvex aspheric lens to replace the traditional two-lens combination. The system not only simplifies the structural design and reduces the production cost, but also maintains efficient light source output and excellent light quality, improves the stage lighting effect, and has a wide range of application prospects.

Description

Technical Field

[0001] The utility model relates to the field of LED lighting and stage lighting, and in particular to a collimating array lens and an optical path system for an LED module light source. Background Art

[0002] LED lighting technology has been widely used in various fields in recent years, especially in the field of stage lighting. LED integrated module light sources have gradually replaced traditional light sources and become the mainstream due to their advantages such as high efficiency, energy saving and rich colors. However, with the continuous increase in demand for stage lighting, the performance and cost control of LED light source modules are also facing higher requirements. Specifically, different types of stage lighting not only require LED modules to have higher light efficiency, but also need to ensure the quality and stability of the light source under the premise of controlling costs.

[0003] like Figure 1 As shown, currently, common LED light source modules mainly use two lenses to collimate a single LED lamp bead, and then combine multiple collimating lenses into an array lens to form an array collimating optical path system. Although this method can achieve a certain collimation effect, it has the following disadvantages:

[0004] In the common two-lens combination, one is a plano-convex spherical lens 9, and the other is a plano-convex aspheric lens 10. The two lenses are arranged to form an array lens assembly, and then the light is converged into the GOBO through the compound eye homogenization assembly and the condenser. This design requires two layers of collimating array lenses, which increases the complexity and volume of the system.

[0005] Since two lenses are needed and each lens has a high precision requirement, the overall cost is high, which is a considerable burden for stage lighting that requires a large number of LED light source modules.

[0006] The combination of multiple layers of lenses will cause light efficiency loss to a certain extent, reducing the overall efficiency of the LED light source module. Utility Model Content

[0007] In order to solve the above problems, the utility model provides a collimating array lens and an optical path system for an LED module light source, which adopts a double convex aspheric lens to realize the collimation of a single LED lamp bead. The light entrance surface and the light exit surface of the collimating lens are both smooth aspheric surfaces. The aspheric lenses are arranged to form an array lens, and then combined into a collimating array lens assembly, thereby realizing the collimated output of multiple semiconductor light sources. Compared with the traditional two-lens combination method, it not only simplifies the structure and reduces the cost, but also maintains the high efficiency of the LED module light source.

[0008] The utility model is realized by the following technical scheme: a collimating array lens for an LED module light source, comprising more than one collimating lens, and the more than one collimating lens are all double convex aspheric lenses;

[0009] An aspheric array lens is composed of one or more collimating lenses arranged in an arbitrary shape.

[0010] As a preferred technical solution, the light incident surface of each biconvex aspheric lens is a smooth aspheric surface.

[0011] As a preferred technical solution, the light-emitting surface of each biconvex aspheric lens is a smooth aspheric surface.

[0012] The utility model discloses an optical path system, comprising an aspherical array lens, a light source, a compound eye light homogenizing component, a condenser and a GOBO, wherein the light source, the array lens, the compound eye light homogenizing component, the condenser and the GOBO are arranged in sequence according to the optical path.

[0013] As a preferred technical solution, the light source adopts an LED substrate and a semiconductor light source mounted on the LED substrate.

[0014] As a preferred technical solution, the compound eye light homogenization components are arranged as one or more groups.

[0015] The beneficial effect of the utility model is that the utility model uses a collimating array lens and an optical path system, the light of the LED light source module is collimated by the array lens, and then the light is converged into the GOBO through the compound eye uniform light component and the condenser. The collimated optical path in this combination has lower cost than the commonly used plano-convex spherical lens plus plano-convex aspherical lens combination, and can also maintain the efficiency of the LED module light source.

[0016] The collimating array lens provided by the utility model has high efficiency and low cost. The optical path system using the collimating array lens can not only maintain the efficiency of the entire module light source, but also reduce the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a collimating lens of a prior art solution;

[0019] Figure 2 It is a schematic structural diagram of a single biconvex aspheric lens of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a biconvex aspheric lens array of the utility model;

[0021] Figure 4 This is the optical path diagram of the utility model;

[0022] Description of reference numerals:

[0023] 1. Biconvex aspheric lens; 2. LED substrate; 3. Semiconductor light source; 4. Aspheric array lens; 5. Compound eye homogenization component; 6. Condenser; 7. GOBO. DETAILED DESCRIPTION

[0024] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0025] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0026] like Figure 2 As shown, the utility model is a collimating array lens for an LED module light source, including more than one collimating lens, and the more than one collimating lens adopts a double convex aspheric lens 1; the more than one collimating lens is arranged in an arbitrary shape to form an aspheric array lens 4, the light incident surface of each double convex aspheric lens 1 is a smooth aspheric surface, and the light emitting surface of each double convex aspheric lens 1 is a smooth aspheric surface.

[0027] like Figure 4 As shown, an optical path system of the utility model includes an aspheric array lens 4, a light source, a compound eye light homogenizing component 5, a condenser 6 and a GOBO 7. The light source, the array lens, the compound eye light homogenizing component 5, the condenser 6 and the GOBO 7 are arranged in sequence according to the optical path. The collimated optical path in this combination form has a lower cost than the commonly used plano-convex spherical lens plus a plano-convex aspheric lens combination, and can also maintain the efficiency of the LED module light source.

[0028] The light source is an LED substrate 2 and a semiconductor light source 3 mounted on the LED substrate 2, and the compound eye homogenizing component 5 is arranged as one or more groups.

[0029] The collimating array lens provided by the utility model has high efficiency and low cost. The optical path system using the collimating array lens can not only maintain the efficiency of the light source of the entire module, but also reduce the cost.

[0030] In this embodiment, if Figure 3 As shown, the collimating optical path arranges the single collimating lenses in a hexagonal shape to form an array lens, thereby achieving collimated output of multiple semiconductor light sources 3 at the same time.

[0031] There are many ways to arrange the array lens structure: in addition to the hexagonal arrangement used in the utility model, there are also square arrangement, radial arrangement, polynomial arrangement, Bezier curve arrangement, random arrangement, etc.

[0032] The individual element shapes of the array lens are of various types: in addition to the aspheric surface used in the present invention, there are also quadratic surfaces, deformed polynomial aspheric surfaces, free-form surfaces, etc.;

[0033] Using the LED module light source of the collimated light path, the light is collimated by the array lens and then converged into the GOBO 7 by the compound eye homogenizing component 5 and the condenser 6 .

[0034] The beneficial effect of the utility model is that the utility model uses a collimating array lens and an optical path system, and the light of the LED light source module is collimated by the array lens, and then the light is converged into the GOBO 7 by the compound eye homogenizing component 5 and the condenser 6. The collimated optical path in this combination has a lower cost than the commonly used plano-convex spherical lens plus a plano-convex aspherical lens combination, and can also maintain the efficiency of the LED module light source.

[0035] The collimating array lens provided by the utility model has high efficiency and low cost. The optical path system using the collimating array lens can not only maintain the efficiency of the entire module light source, but also reduce the cost.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A collimating array lens for an LED module light source, characterized in that: include: One or more collimating lenses, wherein the one or more collimating lenses are biconvex aspheric lenses (1); An aspherical array lens (4) is formed by arranging more than one collimating lens in an arbitrary shape.

2. The collimating array lens for LED module light source according to claim 1, characterized in that: The light incident surface of each biconvex aspheric lens (1) is a smooth aspheric surface.

3. The collimating array lens for LED module light source according to claim 1, characterized in that: The light-emitting surface of each biconvex aspheric lens (1) is a smooth aspheric surface.

4. An optical path system, characterized in that: The aspheric array lens (4) comprises the aspheric array lens (4) as claimed in any one of claims 1 to 3, and further comprises a light source, a compound eye light homogenizing component (5), a condenser (6) and a GOBO (7), wherein the light source, the array lens, the compound eye light homogenizing component (5), the condenser (6) and the GOBO (7) are arranged in sequence according to the optical path.

5. The optical path system according to claim 4, characterized in that: The light source adopts an LED substrate (2) and a semiconductor light source (3) mounted on the LED substrate (2).

6. The optical path system according to claim 4, characterized in that: The compound eye light homogenizing components (5) are arranged as one group or multiple groups.

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