LED lamp test light receiver

Abstract

The utility model provides an LED lamp test light receiver which comprises a light receiver body, a light mixing cavity is arranged in the light receiver body, the light mixing cavity is a through cavity, one end of the light mixing cavity is a light source input end used for covering an external LED lamp, and the other end of the light mixing cavity is a mixed light output end used for being connected with an input end of an external optical sensor. A light scattering device is embedded in the inner wall of the light mixing cavity, and the light mixing cavity partially or completely adopts a Lambert cavity. According to the scheme, the light mixing cavity internally provided with the light scattering device is adopted, the situation that collection is unstable due to the fact that light of the light source directly irradiates the optical fiber is avoided, the effect of improving the collection stability of the LED lamp light source can be achieved, the light mixing cavity adopts the Lambert cavity, light mixing can be uniform, the light mixing uniformity can be improved, and therefore accurate measurement of LED lamp parameters is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED lamp testing, in particular to an LED lamp testing light receiver. Background Art

[0002] With technological advancements, LEDs (light-emitting diodes) have gained widespread adoption in the lighting industry due to their significant advantages, including high efficiency, energy saving, and environmental friendliness. Therefore, ensuring the quality and performance of LED lamps is crucial, requiring the use of specialized testing equipment for precise measurement and evaluation. Testing LED lamps differs from traditional light sources due to their unique lighting principles and structural characteristics, making the testing process more complex. For example, key parameters such as LED light intensity distribution, color temperature, and color rendering index require precise measurement using specialized testing equipment. Furthermore, with the continuous advancement of LED technology, the performance of new LED lamps is constantly improving, placing increasing demands on testing equipment. To meet these demands, LED lamp test receivers have emerged, providing strong support for LED lamp production and quality control.

[0003] However, the LED lamp test light receiver in the current existing technology usually adopts a cylindrical through cavity as a mixing cavity, one end of the mixing cavity as a light source input end, and the other end as a mixed light output end. In the working state, the three-color forward light emitted by the external LED lamp bead is input into the mixing cavity through the light source input end, and is refracted by the inner wall surface of the mixing cavity to form mixed light. The mixed light is output to the external optical sensor through the mixed light output end. Since the mixing cavity is a cylindrical through cavity, the three-color forward light emitted by the LED lamp and parallel to the center line of the cylindrical through cavity will not be refracted to form mixed light, but will directly illuminate the optical fiber connected to the external optical sensor, that is, the direct light of the LED lamp will directly illuminate the optical fiber, resulting in unstable collection. Utility Model Content

[0004] In response to the defects in the existing technology, the purpose of the present invention is to provide an LED lamp test light receiver, which adopts a mixing cavity with a scattered light device to prevent the direct light from the light source from directly irradiating the optical fiber and causing unstable collection. The mixing cavity adopts a Lambertian cavity, which can evenly mix the light.

[0005] In order to solve the above technical problems, the present invention provides an LED lamp test light receiver, including a light receiver body, a mixing cavity is opened in the light receiver body, and the mixing cavity is a through cavity. One end of the mixing cavity is the light source input end, which is used to cover the external LED lamp, and the other end is the mixing light output end, which is used to be connected to the input end of the external optical sensor. The inner wall of the mixing cavity is embedded with a scattering device, and the mixing cavity partially or completely adopts a Lambertian cavity.

[0006] Furthermore, the light mixing cavity includes a light receiving part and a light mixing part that are connected to each other, and the light diffusing device is embedded in the junction of the light receiving part and the light mixing part, and separates the light receiving part and the light mixing part into two relatively independent spaces.

[0007] Furthermore, in the case where the light mixing cavity part adopts a Lambertian cavity, only the light mixing part adopts the Lambertian cavity.

[0008] Furthermore, the optical receiver body includes a first optical receiver split body and a second optical receiver split body, and the first optical receiver split body and the second optical receiver split body are detachably connected;

[0009] The first light receiver body is provided with a first light receiving sub-cavity and a first light mixing sub-cavity, and the second light receiver body is provided with a second light receiving sub-cavity and a second light mixing sub-cavity. The first light receiving sub-cavity matches the second light receiving sub-cavity and together constitutes the light receiving part, and the first light mixing sub-cavity matches the second light mixing sub-cavity and together constitutes the light mixing part.

[0010] Furthermore, the cross-sectional area of ​​the junction between the light mixing portion and the light diffusing device is greater than or equal to the cross-sectional area of ​​the mixed light output end.

[0011] Furthermore, a center line of a cross section at a junction of the light mixing portion and the light diffusing device does not coincide with a center line of a cross section of the mixed light output end.

[0012] Furthermore, the cross-sectional area of ​​the junction between the light collecting portion and the light diffusing device is smaller than or equal to the cross-sectional area of ​​the input end of the light source.

[0013] Furthermore, a center line of a cross section at the junction of the light collecting portion and the light diffusing device does not coincide with a center line of a cross section of the light source input end.

[0014] Furthermore, the first light receiver split body and the second light receiver split body are detachably connected via a connecting piece which is sequentially embedded in the first light receiver split body and the second light receiver split body.

[0015] Furthermore, the mixed light output end is provided with an optical fiber interface, and the light receiver body is connected to the input end of the external optical sensor through the optical fiber interface.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) A mixed light cavity with a built-in light scattering device is used to prevent the direct light from the light source from directly irradiating the optical fiber, which causes unstable collection. This can improve the stability of LED light source collection, thereby improving the accuracy of LED light source collection.

[0018] (2) The light mixing cavity adopts a Lambertian cavity, which can mix light evenly and improve the uniformity of light mixing, thereby realizing accurate measurement of LED light parameters, ensuring that the optical parameters collected by the optical sensor are accurate, and solving the problem of inaccurate optical parameters collected by existing optical sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 A schematic diagram of the structure of an LED lamp test light receiver provided by an embodiment of the utility model;

[0021] Figure 2 A schematic side view of a light receiver for testing an LED lamp provided by an embodiment of the present invention;

[0022] Figure 3 This is a front view structural schematic diagram of an LED lamp test light receiver provided by an embodiment of the utility model.

[0023] In the picture:

[0024] 1. First light receiver split body; 101. First fixing hole; 102. First light receiving sub-cavity; 103. First light mixing sub-cavity;

[0025] 2. Second light receiver split body; 201. Second fixing hole; 202. Second light receiving sub-cavity; 203. Second light mixing sub-cavity;

[0026] 3. Fiber optic interface;

[0027] 4. Astigmatism device;

[0028] 5. Connectors. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art further understand the present invention, but are not intended to limit the present invention in any way. It should be noted that a person skilled in the art may make various variations and improvements without departing from the scope of the present invention. Such variations and improvements are all within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 3This embodiment provides an LED lamp test light receiver, including a light receiver body. A mixing cavity is defined in the light receiver body. The mixing cavity is a through cavity. One end of the mixing cavity is a light source input end, which is used to cover an external LED lamp. The other end is a mixed light output end, which is used to connect to the input end of an external optical sensor. A light scattering device 4 is embedded in the inner wall of the mixing cavity. The mixing cavity partially or entirely adopts a Lambertian cavity.

[0031] In a specific embodiment, the light mixing cavity includes a light receiving portion and a light mixing portion that are connected to each other, and the light diffusion device 4 is embedded in the junction of the light receiving portion and the light mixing portion, and separates the light receiving portion and the light mixing portion into two relatively independent spaces; wherein the light diffusion device 4 can be a light diffusion plate;

[0032] The optical receiver body includes a first optical receiver split body 1 and a second optical receiver split body 2, and the first optical receiver split body 1 and the second optical receiver split body 2 are detachably connected; wherein, the first optical receiver split body 1 and the second optical receiver split body 2 are detachably connected by a connector 5 that is sequentially embedded in the first optical receiver split body 1 and the second optical receiver split body 2; optionally, the first optical receiver split body 1 and the second optical receiver split body 2 are connected by two connectors 5, and the two connectors 5 are respectively located on the front and rear sides of the light mixing cavity, and the connector 5 passes through the first optical receiver split body 1 and passes through or is partially embedded in the second optical receiver split body 2, and the connector 5 can be a screw; the detachable connection between the first optical receiver split body 1 and the second optical receiver split body 2 facilitates the maintenance and replacement of the heat dissipation device 4;

[0033] The first light receiver body 1 is provided with a first light receiving sub-cavity 102 and a first light mixing sub-cavity 202, and the second light receiver body 2 is provided with a second light receiving sub-cavity 103 and a second light mixing sub-cavity 203. The first light receiving sub-cavity 102 matches the second light receiving sub-cavity 202 and together constitutes a light receiving part, and the first light mixing sub-cavity 103 matches the second light mixing sub-cavity 203 and together constitutes a light mixing part;

[0034] The cross-sectional area of ​​the junction between the light mixing part and the light diffusing device 4 is greater than or equal to the cross-sectional area of ​​the mixed light output end;

[0035] The cross-sectional area of ​​the junction between the light collecting portion and the light diffusing device 4 is less than or equal to the cross-sectional area of ​​the light source input end;

[0036] An optical fiber interface 3 is provided at the output end of the mixed light, and the optical receiver body is connected to the input end of the external optical sensor through the optical fiber interface 3; optionally, fixing holes are respectively provided on the left and right sides of the optical fiber interface 3 for installing the optical fiber connected to the input end of the external optical sensor, wherein a first fixing hole 101 is provided on the first optical receiver split 1, and a second fixing hole 201 is provided on the second optical receiver split 2.

[0037] In an optional embodiment, the light mixing cavity part adopts a Lambertian cavity, that is, only the light mixing part adopts a Lambertian cavity. At this time, the light source emitted by the external LED lamp undergoes a homogenization process, and the cross-sectional center line of the junction of the light mixing part and the light scattering device 4 does not coincide with the cross-sectional center line of the mixed light output end. The cross-sectional center line of the junction of the light collecting part and the light scattering device 4 may coincide with the cross-sectional center line of the light source input end, or may not coincide.

[0038] In another optional embodiment, the entire light mixing cavity adopts a Lambertian cavity. At this time, the light source emitted by the external LED lamp undergoes a secondary homogenization process, and the cross-sectional center line of the junction of the light mixing part and the light scattering device 4 does not coincide with the cross-sectional center line of the mixed light output end, and the cross-sectional center line of the junction of the light collecting part and the light scattering device 4 does not coincide with the cross-sectional center line of the light source input end.

[0039] In a preferred embodiment, the light receiver body and the light mixing cavity are both as Figure 1-Figure 3 As shown, the vertical cross section is a transversely arranged Z-shaped structure, the horizontal cross section is a rectangular structure, and the cross-sectional area from the light source input end to the mixed light output end is gradually reduced.

[0040] In this embodiment, the tester can choose to perform a single homogenization process or a secondary homogenization process on the light source emitted by the external LED lamp according to the needs. When in use, the RGB three-color forward light emitted by the external LED lamp passes through the scattering device 4 from the light source input end and is input into the light mixing part, and is refracted by the inner wall surface of the light mixing part to form mixed light. The formed mixed light is output from the mixed light output end to the external optical sensor, which can ensure that the optical parameters collected by the optical sensor are accurate, and solves the problem of inaccurate optical parameters collected by existing optical sensors.

[0041] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. An LED lamp test light receiver, characterized in that: The invention comprises a light receiver body, wherein a light mixing cavity is provided in the light receiver body, wherein the light mixing cavity is a through cavity, wherein one end of the light mixing cavity is a light source input end, which is used to cover an external LED lamp, and the other end is a mixed light output end, which is used to be connected to the input end of an external optical sensor, wherein a light scattering device (4) is embedded in the inner wall of the light mixing cavity, and the light mixing cavity partially or entirely adopts a Lambertian cavity.

2. The LED lamp test light receiver according to claim 1, characterized in that: The light mixing cavity comprises a light receiving part and a light mixing part which are connected to each other, and the light scattering device (4) is embedded in the junction of the light receiving part and the light mixing part, and separates the light receiving part and the light mixing part into two relatively independent spaces.

3. The LED lamp test light receiver according to claim 2, characterized in that: In the case where the light mixing cavity part adopts a Lambertian cavity, only the light mixing part adopts a Lambertian cavity.

4. The LED lamp test light receiver according to claim 3, characterized in that: The light receiver body comprises a first light receiver split body (1) and a second light receiver split body (2), wherein the first light receiver split body (1) and the second light receiver split body (2) are detachably connected; The first light receiving sub-cavity (102) and the first light mixing sub-cavity (202) are provided on the first light receiving sub-cavity (102), and the second light receiving sub-cavity (103) and the second light mixing sub-cavity (203) are provided on the second light receiving sub-cavity (2). The first light receiving sub-cavity (102) matches the second light receiving sub-cavity (103) and together constitute the light receiving part, and the first light mixing sub-cavity (202) matches the second light mixing sub-cavity (203) and together constitute the light mixing part.

5. The LED lamp test light receiver according to claim 4, characterized in that: The cross-sectional area of ​​the junction between the light mixing portion and the light scattering device (4) is greater than or equal to the cross-sectional area of ​​the mixed light output end.

6. The LED lamp test light receiver according to claim 5, characterized in that: The center line of the cross section where the light mixing portion and the light scattering device (4) meet does not coincide with the center line of the cross section of the mixed light output end.

7. The LED lamp test light receiver according to claim 4, characterized in that: The cross-sectional area of ​​the junction between the light collecting portion and the light diffusing device (4) is less than or equal to the cross-sectional area of ​​the light source input end.

8. The LED lamp test light receiver according to claim 7, characterized in that: The center line of the cross section at the junction of the light collecting portion and the light diffusing device (4) does not coincide with the center line of the cross section of the light source input end.

9. The LED lamp test light receiver according to claim 4, characterized in that: The first light receiver split body (1) and the second light receiver split body (2) are detachably connected via a connecting piece (5) which is sequentially embedded in the first light receiver split body (1) and the second light receiver split body (2).

10. The LED lamp test light receiver according to any one of claims 1 to 9, characterized in that: The mixed light output end is provided with an optical fiber interface (3), and the light receiver body is connected to the input end of the external optical sensor via the optical fiber interface (3).

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