A comprehensive test system for optical safety and performance of bulbs

Abstract

The present invention relates to a comprehensive test system for the optical safety and performance of a bulb, comprising: a light integrating sphere, which is a hollow sphere, the inner wall of which is uniformly coated with a diffuse reflection material, a test platform arranged inside the light integrating sphere, a photobiological safety tester arranged near the test platform, a light signal sampling port and an observation port provided on the light integrating sphere, a light signal measuring device arranged outside the light signal sampling port, and an observation device for receiving direct light arranged outside the observation port. Compared with the prior art, the present invention expands the scope of use of the light integrating sphere, and in addition to being able to test parameters such as the lumen value, color rendering index, and color tolerance of a light source, it can also detect the light intensity or energy generated by light of different wavelengths, with a high degree of integration and high test efficiency.

Description

Technical Field

[0001] The invention relates to an optical testing system, in particular to a comprehensive testing system for the optical safety and performance of a bulb lamp. Background Art

[0002] With the rapid development of LED lighting technology, the detection of LED lighting products has become an important part of quality assurance. The existing integrating sphere system can only detect the color temperature, illumination, wavelength, color coordinates, color rendering index, power and other optical parameters of LED lighting products, but cannot detect the photobiological safety at the same time. If performance and safety data are required at the same time, manufacturers need to use different equipment for testing. Now that LED lighting has entered the popularization stage, manufacturers need to conduct a comprehensive assessment of the optical safety and performance of the products, and form an electronic database to control and track product quality. However, the existing operation method is very inefficient and cannot achieve this.

[0003] The optical safety and performance requirements of bulbs are the technical requirements for LED light sources that the international market is paying more attention to. Most countries have very strict access systems for these aspects. At present, each test equipment is independent and cannot be used interchangeably. It is impossible to perform optical tests at the same time. Therefore, it is necessary to study the test system that can test the optical safety and performance of bulbs and can conveniently process the data comprehensively. Summary of the invention

[0004] The purpose of the present invention is to provide a comprehensive test system for the optical safety and performance of a bulb in order to overcome the defects of the prior art.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A comprehensive test system for optical safety and performance of a bulb, comprising:

[0007] The light integrating sphere is a hollow sphere with diffuse reflective material evenly coated on the inner wall.

[0008] A test platform is arranged in a light integrating sphere, and a photobiological safety tester is arranged near the test platform.

[0009] The optical signal sampling port and observation port are set on the optical integrating sphere.

[0010] An optical signal measuring device arranged outside the optical signal sampling port,

[0011] An observation device arranged outside the observation port to receive direct light.

[0012] The test platform is located at the center of the light integrating sphere, and is used to place the bulb lamp to be tested.

[0013] The optical biosafety tester is a tester for detecting the passage of different wavebands. As a preferred embodiment, the optical biosafety tester used is a blue light tester.

[0014] The photobiological safety tester is arranged at a position 20-30 cm away from the test platform to detect light intensity or energy at different distances.

[0015] The optical biosafety tester is signal-connected to the optical signal measuring device.

[0016] The inner wall of the light integrating sphere is coated with a white diffuse reflective material, such as a magnesium oxide layer or a barium sulfate layer, so that each point on the inner wall of the sphere is diffused evenly. The illuminance generated by the light source at any point on the sphere wall is the superposition of the illuminance generated by multiple reflected lights.

[0017] A filter can also be arranged outside the optical signal sampling port, so that the measured value of the light detection can be accurate and close to the visual function of the human eye.

[0018] There are one or more optical signal sampling ports and observation ports.

[0019] Compared with the prior art, the present invention expands the application scope of the light integrating sphere. In addition to testing parameters such as the lumen value, color rendering index, and color tolerance of the light source, the present invention can also detect the light intensity or energy generated by light of different wavelengths. It has a high degree of integration and high testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] In the figure, 1-light integrating sphere, 2-testing platform, 3-optical biosafety tester, 4-optical signal sampling port, 5-observation port, 6-optical signal measuring device, 7-observation device, 8-optical filter. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0023] Example

[0024] A comprehensive test system for the optical safety and performance of a bulb lamp, the structure of which is as follows Figure 1As shown, it includes a light integrating sphere 1, which is the most important test component of the test system. It is a hollow sphere, and the inner wall is evenly coated with a white diffuse reflective material, such as a magnesium oxide layer or a barium sulfate layer, so that each point on the inner wall of the sphere is diffused evenly, and the illuminance generated by the light source at any point on the sphere wall is the superposition of the illuminance generated by multiple reflected lights. The test platform 2 in the center of the light integrating sphere 1 is used to place the bulb to be tested, and the photobiological safety tester 3 is set at a distance of 20-30cm near the test platform 2 to detect the light intensity or energy at different distances. For example, a blue light tester is set in this embodiment to detect the light intensity when the blue light is transmitted, so as to obtain the intensity of the blue light emitted by the bulb, and obtain the parameters affecting the human eye.

[0025] At least one light signal sampling port 4 and observation port 5 are provided on the light integrating sphere 1, and a light signal measuring device 6 is provided outside the light signal sampling port 4, and an observation device 7 for receiving direct light is provided outside the observation port 5, which is used to detect the lumen value, color rendering index, color tolerance and other parameters of the light source, and the optical biological safety tester 3 arranged in the light integrating sphere 1 is also connected to the light signal measuring device 6 by signal, so as to facilitate the real-time reception of the detected light intensity, energy and other data. In addition, a filter 8 can be provided outside the light signal sampling port 4, so that the measured value of the light detection can be accurate and close to the visual function of the human eye.

[0026] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A comprehensive test system for optical safety and performance of bulb lamps, characterized in that: The test system includes: The light integrating sphere is a hollow sphere with diffuse reflective material evenly coated on the inner wall. A test platform is arranged in a light integrating sphere, and a photobiological safety tester is arranged near the test platform. The optical signal sampling port and observation port are set on the optical integrating sphere. An optical signal measuring device arranged outside the optical signal sampling port, An observation device disposed outside the observation port for receiving direct light; The test platform is located at the center of the light integrating sphere, and the bulb lamp to be tested is placed on the test platform; The photobiological safety tester is a tester for detecting the passage of different wavebands; The photobiological safety tester is set at a distance of 20-30 cm from the test platform; The optical biosafety tester is signal-connected to the optical signal measuring device; The inner wall of the light integrating sphere is coated with white diffuse reflection material; The diffuse reflection material is a magnesium oxide layer or a barium sulfate layer; An optical filter is arranged outside the optical signal sampling port.

2. A bulb light optical safety and performance comprehensive testing system according to claim 1, characterized in that: The photobiological safety tester is preferably a blue light tester.

3. A bulb light optical safety and performance comprehensive testing system according to claim 1, characterized in that: There are one or more optical signal sampling ports and observation ports.

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