Lighting source testing machine and testing method

Abstract

Disclosed are a lighting source detection machine and a lighting source detection method. The lighting source detection machine includes a base, a wide-area dynamic optical detection device, a processing device, a driving conveyor and a sorting device, wherein the wide-area dynamic optical detection device includes a plurality of solar cells, and the driving conveyor includes a feeding arm and a conveying belt. The detection method includes that the feeding arm draws a lighting source of an illustrated LED (light-emitting diode) and transfers the lighting source on the conveying belt, the conveying belt conveys the plurality of lighting sources to be detected to detection positions on the base and supplies power to drive the lighting sources to shine, the solar cells receive optical signals, transfer the optical signal into electric signals, and transmit the electric signals to the processing device to perform Fourier transform, Fourier reverse transform after noise signals are removed, and stroboscopic and stroboscopic effect detections, and finally the processing device drives the sorting device to sort every LED.

Description

【Technical field】 [0001] The invention relates to a detection of stroboscopic and stroboscopic effects of an illumination light source, in particular a detection machine and detection method for an illumination light source. 【Background technique】 [0002] With the evolution of science and technology, the use of LEDs as lighting equipment continues to innovate, and product performance continues to be continuously improved. However, due to unstable power supply, the luminous intensity of the light source changes with time, the circuit design and the unreasonable design of the lighting device. The emitted light produces periodic and non-periodic flickering of luminous intensity; and this kind of flicker, once in the frequency range that can be perceived by human vision, will cause discomfort, fatigue, and even damage to rotating objects due to the flickering of the light source. Misjudgment of the speed of rotation can lead to accidents and injuries. Therefore, when the fluct...

AI Technical Summary

Problems solved by technology

If during the rotation, the light emitted by the LED under test is as follows figure 2 The stable halo pattern and color phenomenon shown indicate that the current LED to be tested has no obvious stroboscopic problem in the human visual sensitivity range, and will not form a strong stroboscopic effect; on the contrary, if it is observed from the surface of the gyro like image 3 The multiple patterns with different colors are shown, and each halo will show rich changes in rotation direction, rotation speed and color with the change of the rotation speed of the gyroscope, which means that the LED to be tested is in the visual sensitivity range visible to human beings. If there is a stroboscopic problem, it should be judged as a defective product and not suitable as a lighting source

[0005] However, such a detection method must use human eyes to judge the pattern change of the optical detection gyroscope, which cannot achieve automated detection operations, cannot effectively improve detection efficiency, and is even less likely to perform batch detection operations; Judgment is error-prone and imprecise, resulting in a relatively high chance of omissions during detection

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