LED strobe refers to the number of times an LED light flashes in a certain period of time, usually expressed in hertz (Hz). Stroboscopic flicker has a great impact on the visual perception of the human eye, and if the strobe is too high or too low, it will cause damage to people's vision. Therefore, it is very necessary to detect LED flicker. Let's introduce how to detect LED flicker.
1. Use a mobile phone camera to detect.
Using a mobile phone camera can easily detect LED flicker. Here's how:
Turn on your phone's camera and point the camera at the LED light.
Adjust the shutter speed of your phone's camera to the fastest, usually 1 1000 seconds or faster.
Observe the flashing of the LED light in the camera, if the number of flashes is more, it means that the strobe is higher;If the number of flashes is low, the strobe is low.
2. Use a professional strobe detector.
A professional strobe detector can detect LED strobe more accurately. Here's how:
Turn on the strobe detector and point the detector at the LED light.
Set the test frequency range and test time of the detector.
Start the test and observe the strobe data displayed on the detector.
According to the test results, judge whether the strobe of the LED light is appropriate.
3. Use computer software for testing.
Some computer software can be used to detect LED flicker, such as Flicker Free, F.lux, etc. Here's how:
*And install the appropriate computer software.
Open the software and connect the LED light to your computer.
Set the test parameters of the software, such as the test frequency range and test time.
Start the test and observe the strobe data displayed on the software.
According to the test results, judge whether the strobe of the LED light is appropriate.
4. Precautions.
When performing LED strobe detection, you need to pay attention to the following points:
The detection environment should be stable and avoid external interference.
During the detection, it is necessary to ensure the normal operation of the LED lamp to avoid inaccurate detection results due to faults.
Different people have different feelings about stroboscopy, so it is necessary to judge whether the strobe is appropriate on a case-by-case basis.
If you find that the strobe of the LED light is too high or too low, you need to take measures to adjust or replace the LED light in time.
Related question: What is the effect of LED strobe on the human eye?Answer: LED strobe too high or too low will cause damage to people's eyesight, long-term exposure to this environment is easy to lead to eye fatigue, dryness, vision loss and other problems. Therefore, it is very necessary to detect LED flicker.
Why can LED flicker be detected with a mobile phone camera?A: The shutter speed of the phone camera is very fast, which can capture the rapid flashing of the LED light. By observing the number of flashes of the LED lights in the camera, you can preliminarily judge whether the strobe of the LED lights is appropriate. However, this method is not accurate enough and can only be used as a basis for preliminary judgment.
Why do you need to use a professional strobe detector for testing?A: A professional strobe detector can detect LED strobe more accurately, and can provide more detailed test data and analysis results. By using a professional strobe detector, you can judge whether the strobe of the LED light is suitable more scientifically, so as to protect people's vision health.
How to choose the right led light?A: When choosing an LED light, you need to pay attention to whether its strobe is suitable. Generally speaking, the LED light strobe for indoor lighting should be below 100Hz, and the LED light strobe for outdoor lighting should be above 500Hz. In addition, you also need to consider the color, temperature, brightness and other factors of the LED lamp to choose the right product for you.