OHSP350B Intelligent Handheld Color Meter Screen Brightness Temperature Spectrometer Irradiance 

Because it is a precision instrument, the manual is very detailed, it is not convenient to display, if you need it, please let me know 

First, what is blue light

     Blue light does not refer to blue light, but to high-energy short-wave blue light with a wavelength between 400 nm and 480 nm, which has a very high penetrating power. The blue light in this wavelength will increase the amount of toxin in the macular area of the eye, the death of light-sensitive cells, the gradual decline of vision, and even induce blind eye disease, which seriously threatens our fundus health. Blue light can be seen everywhere in daily life, but the proportion is generally within the normal health range, and has little effect on vision. Long-term exposure will feel “spicy eyes” and it will be difficult to recover from the eyes.

Second, the source of blue light

    Blu-ray exists in a large number of artificial light sources such as LED screens, LED lights, and fluorescent lights. For example: mobile phones, computer monitors, fluorescent lights, LCD screens, LEDs, etc.

Third, the instrument to detect blue light

      The OHSP350B Retinal Hazard Rapid Tester is a smart instrument specifically designed for rapid detection of blue light. It is an instrument for detecting anti-blue light effects. It has four functions of detection, measurement, screening and comparison. Detection: Quickly detect the anti-Blu-ray effect; Measure: LCD displays the measured value in real time; Screening: Screening different anti-Blu-ray functions; Contrast: Differentiating different anti-Blu-ray levels. In addition, the instrument is easy to use, can be used by hand with a single switch button, and is also very convenient to carry.

    It mainly detects, measures, screens and compares various hazardous light sources and various products that block blue light sources (such as anti-blue glasses).

The main function

Retinal blue light hazard irradiance Blue Light Hazard Weighted Irradiance

Skin heat hazard weighted irradiance

 

Conforms to the standard GB/T20145-2006/CIES 009/E:2002