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How does the automatic dimmer work？

2021-11-02

When it detects the light source, these special mirrors will darken, which can be achieved by electrochromism. This is the main reason why automatic dimming mirror is usually called electrochromic mirror. Electrochromic materials will change color under the action of current. When voltage is sent to them, the mirror will darken.

If the voltage is removed, it will turn on. The electrochromic material added to the automatic dimming mirror allows the voltage to change the way it reflects and absorbs light.

The following are the main components of the automatic dimmer:

Environmental sensor – as the name suggests, an environmental sensor senses and detects ambient light. If the sensor detects that the ambient light is insufficient, it sends a signal to the control unit to make it work.

Glare sensor – the sensor measures the amount of light falling on the mirror and sends the corresponding signal to the control unit.

Control unit – the function of the control unit is to monitor the functions of the two sensors and then decide whether to reduce glare.

Dimming mirror also has many names, which depends on its manufacturing method, such as SPD glass, smart glass, liquid crystal, photochromic, thermochromic, electrochromic and so on. But no matter what its name is, its main purpose is to change the glass from transparent to colored, opaque or colored when light is detected.

The electrochromic material added to the automatic dimming mirror can make the voltage change the way it reflects and absorbs light

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