It is well known that taking pictures at close range when the light is particularly dark, no matter how powerful the low light and dark light photographing ability, no flash can be shot, including the SLR. So on the phone, it has spawned the application of LED flash.

However, due to the limitations of material technology, most of the current LED flashlights are made of white light + phosphor, which limits the spectral range: blue light energy, green and red light energy is very small, so use The color of the photo taken by the LED flash will be distorted (white, cold tone), and due to spectral defects and phosphor composition, it is easy to shoot red eyes and shine, and the skin color is pale, making the photo more ugly, even after the late “facelift” The software is also difficult to adjust.

How to solve the current mobile phone? Generally, the dual-color temperature double LED flash solution adopting the bright LED white light + LED warm color light is to make up the missing spectrum part of the LED white light by using the LED warm color light, thereby simulating the spectrum which almost completely coincides with the natural solar spectrum, which is equivalent to obtaining The natural external light of the sun makes the fill light effect the best, and eliminates the color distortion of the ordinary LED flash, the pale skin, the flare and the red eye.

Of course, with the innovation of technology, such dual-color temperature dual-flash has been widely applied to smart phones, and such a configuration has been applied to smart phones on a large scale.