FOLYSKY（WuHan） LTD.
hotline：
027-88111056
technical：
13387504731
FOLYSKY（WuHan） LTD.
When it comes to the history of mobile phone flashlights, it is inevitable to mention the function of mobile flashlights. Mobile flashlights were born from very early counterfeit phones and immediately received widespread praise. As a result, major mobile phone manufacturers began to install flashlight functions. On a dim night, relying solely on the brightness of the phone screen is clearly not enough. At this time, mobile phone manufacturers began to install light beads on the side and back of the phone, and the initial flashlight function was to use ordinary light-emitting diodes.
Mobile phones using ordinary diodes
It was not until the popularity of camera phones that the evolution of mobile flash was brought about. In order to achieve the effect of supplementing light, people began to combine flashlights with camera functions to increase exposure,. Our current mobile phone photography is no less than some low-end cameras. What is the slogan 'soft light dual camera, illuminating your beauty'? I believe it is not uncommon for everyone. So how did our mobile phone flash go from being a regular LED to what we now see as' soft light dual camera '?
People gradually realize that light-emitting diodes cannot meet people's needs. Firstly, the brightness is not enough; Secondly, the lifespan is insufficient; Of course, there is also the most important point: the appearance is too low. Ugliness is the original sin. So gradually, light-emitting diodes began to be phased out. Then some manufacturers began to come up with the idea of xenon lamps.
light-emitting diode
Xenon gas lamp, we all must have seen this word before, where is it? That's right, it's in cars. Currently, the use of xenon lamps in cars is very mature. In the era when halogen lamps were widely used, the "high beam dog" who used xenon lamps was deeply disliked by everyone. In fact, the evolutionary history of mobile phone flash lights shares many similarities with the evolutionary history of car headlights, except that mobile phone flash lights have never used halogen lights. Everyone can also see that our current mobile phones are definitely not equipped with xenon lights, right? It's obviously LED. Why not use it? There are two reasons, first: the volume is too large; Secondly, it consumes too much power. In the era of smaller and thinner phones, having a large light is definitely not feasible. Ugliness is the original sin.
The last thing we used was the LED phone flash that we have been using until now. Thanks to the rapid development of the LED industry, we are able to use such good flash lights. I believe that children's shoes who use their phones early will know that the phone manufacturers who initially tried to use LED flash lights were basically on the brink of bankruptcy or bankruptcy. This is not the reason for the flash lights, but the LED flash lights at that time were indeed strong and unsatisfactory. Basically, after buying a new phone, the flash doesn't light up soon after use. At that time, LED flash was a representative of high-end mobile phones. If you could turn on the bright flash in the dark, you would become the focus of attention, but it was easy to break down and it wouldn't take long to light up. How did you solve this problem?
After all, everyone knows the conversion efficiency of LEDs. If they are very low, they will generate a large amount of heat. In the early days, using high-power LEDs on mobile phones was not possible to achieve very good heat dissipation design. A large amount of junction temperature is generated inside the lamp beads, and if the junction temperature is too high, it will naturally cause serious light decay, or even burn out. The heat dissipation of LEDs has been a challenge for the entire industry until now.
It was not until the widespread application of ceramic substrates that the problem of mobile phone flash lights not being able to work for a long time was gradually solved. Ceramic substrates are actually circuit boards made of ceramics. Of course, this ceramic is not the ceramic we come into contact with in daily life, but a special type of ceramic, belonging to new materials. The heat dissipation of LED is achieved by transferring heat to the heat sink through the substrate. After having a ceramic substrate, our flash lights are no longer afraid of excessive heat that cannot be transmitted, resulting in light decay or dead lights.
The ceramic substrate on a flashlight is very small, about one-fifth the size of a thumb nail cover. This small thing solves the big problem of our mobile phone flashlight, and we can have today's "soft light dual camera".
Follow us
customer service
