Light-energy mobile phones are by no means as simple as "solar batteries plus mobile phones". It is the crystallization of cutting-edge technology that has attracted the attention of the global mobile communications industry, and many major international companies have put a lot of effort into it. A Japanese company launched a prototype that can make a one-minute phone call after charging for one hour. It has no practical value at all. Some time ago, a company in the United States also launched a prototype, which can only be used for a few minutes after charging for an hour, but has no practical value.
There are multiple technical thresholds in light energy mobile phones. The first threshold is photoelectric conversion material technology. The second threshold is the low-power technology of mobile phones. The third is the battery and its charging and discharging technology. The patents we have applied for include glass anti-reflection technology, side-light concentrating technology, photoelectric conversion module technology, photoelectric conversion current consumption reduction technology, intelligent charging control technology, intelligent output technology, etc.