For the blind, reading and writing are very difficult tasks. The books that we normal people use are invisible to them, so they can only read Braille books with their hands. However, if this盲人 reading device becomes a real product someday in the future, it will greatly assist the blind. Place this blind person's reading device on a regular book, and it will convert the text on the book into Braille and project it onto the tablet of the reader. In this way, even ordinary books can be read by the blind just like reading Braille books. For some people who do not understand Braille, this blind reading device can scan the text, convert it into voice, and play it through the speaker. In this way, the blind can directly listen to the book, which is very convenient to use.