At present, there are about 9 million people with visual impairment in China.

In the survey, the reporter found that the market of the blind supplies and appliances in our country has the polarization. The low end products are rich, but the high-end products are extremely scarce.

A student from Beijing blind school said: "we especially hope to have such a blind stick that reminds us of something that prevents us from bumping."

Another student said, "there are so many books that we can't read. We need something that allows us to read."

Is it possible for these blind students to buy Ultrasonic blind sticks and blind reading machines badly?

Reporters visited the ordinary commercial bookstore and medical supplies store in Beijing, and found that there were very few supplies for blind people in the market. Only the Beijing disabled people's supply and development center in Fengtai District of the city had a relatively complete variety.

Here, the most common daily necessities, such as blind cane, blind mirror and blind watch, account for the overwhelming majority, ranging from 11 Fen cent Braille paper to dozens of dollars of low vision aids. Others, such as speech thermometers, wireless voice blind doorbell, blind man overflow alarm, and so on, are also a lot of humanized little things.

In this Sales directory, the statistics show that the blind products of different specifications have reached over one hundred and fifty kinds, and the high-end products of high-tech products, such as ultrasonic blind sticks, infrared blind shoes and inductive mouse, are basically blank.

Xu Xiaoming, the director of the national disabled supplies development and supply center, said: "the demand for blind people is gradually increasing, and more and more. They need some auxiliary accessories with acousto-optic walking. Now there is no domestic, we are also developing."

According to our understanding, at present, the sales of blind goods in China are mainly given to the blind by welfare agencies and government procurement. The market is relatively immature. The most popular electronic high-end products of blind people are the few imported products that are very expensive because of the lack of development.

Recently, Tsinghua University has developed a Braille display monitor that can help blind people read ordinary books. This kind of high-end product, which costs only a few thousand dollars and is very suitable for disabled people, has less than one hundred units in a year because no manufacturer invested.

"Blind people's supplies, especially the development of computers, are generally longer, and the level of technology required is relatively high. The quality of our products is very good, and the potential of the international market will also be very large," said Mao Yu Hang, Professor of automation at Tsinghua University.

It is estimated that the market for blind products in China is hundreds of millions of yuan.

Analysis of the industry, with the rapid development of China's economy and the continuous improvement of the social security system, the purchasing power of the blind and the pursuit of quality of life are increasingly improving. The blind products with superior performance, versatile functions and high technology content will surely form a huge market.