When Zhao Yuan heard this, he looked at it curiously.

The glass workshop, he didn't care much about it, just a small business for herself.

He cared about the arsenal, the land, and the merchant ships.

Unexpectedly, in just a few months, she made a lot of 100,000 taels.

This can't be said to be a small business.

Zhao Yuan began to be curious, what she was tossing about.

Yun Dai opened the box and took out a pair of transparent ...... from it Glass.

"What is this?" Zhao Yuan took it and looked at it, two round lenses, and a strange thin shelf.

"It's called glasses." Yun Dai took the glasses and put them on the bridge of her nose, "That's how they are used." ”

Zhao Yuan looked at her and said with a smile: "What is the use of being so weird?" ”

"For people with bad eyes." Yun Dai said, "The emperor has seen people who can't see things clearly when they are far away? ”

"Yes." Zhao Yuan thought for a while, "When King Alcohol was young, his eyes were magical, and he couldn't see the appearance of the person on the other side clearly. His son, who was eight years old, was in the same situation. ”

"It's called myopia. His son probably inherited him. Yun Dai smiled, "Look at this lens, there is thickness in the middle, which is actually a magnifying glass for imitation." You can magnify things in the distance so that your eyes can see clearly. ”

"So amazing?"

Zhao Yuan took it, "Show me." ”

Yun Dai took off her glasses and put them on his eyes.

Zhao Yuan looked at her and frowned: "I feel dizzy for a while." ”

Yun Dai sneered: "This means that your eyesight is very good, and you are not nearsighted." ”

Zhao Yuan hurriedly took off his glasses and said, "In this way, if this mirror is worn by King Alcohol, he will be able to see it clearly?" How much does this sell for in your shop? ”

"From ten taels to five hundred taels."

“…… So expensive? ”

"It's not expensive at all. Each person's myopia degree is different, which should be customized according to each person's situation. Yun Dai explained, "It's all hand-polished, and it takes a lot of work to make a pair, and the price is naturally expensive." ”

"Then why are some worth ten taels, while others are sold for five hundred?"

"The material is good, the appearance is good, and the packaging box is expensive." Yun Dai said.

"That's more than fifty times the price?" Zhao Yuan shook his head, "Since the function is the same, why should people choose the expensive one." ”

"Your Majesty, you don't understand." Yun Dai took away his glasses, "It's called taste." There are a lot of rich people in our big week. ”

"What do you have the money to do with this?"

"Follow the trend, compare."

"With whose wind?"

"Emperor's." Yun Dai opened another box and took out a pair of gold-rimmed glasses, "You see, this is a frame made of pure gold, which can definitely highlight the emperor's high-end taste." As long as you bring it and show it to your courtiers, someone will naturally follow suit. ”

Zhao Yuan raised his eyebrows: "To me?" My eyes are so good, I don't need this. ”

"This pair of glasses is not myopia, it is flat glasses."

Yun Dai unfolded her glasses, brought them for him, looked at them for a moment, and nodded, "Sven scum, this palace likes it." ”

Zhao Yuan blinked: "Don't faint." ”

"That's nature." Yun Dai smiled, "This one is only decorative." I still have to sell sunshades, of course I don't have this technology yet, it's still under development. I first sell myopia glasses, reading glasses and flat glasses. ”

Zhao Yuan took off his glasses and asked, "How much does this pair cost?" ”