"The family heirloom of the butterfly cup is hard to buy, so pour the wine into the cup of colorful butterflies flying over." Fan Wubing held a glass in his hand and asked He Shuisheng curiously, "Is this the butterfly cup that can have a shadow of butterfly?"

"That's right, this is our factory's unique technology, the Butterfly Cup!" He Shuisheng said proudly.

Among the traditional Chinese Pu Opera, Qin Opera, Peking Opera, Hebei Bangzi and other operas, there is a widely circulated drama "Butterfly Cup", which describes a love story that happened in the Ming Dynasty. The thing that men and women in love in the play is the family heirloom of the man's family - Butterfly Cup.

It is said that when you fill this wine glass with wine, you can see a colorful butterfly rising from the bottom of the cup, rising and falling among the flowers, lifelike and inspiring. When the glass of wine is over, the colorful butterfly will die.

The wine glass that Fan Wubing was holding was like a goblet with thin waist and wide feet. It looked like a jade-shaped wine glass with an eclipse bell-shaped edge, with gold inlaid with dazzling brilliance; the outer wall was two dragons playing with beads, colorful; the inner wall was graceful and beautiful, He Shuisheng took a water bottle and poured water into the cup in front of Fan Wubing and Fan Heng. He saw a butterfly shadow on the water indeed came, lifelike, rippling with the water surface.

"Hey! Interesting-" both father and son shouted excitedly.

Fan Wubing’s first feeling is that if this thing is taken abroad, it will probably be a lot of money.

"Butterfly cups have been recorded in the history of our country, and their production technology has long been lost. In recent years, workers and technicians in Panshi City have obtained a ancestral butterfly cup from the people. After careful research and in-depth exploration, they finally figured out the optical principles of ancient artists using skillful cups full of butterflies and wine dry butterfly hidden. They also selected the most beautiful variety of paintings from more than 10,000 butterflies around the world, and finally made the ancient treasure cup appear again. Looking back now, it is really not easy!" He Shuisheng sighed next to him.

Fan Wubing took the cup and watched it carefully, and soon he discovered the mystery.

The ancient butterfly cups in the past were made of porcelain, and all the secrets were hidden in the feet of the cup and it was impossible to see them. It was naturally difficult for outsiders to understand the mystery. However, today, this cup is made of glass, and after careful observation, it is still easy to discover its principle.

The technician put a colorful butterfly on a thin spring hairspring in the cup's feet. As long as the cup is slightly disturbed, the colorful butterfly will bounce. A bead is embedded in the center of the bottom of the cup, and its function is equivalent to a convex lens.

When there is no wine in the cup, the location of the colored butterfly is outside the focus. The real image formed by the convex lens is on the same side as the human eye, and the human eye is generally unable to see clearly. After pouring wine into the cup, the cross-section of the wine is thin in the middle and thick in the side, so the wine becomes a concave lens. The convex lens and the concave lens form a composite lens, thereby lengthening the focal length, so that a clear butterfly pattern can be seen at the bottom of the cup.

"It turns out that the cup is full of butterflies appear, and the wine is dry and the butterflies are hidden. The ancients' use of optical principles is not worse than ours at all!" Fan Wubing couldn't help but admire.

Fan Wubing poured some water in and took it in his hand to look at the butterfly shadow. As he swayed, he suddenly had an idea.

"What effect will this thing be produced if you apply it to the water tank of the humidifier?" Fan Wubing mosuoed the outer wall of the cup and thought it seriously.

After some investigation, Fan Wubing felt that Panshi Glass Factory was still able to accept orders for external equipment of humidifiers. The most important thing now is to come up with a few more perfect sample design drawings.

As a glass device with practical functions, it must be produced in large quantities while satisfying its beauty. Therefore, Fan Wubing dared not be proud of it, for fear that his design would not be mass-produced because of the complex production process. Therefore, he communicated his thoughts with Fan Heng and finally decided to see if the glass factory has satisfactory design capabilities.

"Director He, we have a few preliminary ideas about the style of glassware. I wonder if it can be realized by your factory?" Fan Heng asked He Shuisheng.

This is to examine our technical capabilities. When He Shuisheng heard this, he not only did not feel embarrassed, but he felt that this time it had really attracted a big deal. So he patted his chest and said, "Director Fan, but please don't worry! There are still a few top-notch technical talents here, and there are many masters. Anything that can be made into glass should be fine. I just don't know if you have any sketches?"

"Sketch--" Fan Heng glanced at Fan Wubing and said to He Shuisheng, "It's coming soon!"

Fan Wubing was not idle. He first drew a few ordinary tricks and handed them over to He Shuisheng, and then began to consider the issue of loading the butterfly cup process on the glass water tank of the humidifier. Finally, he finally came up with the final draft.

A large lotus leaf-shaped glassware was coiled with several dragonflies. At the bottom, a small scroll was made using the butterfly cup technology. After adding water, the water continued to flow downwards as the water continued to blow up the mist, and the water surface was rippling all the time, so that the scenery on the picture would be projected on the water surface and move.

"This thing is more complicated, but it is not impossible to achieve, but the cost has increased a lot." Although He Shuisheng was engaged in reception work, he was influenced by his own factory and knew the situation. After reading Fan Wubing's drawings, he immediately made a problem.

Fan Wubing also knew that it would take a while for this thing to be realized. Just adjusting the focal length would require the workers to explore for a while, so he agreed with slight relief, "This is just a test paper. If you do it well, we can talk about specific things in depth. However, I think your factory has a relatively strong technical force, and I agree with the opinions on ordering with your factory."

"Haha, that's great!" He Shuisheng laughed with a smile, but he said in his heart who this young man was? Judging from his appearance, he looked a bit like Fan Heng! But he didn't even think that he was originally a father and son.

Just as he was speaking, a master came over with several apprentices, holding the glassware that Fan Wubing had just drawn.

"Look, it's not very fast--" He Shuisheng laughed and introduced the master to the Fan father and son, "This is the master of our factory, Master Li Deyi and Master Li, he is the old man who was there when our factory was building. If you don't say anything about technology, you are an absolute master!"

"It turns out it's Master Li, I'm lucky to know." Fan Wubing looked at Master Li, and looked at the glassware that it had just been made. He found that it was impeccable in terms of shape and quality, and it had completely reached the level of handicrafts. He couldn't help but exclaim, "I'm a famous teacher! Looking at such a perfect work of art, I can't find any words to praise!"

The master smiled and did not take Fan Wubing's words to heart. He had received so many good words in his life. How could he care about the praise of a young man? There is no need to worry about whether his products will be welcomed. The only thing that makes him unhappy is that the factory orders are too single.

"The one with the butterfly cup craftsmanship will not be made tomorrow, because there are some technical parameters that need to be measured, so you can't see it today-" Master Li said to everyone.

Oh, Fan Wubing nodded and turned around and asked, "Is that thing also energy production? If the process is too complicated, will it lead to too low production efficiency? If the speed cannot be increased, there will be no value for production."

He Shuisheng was a little worried. If the output was low, everything would be fooled. People would have to order in large quantities. You would be like a work of art to go out. Who can bear it?

Master Li glanced at He Shuisheng who was anxious and replied confidently, "No problem, it's just that you need to measure parameters at the beginning. It takes a little more time and will not be able to produce as much as you want."

"That's good, that's good!" Fan Heng also considered this issue, but did not expect his son to raise it first. At this time, he received a positive answer from Master Li. He also felt at ease in his heart, so he nodded repeatedly.

Since the humidifier is indeed a good thing, Fan Heng also hopes to do this. At this time, the core components have been settled and the box separation technology has been implemented. Seeing that the aristocratic humidifier advocated by Fan Wubing is about to succeed, Fan Heng was still quite happy.

Although he was a little worried about Fan Wubing's vigorous profit-making behavior, Fan Heng felt much better when he thought that these things might go abroad to earn foreign exchange in the future. It would be natural to make money from foreigners!

The father and son followed He Shuisheng to move a few places and then said goodbye.

He Shuisheng tried his best to keep him but failed, so he had to let them leave with great regret. After watching the two of them leave, He Shuisheng quickly ran back to the office and wrote a report. After reading it, he felt that he was not satisfied with his words, so he said to a young man beside him, "Xiao Wang, copy this two copies, no, three copies! Remember to use it tomorrow!"
Chapter completed!