"Are you sure you want to find me an apprentice to make your glasses? Of course, if you have the money to buy a lot of equipment and mechanize, that's another matter. ”

Obviously, the old man is not optimistic about Wang Zhengguo's proposal, in his world, although the processing and production of glasses is not an art, it is definitely precision machining and assembly, and it is impossible for ordinary people to learn it in a short period of time.

He has been working on glasses for a lifetime, and he has been in the industry for most of his life, how he doesn't understand how difficult it is to train qualified glasses workers, and he just smiled in his heart about the ideas mentioned by Wang Zhengguo.

Feeling the disdain of the old man, this hit Wang Zhengguo, who was originally very thoughtful, thinking about it, he always felt that the old man's so-called training apprentice was very difficult, and the apprentice he wanted was not the same concept, maybe the old man thought too complicated, and equated the apprentice with the apprentice.

Explain again: "Old man, I'm only talking about apprentices, not apprentices, and they don't need to learn your exquisite skills. For example, the glasses I want to make this time, the lenses do not need to be grinded, I provide finished lenses, all the specifications are the same, and the glasses I make also require uniform specifications, so you only need to bring some apprentices who can assemble the lenses and frames according to the process requirements. ”

After patiently explaining his requirements and the requirements for the apprentice, he took out a pair of glasses, that's right, Wang Zhengguo had spent money to get a pair of popular toad glasses, and now they are in front of the old man.

Toad glasses are a new thing that only appeared on a large scale in World War II, and the Republic rarely appears, the old man saw the glasses for the first time, and he was a little puzzled about how the lenses were gray-green, shouldn't the glasses be transparent, right?

Frowning and looking carefully, he felt the weight of the glasses again, this time Wang Zhengguo got a genuine toad lens from the southeast, made of silicate glass lenses, and added silver halide elements during the production to realize the discoloration and polarization of the lenses. Therefore, after starting, the weight feels not much different from traditional silicate myopia glasses.

I touched the lens carefully, and then found something strange: "Your spectacle lens still has color, I think it should be added on purpose." This lens is also a flat lens, and in every way, it doesn't look like it's used by people with myopia or presbyopia, but it's a bit like sunglasses invented by the Americans, right?"

I didn't expect this old man to know about sunglasses, but he is still quite knowledgeable, it seems that when he was young, he must have been engaged in the glasses industry, even if he went to a staff member of a state-owned optical store now, he might not be able to tell what this toad glasses was.

"That's right, this is the sunglasses invented by the Americans, and now they have gradually become popular in China, mainly as decorations, but this thing is very expensive, and this pair of glasses costs me more than 100, so many people in China want to buy them, but they can't afford them. ”

The old man also knew that sunglasses, which are only decorative in many cases, must be more expensive to import, and he could probably guess what the glasses were to be assembled for him this time, so he put away the toad glasses and placed them firmly on the soft cloth.

"I've seen these glasses roughly, and there is certainly no big problem with the assembly, it is no different from the assembly process of ordinary metal-framed glasses. However, the lenses used in these glasses are much more technical than ordinary lenses, so can you make this thing?"

At this time, the old man had successfully aroused his interest and made glasses for most of his life, and now he saw a new lens technology, and naturally he was interested, and he was very curious about how this young man made this kind of lens.

Putting away all the bits and pieces on the table, and putting aside the watch that had been half assembled before, he planned to talk to Wang Zhengguo officially.

"So, if you can bring the lenses, I can put them together with metal frames for you, and if it can be done, I'll have to see if it's okay, and if it's okay, I can try mass production the way you say." ”

I didn't expect that it would be so simple to move people, and it seems that for this kind of person who has faith and pursuit, he still has to do what he likes in order to be caught.

"There is definitely no problem with lenses, I will start to organize production in the last half a month, and I am lucky to be able to get your help today, which can be regarded as a big trouble for me to make glasses, you can rest assured, I will produce a small number of lens samples within a week, and then it depends on your craftsmanship." ”

The subsequent meeting was much simpler, with a general understanding of the old man's situation, and it was agreed that a week later he would bring a group of apprentices to learn lens assembly, leaving the toad glasses that he had bought at a high price, and waving his hand away.

Walking out of the alley and seeing the gate of Shudu on the opposite side, I also felt extremely solid at this time, the whole person was full of strength, and I was infinitely close to success, and Shudu didn't seem to be very attractive.

.....

The three-day wait didn't take too long, and when he was fine, Wang Zhengguo still went to the laboratory to guard the laboratory, although he was no longer an assistant in the laboratory, his current work was more important than an assistant.

During the period, we also followed up different coating tests, some of which could not withstand the hardness test after coating and could not play a predetermined effect;

"Today we have changed to a new coating process, and the technical test results just obtained are very good, after the test, the hardness test data has been able to reach the minimum level we require, and the process cost is quite acceptable, so I can proudly announce that the surface wear resistance technology of PMMA resin lenses has been successfully completed. ”

Liu Sanshi took a freshly baked test data and handed it to Wang Zhengguo, the steel wool brush machine next to him was still rotating at high speed, and the fluff kept rubbing on the surface of the new lens, which was testing the hardness of the resin lens after the second coating.

The surface hardness test of the lens is mainly to look at the scratch density left on the surface of the lens after the steel wool has been rubbed, and the surface hardness grade of the lens can be tested by comparing the scratch density data of the standard hardness.

"It's not enough to just look at the hardness data, we also have to test the adhesion of the coating, if the adhesion of the coating on the surface of the lens is not enough, it will lead to the peeling off of the coating, which is also an absolutely unacceptable problem for lens coatings, so continue to prepare for the test and don't rejoice too soon." ”