"The biggest difference is that the active model emits infrared rays to illuminate the object by itself, and then uses the lens on the optical sighting system to catch the infrared rays reflected off the object. This is also the infrared night vision device studied by various countries in the earliest period. This is due to the use of a system that connects the anode to the cathode, which is used to accelerate the electrons. The fatal problem with this method is that the electron acceleration distorts the image formed by the reflection of the infrared rays, and it also greatly reduces the life of the pipe...... This technology has long since been phased out. Moreover, this technology is also the technology currently used on our scope, so the comrades of the 298 factory need to solve this problem! Qin Huaibao can't remember all the words Liu Yijiu said, and he promises not to forget.

Therefore, after arriving in the design room, Liu Yijiu walked back and forth with his hands behind his back and said, while he sat there and recorded quickly.

Liu Yijiu's speech speed was very slow, which was convenient for him to record.

"So, this time we want night vision devices, as well as scopes with night vision function, are asking them to use the passive infrared imaging technology that they are working on now. Or this technology can also be called a low-light imager. There's a key core component here -- like the intensifier. That is, through the faint moonlight, the ambient light emitted by the starlight amplifies the reflected infrared rays around it, which still uses image intensification tube technology, because the positive electrode and the cathode are still connected, there will still be image distortion and the problem of short pipe life. At the same time, on cloudy and moonless nights, the visual distance will become very short. The actual battle in the northeast tells us that in the dark forest without light. This technique of theirs is garbage! Liu Yijiu gritted his teeth and spit out the word.

Qin Huaibao was stunned for a moment, "Master." Can't say that, right? In case they feel that we are disrespecting their technology and not valuing their achievements. Why don't you help us get it? ”

If you say that, you'll probably be beaten to death by those old guys.

You can doubt anything, but you can't doubt their technology.

Qin Huaibao has been in Factory 298 for a long time.

"In this way, if you dare to say anything else, then you will never think that you will have a chance in these things. Although I am still a small officer, I still have the right to do so. "Liu Yijiu threatened Qin Huaibao, if he didn't stimulate these old men, they would raise their tails to the sky.

Last time, if it weren't for Liu Yijiu's knowledge in these aspects, he shocked them fiercely. God knows if they will take Liu Yijiu as a thing.

"And you don't have to take any responsibility, and you can't know much about what they know. You have been there for so long, and what kind of level you have, people have long known. They know it's me who says ......."

Qin Huaibao smiled bitterly on his face, but he was depressed in his heart, they did know that it was you who said it, but you were too far away, and these words came out of your own mouth. In case they lose their minds, get angry with themselves, and beat themselves into the point that they can't take care of themselves, then they will lose a lot!

"Keep writing! The new night vision device must be able to withstand extremely low light conditions. For example, the ability to generate images on a moonless night. Sensitivity needs to be higher, and this can be achieved by attaching a microchannel plate to the image intensifier tube. I have drawn the structure in this drawing, how to achieve it. This is their business, otherwise they would not have to pay for scientific research. The microchannel plate MCP is made of a high-resistance material. The aim is to increase the number of electrons and abandon the acceleration of the original electrons. The degree of image distortion must be reduced to an acceptable range. At the same time, the brightness of the final image needs to be increased......" Liu Yijiu recalled while asking Qin Huaibao to write.

Check every now and then to see if this guy has any logging errors.

Qin Huaibao had already given up the idea of understanding these things at this time. These things are simply not understandable with an IQ like his.

"Is it all recorded?" Liu Yijiu saw that Qin Huaibao had stopped writing and asked him.

"Hmm!" Can it not be recorded?

Relying on his head, obviously it can't be done, but fortunately he brought it up and recorded it with a pen, otherwise, when he got there, he really didn't know how to explain these things.

He didn't know that it was very difficult for Liu Yijiu to recall these things, because he hadn't done much research on this at all.

If it weren't for the fact that the mice in these experiments were all genetically modified and had the ability to remember, the recorded things would be left in their minds, and when they needed to be used later, just like a computer, they could find out most of the content by relying on some keywords, and Liu Yijiu would have to be dumbfounded on this.

After all, any weapon design is a huge system that involves a lot of things, so they must have a super memory.

No one knows how much a person's brain can remember, after all, human research on the brain is only in its infancy.

"These things are all theoretical things, after you write them down, you can memorize them well, and when the time comes, you have to look at this book to say a few words, and the people who lost our base. Now, let's talk about this structural schematic diagram again...... "Liu Yijiu didn't check whether Qin Huaibao had any mistakes.

As long as you memorize some key things, the other party will be able to know.

They are experts in this area.

After finishing speaking, he began to put the structural schematic diagram of the night vision device he designed on the table in front of Qin Huaibao.

This is a sketch, the drawing is crooked, and the annotations on it are extremely simple, not non-standard at all.

Fortunately, Qin Huaibao was able to get to know him.

"Sleepy? If you're sleepy, take a break. Seeing Qin Huaibao's two eyelids fighting non-stop, Liu Yijiu himself also felt a little sleepy, so he said to take a break.

Although these things are simple, it has been almost five hours since eleven o'clock.

Liu Yijiu went outside and opened the door, and the cold wind with moisture coming from outside suddenly made his whole person feel agitated and sober up a lot.

"Smoke, master? You often stay up late in the mountains, don't you? Can you survive without smoking? "Liu Yijiu is not a non-smoker. Instead, he rarely smokes.

Staying up late, both for him and for his body. I've been used to it for a long time.

nodded, and took the cigarette without a cigarette holder handed over by Qin Huaibao. After lighting it, he took a deep breath, and the spicy and stimulating smell of smoke came out after turning in his lungs, and Liu Yijiu immediately coughed.

This thing is so choking.

"Why don't you two sleep so late?" A voice suddenly came from the darkness next to them, which immediately startled the two of them, and when they saw it, it was actually Xie Heping.

Liu Yijiu said hello to him.

"Director, why don't you rest so late?" Qin Huaibao immediately smoked a cigarette and handed it to Xie Heping, and then drew a match to help him light it.

"As people get older, they sleep less. I'm already awake. Looking at the lights in the design room, I thought you forgot to turn off the lights. Although the cost of electricity is low, it is necessary to save some if you can save some money. Xie Heping let the cigarette burn out for a long time in one sip, "Aren't your projects all about the same?" Is there a new project to be carried out? ”

"No, I have a new optical equipment here that needs the help of Factory 298, and I can't leave the work inside, so I can only let Huaibao go over. He didn't know much about these things, so I had to give him a surprise and make him remember. It's a lot easier to communicate with that side. By the way, I will also explain the principle, structure, and precautions of these drawings to him, so that he can better convey our requirements over there......" Liu Yijiu explained to Xie Heping.

Xie Heping would patrol the base in the middle of the night every day. Liu Yijiu knows.

"Xiao Liu, the body is the capital of the revolution, you are so young. With such a talent, you have to pay attention to your body. Otherwise, it will be a huge loss to us in the national defense system. In the past few years, we have lost a lot. Talent training has broken again......" Xie Heping sighed.

Liu Yijiu, this young man, like the old guys inside, is very hardworking.

However, from here, it can also prove how hard this young man has worked hard in the past few years of studying outside.

He knew a lot, and no one suspected anything else.

"Director Xie, you go and rest first, we're almost done here." There was still a small half of the cigarette in Liu Yijiu's hand, but he was not used to the smell, so he directly threw the cigarette butt on the ground and stepped on it with his foot, and then picked up the cigarette butt and threw it in the trash can behind the door.

"I'll listen to what you're writing too. I can't sleep this time......" Xie Heping proposed to Liu Yijiu that he wanted to hear it.

Liu Yijiu did not refuse, and it was impossible for Xie Heping to divulge these secrets of theirs.

"This drawing, you must memorize it, when the time comes, draw a sketch directly on their demo board, how they do it, we don't care, I just need to be famous, remember, right?" Liu Yijiu knocked it off again.

Qin Huaibao nodded.

"As for this structure, I have marked it above, the assembly diagram from left to right, the outermost is the objective lens that receives visible light and near-infrared images, followed by the photocathode, then the phosphor screen, followed by the optical fiber panel...... It is divided into three levels, and the three levels are coupled and enlarged step by step...... "Liu Yijiu wanted to explain the assembly diagram again and tell the working principle.

Qin Huaibao's brain was blank when he heard it, but Xie Heping listened to it with relish.

This made Liu Yijiu feel very strange.

Could it be that Xie Heping is still an expert in this field? It shouldn't be!

"On the lens, tell them that it is best to experiment with zinc sulfide coating, in addition, the input surface of this microchannel plate is as for the focusing image surface, and the output surface is close to the phosphor screen...... "Then the imaging principle or something, Liu Yijiu simply didn't bother to talk about it."

These things, the comrades of 298 are very clear. (To be continued......)

ps: The first update of the guarantee. If the brothers' monthly tickets are still not strong today, the gourd will continue to watch five more, and more manuscripts will be kept......

This is written by the gourd who can't sleep and gets up at three o'clock!