The treasure that makes the stars excited is Reed's newly purchased thermal night vision goggles, which are also the favorite of weapons connoisseurs.

For a long time, military operations had to "act as an opportunistic" based on meteorological conditions, such as day and night. If we can overcome the adverse effects of dark conditions on military operations by technical means, it will bring great advantages to combat operations. Under the guidance of this line of thinking, the military night vision technology that makes the night battlefield "transparent" came into being. Military night vision equipment can clearly present the night battlefield of "reaching out and not seeing five fingers" in front of people's eyes at night or under low-light conditions, and has become an important means of night warfare.

And Alaska hunters are also very keen to challenge themselves, since this technology, many people deliberately choose to hunt at night, more fulfilling.

Even if it is not deliberate, many farmers in the western United States often suffer heavy losses when their livestock are ambushed by fierce beasts in the middle of the night, so these people are also extremely keen to equip themselves with this kind of thermal night vision goggles, and the ability to fight at night has become the core combat power of the American Red Neck.

Xing'er took Reed's baby and looked at it carefully, seeing that Leon was still quite confused, so she explained to him.

"This is the night vision goggles that Reed bought, this one is quite high-end, and I just saw about it in a military magazine not long ago. I didn't expect this old guy to be so willing to spend his blood! Xing'er's introduction made Reed very unhappy, and the title between the two shows that they really have a good relationship.

Xing'er continued, "At present, the night vision technology of the U.S. military mainly uses infrared thermal imaging and low-light enhancement to convert invisible or extremely weak light signals into electrical signals, and then amplify the electrical signals to finally convert them into light signals visible to the human eye. In this way, with the help of night vision technology, soldiers can see the fire in the complex night battlefield. ”

Speaking of this, Xing'er suddenly said thoughtfully: "My brother-in-law must be proficient in these, the U.S. military relies on this kind of sophisticated weapons and equipment on the battlefield of anti-terrorism to make those half-baked terrorists suffer." ”

Leon was stunned for a moment, and then realized that the brother-in-law she said was Chris, and some pictures suddenly appeared in front of him, but he was not as depressed as before.

"Brother-in-law? You mean Yue'er is married? Reed got to the point, and it seemed that he knew Yue'er too.

"Not yet, but I guess it's going to be soon, and we're already engaged. My brother-in-law is a Navy SEAL, and he fights quite hard. Xing'er's words were full of pride.

"Oh? Is it? I thought you'd like that one better. Reed glanced at Leon meaningfully, and frankly said that with his understanding of Xing'er, the image of the lonely hero of the Navy SEALs should be more favored by Xing'er, why did Yue'er choose which one? If you have a chance, Reed should ask Xiao Yue'er.

"Of course I like it, but who let that be my brother-in-law~ But your proposal is good, I should ask my brother-in-law to find this type for me, he must have a lot of brothers who are that one!" Xing'er jumped for joy again, completely oblivious to Leon's presence.

Looking at Leon's not very good-looking face, Reed hurriedly reminded him: "I think Leon is also very good~"

Xing'er didn't hide it from Reed, "It's not me that he likes, he has someone else in his heart." ”

"Oh? Is it? Reed looked at the two of them carefully, especially seeing Leon's eyes staring at her, like someone else? Reed didn't know what was going on, but he didn't think Leon didn't have a star in his heart, probably this was a bystander.

Reed didn't say anything, and continued to show off his baby to Leon.

"As early as when the U.S. military fought World War II, night vision technology appeared, which promoted the rapid improvement of night combat capabilities, due to the differences in military technology with the opponent, there were many successful examples of night combat capabilities "generation gap" and "blinding" opponents, when the U.S. troops landed on Okinawa Island, they brought the infrared night vision devices that had just been developed to the battlefield, and the Japanese troops who did not know what they were doing were exposed to the dark night and suffered heavy losses. The same was true of the Gulf War, when Iraq suffered a lot. In short, after tasting the sweetness, the US military has always attached great importance to the research and development of night vision equipment, and the US military invests more than $30 billion in the research and development of night vision equipment every year.

Later, in order to continue to maintain the advantage of night warfare, the US Army began the development of "enhanced night vision goggles" in 2000. The "third eye" attached to the helmet gradually appeared, and the image fusion obtained by a variety of night vision technologies can be very effective in cooperating with the soldier's battlefield situational awareness in a full dark environment. Reed took a small machine from the side, which appeared to be what he called the third eye.

He went on to explain to Leon, "By 2008, the enhanced night vision goggles were equipped with the U.S. Army, and don't underestimate this little thing, which weighs only a few hundred grams, it can work continuously for 7.5 hours and has a thermal imaging recognition rate of up to 80% for standing and moving targets at a distance of 150 meters." ”

"Night vision goggles have also been updated several times," Xing'er snatched Reed's words, this is her area of interest, and naturally she said, "In fact, there are many hunters who use infrared night vision equipment now." The main reason is that it is cheap and good. If the infrared night vision device wants to find the target, it must first illuminate the target with infrared light, and at the same time discover the other party, it will also expose itself. So it's not okay to go to war, but it's okay to hunt. In order to make up for the shortcomings of infrared night vision equipment, the United States successfully developed a low-light night vision device after World War II. Compared with infrared night vision equipment, low-light night vision devices do not actively emit infrared light, but by receiving weak light such as starlight and moonlight reflected by targets on the battlefield, enhancing and amplifying them, and finally forming a night image suitable for naked eye observation. This passive way of working is safer, more reliable, less exposed, and small in size and easy to carry. Unfortunately, there are also defects, the work of low-light night vision devices is greatly affected by the natural environment, and meteorological conditions such as rain and fog will interfere with its normal use. Although the technology has been updated again and again, the dead hole has never been solved! Xing'er shook her head regretfully.

"Aren't you the only one who ever had one?" Xing'er suddenly remembered that Reed had a low-light night vision device, and wanted to show Leon the real thing.

"Sold." Reed has a new style and gives the old one.

"Man! Love the new and hate the old! Xing'er shook her head.

Leon frowned and looked at Xing'er, always feeling that these four words came out of her mouth very inconsistently, where is she qualified to say that others like the new and hate the old. Xing'er didn't notice his slightly disdainful look at all, but Reed saw it in his eyes and almost laughed. It seems that Leon is also very dissatisfied with Xing'er's style. It's a pity that the person concerned is completely unaware.

"Dangdang, dang! And then there's the new baby Reed bought! Infrared thermal imaging night vision goggles mainly use infrared detectors and optical imaging objectives to receive infrared radiation from the target, and convert the obtained infrared energy value into infrared thermal images that can be observed by the naked eye. The advantage of this equipment is that it also belongs to passive night vision equipment, which does not rely on its own infrared light source or with the help of night sky stars and moonlight to work, with good concealment, long distance, high resolution and strong anti-interference ability. The second-generation binocular night vision goggles issued by the U.S. Marine Corps are composed of low-light night vision goggles and infrared thermal imaging components, and the U.S. military currently has a single soldier vision weapon that can be mounted on a slide weapon, which is also the lightest infrared thermal imaging sight that the United States currently has. ”

"But none of them have the pull style that Reed bought!" Xing'er excitedly strokes Reed's new baby again!

"You said that you don't fight again, and you are so willing to buy such expensive night vision goggles." Xing'er feels sorry for Reed.