Cutting-edge technology: Starting with individual stealth equipment

On the other hand, Zhang Wei is looking for a special flexible substrate, polyimide film, with a thickness of 25 micrometers and a surface roughness of less than 20 nanometers.

There are only three manufacturers in China that can make this kind of film, and he called them all.

The first two companies hung up immediately when they heard that the order was only for ten square meters.

Finally, at the third company, just like the first two, they refused to accept the order quantity.

Zhang Wei got in through a connection with a senior from the same school who worked at that factory.

That's how it's done.

Cheng Siyuan, who was in charge of the software module, wrote code for 23 consecutive days. The core of the algorithm was a module called "environmental field reconstruction".

Based on the discrete data collected by the sensor array, the ambient light distribution of the entire skin surface is interpolated in real time, and then the color that each pixel should present is calculated.

The mathematical difficulty of this problem exceeded his expectations, and the algorithm failed to converge, getting stuck here.

As time went by, by the fifth week, Huang Chongwei's module had made a breakthrough.

He changed his approach: since magnetron sputtering cannot control the precision of a single atomic layer, then he would not control it, but deposit a thicker layer first, and then use plasma etching to reduce it back.

This is equivalent to replacing "addition" with "subtraction," and the difficulty lies in achieving uniform etching.

He designed a rotating sample stage that allows the sample to rotate continuously during the etching process, thus counteracting the inhomogeneities within the cavity.

On the third day of the fifth week, he tested the first sample that met the requirements.

Seven-layer graphene with an error of no more than 0.05%.

Huang Chongwei took the sample out of the vacuum chamber and ran straight to Lin Chuan's office.

"Boss, it's done."

He immediately handed the sample to Lin Chuan, who looked at the thin film, which was only the size of a fingernail, and then asked, "Can it be made larger?"

Huang Chongwei grinned: "Sure, give me two weeks, a washcloth that big is fine."

Upon hearing this, Lin Chuan nodded: "This size is sufficient."

……

Two weeks passed quickly, and the other modules that everyone was responsible for also achieved results. All that was left was the final assembly.

That afternoon, Lin Chuan and Huang Chongwei were in the company's laboratory.

Huang Chongwei carefully took out a sheet of A4 paper-sized skin from the vacuum chamber and placed it on the operating table.

The covering looked like an ordinary thin film, even thinner than plastic wrap.

Guo Tao began working on the flexible circuit board, which had more than two hundred leads, each only 0.2 millimeters wide. He aimed it with a microscope, his hand as steady as a machine.

Cheng Siyuan was responsible for the final burning process.

Jiang Miaolan watched from the side. She couldn't help with the technical aspects of the work, but she was quietly calculating the expenses.

To date, this incident has cost the company 716 million.

In less than two months, the company's finances were in dire straits.

"alright."

Guo Tao put down his tools, clapped his hands, and breathed a sigh of relief.

A moment later, Cheng Siyuan pressed the burn button, the progress bar finished, and four words popped up on the screen: System ready.

Lin Chuan said succinctly, "Connect the power."

Huang Chongwei paused for a moment, then turned on the power. Everyone was tense and expectant.

The skin lit up briefly, then went out, and everyone held their breath.

Cheng Siyuan tapped a few times on the keyboard: "Sensor normal, processor normal, output normal."

"Start background matching".

Cheng Siyuan pressed Enter, and the black color on the leather cover slowly faded, turning into the wood grain color of the control panel, with even the texture of the wood grain faintly visible.

"Holy... holy crap." Zhang Wei's voice sounded like he was choking.

Lin Chuan immediately peeled the skin off the operating table, walked to the wall of the laboratory, and stuck the skin back on.

The skin is gone!

To be precise, it turned into the color of the wall, even the tiny scratches on the wall were exactly the same.

He ran his hand along the wall, and only where his fingers touched did the outline of the skin vaguely appear.

Guo Tao suddenly rubbed his eyes, then looked again.

"Holy crap?!"

Everyone's expression was one of astonishment. Huang Chongwei stammered, "Really...really invisible...the theoretical data that the boss dreamed about...it's actually true?!?"

At that moment, everyone present realized that they had created the first skin in human history that could truly achieve optical invisibility.

At that moment, the team members immediately became so excited that they danced with joy.

"Shouldn't we get an invisibility cloak?"

"It's unbelievable, they actually did it."

"Boss, you're awesome! You're definitely the next Ramanujan. He invented it in a dream, who would believe that?!"

Lin Chuan was quite calm at this moment, after all, he had accumulated experience from his previous life and was more composed than the others.

But he was also very excited. This experiment not only verified optical invisibility technology, but also indirectly verified the hyperdimensional technology library.

Just thinking about the real cutting-edge technology in it—antimatter, warp drives, spaceships, antigravity technology, and so on—is enough.

Even with his past life experiences and a mental age far exceeding that of Guo Tao and the others, Lin Chuan still found it difficult to remain calm in the face of these challenges.

After a moment, Lin Chuan looked at Cheng Siyuan and asked, "What is the algorithm's response time?"

Cheng Siyuan went to the computer and immediately replied, "The data shows 0.03 seconds."

Upon hearing this data, Lin Chuan nodded.

It's a bit slower than the 0.01 seconds given in the Hyperdimensional Library, but the performance is still excellent despite the minor flaws.

Moreover, given the company's current limited resources, Lin Chuan was already quite satisfied.

Then, he slowly peeled the skin off the wall and held it in his palm.

The thin, almost weightless membrane changed colors under the light.

At this moment, Zhang Wei leaned over for a look, then looked at Lin Chuan and asked, "Boss, have you thought about the application scenarios for this material?"

Without hesitation, Lin Chuan answered, "Military use."

Upon hearing this, everyone nodded in agreement. Zhang Wei pondered for a moment and said, "It can only be used for military purposes. This thing will definitely be regulated, and the regulation will be very strict. It's impossible for it to just enter the market."

Cheng Siyuan said, "If the military finds out, they definitely won't sit still. Deep Blue Technology is about to take off!"

Lin Chuan smiled and said, "I have already thought of the specific application scenarios. We will build an individual soldier optical stealth combat system. In theory, this stealth material is applicable to all kinds of equipment, including tanks, armored vehicles, aircraft, and ships. However, the cost is too high, and there are still many problems to be solved."

Cost is one aspect, and energy is another.

For a large vessel like a warship, starting this device would consume an enormous amount of power, potentially causing the ship's radar to fail to operate due to insufficient power.

Moreover, when used on warships, the optical stealth effect will be greatly reduced.

Because ships cut through the waves at high speeds, they leave very obvious wakes in the seawater.

Large equipment is best used in aircraft, such as fighter jets and transport planes.

However, power supply remains a major problem. In order to achieve optical stealth, the cost is the loss of a series of modules such as range and radar performance, which actually results in a negative improvement in overall combat effectiveness.

At present, it is most suitable for use on individual soldiers.

……