Technological power starts with upgrading lenses

After finishing the conversation with Chen Shoutao, Kang Chi actually didn't take this matter to heart.

Unless you are really bored, maybe you can just play around and see if you can earn some proficiency points and relieve the tension of proficiency points...

Early the next morning, just when Kang Chi was about to return to Dongyang and take a vacation for himself, He Yongbin suddenly called him.

"We basically have a thorough understanding of Wu'an's technology, and there are only a few key technologies that we still don't understand."

"So fast?"

Kang Chi was also a little surprised by their progress.

Although Daqin Optics can manufacture cameras, in fact, the entire camera research and development department has not really understood the technology inside.

It's like Kangchi was able to build a lens production line by following the same example at the beginning, but didn't know why it was built in this way.

Therefore, Kang Chi's main task for He Yongbin and others during this period is to thoroughly understand Wu An's technology.

After he had mastered the techniques that they could master on their own, he would go over and explain the remaining technical difficulties to them.

In this way, they will also have the ability to draw inferences from one example.

It’s just that this inference may just be a derivative product of the same technical level.

For example, mobile phone camera modules, security monitoring, etc.

As for developing more advanced things...

They certainly can't be counted on.

It's not that Kangchi doesn't believe in them, it's mainly because it's efficient and low-cost, so there's no need.

On the other side, when He Yongbin heard Kang Chi say that he was fast, instead of being happy, he was actually a little depressed.

The drawings and products are all ready-made, and the company has recruited a large number of R\u0026D personnel to conduct group discussions.

But it took more than a month.

Is it fast?

Do you think they have a lot of talent?

Of course, He Yongbin also admitted that he was good at it.

After all, while the manufacturing department has already started building cameras, their R\u0026D department is still figuring out the technical principles...

This strange situation is enough to explain everything.

After temporarily changing the itinerary, Kang Chi quickly arrived in Shanghai, and in the next few days, he held classes for each technical group one by one to solve problems.

By the time the entire R\u0026D team fully understood Wu'an's technology, a week had passed.

——

Friday afternoon, Daqin Optical Camera R\u0026D Department, conference room.

He Yongbin and others all sat neatly in the conference room, looking at Kang Chi with confidence and expectancy.

After a week of patient guidance from the great master Kang Chi,

They suddenly felt like they were good again!

Especially He Yongbin, who has participated in every technical group’s seminars.

Kang Chi helped him break through more cellophane than he had done in more than ten years of research and development combined!

He felt as if he had been opened up to Ren and Du's two meridians and had been reborn from the ashes.

He is worthy of being a man who can not only develop a camera, but also a photolithography machine!

He Yongbin silently made another deep self-examination in his heart.

You shouldn’t have suspected that the new boss was unreliable before.

He was a little scared now. This boss was so reliable, and he casually came up with something that made him feel like a primary school student...

"After this week's training, everyone has basically mastered the technical principles of Wu'an cameras. Next, I will assign a project to you."

Kang Chi looked at everyone present, and finally focused on He Yongbin.

"This project is also your old business, mobile phone lens modules."

When He Yongbin heard this, he was slightly stunned.

I originally thought that Kang Chi would let them develop the second generation of Wuan,

Or a higher-end mirrorless camera,

I didn’t expect it to be a mobile phone lens.

To be honest, when he was doing mobile phone shots before, he was a bit psychologically depressed...

Kang Chi seemed to see the flash of fear on He Yongbin's face, so he encouraged him:

"You have even mastered Wu'an's technology. I believe that making a mobile phone lens is not a problem at all. It can even be said that this is a dimensionality reduction attack!"

He Yongbin suddenly woke up,

Yes, I already know the camera technology. It’s not child’s play to make a mobile phone lens.

However, the main difficulty in manufacturing mobile phone lenses has never been a problem of high-end technology, but a problem of coordination between cost and performance.

A camera can be sold for thousands or even tens of thousands.

But a mobile phone only sells for a few hundred to a few thousand yuan, and the purchase price of the lens module inside is usually only a few dozen to a few hundred yuan.

Therefore, the requirements for cost control capabilities are very high.

He Yongbin was unable to produce high-pixel mobile phone lenses in the past, mainly due to cost issues. If cost is not considered, 20 million pixels should not be a big problem.

However, after Kangchi opened up the chip industry chain and had its own wafer factory, more than half of this problem was basically solved.

Without giving everyone much time to think, Kang Chi continued:

“I have a few requirements for our first phone lens.”

"First, we don't do any secondary photography. If we do, we just make a three-lens camera module."

"Second, the pixels of the main camera and the secondary camera do not need to be too high. They can be controlled at 10-15 million, but the bottom and aperture must be large, and the CMOS area utilization rate must be above 90%."

"Third, there must be a physical anti-shake system."

After listening to Kang Chi's three requests, everyone present began to fall into deep thought.

It comes with a three-camera module, which is in line with Kangchi’s style.

The third request is quite normal.

But the second one is a bit surprising,

Although as industry insiders, they also know that the image quality of a camera cannot only be determined by pixels, but also depends on sensor size, single pixel size, aperture, etc.

For example, Pingguo's cameras before 14 have always used 12-megapixel cameras, but the shooting quality is no worse than Android phones with 40 to 50 million pixels, or even hundreds of millions of pixels.

But while almost all mobile phone manufacturers are keen to purchase high-pixel camera lenses and use them as their main selling points, Kangchi is doing the opposite and making low-pixel lenses.

Aren’t you afraid that after research and development you won’t be able to sell it?

Regarding this issue, Kangchi has actually been thinking about it for a long time.

Anyway, given his personality, he doesn’t like the practice of using algorithms to forcibly expand pixels when there are too many pixels everywhere. Even if there are not enough physical pixels, he doesn’t like it.

This has no benefit except that the user will get a huge photo with no improvement in image quality.

In fact, for cmos, the more pixels, the better.

For example, the Sony Xperia PRO-I, which sells for more than 6,000 and is known as a mirrorless phone,

Its camera uses a sensor called Exmor Rs, with only 12 million pixels, but it is one of the top mobile phone cameras, and its shooting effects are even comparable to those of compact cameras.

So whether CMOS is good or not mainly depends on the size of the sensor. The larger the size, the stronger the photosensitivity and the better the imaging effect.

As reflected in a single pixel, the larger the size, the stronger the photosensitivity, and the better the imaging quality.

This is also the reason why many people say that cmos does not depend on the manufacturing process.

But in fact, it doesn’t depend on the manufacturing process, it’s just an analog circuit that converts light into digital signals.

Below the analog circuit, there is usually a digital circuit, which is responsible for processing the signals from the analog circuit, and it is very process-intensive.

If the process is too old and the signal processing speed is too slow, the picture may even freeze. On the contrary, it can reduce power consumption and heat generation, and improve the processing speed, frame rate, bit rate, etc. of photos and videos.

Therefore, manufacturing a CMOS usually requires two lithography machines with different processes. First, use an advanced process to brush the digital circuit, and then use a large-scale process to brush a layer of analog circuits.

This structure can be simply understood as a house.

The person standing on the rooftop is responsible for receiving the light signal, and then the person downstairs is responsible for recording and organizing the data.

If there are too many people standing too densely on the top of the building (too many pixels), and the number of people downstairs does not keep up, it will not be recorded. It may be reported ten times from above, and only one recording and sorting is completed below.

Therefore, the large base, large aperture, and cmos area utilization rate proposed by Kangchi must be above 90%, which undoubtedly puts forward high requirements and expectations for the imaging level of this cmos.

In fact, the pixel size of Sony's Exmor RS sensor is 2.4 microns. Based on the size of 1 inch, it should be able to achieve 21 million pixels, but it only has 12 million pixels, which means that its actual use area is less than 60%. It is a deliberate attempt to squeeze out toothpaste.

For fear of fighting with their own black card camera!

But Kang Chi is not afraid. He wants to build a high-end mobile phone lens that is really easy to use. It may not have weird numbers, but the image quality must be good!