bookbashuk Chapter 396 The Breakthrough Challenges of Large Sensor Lenses
Chapter 396 The Breakthrough Challenges of Large Sensor Lenses
"I believe many friends want to scold me as soon as they hear that I'm far ahead, saying that I'm imitating some bigmouth braggart again."
But whether I can snatch those four words, I'd like to show everyone a picture first.
Just as Shen Fei had predicted, the live stream chat was flooded with comments from trolls...
"Far ahead? I think it's far behind!"
"Buy the entire Transsion ecosystem and embrace a smart lifestyle; drive a Transsion car and enjoy VIP treatment. Remember, Shenyang Aircraft Corporation doesn't drive the Transsion S7..."
"A certain manufacturer has started its patriotic marketing again. It just goes to show that bragging doesn't cost anything, otherwise the taxes this manufacturer pays would probably exceed those of a small or micro-sized enterprise."
"At this point, even a 1/1.8-inch sole was considered a large sole, and Samsung had it long ago..."
Amid their curses, a 2014 global mobile phone industry imaging technology roadmap appeared on the large screen.
However, there is a unique line of small print below this technology roadmap.
Note: The above technical approach does not include Transsion Technology!
However, Shen Fei didn't show this detail to the audience; he wanted to tease those little black-clad guys.
He pointed to a curve on the graph with the laser pointer in his hand:
"As you can see, this is in line with the industry's normal business rules and the sense of urgency that our large-sensor lens on the Starry Sky brings to the industry."
The industry still anticipates that 1/2.3-inch sensors will become the standard feature in flagship phones in 2015.
1/2.0英寸的要等到2016年，而1/1.8英寸？分析师们普遍认为至少要到2017年，甚至更久才能看到这幺大的。」
Upon hearing this, the fans in the live stream immediately shouted "Keyboard, come on!" They were determined to fight those trolls to the end.
With such advanced technology, why can't we claim to be far ahead?
"Holy crap, looking at it this way, it really does seem to be planned until 2017. This is such an exaggeration."
"I really wanted to laugh at those who said 'all three generations have them.' The three generations are so small, they're two whole generations apart."
"Trolls: I don't want to hear it, I don't want to hear it! It's just a PowerPoint presentation, it's patriotic marketing!"
"As expected, if you have the skills, you can shout whatever you want!"
After the jubilation subsided, Shen Fei spoke again:
"But today, we've brought that time forward by a full three years."
The roadmap on the big screen was split open by a red lightning bolt, and the 1/1.8-inch super-large sensor of the Transsion S5 appeared prominently in the position of 2014.
"This is the flagship main camera we designed for flagship phones. We just compared the lenses our competitors are using, so you should all have a good idea."
The director's close-up shot suddenly shifted to the audience, and many viewers immediately started nodding off...
But Shen Fei paused briefly, then transformed back into Lei Jun mode and began explaining the technical challenges.
"Some people might ask, isn't that just making the sensor bigger?"
What's so difficult about it?
Regarding this question, I would like to invite Wang Feng, the head of our imaging department, to tell everyone the story behind it.
The spotlight shone on the guest seats, and Wang Feng appeared in a close-up shot. Those who were originally planning to make jokes in the live stream instantly deleted their jokes from the chat after seeing this tech guru.
Wang Feng also quickly stood up, went up on stage, and took the microphone!
"Hello everyone! I am Wang Feng! Not the singer you are all familiar with, but a genuine technology research and development personnel."
Let me explain the technical challenges involved.
The familiar applause rang out once again, and although Wang Feng was a technician, he showed no stage fright when he went on stage; on the contrary, he was as smooth as a fish in water.
"This large-pixel, large-sensor lens was actually initiated as soon as our project was established."
Our first 200-megapixel lens also had a large sensor; in fact, that lens was its prototype!
When that footage appeared, the entire industry was shocked because we had started a domestic substitution program, and the technology was quite good!
But many people still think we're crazy for trying to both increase the base size and the pixel count.
At this point, Wang Feng chuckled self-deprecatingly.
"Actually, it wasn't just the industry that was laughing at us at the time. Even Mr. Shen said that we could put the base size at 1/2 inch or larger, such as 2.5 inches, which would be very good. But our team was stubborn as mules."
Now that you've chosen your goal, you must persevere and pursue it relentlessly...
But this stubbornness has also caused us a lot of problems.
At this moment, many audience members were already engrossed in learning the techniques, after all, Wang Feng's speech had exceeded their expectations...
In their view, these tech gurus should only use technical jargon, leaving them completely clueless and clueless, so all they need to do is clap and shout "Awesome!"
But the process felt strangely familiar to them, as if it were somewhat similar to that of a certain friend.
Lei Jun: Still digging? What's the point of buying chips with this much money?!
"The first issue is size, because a mobile phone is not a camera. Cameras can be made very thick, but mobile phones cannot."
Currently, the thickness of mobile phone bodies is generally around 8mm, leaving a maximum of only 6mm of space for the camera module.
A 1/1.8-inch sensor, plus a lens and image stabilization module, would theoretically need to be at least 8mm thick.
At this moment, Wang Feng also took out a set of comparison shots from his pocket. There is no such solution in my industry. He chose equivalent substitutes. They all look very small, but under close-up shots, the difference is still very obvious.
"This is the first problem we encountered, and also the biggest spatial challenge."
The two words also appeared on the large screen behind them.
"In order to fit this large-sensor lens into a 6mm space, we scrapped 17 design options and redesigned the entire optical system."
We replaced the traditional 5p lens with a thinner 6p aspherical lens and reduced the sensor's package thickness from 0.8mm to 0.5mm. But that wasn't enough; we even rewound the coil of the image stabilization motor three times.
This is the final result!
Applause finally erupted from the audience, and at the same time, Lazy Sheep's assistant raised his middle finger and looked at the big screen with a smile.
He finally understood what that familiar feeling was; it was clearly Lei Jun's style... This technician was dishonest!
They're making fun of Lei Jun again, but he seems to like this style.
"If you think this is the biggest problem, you're wrong, terribly wrong!"
He took a deep breath and then shook his head!
"The biggest challenge is the edge imaging problem caused by the large sensor size."
The larger the sensor, the greater the angle of incidence of edge light, resulting in severe vignetting and reduced resolution.
The problem was displayed on the large screen behind them. Seeing the poor image quality, many viewers in the live stream shook their heads, saying the quality was terrible!