How is a “star” born? Revealing the secrets of Huawei's Pura 70 Ultra super-focusing telescopic lens–Fast Technology–Technology changes the future

There is no doubt that under the “arms race” created by the internal circulation of mobile imaging, the imaging capabilities of mobile phones have been greatly improved.

But the price is that the sensor size of mobile phone cameras continues to increase, and the TTL (total length of the lens) is gradually lengthened, resulting in the continuous increase in the size and thickness of the camera module, affecting the handheld experience.

In this context, the aesthetic design order of mobile phone appearance was broken, and a large number of products with “Oreo” on their backs appeared on the market. Manufacturers only promoted hardware parameters and ignored the thinness, aesthetics and ritual of mobile phones, which became the core pain point for many users.

Take the lens of a common 1-inch large-bottom mobile phone as an example, the thickness is generally about 15mm. You should know that the thickness of a general mobile phone body is generally about 8-9mm, which means that the lens is 60% thicker than the mobile phone, which greatly reduces the appearance and feel.

Faced with the contradiction between the camera that is constantly “getting fatter and taller” and the limited body space, some manufacturers have tried to solve it before, but all ended in failure.

For example, Xiaomi demonstrated a telescopic large aperture lens in 2020. In addition to being retractable, its ultra-large aperture can increase the amount of light entering by 300%. Unfortunately, four years have passed and it is still not used on Xiaomi phones.

In 2021, OPPO also demonstrated a pop-up telescopic lens, which can also be raised and lowered. In normal state, it is a wide-angle main camera lens, and when raised, it becomes a portrait lens with an equivalent focal length of 50mm, which is equivalent to a combination of wide-angle and telephoto. However, OPPO has not yet released a mass-produced model equipped with this technology.

It can be seen that the retractable lens is recognized by the industry as an ideal solution to the above contradiction. However, there is a huge gap between reality and ideal.

On the one hand, to achieve telescopic, a mechanical structure is essential, so the phone may become thicker and heavier. On the other hand, if a telescopic structure is made, dust and water resistance is a big problem, and reliability must be guaranteed. How to solve this problem?

Since Huawei launched the P series in 2012, the P series has been a driving force for innovation and progress in mobile imaging technology over the past twelve years, leading the development direction of mobile imaging technology. How to break through, Huawei Pura 70 series has its own understanding and answer – the industry's first super-focus telescopic camera, with its unique rotating telescopic lens structure, successfully achieves a perfect combination of a 1-inch large-bottom sensor, F1.6 large aperture, and the thin and light aesthetics and ritual sense of the mobile phone in an 8.4mm body.

and,Huawei also gave it a unique name in the world: “Star Module”, which is both technological and romantic.

With the help of the video “The Birth of a Star: A Visit to the Huawei Pura 70 Ultra Factory”, we are able to take a peek into the incredibly rigorous production and testing process behind the “star module”.

From the working principle, Huawei Pura 70 Ultra super focusing telescopic camera adopts a rotating guide transmission system to create a larger working space for the lens in the narrow body. When the camera is working, the lens automatically extends, and the increased thickness space is used for the focusing movement of the camera lens; when it is not working, the lens automatically retracts, and the storage space does not increase the thickness of the whole machine, making the thickness of the phone significantly thinner.

It sounds simple, but the complexity of implementation is beyond imagination. Behind this innovative design, Huawei engineers have put in countless wisdom and sweat, as well as the ultimate pursuit of quality.

In general, the birth of the Stellar module can be divided into two stages. The first stage is the assembly of the Stellar module and the assembly of the whole machine, which involves 255 rigorous processes and requires precision in every step of the manufacturing process.

The first is an extremely harsh dust-free environment, which needs to achieve 100-level dust prevention and spacecraft manufacturing-level cleanliness. The second is the parts and assembly processes that are accurate to the millimeter. Every part of the Star module has achieved micron-level manufacturing accuracy, and the minimum tolerance of parts such as springs needs to be controlled at 0.01mm when assembling. In addition, the gear parts are installed by hand by professional craftsmen, with fine hair engraving, achieving 0.005mm high-precision alignment. When the variable aperture is assembled to the telescopic lens, the assembly accuracy can reach 0.015mm, which is less than the diameter of a hair/silk. . After precise assembly, Star officially began to be embedded in the whole machine, with strict laser calibration throughout the process to ensure that it is accurate to the millimeter.

If you want to be a real star, you need to do some hard work behind the scenes. After completing the high-precision assembly, you have to enter the second stage – completing the star module test and the whole machine test. After a series of rigorous tests and “eagle eyes and golden eyes” perspective, you can officially enter mass production.

The Stellar module has passed 20,000 buffer tests and 300,000 load-lift tests, and is no longer afraid of being pressed, bumped, or dropped. The entire device has passed a 2-meter deep dive test, achieving 2-meter IP68 dust and water resistance, which can provide continuous and comprehensive protection for the rotating telescopic lens.

Such meticulous workmanship not only reflects Huawei's strict requirements on product quality, but also demonstrates its deep concern for consumer experience.

It is worth mentioning that Huawei Pura 70 Ultra has also designed a set of sophisticated buffer structures inside the rotating telescopic lens structure. This structure consists of 12 guide pillars and 8 springs, and uses high-strength and high-toughness piano steel as the spring material to ensure the stability and durability of the lens.

For example, when the user accidentally presses, knocks or bumps the main camera, its built-in position detection system and intelligent control system can quickly identify the abnormal situation and drive the motor to quickly retract the module, achieving a stable and smooth buffering function. Before the phone falls to the ground, this system can also actively obtain the acceleration and gravity sensor data of the whole phone, determine its weightless falling state in real time through the algorithm, and retract the main camera lens module before the phone falls to the ground, thus achieving high reliability of the whole phone.

In addition, the Huawei Pura 70 Ultra rotating telescopic lens also has a polymer liquid silicone protective layer, which has excellent tear resistance, heat resistance, aging resistance, corrosion resistance, etc. Even if the user accidentally lets cola, sugar water, cosmetics and other foreign objects penetrate into the gap, the phone can be soaked in clean water and cleaned with a dust-free cloth to ensure the clarity and service life of the lens.

Not only that, the Huawei Pura 70 Ultra's star module also brings innovation to the user experience, making every photo taken by the user full of ritual. Experts from the Huawei camera team have carefully developed a motor drive algorithm. This algorithm dynamically adjusts the motor drive frequency to tune the sharp sound of the motor when it rotates at high speed into a rhythmic tone, so that the tone rises synchronously with the module.

This rhythmic and textured tone makes people feel as if they are in a professional photography environment. When users use Huawei Pura 70 Ultra to record their lives, from the XMAGE logo on the imaging module, the exclusive red circle embellishing the lens, to the professional mechanical sound when the lens is extended, every creation is an enjoyment with full emotional value.

There is no doubt that the star module of Huawei Pura 70 Ultra is not only the result of technology, but also the result of unremitting pursuit of quality. From precision parts to rigorous testing, every link demonstrates Huawei's commitment and responsibility to consumers. Its birth will undoubtedly bring users an unprecedented imaging experience, and will also promote technological progress and quality improvement in the mobile phone industry.

In conclusion:

As one of the three major celestial bodies in the universe, “stars” not only illuminate the boundless universe with their eternal shining light, but also become a symbol of beauty, hope and unremitting pursuit in the depths of human hearts. As the crystallization of the perfect fusion of technology and art, Huawei Pura 70 Ultra cleverly borrows the image of “stellar structure” and transforms it into the core concept of product design and the source of inspiration for technological innovation.

Its super-focusing telescopic camera, like the distant and bright stars in the universe, not only represents the ultimate exploration and breakthrough of technology, but also contains the romantic sentiment of capturing infinite possibilities of light and shadow.