How is a 'star' born? Revealing the secret of Huawei Pura 70 Ultra super focusing telescopic lens

There is no doubt that under the “arms race” created by the involution 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 lens length) is also gradually lengthened, resulting in the increasing size and thickness of the camera module, which affects the handheld experience.

In this context, the aesthetic design order of mobile phone appearance has been broken, and a large number of products with "Oreo" on them have appeared on the market. Manufacturers only promote hardware parameters and ignore the thinness, aesthetics and sense of ceremony of mobile phones, which has become a core pain point for many users.

Taking the common current 1-inch outsole mobile phone lens as an example, the thickness is generally about 15mm. You know, the thickness of the general mobile phone body is generally around 8 or 9mm, which means that the lens is 60% thicker than the mobile phone, which greatly affects both the look and feel.

Faced with the contradiction between the cameras that are constantly getting fatter and taller and the limited body space, some manufacturers have tried to solve it before, but they all ended in vain.

For example, Xiaomi demonstrated a retractable large-aperture lens in 2020. In addition to being retractable, its ultra-large aperture can increase the amount of light entering by 300%. But it is a pity that now, 4 years later, it is still not applied on Xiaomi mobile 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. When raised, it becomes a portrait lens with an equivalent focal length of 50mm, which is equivalent to wide-angle and telephoto. combination. However, OPPO has yet to release a mass-produced model equipped with this technology.

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

On the one hand, to achieve telescopicity, a mechanical structure is essential, so the phone may become thick and heavy. On the other hand, if a telescopic structure is used, dustproofing and waterproofing are another big issue, and reliability must be ensured. How to solve this?

Since Huawei launched the P series in 2012, in the past twelve years, the P series has always been a promoter of innovation and progress in mobile imaging technology, leading the development direction of mobile imaging technology. How to break the situation, Huawei Pura 70 series has its own understanding and answer - the industry's first super-concentrating telescopic camera, with its unique rotating telescopic lens structure, successfully realized a 1-inch outsole sensor in an 8.4mm body. The F1.6 large aperture is the perfect combination with the thin, light aesthetics and sense of ceremony of the mobile phone.

Moreover, Huawei also gave it a unique name in the world: "Stellar Module", which is both technological and romantic.

With the video "The Birth of a Star: Huawei Pura 70 Ultra Factory Visit", we can get a glimpse of the unimaginably rigorous production and testing process behind the "Star Module".

From the working principle, Huawei Pura 70 Ultra super-concentrated telescopic camera uses a rotating guide rail transmission system to create a larger working space for the lens in a 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 thickness space does not increase the thickness of the entire phone, making the phone significantly thinner.

It sounds simple, but the complexity of implementation is beyond imagination. Behind this innovative design lies the countless wisdom and hard work of Huawei engineers, as well as their ultimate pursuit of quality.

On the whole, the birth of the star module is divided into two stages. The first stage is the assembly of the Stellar module and the complete machine. There are 255 rigorous processes that require precision in every step of the manufacturing process.

First, it is an extremely harsh dust-free environment, which requires level 100 dust prevention and spacecraft manufacturing level cleanliness. Secondly, there are parts and assembly processes that are accurate to the nearest millimeter. Every part of the Stellar module reaches micron-level manufacturing precision, and the minimum tolerance of springs and other parts needs to be controlled to 0.01mm when assembled. In addition, the gear parts are installed by hand by professional craftsmen, and are as fine as hairline engravings, achieving high-precision alignment of 0.005mm. When the variable aperture is assembled on the telescopic lens, the assembly accuracy can reach 0.015mm, which is less than the diameter of a hair/silk. . After precise assembly, the star officially began to be embedded into the complete machine, with strict laser calibration throughout the process to ensure accuracy.

If you want to show your strength, you also need to work behind the scenes. After completing the high-precision assembly, the second stage needs to be completed - completing the stellar module test and the complete machine test. After a series of rigorous tests and "fierce eyes", it can officially enter mass production.

Among them, the Stellar module has passed 20,000 buffer tests and 300,000 load-bearing lifting tests, ultimately achieving no fear of pressing, bumping, or falling. The whole machine has passed the 2-meter deep dive test and achieved 2-meter IP68 dust and water resistance, which can provide continuous and comprehensive protection for the rotating and telescopic lens.

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

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

For example, when the user accidentally presses, knocks or collides with 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 stability and smoothness. buffering function. Before the phone falls and touches the ground, this system can also actively obtain the acceleration and gravity sensor data of the entire phone, use an algorithm to determine its weightless fall state in real time, and retract the main camera lens module before the phone falls and touches the ground, thus achieving This ensures the high reliability of the entire machine.

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

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

This rhythmic and textured tone makes people feel like 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, to the exclusive red circle embellished with the lens, to the professional mechanical sound when the lens is extended, every creation is a kind of emotional value. enjoyment.

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

Written at the end:

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 deep in the human heart. As the crystallization of the perfect fusion of technology and art, Huawei Pura 70 Ultra cleverly borrows the image of "star structure" and transforms it into the core concept of product design and the source of inspiration for technological innovation.

Its super light-concentrating retractable camera is just like those distant and bright stars in the universe. It not only represents the ultimate exploration and breakthrough of technology, but also contains the romantic feelings of infinite possibilities for capturing light and shadow.

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