How far is the mobile phone camera distance from the "SLR camera-level all-round anti-shake"?

Samsung and Apple both achieve dual camera optical image stabilization! Samsung Note 8 released earlier has just declared itself as "the world's first smartphone with dual camera optical image stabilization". Apple did not let everyone down, and finally equipped the two cameras with optical image stabilization on their iPhone X. (OIS) function, but it is not regrettable on the iPhone 7 Plus! Then, as the heavyweight function of the two major mobile phone industry leaders, why does double-lens optical anti-shake get so much expectation and attention from everyone? As we all know, the camera function has always been one of the most important factors affecting the decision-making of mobile phone consumers, and major mobile phone manufacturers have also made it the main competitive point of the product. In order to let everyone get the "sLR camera level" experience on mobile phones, major manufacturers can be painstaking and actively seek various "black technologies." Among them, the dual camera equipment and optical image stabilization technology have become almost a must for major mobile phone brands. Dual camera optical anti-shake is difficult to achieve until Samsung introduced Note 8 in August this year, there is no mobile phone that can achieve true dual camera optical image stabilization. With dual cameras, both of them can achieve optical image stabilization, which has become a major problem for the entire mobile phone industry. More generally, the optical image stabilization technology is used only for one of the cameras, the other is not used, or the two cameras are completely abandoned. The root cause of the retrospective problem: At present, the optical image stabilization adopted by various mobile phone manufacturers basically realizes the movement of the lens through the voice coil motor (VCM), and since the magnetic coil of the built-in magnet coil generates a magnetic field, it is required to be in two cameras. When optical anti-shake is achieved on both sides, it is necessary to maintain a certain distance between the two to avoid mutual interference. This is also why the current dual-camera optical anti-shake camera is much larger in size than single-camera optical anti-shake. There are also some manufacturers trying to solve this problem from the structural design, such as adding a magnetic shield or placing the flash between two optical anti-shake VCMs, but the core problem has not been solved, and the increase in volume and cost is inevitable. The realization of Samsung Note 8 and iPhone X dual-camera optical anti-shake has taken another major step toward the improvement of the mobile phone user's photo experience. However, we believe that to make the mobile phone camera experience reach the "full-size SLR camera-level effect", not only the realization of the optical anti-shake device on the dual camera, but also the major optical anti-shake effect, still need a major breakthrough: for the camera, The most important thing is the light. Most light camera modules are capable of taking good photos in well-lit conditions. Because the aperture of the mobile phone camera module is very large, the aperture lens of F1.7~F2.4 can get enough light from the image sensor in a very short exposure time. However, in dim scenes and at night, it is not the same. At this time, it takes a long exposure time to get enough light to make the image clear. During this time, if X, Y, Pitch (rotate around the X axis), Yaw (rotate around the Y axis), and Roll (rotate around the Z axis), there will be a little bit of shaking in the 5-axis spatial dimension, and the entire image will change. Obscured. Of course, another way is to shorten the exposure time by pulling up the ISO value, but the cost of pulling the ISO value is a lot of defects. Optical anti-shake technology has emerged to allow users to capture clear, low-noise photos in a variety of different scenes. This is also the main reason for everyone to further pursue the optical image stabilization of the dual camera.
SLR camera-level full-scale 5-axis anti-shake is fundamentally because the current VCM optical anti-shake technology on the mobile phone allows the lens to move back and forth on the plane. In fact, it can only achieve anti-shake in Pitch and Yaw, and X and Y translation directions. , can not compensate for the problem of hand shake on the roll. However, people can't control which axis of the phone can only be shaken. Only the 5-axis (pitch, yaw, roll, X, Y) all-round anti-shake technology can solve the problem fundamentally. In fact, such technology is not out of reach. By moving image sensors (not moving lenses), it has been implemented on high-end full-frame professional cameras, and has confirmed the quality of photos taken even in dynamic and low-light environments. Also very good. This makes us believe that it is feasible to transfer such technology and 5-axis optical image stabilization to mobile phones, and it should be the ultimate goal that mobile phone brands need to achieve! Note: Our 5-axis anti-shake here refers to the 5-axis spatial dimension anti-shake of Pitch, Yaw, Roll, X, Y respectively; while some mobile phone manufacturers on the market currently claim to be 5-axis anti-shake, but it is not. They refer to Pitch, Yaw, X, Y, and then the AF focus direction is also counted, and the Roll axis anti-shake is not possible.

X, Y, Pitch, Yaw, Roll 5-axis spatial dimension anti-shake Image Source: Sony α7 II official release video The MEMS OIS to be introduced here, can provide such a solution, from performance, stability to cost, The mobile imaging optical image stabilization problem is completely solved, and its use is completely unaffected by the mounted camera.
MEMS OIS--The world's first solution to achieve a full range of 5-axis anti-shake for mobile phone cameras . MEMS OIS, developed by MEMSDrive, is a micro-electromechanical electrostatic drive motor that can achieve full-range SLR cameras with 5-axis optical image stabilization through moving image sensors. The way to achieve it in the phone camera. MEMS OIS can compensate X, Y translation and rotational movement of the image sensor on a plane very quickly and accurately, thereby compensating for the tilt position of the optical axis due to hand shake in different spatial dimensions. The existing VCM technology realizes anti-shake by moving the lens and can only provide 4-axis compensation. The MEMS OIS realizes anti-shake by moving the image sensor, so it can perform all-round 5-axis compensation, and achieve the same anti-shake effect of the full-width SLR camera. .

MEMS OIS 5-axis optical image stabilization At the same time, MEMSDrive OIS has the following advantages: • 5-axis anti-shake (pitch, yaw, roll, x and y) • 5 times faster • Hundreds of times lower power consumption • 10 times higher precision • Self With two-axis accelerometer • Compatible with any autofocus, shutter and zoom lens • 3D imaging • Super resolution
Advantages of MEMS OIS in optical anti-shake of mobile phone dual camera Since MEMS OIS is an electrostatic motor, it has the following advantages when applied to a dual camera of mobile phones: 1. Reduce the size of the camera module. Since the MEMS OIS does not have a magnet, there is no electromagnetic interference, and the standard 8.5 x 8.5 mm AF motor can be used directly. Compared with the VCM optical image stabilization technology, the size of the entire camera module can be greatly reduced. 2. Avoid interference from the coil to the signal. The Radiant Antenna generated by the coil will affect the antenna signal of the mobile phone and cause signal interference if it is not properly shielded. The MEMS OIS does not contain coils, so this will not happen. 3. Continuous camera power consumption is reduced by hundreds of times. The maximum current generated by MEMS OIS is only 62uA, which is much lower than 100mA such as VCM, which can greatly reduce power consumption. The current continuous camera and camera mode has high energy consumption and high stability requirements. Currently, only EIS (Electronic Anti-Shock) can be supported, and if MEMS OIS is used, it can not only guarantee ultra-high stability, but also consume power. Can be reduced to a minimum. 4. 5-axis anti-shake final image quality improved. MEMS OIS does not need to move the lens, but moves the image sensor, so mobile phone manufacturers can choose the most suitable lens and AF motor, and the lens tilt will not cause the image quality to be reduced. 5. Quality control. MEMS Actuator MEMS motors are manufactured by semiconductor processes that can be replicated in large quantities and maintain high quality and high yields, with the larger the production volume and the lower the cost. VCM is a product assembled with one or twenty components, even if the amount is large, there will be a cost limit. We believe that the five-axis optical image stabilization of the mobile phone dual camera is really perfect. And the mobile phone camera "full-size SLR camera class" experience is not far away!
About MEMSDrive Inc.

MEMS Drive Inc. is an innovative semiconductor company dedicated to the development, manufacture and marketing of cutting-edge MEMS drive motors. At present, the products are mainly used in portable electronic mobile devices such as mobile phones, sports cameras, wearable devices, virtual reality, drones, automobiles, computer vision and other cameras. Its core team has more than 10 years of design and mass production experience in the field of MEMS motors. Starting with the first professional-grade optical anti-shake electric motor MEMS OIS, based on precision moving image sensor technology, MEMSDrive will create more innovative camera functions.