Smartphone Camera Slots: Optimal Functionality with SMA Technology

1. SMARTPHONE CAMERA SLOTS SMARTPHONE CAMERA SLOTS Smartphone customers want high quality image and video capture, free from motion blur, shaking and noise. Each camera slot has different use cases and requirements. As camera components are getting larger, heavier and more complex, and the performance requirements increase, the advantages offered by SMA optical actuators become even more powerful. MAIN (WIDE ANGLE) CAMERA MAIN (WIDE ANGLE) CAMERA Must cover most consumer use cases and performance requirements ULTRA ULTRA- -WIDE CAMERA WIDE CAMERA Increased field- of-view for cinematic and active modes ABILITY TO DRIVE ABILITY TO DRIVE HEAVIER LENSES HEAVIER LENSES HIGH FORCE HIGH FORCE TELEPHOTO & TELEPHOTO & PERISCOPE ZOOM PERISCOPE ZOOM CAMERA CAMERA Optical zoom requires more image stabilisation OCCUPIES LESS SPACE IN OCCUPIES LESS SPACE IN THE END PRODUCT THE END PRODUCT COMPACT AND LOW COMPACT AND LOW MASS MASS FRONT (SELFIE) FRONT (SELFIE) CAMERA CAMERA Maintaining a low z-height is crucial LOW POWER AND LOW LOW POWER AND LOW VOLTAGE VOLTAGE LONGER BATTERY LIFE LONGER BATTERY LIFE ACCURATE MOVEMENT ACCURATE MOVEMENT WITHOUT DISTRACTING NOISES WITHOUT DISTRACTING NOISES PRECISE AND SILENT PRECISE AND SILENT POSITIONING POSITIONING 3D (DEPTH SENSING) CAMERA 3D (DEPTH SENSING) CAMERA Available SMA technology - not covered in this eBook DOESN’T INTERFERE WITH DOESN’T INTERFERE WITH OTHER COMPONENTS UNLIKE OTHER COMPONENTS UNLIKE VCM VCM NO ELECTROMAGNETIC NO ELECTROMAGNETIC INTERFERENCE INTERFERENCE 1 1 Publication by Cambridge Mechatronics Ltd 2023

2. Optical Image Stabilisat ion Autofocus INTEGRATED INTEGRATED AF + OIS AF + OIS MODULE MODULE TILT TILT AUTO AUTO- - FOCUS FOCUS VARIABLE VARIABLE APERTURE APERTURE LENS LENS SHIFT OIS SHIFT OIS SENSOR SENSOR SHIFT OIS SHIFT OIS OIS OIS AF AF INTEGRATED AF + OIS INTEGRATED AF + OIS This single actuator solution offers both macro to infinity AF capability as well as OIS making it an attractive and cost-effective option to introducing OIS to the UW camera. Enabling OIS in the UW will add value when in video or cinematic mode and allow seamless transfer between UW and main cameras during recording. ULTRAWIDE CAMERA (UW) MODULE TILT MODULE TILT With the ability to handle higher amplitudes of movement, introducing Module Tilt into the UW is ideal for enabling action camera functionality in a smartphone at a range of field-of-views. The SMA module tilt design, especially in combination with an ultra-slim SMA AF, means a compact form-factor can be achieved. AUTOFOCUS AUTOFOCUS SMA AF can save about a millimeter in z-height compared to traditional VCM AF solutions enabling handset thickness reduction, enabling a sleeker industrial design, important for some handset form-factors such as folded handsets. 2 2 Publication by Cambridge Mechatronics Ltd 2023

3. INTEGRATED INTEGRATED AF + OIS AF + OIS MODULE MODULE TILT TILT AUTO AUTO- - FOCUS FOCUS VARIABLE VARIABLE APERTURE APERTURE LENS LENS SHIFT OIS SHIFT OIS SENSOR SENSOR SHIFT OIS SHIFT OIS SENSOR SENSOR SHIFT This solution offers an ultra-slim form factor and up to 400 microns of stroke, significantly more than what VCM can currently deliver. Additionally, sensor shift technology provides roll compensation, an advantage over lens shift. SHIFT FOR FOR TELEPHOTO TELEPHOTO TELEPHOTO & PERISCOPE CAMERAS SENSOR SENSOR SHIFT SMA sensor shift is uniquely adaptable to a wide range of periscope camera designs as the product functionality can be separated from the complexities makes it universally compatible with any periscope design— regardless of the number of lenses, prisms, or other optical components involved. SHIFT FOR FOR PERISCOPE PERISCOPE of the optical array. This KEY KEY CHALLENGE CHALLENGE Due stabilisation stroke is needed. The particulars of the lens result in more mass and accommodating in a compact form factor for a smartphone. to the longer lens focal length, a higher image SMA-based length than other market solutions, allowing for better image stabilization, particularly useful for high-magnification periscope configurations. sensor shift OIS can provide a higher stroke size which still require CML is exploring designs that enable both OIS and autofocus (AF) functionalities on the sensor camera design and free it from dependencies on the specific architecture of the periscope camera. to simplify the overall 3 3 Publication by Cambridge Mechatronics Ltd October 2023

4. INTEGRATED INTEGRATED AF + OIS AF + OIS MODULE MODULE TILT TILT AUTO AUTO- - FOCUS FOCUS VARIABLE VARIABLE APERTURE APERTURE LE LEN NS S SHIFT OIS SHIFT OIS SENSOR SENSOR SHIFT OIS SHIFT OIS INTEGRATED INTEGRATED AF A single actuator integrating both AF+OIS will improve the quality of selfie cameras, not just for better selfies but also for enhanced functionalities like video calls, particularly if the SMA solution is as slim as a VCM AF-only solution. AF + + OIS OIS SELFIE CAMERA AUTOFOCUS AUTOFOCUS SMA AF can save a millimeter in z-height compared to traditional VCM AF, important for fitting the AF underneath the display components in a handset. KEY KEY CHALLENGE CHALLENGE There is growing interest in adding ultra-slim autofocus functionality to selfie cameras in smartphones. The challenge with selfie cameras is the need to minimize the thickness of the setup due to the display screen overlapping with the camera components, making it critical to maintain a low Z-height. 4 4 Publication by Cambridge Mechatronics Ltd 2023

5. INTEGRATED INTEGRATED AF + OIS AF + OIS MODULE MODULE TILT TILT AUTO AUTO- - FOCUS FOCUS VARIABLE VARIABLE APERTURE APERTURE LENS LENS SHIFT OIS SHIFT OIS SENSOR SENSOR SHIFT OIS SHIFT OIS LENS LENS SHIFT SHIFTOIS CML’s providing for image designs years of mass production. Note that a separate AF is required. OIS SENSOR SENSORSHIFT Sensor shift is especially suited to larger image cameras as it less mass. Stabilization on the image sensor benefit of roll compensation. SHIFT OIS OIS most the mature industry stabilization. available solution standard Many sensor means format moving following 5- allow for the MAIN CAMERA (WIDE-ANGLE) MODULE MODULETILT Offers shake providing the best image quality across the image. effective for cinematic and active modes and conditions. TILT the INTEGRATED INTEGRATEDAF This is the most cost-effective AF+OIS solution, integrating both AF and OIS in a single actuator and enabling variable support. Coupling two functionalities some limitation performance. AF + + OIS OIS highest amplitude whilst compensation Especially aperture between can in the to total in low-light lead VARIABLE VARIABLEAPERTURE APERTURE The SMA iris allows for better image quality through control over depth Applicable when sizes reach inches. AUTOFOCUS AUTOFOCUS SMA AF can save a millimeter in z-height traditional VCM enabling handset reduction for sleeker designs or folded handset form- factors. improved of sensor 1/1.3 compared AF to field. solutions thickness industrial image around 5 Publication by Cambridge Mechatronics Ltd 2023

6. PRODUCT PRODUCT KEY FEATURE KEY FEATURE DESIGN DESIGN KEY ATTRIBUTES KEY ATTRIBUTES CML’S SMA CML’S SMA PLATFORM PLATFORM TECHNOLOGY TECHNOLOGY Higher Compensation Angles Uniform Suppression Across the Image Roll Capability Action Camera Suitability     High angle suppression for a new era of high- quality movies MODULE TILT OIS MODULE TILT OIS Cost-Effective Simpler Design Single, unified AF & OIS Control & integration Z-Height Efficiency     World’s first AF + OIS integrated single actuator 8 8- -WIRE AF WIRE AF + OIS + OIS Roll compensation Optimized performance for Larger sensors Integration compatibility Superior low-light performance     CML’s SMA actuators and controller ICs enable the highest performance autofocus (AF) and optical image stabilisation (OIS) in leading smartphone cameras. Flagship camera spec, including roll suppression. SENSOR SHIFT SENSOR SHIFT OIS OIS Tried and tested mature, high force, non-magnetic OIS actuator Product Maturity & proven track record Simplicity of Design & OIS cost efficiency Integration compatibility    LENS SHIFT LENS SHIFT OIS OIS Quick and accurate focussing Ultra-slim design Integration compatibility Enhanced video calls and selfies     Lowest z-height product available AUTOFOCUS AUTOFOCUS Enhanced image quality Optimized light control Image processing resource savings Increased creative control     Very low mass, low power actuator delivering depth of field control VARIABLE VARIABLE APERTURE APERTURE 6 6 Publication by Cambridge Mechatronics Ltd 2023