Active alignment is a technology that optimizes the image quality of camera modules by adjusting the relative position and orientation of the lens and the image sensor in six degrees of freedom (X, Y, Z, rotation X, rotation Y, rotation Z) using a feedback loop based on image analysis¹. Active alignment can provide optimal image quality across the entire field of view, which is especially important for high-resolution, wide-angle, and multi-camera applications². Active alignment is an established and efficient manufacturing process for producing high-end camera modules for mobile devices, automobiles, security systems, and other applications¹³. Some of the advantages of active alignment are:
- It can compensate for the tolerances and variations of the components and assembly process, resulting in higher yield and lower cost².
- It can enable miniaturization and slimming of camera modules by reducing the need for mechanical spacers and shims².
- It can support advanced features such as optical zoom, optical image stabilization (OIS), autofocus (AF), and optical fingerprint recognition²⁴.
