Using ARM + GPU as its embedded multicore processing hardware architecture and supporting interfaces including Ethernet, USB and serial ports, the system integrates high-frame-rate camera image acquisition, signal extraction, wavefront phase reconstruction, miniature deformable mirror control, and host-computer communication. Parallel multithreaded algorithms running in a real-time operating system enable high-speed wavefront signal processing and kilohertz closed-loop correction bandwidth, with a user-friendly interface developed across platforms using the Qt graphical framework. Different types and specifications of optoelectronic components, including wavefront sensors, imaging detectors and deformable mirrors, can be selected flexibly to suit application requirements. This solution offers a compact design, high-speed closed-loop operation and flexible configuration, with wide-ranging applications in ophthalmic imaging, space-based optical remote sensing, and field astronomical observation.

Figure 1 Schematic of the miniature adaptive optics system

Table 1 Example of a miniature adaptive optics system

Figure 2 Miniature adaptive optics system correction of wavefront aberrations: (left) before correction; (right) after correction