People explore the wonders of the starry sky through telescopes. In large telescopes and observatories, high-precision optical mirrors, including spherical, aspherical, parabolic, and flat mirrors, serve as fundamental components. For instance, the Very Large Telescope (VLT) of the European Southern Observatory, the Keck Observatory, and the Gemini Observatory all rely on large optical elements as essential technical support.
Optical components in space missions can capture the spectral information of distant galaxies, aiding humanity in understanding the origins of the universe. They also help scientists study dark matter and dark energy in the cosmos.
Optical imaging has become a crucial tool in medical diagnostics. Techniques such as Optical Coherence Tomography (OCT) and Laser Scanning Confocal Microscopy (LSCM) provide high-resolution images that offer ample information for diagnosis and treatment. Endoscopy is another significant application of optical imaging in the medical field. In biomedical engineering and research, various biosensing technologies benefit from the use of optical components, including fluorescence biosensors, electrochemical biosensors, and optical biosensors, among others.
Optical components have extensive applications in defense and scientific research, covering a wide range of areas including aviation automation, target acquisition and tracking, multispectral observation, electro-optical reconnaissance and surveillance, infrared stealth and counter-stealth, laser countermeasures and defense, digital optical imaging, spectral identification technology, photovoltaic energy security, and fiber optic communication technology.
Optical components are also prevalent in various environmental monitoring applications. Technologies such as optical coherence tomography, optical filters, and optical sensors are used to detect and analyze the environment on which humanity depends. These applications include monitoring solar radiation, atmospheric pollutants, and water resource contamination, among others.
Laser systems are a major application area for optical components. They are used in technologies such as LiDAR, laser projection, laser marking machines, laser scanners, laser welding, and laser cutting equipment. These systems are ubiquitous, spanning from scientific research to industrial production, from medical devices to various aspects of daily life.
The application of optical components in imaging and optoelectronic systems primarily manifests in imaging, filtering, focusing, improving image quality, and optical sensing. Optical imaging systems have become core technologies in many fields, such as medical imaging, military reconnaissance, drone aerial photography, astronomical observation, and manufacturing. In this article, we will explore the working principles of optical imaging systems, high-resolution imaging technologies, image quality, and image processing.