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Application of Optical Coherence Tomography in Galvo Mirror Imaging

Optical Coherence Tomography, abbreviated as OCT, is an optical signal acquisition and processing method. It scans optical scattering media such as biological tissues by galvo mirrors to obtain three-dimensional images with a resolution of up to micrometers. Optical coherence tomography technology utilizes the principle of interference of light and commonly uses near-infrared light to capture images. Selecting longer wavelengths of light can penetrate a certain depth of the scanning medium and produce live tissue morphology images with micrometer-level resolution. Commercial optical coherence tomography systems have various applications, including art preservation, diagnostic equipment, and obtaining detailed images of the retina in ophthalmology.

Scanning with galvo mirrors using optical coherence tomography can obtain surface and subsurface images of transparent or opaque substances by providing sectional images through the reflection of light by tissue. Because it uses short-wavelength light waves as a detection method, it can achieve high resolution. The main advantages are that it does not require sample preparation, has no ionizing radiation, can image live tissues, has a resolution of up to micrometers, and can quickly and directly image tissue morphology.

Applications of galvo mirror optical coherence tomography in ophthalmology

Mirror optical coherence tomography is a new optical diagnostic technique that can perform non-contact and non-invasive tomography of the microstructures of living eye tissues. Its axial resolution can reach 10 micrometers, and its penetration depth is almost unrestricted by the transparent refractive media of the eye. It can observe the morphology and structure of the anterior and posterior segments of the eye, especially in the diagnosis of intraocular diseases, particularly retinal diseases.

Applications of galvo mirror optical coherence tomography in pathology

Gaivo mirror optical coherence tomography can achieve multi-layer optical storage and high detection sensitivity in high-density data storage. One of its most important applications is to detect early cancerous changes in soft tissues of the human body. OCT obtains clear images of tissue based on the different spectral characteristics and structures of cancerous and healthy tissues. It can diagnose the disease in real-time and accurately through computer signal processing.

Applications of galvo mirror optical coherence tomography in non-medical fields

As mirror optical coherence tomography technology continues to develop, its applications are also expanding to other fields, such as measuring displacement sensors, measuring the thickness of thin films, and other tested materials that can be converted into displacement measurements. It can measure the residual pores of highly scattering polymer molecules, fiber structures, and the integrity of structures, as well as measuring materials' coatings and non-destructive mirror testing of composite materials and ceramics.

With the rapid development of 3D printing technology, laser technology as a new energy source has been widely used in 3D printing due to its advantages of speed and accuracy. The molding accuracy can meet the fine printing of thin-walled structures and micropores, which has been widely used in application fields such as jewelry modeling, denture modeling, and hand model modeling.

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