Focusing type light field microscopic imaging system for three-dimensional microscopic particle image velocity measurement system and F number matching method

• Main Authors: LIU YAN, HUANG YIZHI, SONG XIANGLEI, SUN KAI, HUANG BAOKUN, SU RUI
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2024
• Subjects: INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; MEASURING; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; TESTING

The invention discloses a focusing type light field microscopic imaging system and an F number matching method for a three-dimensional microscopic particle image velocity measurement system, and compared with a non-focusing type light field microscopic imaging system, the focusing type light field microscopic imaging system provided by the invention has the advantages that by changing the relative positions of a microlens array and a CCD (Charge Coupled Device) sensor with a microscope tube lens, the imaging precision is improved; the spatial resolution of the area near the focal plane of the objective lens of the system is obviously improved, and an F number matching method of the focusing type light field microscopic imaging system is analyzed and put forward according to the structural characteristics of the focusing type light field camera and the infinite correction microscopic imaging system. According to the system and the method provided by the invention, the problems of velocity vector measurement er