LENS OPTICAL DEVICE AND OPTICAL PATH TRANSMISSION METHOD BASED ON SAME

摘要

A lens optical device and an optical path transmission method based on same. A collimating lens (140) fixed on a collimating interface (137) receives a laser beam; after collimating, the collimated laser beam is propagated to a first total internal reflection interface (111) for total internal reflection, to form a first totally internally reflected beam; and then the first totally internally reflected beam is propagated to a refracting/reflecting intersection interface (114) for reflection and refraction; the reflected light beam is propagated to a first focusing interface (138) perpendicular to the transmission direction of the reflected light beam, a first focusing lens (141) fixed on the first focusing interface focuses the arriving reflected light beam, and then propagates the reflected light beam to a light detector (103) for detection. The refracted light beam is propagated to a refraction regulating interface (115) perpendicular to the transmission direction of the refracted light beam and then light transmission happens; the light beam is transmitted to a second total internal reflection interface (112) and is totally internally reflected, and then the totally internally reflected light beam is propagated to a second focusing interface (133); a second focusing lens (142) fixed on the second focusing interface focuses the arriving reflected light beam and propagates the light beam to a fiber (104). The present invention improves the fiber propagation efficiency and reduces the cost of the lens optical device.