Basic Structure and Working Principle of Rigid Endoscopes

Rigid endoscope The system primarily consists of an optical imaging system and an illumination system. From the outside, the optical component appears as a slender metal tube containing a complete optical system composed of numerous lenses. The optical imaging system comprises three major subsystems: the objective lens system, the image-rotating system, and the eyepiece system. The inverted image formed by the objective lens is rotated into an upright image by the image-rotating system and then transmitted to the eyepiece, where it is further magnified before being observed by the human eye, as shown in Figure 1. To achieve different viewing angles, various prisms must be incorporated. Endoscopes designed for different applications are manufactured with varying shapes, outer diameters, and lengths to meet specific user requirements. The illumination transmission system is composed of optical fibers that transmit light from a cold light source through the fibers to the tip of the endoscope, thereby illuminating the object being observed.

Rigid endoscope -Shenyang Shenda Endoscopy Co., Ltd. was founded in the 1980s and is one of the earliest domestic manufacturers of medical endoscopes. Rigid endoscope R&D and manufacturing enterprise. After more than 30 years of relentless efforts, a variety of endoscopes—including the uniquely designed curved-tube hysteroscope—and their associated products have been widely adopted in clinical diagnostics and minimally invasive surgery.