Rigid scopes consist of the eyepiece, light post, ocular assembly, rod lenses, spacers, objective assembly, and other important accessories. The structure of the rigid scope seems simple, but in fact, it contains many small and delicate accessories, and these small accessories are an important and indispensable part of its composition of it.
The optical system of a rigid scope consists of an objective lens, a column lens set, and an eyepiece. The objective lens determines the viewing angle and field of view of the endoscope and is responsible for image acquisition; the lens set is responsible for image transmission and the eyepiece magnifies the image and transmits it through the eyepiece.
The Angle of View: the incident light of the object image, which first passes through the objective glass, enters the objective lens, and is then transmitted in parallel.