| 摘要 |
The large aperture lens comprises two components, the first one consists of a converging lens and a biagglutinate concave-convex lens consisting of double-convex and biconcave lenses and the second component comprises a negative biconcave lens faced by its knob to the subject and a positive lens. The concave-convex lens is arranged in the second component as biagglutinate and comprises positive and negative meniscuses faced by their concavity to the subject and behind lens there is a positive biagglutinate lens consisting of convexo-convex and biconcave lenses. |
