| 摘要 |
FIELD: physics. ^ SUBSTANCE: lens consists of five components, the first of which is in form of a biconvex lens, the second consists of a negative meniscus whose convex surface faces the object, on which a holographic optical element with optical power equal to 0.005-0.015 times the optical power of the lens is deposited, and a biconvex lens whose larger convex surface faces the object; the third and fourth components are aspherical positive menisci whose convex surfaces face the object; the fifth component is a plane-parallel plate. ^ EFFECT: significant improvement in image quality, higher aperture ratio and reduced total length of the lens. ^ 3 cl, 4 dwg, 2 tbl |
