FAST LENS Russian patent published in 2003 - IPC

FIELD: optics. SUBSTANCE: fast lens has first positive lens; first negative meniscus whose concave surfaces face image, its thickness being equal to 0.22 of focal length of lens accurate to 10%; aperture diaphragm; second negative meniscus; second positive lens; and positive lens assembled of two glued lenses. Second negative meniscus is assembled of two glued lenses and second positive lens is convexo-convex lens. All concave surfaces of positive lens assembled of two glued lenses face image. EFFECT: enhanced image quality throughout entire field of vision. 1 cl, 2 dwg