HIGH-SPEED LENS Russian patent published in 2002 - IPC

FIELD: cinematography lenses. SUBSTANCE: given high- speed lens includes three components: first component is cemented together from biconvex and biconcave lenses, second component is negative meniscus facing object with concavity and third component presents biconcave lens. Additional lens- negative meniscus facing image with concavity is positioned after third component. This approach provides for design of high-speed lens with focal distance 220 mm, relative aperture 1:2.4 and high-quality image. EFFECT: formation of high-quality images. 1 dwg, 1 tbl