AFOCAL ATTACHMENT FOR TV CAMERAS AND PHOTOGRAPHIC CAMERAS

摘要

FIELD: physics, photography.SUBSTANCE: afocal attachment consists of the first component as a single positive lens (1) and the second component as a single negative lens (4). The first component has an afocal correctional component of the single magnification located between the positive (1) and negative (4) lenses and designed as series located concavo-convex negative meniscus (2) and convex-concave positive meniscuses (3) with equal focal powers touching to each other with convex surfaces. Focal distances of menisci (2) and (3) are equal to the focal distance of the positive lens (1) of the first component:. The distance between the positive lens (1) and the point of contact of surfaces of menisci (2) and (3) is equal to half of the focal distance of the positive lens (1):, the distance between the menisci (2) and (3) is equal to: d=0. The focal distance of the negative lens (4) of the second components is equal to:and it is located from the point of contact of surfaces of menisci (2) and (3) at the distance:where "?" - magnification of afocal attachment.EFFECT: increase of resolution of objects at the expense of increase of angular magnification.4 dwg, 3 tbl? - "?"