| 摘要 |
<p>A zoom lens for a video camera comprising sequentially from a side of an object: a fixed first lens group (1) constituted by a first concave lens, a first double convex lens, a second concave lens, a second double convex lens and a meniscus convex lens; a movable second lens group (2) constituted by a meniscus concave lens, a double concave lens and a convex lens, a fixed third lens group (3) constituted by a single lens having at least one aspherical surface; and a movable fourth lens group (4) constituted by a concave lens and a convex lens at least one of which has at least one aspherical surface. <IMAGE></p> |
