| 摘要 |
<p>The zoom lens has a first element consisting of a biconvex cemented double lens and a convex single lens. A second element has a negative meniscus lens and a biconcave cemented double lens. The third element is composed of a positive double lens and a meniscus lens. The next element has a negative meniscus lens and a positive meniscus lens. The final element comprises a binconvex lens, a negative element, a double lens and a convex lens.</p> |
