In contrast with zoom system, the simple optics systems meet the requirements of low cost and high feasibility.

在满足设计指标的前提下，和变焦系统相比，该光学系统结构简单、成本低、可行性高。

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To apply theory of dynamic optics, it indicates the moving curve resolution type of the zoom group versus the compensating group.

应用动态光学理论给出了变倍组、补偿组的变焦运动曲线解析式。

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At last, the application of matrix optics is demonstrated in designing a zoom system of a general camera lens.

最后以设计一个普通的摄像物镜为例，演示了矩阵光学在设计变焦距镜头中的应用。

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Both models maintain their slim profiles by incorporating an ultra-thin 4x optical zoom lens with folded optics.

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However obvious the idea seems, zoom binoculars are rare in the stratosphere of sport optics.

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Ideal for capturing wildlife and action-packed sports, the upgraded super-telephoto zoom builds further on the premium performance of its predecessor with enhanced optics and faster, more responsive autofocus.

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