Some laws obeyed by the beam expanding by use of the thin lens are discussed.

讨论了用薄透镜扩束时应遵从的规律。

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One method is presented for determining focus of thin lens by diffraction image in terms of the study results.

并根据研究结果，提出一种通过衍射图像确定薄透镜焦距的方法。

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Structure design, mould design and manufacturing, injection forming and second processing of thin lens are introduced.

介绍薄型透明片的结构设计及模具设计制造、注射成型、二次加工。

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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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The new model captures Full HD AVCHD video clips as well as 16.2 megapixel still images through its innovative and exceptionally thin 5x optical folded zoom lens.

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Then your doctor uses a thin tube equipped with a camera lens and light (laparoscope) to view the area.

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