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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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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Using precision casting method to produce ultra-thin lens is a new manufacturing technology which saves both Labour and time.

用精密浇注法生产超薄光学透镜是省工省时的生产新工艺。

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

ENGADGET: Panasonic announces Lumix GF2 pricing and availability, plenty of other models too

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.

CNN: Ectopic pregnancy