The third lens group (G3) comprises at least a negative meniscus lens (L33) and a positive lens (L32) sequentially from a side closest to images.

第3透镜组（G3），从最靠 像侧起依次至少具有负的弯月形的透镜（L33）、和正透镜（L32）。

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This action lets you expand the lens of the mind, therefore you are able to see more positive aspects of your current reality.

这个动作可以扩展你的视角，然后你就能看到现实的更多积极面。

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We present a novel confocal laser method (CLM) for precise testing of the dioptric power of both positive and negative intraocular lens (IOL) implants.

提出了一种新的共焦激光方法，可以精确测量正度数与负度数人工晶状体植入物的屈光度。

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An alternative approach is to appeal to the classical Greek philosophy that views kindness through the lens of reason, emphasizing the positive effects acts of kindness have not just on the receiver of kindness but to the giver of kindness as well, not for the salvation of the soul in the afterlife, but in this life.

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While retaining the same smooth AF motor (SAM) as its predecessor, newly-designed rear lens elements suppresses flare and ghost, while mechanical elements have been upgraded for more positive, comfortable operation.

ENGADGET: Sony NEX-3N and Alpha A58 unveiled, heading to Europe this spring