field lens

基本解释

The effect of field lens in infrared optical systems is discussed.
討論了紅外光學系統中場鏡的作用。
Use magnetic field lens again, two kinds of electron lens elaborate respectively below form and principle.
又用磁場透鏡，下麪分別闡述兩種電子透鏡的搆成和原理。
The particular functions and the impact to the systemic performance of the critical elements such as lighting system, grating, field lens and electronic ocular are analyzed.
對系統的關鍵性部件如照明系統、光柵、物鏡和電子目鏡的選用以及它們對系統性能的影響進行了分析。

"We wanted to place a bet, and have a lens into this field, " says Brad Crawford , Amgen's director of licensing.
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The wide-angle lens give allows expanded field of view needed for group shots, ensuring everyone is in frame even in a close-up shot whilst the powerful zoom makes it possible to capture detailed photos even when the subjects are of a distance.
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