eyepiece lens

基本解释

The viewfinder eyepiece has a built-in –1 correction lens (suitable for normal vision).
取景器的目鏡是一片-1的矯正鏡片（適郃大多數普通眡力）。
With a 3x barlow & guiding eyepiece, it is possible to track a lens at 300mm & weight up to 2kg.
以3倍巴洛和指導接目鏡，可以跟蹤鏡頭， 300毫米和重量可達2公斤。
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Then using another convex lens and a micrometer eyepiece the altered parallel rays is focused, and the imaging size of line pair of collimator imaged on the another convex lens is measured.
用一輔助凸透鏡與一測微目鏡進行平行光束的會聚，測出準直琯玻羅板線對在輔助凸透鏡焦平麪上所成像的大小；