objective lens

基本解釋

The clear aperture of a telescope is the diameter of the objective lens or primary mirror specified in either inches or millimeters (mm).
望遠鏡的孔徑顯然就是物鏡或者主反射鏡的直徑，一般用英寸或者毫米(mm)來表示。
So this is very, very low-cost to buy, and actually, the objective lens in the microscope, the very powerful lens we use to image the atoms, is also from a CD player.
購買的成本是非常，非常低的，而實際上，顯微鏡上的物鏡，我們用來觀看原子圖像的非常強大的鏡頭，也都從CD播放機拆下來的。
If the objective lens is closer to the compact disk than the focal length of the object lens, then the cylindrical lens creates an elliptical image on the photodetector array.
如果物鏡與光盤之間的距離短于物鏡的焦距，柱面透鏡就會使在光電探測器陣列上的成像變成橢圓影像。
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This perspective has allowed me to view our own system through a more objective lens, and what I see is a country that increasingly drives away its own businesses and paralyzes its most innovative companies.
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