aperture lens

Compared with other UV or DUV lithography lenses, this lens can meet the needs of higher numerical aperture and full use of its field.

该物镜与国内外现有的紫外或深紫外光刻物镜相比，既能满足大数值孔径的需要，又能充分利用物镜的视场。

He stopped down the lens to a small aperture.

他把镜头光圈孔径缩小.

The theoretical analysis of the effect is presented with the Fresnel reflection on the surface of thick lens and the definite aperture introduced in the analysis to make the results agreement with the actual case.

为了使计算结果更接近于实际情况，在理论分析中引入了厚透镜表面的菲涅耳（Fresnel）反射及有限孔径的影响。

The camera has a 32mm lens with a maximum aperture of f/ 4.5 and a fixed shutter speed of 1/ 100sec.

这架相机有一个32毫米的镜头，最大孔径为f/4.5，固定快门速度为1/100秒。

The camera has a 32mm lens with a maximum aperture of f/4.5 and a fixed shutter speed of 1/100sec.

这架相机有一个32毫米的镜头，最大孔径为f/4.5，固定快门速度为1/100秒。