For a real laser, there exists hard-aperture optics more or less.
对实际激光，一方面或多或少存在硬边光阑光学元件影响。
A fast testing method on inspecting defects of large aperture optics was introduced.
本文提出了一种光学零件表面疵病检验方法。
The larger the aperture of a telescope, the more resolution the instrument is capable of, assuming the telescope optics are of high quality.
望远镜的孔径越大，该设备分辨率就越好，前提是该望远镜的光学设计良好。
Synthetic Aperture Ladar (SAL) is a kind of imaging laser radar (Ladar) utilizing synthetic aperture techniques to obtain high resolution images without the installation of large optics.
合成孔径激光雷达（SAL）是一种采用合成孔径技术的高分辨率成像激光雷达，只需要较小的光学孔径就可以实现高分辨率成像。
Based on geometrical optics theory, the re-radiation is analysed by using aperture field method.
根据几何光学理论，利用孔径场法进行了分析。
From the theory of light diffraction and geometrical optics, aperture diffraction near the focal plane of microscope objectives and imaging on the image plane are studied.
从光的衍射理论和几何成象理论出发，分析研究了显微物镜焦平面附近小孔光栏的衍射和象平面位置上的成象。
The system can be set up and adjusted quite easily and used to test large-aperture optical elements without high quality reference optics of the same size.
该系统结构简单，调整方便，并可以用作检验大口径光学元件而勿需同样尺寸的高质量参考光学件。
This formula is not limited by the aperture radius and the distance from the screen and can be used as a theory of near field optics.
推导了圆孔衍射公式，该公式不受孔径大小和到屏距离的限制，可以作为近场光学的理论。
Based on the diffraction optics, this paper analysis the effect of aperture matching on EMR, size of focus point and focus depth of the object in detail.
本文以衍射光学为基础，详尽地分析了光束孔径匹配对光能耦合效率、光斑尺寸、物镜焦深的影响。
The projection optics is designed for a constant field angle and entrance pupil. Thus image always fills entrance aperture and view field of the test optical system.
从光学指标的确定，结构、材料的选取到最终光学性能，阐述了准直投射光学系统的设计。
A general diffraction formula for circular apertures is derived. This formula is not limited by the aperture radius and the distance from the screen and can be used as a theory of near field optics.
推导了圆孔衍射公式，该公式不受孔径大小和到屏距离的限制，可以作为近场光学的理论。
A general diffraction formula for circular apertures is derived. This formula is not limited by the aperture radius and the distance from the screen and can be used as a theory of near field optics.
推导了圆孔衍射公式，该公式不受孔径大小和到屏距离的限制，可以作为近场光学的理论。
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