Focal depth of laser beam is advanced by diffraction optical element in this paper.
本文使用衍射光学元件来提高激光束的焦深。
Several examples shown in this Paper indicate that it is a valuable design method of the diffraction optical element.
文中给出了几个实例，充分表明这是有实用价值的一种衍射光学元件设计方法。
The relief structure of diffraction optical element can be written precisely but very slowly with the raster scan mode bye-beam.
用电子束逐行扫描方法刻蚀衍射光学元件的浮雕结构精度高而速度低。
The surfaces of diffraction optical element (DOE) are often deep and discontinuous, which lead to some difficulties for measurement of the 3-d surface topography of DOE.
衍射光学元件(DOE)表面形貌的测量需要解决因表面结构深度较大和表面不连续给测量带来的困难。
A kind of diffraction element modulating phase information by LC space light modulator to get a zoom Fresnel lens, as well as the using of said element to optical imaging system, is introduced.
本文介绍一种以液晶空间光调制器作为调制位相信息的衍射元件，获得可变焦长的菲涅耳透镜，以及该元件在光学成像系统中的应用。
It is proved in a complicated optical system that the diffraction integration in terms of ray matrix element is the right solution 'for paraxial equation.
对复杂光学系统证明了光线矩阵元表达的衍射积分是旁轴波动方程的准确解。
In this paper, the flat field polychromator (SPD - I) using an aberration - corrected flat fie1d holographic concave diffraction grating as both spectroscopic and oPtical imaging element is re-POrted.
报道一种利用象差校正平场全息凹面衍射光栅作为分光和成象元件的平场多色仪，该多色仪具有谱面平直、使用波段宽、集光本领强、体积小等优点。
A binary Fresnel lens with 8 phase steps can be manufactured with micro-optical element fabricating technology and three times of alignment according to Fresnel diffraction theory.
根据菲涅耳衍射理论，采用微光学元件制作技术，通过三次套刻制作出八位相台阶的二元离轴菲涅耳透镜。
The cantilever itself can be used as a point diffraction interferometer element, and a new optical interference probe based on this is set up to measure the deflection or amplitude of the cantilever.
发现了由于V形微探针的结构特点而引起的点衍射干涉现象，并据此构成了一种基于点衍射干涉的微探针振幅测量的干涉光探针，这种干涉光探针在国内外至今未见相同的报导。
The cantilever itself can be used as a point diffraction interferometer element, and a new optical interference probe based on this is set up to measure the deflection or amplitude of the cantilever.
发现了由于V形微探针的结构特点而引起的点衍射干涉现象，并据此构成了一种基于点衍射干涉的微探针振幅测量的干涉光探针，这种干涉光探针在国内外至今未见相同的报导。
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