focusing optics 中文意思是什麼
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3. introduced the principle of phase - match and the optics characters of ktp 、 lbo and other nonliner crystrals, demonstrate the optimal focusing conditions. based on a detailed analysis, ktp and lbo are selected as shg and thg cystal, respectively
3 .簡單介紹相位匹配原理和非線性晶體的選擇介紹了一些紫外晶體的光學特性，並闡述了光束的最佳聚焦條件，經過分析和綜合評價，選擇了ktp和lbo分別作為倍頻晶體及和頻晶體。 -
The condition under which higher - order dispersive effects can be neglected is also discussed with numerical examples. 6. based on the fourier optics, the focusing of ultrashort pulses by a silica lens in both cases of constant beam waist and constant diffraction length is studied considering dispersion of first, second and higher order, respectively
6 ，使用傅立葉積分變換法，在考慮透鏡色差和高階色散效應的較為一般情況下，分別研究了等束寬超短脈沖高斯光束和等衍射長度超短脈沖高斯光束通過硅玻璃透鏡的聚焦特性。 -
We designed, simulated and experimented multi - beam lens antenna based on spot - focusing lens antenna ’ s designing, computer simulation, experiment and analysis. in this paper, the author adopted different methods to discuss resolution including geometry optics, gaussian beam and vector diffraction integration
然後在對單波束點聚焦透鏡天線進行設計、模擬和試驗的基礎上，進行準確的分析，以作為多波束天線設計的理論基礎。 -
Self - focusing is one of the fundamental problems in nonlinear optics. it has always been a hot topic since the naissance of nonlinear optics
自聚焦是非線性光學中的一個基本物理問題，自非線性光學誕生以來它一直是一個熱門課題。 -
In chapter 2, we discuss the optics self - focusing in beam propagation. the early research was based on the scalar approximation and paraxial approximation
早期的自聚焦研究是在考慮了傍軸近似和標量場近似的前提下得到的。 -
According to the optics system of oblique camera, make certain the scheme of auto - focusing system, and analyze its principle in detail. this paper presents a new method in order to compensate out of focus of oblique photographic distance, the principle is very simple and it is steady and reliable for structure design
根據斜視相機光學系統的特點，確定了自動調焦系統方案，對其工作原理進行了詳細的分析與論述，並通過對相機斜距離焦的分析，提出了一種新的斜距離焦補償方法，其原理簡單，結構上實現起來穩定可靠，能夠完全實時補償某一典型高度上的斜距離焦。
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