In this paper, we bring forth a new optimal design method of Fresnel diffractive lens using in light beam collimation of laser diode.
针对国内外现有半导体激光器准直器件的缺点，提出了一种用于半导体激光器准直的相位型二元菲涅耳衍射透镜的优化方法。
This invention provides an infrared diffractive lens capable of focusing infrared rays within a wide range of wavelength band effectively.
本发明提供一种可高效地对宽波长范围的红外线进行聚光的红外线衍射透镜。
By this way we can design high diffraction efficiency, as well as lager numerical aperture diffractive lens under current machine fabrication condition.
该方法在现有衍射透镜加工设备分辨率条件下，可提高衍射透镜的衍射效率，增大衍射透镜的数值孔径。
Using the infrared diffractive lens with such a configuration makes it possible to focus infrared rays within a wide range of wavelength band effectively.
通过使用该结构的红外线衍射透镜，可以高效地对宽范围的波段的红外线进行聚光。
Four kinds of laser source are used to measure the diffractive efficiency of Fresnel lens.
使用四种不同光源，对菲涅耳透镜的衍射效率进行测试。
Diffractive efficiency of Fresnel lens is important factor to evaluate the quality of Fresnel lens.
菲涅耳透镜的衍射效率是评价菲涅耳透镜质量的一个重要指标。
When the diffractive optical lens is illuminated by white light, its focal length not only relates to material dispersion and wavelength dispersion, but also to aperture factor.
在白光照射下，衍射光学透镜的焦距不仅同材料色散和波长色散有关，而且还同孔径因子有关。
Taking 4 step and 8 step and 16 step Fresnel lens for example, the effect of alignment error on diffractive efficiency is analyzed systematically and simulated by computer.
并以4台阶、8台阶、16台阶菲涅耳透镜为例，系统分析对准误差对衍射效率的影响并进行计算机模拟研究。
According to Kirchhoff's scalar diffraction theory, with the ray tracing method, a continuous relief mask for diffractive focus lens has been designed.
基于基尔霍夫标量衍射理论，采用光线追迹法设计了连续型平面衍射聚光透镜掩模。
The 16-step Fresnel lens had been fabricated by thin film deposition and ion beam etching and it has been used in refractive-diffractive CCD camera.
使用薄膜沉积法和离子束刻蚀法制作16阶菲涅耳透镜，应用于折衍混合CCD相机。
Focal shifts in diffractive Fresnel lens are measured. The result is closer to the theory given by generalized eikonal.
实验测定了波带板的焦移，接近与广义程函数理论。
Focal shifts in diffractive Fresnel lens are measured. The result is closer to the theory given by generalized eikonal.
实验测定了波带板的焦移，接近与广义程函数理论。
应用推荐