• 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直器件缺点,提出种用于半导体激光器准直的相位型二元涅耳衍射透镜优化方法

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  • This invention provides an infrared diffractive lens capable of focusing infrared rays within a wide range of wavelength band effectively.

    发明提供一种可高效地波长范围红外线进行聚光的红外线衍射透镜。

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  • By this way we can design high diffraction efficiency, as well as lager numerical aperture diffractive lens under current machine fabrication condition.

    方法现有衍射透镜加工设备分辨率条件下提高衍射透镜的衍射效率,增大衍射透镜的数值孔径

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  • Using the infrared diffractive lens with such a configuration makes it possible to focus infrared rays within a wide range of wavelength band effectively.

    通过使用结构红外线衍射透镜可以高效地范围波段的红外线进行聚光。

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  • Four kinds of laser source are used to measure the diffractive efficiency of Fresnel lens.

    使用不同光源,对菲涅耳透镜衍射效率进行测试

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  • Diffractive efficiency of Fresnel lens is important factor to evaluate the quality of Fresnel lens.

    透镜衍射效率评价菲涅耳透镜质量的一个重要指标。

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  • 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.

    白光照射下,衍射光学透镜焦距不仅材料色散波长色散有关,而且同孔径因子有关。

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  • 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台阶菲涅耳透镜系统分析对准误差衍射效率影响进行计算机模拟研究

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  • 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设计了连续平面衍射聚光透镜掩模

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  • 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.

    使用薄膜沉积法离子束刻蚀法制作16阶菲涅耳透镜应用折衍混合CCD相机。

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  • 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接近广义程函数理论

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  • 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接近广义程函数理论

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