n.消色差(无色；非彩色)

The SNR, the antenna condition and the Bragg condition as well as achromatism in optical design are discussed. 讨论了在光学设计中的信噪比要求，天线条件，色差兼容和布喇格条件。

From the characteristic of harmonic relief patterns,the athermalization and achromatism of harmonic diffractive element have been studied in the paper. 从谐衍射元件的理论出发,讨论了谐衍射透镜在消色差和消热差时的特性。

The influence of input beam size on the maximum intensity in the focus of singlet lens and achromat was compared. 比较了消色差透镜及单透镜中脉冲初始光腰尺寸对聚焦的影响.

Ms.Feng selects and purchases when the floor pays great attention the achromatism and the superficial texture consistency excessively, this is an erroneous zone similarly. 冯女士选购地板时过分注重无色差和表面纹理的一致，这同样是一个误区。

The initial configuration of this system as well as the surface parameters of BOE are established according to theory of achromatism, and further more, the structure is optimized. 根据消色差原理确定系统的初始结构以及二元面的面形参数，从提高像质的角度对其进行优化。