带状白光源再现彩虹全息象的象差模型

给出了带状白光源再现彩虹全息象的象差模型。带源上每点的“有效光谱范围”引起象点的相同的横向位移（或垂直于狭缝长方向的位移）；带源上各点的、有效中心波长”引起象点的纵向色差（或沿着眼的视线方向的轴向色散，利用所给公式算出了相应的允许象距，此象差模型有助于揭示彩虹全息消色差的物理本质，对于光路设计中参数的选择有实际意义。

A Model of Aberrations for Rainbow Holographic Images Reconstructed by a Strip White Light Source

: A model of aberrations for rainbow holographic images reconstructed by a white light strip source is given . The range of effective spectrum of each element of the strip source gives rise to the same vertical shift of the image point. The etfective centre wavelength of each element gives rise to axial chromatic dispersions of the image point. The formulae given the corresponding permitted image distance can be calculated. The model is helpful in disclosing the physical nature of achromaticity in rainbow holography, and has its practical significance in the selection of parameters in light-path design.