The serious recording limitations due to the finite size of CCD and the space-bandwith products of an off-axis system and a lensless Fourier transform system are discussed.

• 指出无透镜傅里叶变换全息光路能充分利用CCD有限的靶面尺寸,从而降低对CCD空间分辨率的要求,因此适用于对微小物体进行测量研究。