Singh K, Chopra K N
Appl Opt. 1969 Aug 1;8(8):1695-702. doi: 10.1364/AO.8.001695.
Imagery of a general periodic triangular wave object formed by an aberration-free narrow rectangular aperture (slit) with tapered illumination, has been investigated. The system is assumed to be operating in incoherent light. Results have been presented for the far field intensity distribution in the diffraction images and the general triangular wave response of the system. An object function which gives a wave response nearly similar to that of sine wave has been pointed out.
对由具有锥形照明的无像差窄矩形孔径（狭缝）形成的一般周期性三角波物体的成像进行了研究。假设该系统在非相干光下工作。给出了衍射图像中远场强度分布和系统的一般三角波响应的结果。指出了一个给出与正弦波几乎相似的波响应的物函数。
