id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
iajs-2768	b. hasan, alaa	Evaluating the Optical Properties of the Schmidt Cassegrain Spider Obscuration Telescope Using Zemax Program	2022	10	.pdf	application/pdf	4825	222	60	53 (4)2022 71 Figure 3.PSF cross section of image surface for variable wavelength in SCT Changing the angle of the telescope's field of view affects the image quality because the off-axis object has non-axial aberration that changes the distribution of the rays' propagation in the image plane. Figure 4.PSF cross section of image surface for variable field of view angle in SCT The PSF gives an overall idea of the image quality if it is three-dimensional.	cache/iajs-2768.pdf	txt/iajs-2768.txt