a method for manufacturing a compound refractive lens for focusing x - rays in two dimensions . the method includes the following steps : 1 ) manufacturing a mother lens ; 2 ) manufacturing a daughter lens ; and 3 ) assembling the mother lens and the daughter lens . the assembly of the mother lens and the daughter lens includes : aligning square embedded lens bodies of the daughter lens with square holes of the mother lens , respectively , for allowing the first parabola - shaped holes on the mother lens and the second parabola - shaped holes on the daughter lens to form an orthogonal structure ; and inserting and pressing the square embedded lens bodies into the corresponding square holes , respectively . the method of the invention has advantages of high - precision for manufacturing and calibration of optical axis , and meanwhile the compound refractive lens manufactured based the method has high x - rays focusing efficiency .