Patent Number: 
Section: claims

1. An optical device for focusing a synchrotron radiation light source, wherein the optical device has an axially symmetric structure that is symmetric about an axis of the optical device, a contour of the optical device includes a quadratic curve segment, that includes a parabolic segment, and the optical device comprising:a plurality of capillary bodies made of transparent material,wherein the capillary bodies in a center region have a solid structure; andwherein the capillary bodies in a periphery region located outside of the center region have a hollow structure. 2. The optical device of claim 1, wherein an external diameter of a capillary body in the center region is larger than that of a capillary body in the periphery region; orthe external diameters of all the capillary bodies are the same. 3. The optical device of claim 1, wherein a wall thickness of one capillary body is not uniform, and the part of wall which is farther away from the axis of the optical device has a thinner thickness than that of the part of wall which is closer to the axis of the optical device. 4. The optical device of claim 1, wherein the transparent material is glass material. 5. The optical device of claim 4, wherein the glass material includes one or more elements of Li, Be and B. 6. The optical device of claim 5, the capillary body in the periphery region is consisted of a film made of non-transparent material. 7. The optical device of claim 6, wherein the non-transparent material is metal. 8. The optical device of claim 7, wherein the metal includes one or more elements of Wolfram, Gold and Platinum. 9. The optical device of claim 1, wherein the film made of non-transparent material is located on the outer surface of the capillary body. 10. An optical device for focusing a synchrotron radiation light source, comprising:a plurality of capillary bodies made of transparent material; andwherein the capillary bodies in a center region have a solid structure, the capillary bodies in a periphery region located outside of the center region have a hollow structure; andwherein the optical device has a symmetrical structure about an axis of the optical device, a contour of the optical device including a plurality of parabolic segments connected serially, and the opening orientations of plurality of parabolic segments are the same. 11. The optical device of claim 10, wherein the transparent material is glass material; and wherein a shape of a vertical cross-section of the symmetrical structure comprises edges with opposite openings. 12. The optical device of claim 10, wherein a wall thickness of one capillary body is not uniform, and the part of wall which is farther away from the axis of the optical device has a thinner thickness than that of the part of wall which is closer to the axis of the optical device.