Patent Number: 
Section: claims

1. An X-ray lens assembly, comprising:a tube member including an inlet opening for X-rays and an outlet opening for X-rays;a capillary X-ray lens;axially spaced mounting structures mounting the X-ray lens inside the tube member; anda chamber defined between the tube member, the X-ray lens, and the mounting structures filled with a stabilizing agent that holds the X-ray lens in the tube member. 2. The X-ray lens assembly of claim 1, wherein the stabilizing agent includes a glue. 3. The X-ray lens assembly of claim 1, wherein the tube member further includes at least one further opening arranged between the inlet opening and the outlet opening, wherein the at least one further opening is in communication with the chamber. 4. The X-ray lens assembly of claim 3, wherein the stabilizing agent has been filled into the chamber through the at least one further opening. 5. The X-ray lens of claim 1, wherein the one or more mounting structures comprise at least one elastic member. 6. The X-ray lens assembly of claim 5, wherein the at least one elastic member comprises an elastic ring. 7. The X-ray lens assembly of claim 1, wherein the mounting structures allow for an axial displacement of the X-ray lens inside the tube member. 8. An X-ray device, comprisingan X-ray source; andan X-ray lens assembly including a tube member having an inlet opening for X-rays and an outlet opening for X-rays, a capillary X-ray lens, axially spaced mounting structures mounting the X-ray lens inside the tube member, and a chamber defined between the tube member, the X-ray lens, and the mounting structures filled with a stabilizing agent that holds the X-ray lens in the tube member. 9. A method of manufacturing an X-ray lens assembly, comprising:providing a tube member having an inlet opening for X-rays and an outlet opening for X-rays;providing a capillary X-ray lens; andmounting the X-ray lens inside the tube member using axially spaced mounting structures; andfilling a chamber defined between the tube member, the X-ray lens, and the mounting structures with a stabilizing agent that holds the X-ray lens in the tube member.