Patent Number: 062194003
Section: claims

1. An X-ray optical system, comprising: an X-ray illumination system having at least two mirrors, wherein at least one mirror is a collecting mirror having a concave surface;  a driving system for moving said at least two mirrors;  a detecting system having at least one sensor, for detecting at least one of tilt and incidence position of X-rays in said X-ray illumination system, wherein said at least one sensor is provided integrally with at least one of said at least two mirrors; and  a control system for controlling movements of said at least two mirrors by said driving system on the basis of detection by said detecting system.  an X-ray illumination system having at least two mirrors, wherein the object can be exposed with X-rays projected through action of said at least two mirrors, wherein at least one mirror is a collecting mirror with a concave surface;  a driving system for moving said at least two mirrors;  a detecting system having at least one sensor, for detecting at least one of tilt and incidence position of X-rays in said X-ray illumination system, wherein said at least one sensor is provided integrally with at least one of said at least two mirrors; and  a control system for controlling movements of said at least two mirrors by said driving system on the basis of detection by said detecting system. 2. An X-ray optical system according to claim 1, wherein said driving system is arranged to change the position and attitude of said at least two mirrors. 3. An X-ray optical system according to claim 1, wherein said detecting system comprises first sensors provided with respect to said at least two mirrors, respectively, for detecting tilt of an optical axis of an X-ray beam, and second sensors provided with respect to said at least two mirrors, respectively, for detecting one of incidence position of the X-ray beam and an angle thereof about the optical axis. 4. An X-ray optical system according to claim 1, wherein said detecting system comprises a first sensor provided in relation to one of said at least two mirrors, for detecting tilt of an optical axis of an X-ray beam, and a second sensor provided in relation to the one mirror, for detecting one of incidence position of the X-ray beam and an angle thereof about the optical axis, and wherein said control system controls movement of the one mirror by said driving means on the basis of detection by said detecting system and also controls movement of the other or another mirror of said at least two mirrors on the basis of the detection by said detecting means and a drive amount for the one mirror. 5. An X-ray optical system according to claim 1, wherein said X-ray illumination system is arranged to collect the X-rays in one direction with respect to a sectional plane of the X-ray beam, and to expand the X-rays in another direction with respect to the sectional plane. 6. An X-ray optical system according to claim 1, wherein said X-ray illumination system is arranged to perform scanning illumination with X-rays. 7. An X-ray exposure apparatus for exposing an object to X-rays, comprising: 8. An apparatus according to claim 7, wherein said X-ray illumination system is arranged to collect the X-rays in one direction with respect to a sectional plane of the X-ray beam, and to expand the X-rays in another direction with respect to the sectional plane. 9. An apparatus according to claim 7, wherein said X-ray illumination system is arranged to perform exposure of the object with X-rays.