Patent Number: 
Section: claims

1. A ray beam guiding apparatus, comprising:a ray beam guiding box which has substantially fan-shaped top and bottom surfaces, defines an inner space, and has open wide and narrow ends;an engaging member joined to the narrow end of the ray beam guiding box;a first collimator mounted to the ray beam guiding box adjacent to the narrow end and for adjusting a profile of the ray beam in a first direction and a second direction perpendicular to the first direction;a second collimator having a calibration slit or grill and mounted to the ray beam guiding box adjacent to the wide end;an adjusting member connecting the engaging member and a ray generator for emitting rays and for adjusting a distance between the ray generator and the ray beam guiding box;wherein the ray beam guiding box comprises:a lower box body, including:a substantially fan-shaped bottom plate,first and second side plates extending upwardly from two sides of the bottom plate and perpendicular to the bottom plate, andan extension plate portion extending from the wide end of the ray beam guiding box and lying in the same plane as that of the bottom plate, in which a detector support with a detector array is disposed on the extension plate portion; andan upper cover covering a top of the lower box body. 2. The ray beam guiding apparatus according to claim 1, wherein a ray shielding layer is disposed inside the ray beam guiding box, and a through aperture is formed at a substantial center of the ray beam guiding box so as to penetrate through the bottom plate and the upper cover. 3. The ray beam guiding apparatus according to claim 2, further comprising:a first boss disposed on the bottom plate adjacent to the narrow end, and for engaging and mounting a first calibration member having a calibration slit;a second boss disposed on the bottom plate adjacent to the wide end, and for engaging and mounting a second calibration member having a calibration slit, in which the through aperture is located between the first and second bosses and the first and second calibration members being cooperated to calibrate the ray beam emitted from the ray generator and passing through the ray beam guiding box; anda third boss disposed on the extension plate portion and for engaging the detector support and adjust a distance between the detector support and a target spot of the ray generator, wherein the detector support has a support body and a detector arm moveable with respect to the support body. 4. The ray beam guiding apparatus according to claim 3, wherein the first collimator comprises:first and second sliding stoppers which are engaged in a first slide groove formed in the ray beam guiding box, and slidable along the first slide groove in the first direction so as to adjust a first distance therebetween; andthird and forth sliding stoppers which are engaged in a second slide groove formed in the ray beam guiding box, and slidable along the second slide groove in the second direction so as to adjust a second distance therebetween. 5. The ray beam guiding apparatus according to claim 4, wherein the first collimator further comprises:a first graduator connected to the first and second sliding stoppers to adjust sliding of the first and second sliding stoppers along the first slide groove; anda second graduator connected to the third and forth sliding stoppers to adjust sliding of the third and forth sliding stoppers along the second slide groove. 6. The ray beam guiding apparatus according to claim 5, further comprising:a first adjusting screw disposed on the adjusting plate to adjust a position of the ray generator with respect to the ray beam guiding box in the first direction; anda second adjusting screw disposed on the adjusting plate to adjust a position of the ray generator with respect to the ray beam guiding box in the second direction. 7. A ray inspection system comprising the ray beam guiding box according to claim 1.