Patent Number: 
Section: claims

1. A shutter system operable between an open position, and a closed position operable to avoid unintended exposure of a surface to radiant flux, wherein said shutter system comprises at least one pair of shields, and an axis for each shield, wherein a first axis is connected to an end part of a first shield, and coincides with a turning axis of the first shield, wherein a second axis, in the shape of an angled arm, is connected to an end part of a second shield and a turning axis of said second shield is parallel to the turning axis of said first shield and is arranged at a distance from the second shield. 2. A shutter system according to claim 1, wherein x>=y, where x denotes the perpendicular distance between the turning axis of said second shield and an edge of said second shield closest to said first shield when said shutter system is in the closed position, and where y denotes the perpendicular distance between the turning axis of said second shield and the connecting point where said first axis is connected to said end part of said first shield. 3. A shutter system according to claim 2, wherein, when said shutter system is in the closed position, said first shield and said second shield are partly overlapping each other, and are not in alignment with each other. 4. A shutter system according to claim 2, wherein, when said shutter system is in the closed position, said first shield and said second shield are partly overlapping each other, and are bent in the overlapping area, and are in alignment with each other except in said overlapping area. 5. A shutter system according to claim 1, wherein, when said shutter system is in the closed position, said first shield and said second shield are partly overlapping each other, and are not in alignment with each other. 6. A shutter system according to claim 1, wherein, when said shutter system is in the closed position, said first shield and said second shield are partly overlapping each other, and are bent in the overlapping area, and are in alignment with each other except in said overlapping area. 7. A shutter system according to claim 1, wherein, when said shutter system is in the open position, said first shield and said second shield are placed onto each other. 8. A shutter system according to claim 1, wherein said second axis is connected to the middle of a short side of said second shield, and the turning axis of said second shield is positioned approximately above the center of a short side of said first shield when said shutter system is in the closed position. 9. A shutter system according to claim 1, wherein, when said first and second axes have been turned 90° in relation to the positions of said first and second axes when said shutter system is in the closed position, said first shield and said second shield are parallel to each other. 10. A shutter system according to claim 1, wherein said shutter system also comprises a third axis and a fourth axis, wherein said third and fourth axes are connected to said first and second shields in the same way as said first and second axes but mirror symmetrical in relation to a center axis of said first and second shields, which center axis is perpendicular to the turning axes of said first to fourth axis. 11. A shutter system according to claim 10, wherein said shutter system also comprises support stands arranged at said first and second shields in connection with said third and fourth axes. 12. A shutter system according to claim 1, wherein said shutter system also comprises a second pair of shields, and an axis for each shield, wherein said second pair of shields and said axes are arranged in the same way as said first pair of shields and said first and second axes, but arranged in such a way that said axes are mirror symmetrical to said first and second axes in relation to a center axis parallel to the turning axes of said axes and arranged in the middle of said shutter system. 13. A shutter system according to claim 12, wherein, when said shutter system is to be opened, said axes and said first pair of shields are turned counter clockwise, and said axes and said second pair of shields are turned clockwise. 14. A shutter system according to claim 13, wherein, when said shutter system is in the closed position, said second shield and one of said second pair of shields are partly overlapping each other, and are not in alignment with each other. 15. A shutter system according to claim 13, wherein, when said shutter system is in the closed position, said second shield and one of said second pair of shields are partly overlapping each other, and are bent in the overlapping area, and are in alignment with each other except in said overlapping area. 16. A shutter system according to claim 12, wherein, when said shutter system is in the closed position, said second shield and one of said second pair of shields are partly overlapping each other, and are not in alignment with each other. 17. A shutter system according to claim 12, wherein, when said shutter system is in the closed position, said second shield and one of said second pair of shields shield are partly overlapping each other, and are bent in the overlapping area, and are in alignment with each other except in said overlapping area.