DIAPHRAGM FOR AN IMAGING DEVICE

摘要

The invention relates to a diaphragm (100), especially for an imaging device (200), which is used to limit especially high-energy radiation (12) emitted from a radiation source (10) and to orient the radiation along an optical axis x towards the imaging region (14) according to the pin camera principle. The invention is characterised in that the diaphragm (100) comprises a first body (18) which at least partially absorbs the radiation (12) and comprises a first curved outer surface (20), the contour of said surface being at least partially described by a function of the formz(x,y) = f(y)*x + n, and a second body (26) which at least partially absorbs the radiation (12) and comprises a second curved outer surface (28), the contour of said surface being at least partially complementary to the curved outer surface (20) of the first absorbing body (18). According to the invention, the two absorbing bodies (18, 26) are positioned, or can be positioned, in such a way that a gap (32) or a region which only slightly absorbs the radiation is created between the two curved outer surfaces (20, 28).