Patent Number: 
Section: claims

1. A depth diaphragm for an x-ray device, comprising a plurality of adjustable diaphragm blades for fading in an examination area, wherein the diaphragm blades are shaped as disks and include at least two pairs of diaphragm blades individually moveable in a common direction, the pairs arranged in two layers, the layers arranged one upon the other, so that the examination area is faded in asymmetrically. 2. The depth diaphragm according to claim 1, wherein each diaphragm blade is individually moveable by a drive. 3. The depth diaphragm according to claim 1, wherein the diaphragm blades are made of lead and are embedded in or coated with a plastic material. 4. The depth diaphragm according to claim 1, wherein the depth diaphragm is operatively connected to a diaphragm operating device, the diaphragm operating device arranged and constructed such tat each diaphragm blade is actuated individually. 5. An X-ray device, comprising a depth diaphragm, the depth diaphragm comprising a plurality of adjustable diaphragm blades for fading in an examination area, wherein the diaphragm blades are shaped as disks and include at least two pairs of diaphragm blades individually moveable in a common direction, the pairs arranged in two layers, the layers arranged one upon the other, so that the examination area is faded in asymmetrically.