Abstract: Femoral component for a knee prosthesis adapted to cooperate with an insert attached to a tibial plateau anchored at the upper end of a tibia. The femoral component is adapted to be anchored at a lower end of a femur, the femoral component including a first lateral condyle, a second lateral condyle, and an intercondylar space disposed between the first and second condyles for receiving a third removably fixed condyle. The third condyle is removable from the intercondyle space while the femoral component remains moveably engaged with the tibial plateau. The third condyle is adapted to provide posterior stabilization of the prosthesis during flexion between the tibia and the femur when the posterior cruciate ligament is no longer able to substantially perform its function.

Abstract: A trembling compensation and control apparatus detects an angular displacement of an optical axis of a focusing optical system and drives and controls an compensation optical system so as to compensate for trembling of a camera. The angular displacement of the optical axis of the focusing optical system is detected by an angular velocity sensor. A low-cut filter is provided that processes and calculates an angular displacement velocity signal output from the angular velocity sensor. The low-cut filter cuts a low frequency component from the angular displacement velocity signal and outputs a valid angular displacement velocity signal. The valid angular displacement velocity signal is converted by an integration portion into an angular displacement signal. A level detector is further disposed for detecting the valid angular displacement velocity signal.

Abstract: A method for removing coating defects from a vehicle body or the like includes the steps of putting a defect information mark on a defect portion of an inspected object's coating, recognizing a position and a removal setting of the defect portion from the defect information mark, and non-contact removal of the defect portion in accordance with the position and the removal setting recognized in the recognizing step. According to the present invention, only the defects are removed, even when they are very small. The non-contact removal step may include spraying a water jet to permit removal of a defect without damaging a base coat. The non-contact removal step is very straightforward. Therefore, the removal position need not be defined in three dimensions. Accordingly, the shape of the vehicle body or the like is not required to be input.