Abstract: An eye examining instrument comprises a projection device and a concave screen. The eye examining instrument furthermore comprises a convex reflector, wherein an image can be projected by the projection device onto the convex reflector and reflected by the convex reflector onto the concave screen.

Abstract: A system for arm therapy comprises a first drive (M2) that can be fixedly connected to an element (10) determining the position of a user (19) and rotationally driving, about a first axis (A2), a part (21, 22, 23, 24, 25, M1, 26) of the arm therapy system which can be connected to an upper arm module (26, M3, M4). The driven part of the arm therapy system comprises a second drive (M1) adapted to rotationally drive said upper arm module (26, M3, M4) about a second axis (A1), wherein said second axis (A1) is oriented orthogonal to the first axis (A2). The system can provide a statically determined exoskeleton with correct anatomical axes and misaligned technical axes.

Abstract: An eye examining instrument comprises a projection device and a concave screen. The eye examining instrument furthermore comprises a convex reflector, wherein an image can be projected by the projection device onto the convex reflector and reflected by the convex reflector onto the concave screen.

Abstract: A system for arm therapy comprises a first drive (M2) that can be fixedly connected to an element (10) determining the position of a user (19) and rotationally driving, about a first axis (A2), a part (21, 22, 23, 24, 25, M1, 26) of the arm therapy system which can be connected to an upper arm module (26, M3, M4). The driven part of the arm therapy system comprises a second drive (M1) adapted to rotationally drive said upper arm module (26, M3, M4) about a second axis (A1), wherein said second axis (A1) is oriented orthogonal to the first axis (A2). The system can provide a statically determined exoskeleton with correct anatomical axes and misaligned technical axes.

Abstract: A system for arm therapy of a user comprises a device for determining the position of the user, a first drive, an upper arm rotation module, an upper arm cuff, at least one hinge movably connecting the upper arm cuff and the first drive, a second drive, and a rotation drive provided on the upper arm rotation module itself. The upper arm cuff is connected to the arm of the user and has a substantially hollow-cylindrical shape when it is closed. The first drive and the second drive are adapted to place the upper arm rotation module in a defined spatial position, and the rotation drive is adapted to turn the upper arm cuff about its main axis relative to the outer part of the upper arm rotation module.