| 摘要 |
The present invention creates a virtual sensor plane by arraying two one-dimensional light sensors at right angles to one another wherein the shaft of a joystick extends perpendicularly through the virtual sensor plane. With this configuration, the sensor plane can detect traditional joystick rotation around a point along its axis as well as a herein-disclosed true rotation of the joystick around the joystick axis itself. Between the light sources and lenses which enable light detection and the optical, rather than mechanical or electromechanical, nature of the light sensors, wear surfaces in the joystick are minimized or eliminated everywhere except, where applicable, in the universal joint at the base of joystick configurations which include such a universal joint.
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