초록 ▼

An optical digitizer or tablet employing a linear image sensor behind a microlouver strip and extending along a coordinate axis of a coordinate axes plane. In one embodiment, a non-directional light source floods the plane, and a cursor is provided with a reflector that reflects incident light. In a

An optical digitizer or tablet employing a linear image sensor behind a microlouver strip and extending along a coordinate axis of a coordinate axes plane. In one embodiment, a non-directional light source floods the plane, and a cursor is provided with a reflector that reflects incident light. In another embodiment, the light source is on the reflector, and the sensor-microlouver combination is located along each tablet edge.

대표청구항 ▼

An optical system for defining the position of an object in a coordinate system comprising: a light source positioned to provide light in a plane defined by two coordinate axes of said system upon said object, said object being capable of reflecting said light; at least one array of light sensors po

An optical system for defining the position of an object in a coordinate system comprising: a light source positioned to provide light in a plane defined by two coordinate axes of said system upon said object, said object being capable of reflecting said light; at least one array of light sensors positioned adjacent each said two coordinate axes so as to receive said reflected light and capable of generating an electrical signal in response to received light; means for directionally transmitting said reflected light such that only light directed along substantially one angle to the sensor array substantially reaches one light sensor or immediately adjacent light sensors at any particular position of the object; and means for determining or establishing said object\s position from said generated electrical signal.