Sensor having a plurality of active areas
First Claim
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1. An emitter and receiver system for sensing a distance between the emitter and a target, the system comprising:
- the emitter comprising at least a first column of light emitting sources and a second column of light emitting sources, each source being adapted for emitting light; and
the receiver including a sensor having at least a first active area and a second active area and a resistive layer disposed on each of the at least two active areas for providing a pair of current signals corresponding to a position of light striking the active areas, and a singular lens arranged relative to the receiver for focusing light that is reflected off the target from the first column of light emitting sources onto the first active area, and for focusing light reflected off the target from the second column of light emitting sources onto the second active area.
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Abstract
A sensor including at least two active areas for receiving light energy and a resistive layer disposed on each of the at least two active areas for providing a pair of current signals corresponding to a position of light energy of a predetermined wavelength striking the active area. The two or more active areas are electrically isolated from each other and operate independent of each other. Preferably, the two or more active areas are electrically isolated with silicon dioxide.
12 Citations
10 Claims
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1. An emitter and receiver system for sensing a distance between the emitter and a target, the system comprising:
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the emitter comprising at least a first column of light emitting sources and a second column of light emitting sources, each source being adapted for emitting light; and
the receiver including a sensor having at least a first active area and a second active area and a resistive layer disposed on each of the at least two active areas for providing a pair of current signals corresponding to a position of light striking the active areas, and a singular lens arranged relative to the receiver for focusing light that is reflected off the target from the first column of light emitting sources onto the first active area, and for focusing light reflected off the target from the second column of light emitting sources onto the second active area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification