| 摘要 |
The invention includes also a sensor tat includes at least one laser, at least one detector, and at least one lens system that includes a sensor surface having three individual surfaces that are virtually the same, and an object surface having two individual surfaces that are virtually the same. The invention also includes a sensor having at least one source that produces radiation, at least one detector; and a lens system that collimates and focuses the radiation onto at least two different regions of a surface of a reflective object, wherein the reflective object reflects the incident radiation, and the lens system collimates and focuses the reflected radiation onto the detector, thereby sensing the reflective object.
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