Compact VCSEL sensor with multiple sensing capabilities

Details Compact VCSEL sensor with multiple sensing capabilities Compact VCSEL sensor with multiple sensing capabilities

2006-10-31

2006-10-31

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

C250S559150, C250S216000, C250S559360, C250S559320, C356S028000, C359S619000, C359S623000, C359S626000

Reexamination Certificate

active

07129508

ABSTRACT:
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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