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US 6,744,059 B2Granted
Optical path structure for open path emissions sensing with spinning mirror
AssigneeSPX Corporation
InventorsJohn DiDomenico, Robert A. Gentala, Craig S. Rendahl
Life of this patent
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Abstract
An optical system for a gas component analysis includes an emitter for emitting first light beam having a first spectrum, a second emitter for emitting a second light beam at a second spectrum, a first receiver for receiving the first light beam, and a second receiver for receiving the second light beam.
Claims22
An optical system for a gas component analysis comprising:
- a first emitter located on a first side of a vehicle path for emitting a first light beam having a first spectrum across the vehicle path;
- a first receiver for receiving the first light beam;
- a plurality of filter elements;
- a spinning mirror face that reflects the beam so that the beam reaches each of the filter elements in sequence;
- and
- a monolithic ellipsoidal mirror that receives the beam from the spinning mirror and directs the beam through the filters.
3 more elements
Dependencies are inferred from the claim text.