초록 ▼

The invention provides a combined spectral radiometer and infrared viewer for use in the infrared and particularly the far infrared portion of the electromagnetic spectrum. A standard thermal viewer is modified by the addition of a temperature reference, a variable filter, a recording minicomputer a

The invention provides a combined spectral radiometer and infrared viewer for use in the infrared and particularly the far infrared portion of the electromagnetic spectrum. A standard thermal viewer is modified by the addition of a temperature reference, a variable filter, a recording minicomputer and circuitry to intercouple these elements and synchronize their functions without impairing the use of the view in its normal make of operation.

대표청구항 ▼

A combined infrared viewer means for producing a visible image of one or more distant objects using only the infrared radiation therefrom and spectral radiometer comprising: an objective lens means to project a primary image of said distant infrared emitting objects on a primary image plane; at leas

A combined infrared viewer means for producing a visible image of one or more distant objects using only the infrared radiation therefrom and spectral radiometer comprising: an objective lens means to project a primary image of said distant infrared emitting objects on a primary image plane; at least one electrically controlled reference temperature strip mounted in said primary focal plane adjacent said primary image; a second lens means interconnected with said first lens means to refocus said primary image and the emission from said strip on a secondary image plane as a combined secondary image; an infrared image detector in said image plane centered on and equally responsive to all portions of said secondary image; and a variable center-frequency narrow-bandwidth optical filter of infrared frequencies located between said second lens means and said image detector.