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US 8,558,890 B2Granted
Aerial reconnaissance camera system with atmospheric dispersion correction
AssigneeGoodrich Corporation
InventorsFred Mrozek, Russell A. Bennett
Life of this patent
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AssigneeGoodrich Corporation
InventorsFred Mrozek, Russell A. Bennett
Estimating the term…
An aerial reconnaissance camera system is disclosed which compensates for atmospheric dispersion. The dispersion is principally a function of the observing altitude and slant range and occurs in the camera depression direction only. The effective spectral dispersion of the atmosphere is shown to be about 15 microradians over the visible/near infrared spectrum (500 to 900 nanometers) at typical long range oblique photography (LOROP) imaging ranges. Consequently, dispersion is compensated by means of a fixed optical wedge incorporated into the optical path of the reconnaissance camera, e.g., in a fixed reconnaissance window. The wedge has dispersive qualities opposite to the effective net dispersion of the atmosphere for an expected reconnaissance mission using the camera.
An aerial reconnaissance camera system comprising an imaging detector and an optical system for installation in an airborne reconnaissance vehicle, wherein an optical path exists between a scene to be imaged on the Earth and the imaging detector, the aerial reconnaissance camera system further comprising:
An aerial reconnaissance camera system for installation in an airborne reconnaissance vehicle, wherein an optical path exists from a scene to be imaged on the Earth and the camera, the camera system comprising:
The aerial reconnaissance camera system of 10, wherein the imaging detector comprises an electro-optical image detector array.
A method of compensating for atmospheric dispersion in an aerial reconnaissance camera system for installation in an airborne reconnaissance vehicle, the camera system having an imaging detector and an optical system, wherein an optical path exists between a scene to be imaged on the Earth and the imaging detector, comprising the step of:
Dependencies are inferred from the claim text.