The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 1987
Filed:
Dec. 09, 1977
Fernand R Loy, Sceaux, FR;
Abstract
An optical and mechanical scanner including a device for scanning a field of vision to detect and recognize with high resolution distant objects in the field of vision. Scanning is accomplished in two directions including a direction x for line scanning and a direction y for raster or image scanning. One embodiment of the scanning device includes, in order along the direction of a path of a mean incident beam from the field of vision, an objective, a raster scanning mirror for scanning in the y direction, a field mirror which delimits the field of the objective in the x direction, a rotating drum and an image transport system for line scanning in the x direction, the field mirror deflecting the beams towards the drum, and a detector sensitive to the radiation contained in the beams, the scanning device ensuring convergence of the beams at the detector. The scanner also includes a system for direct visualization of the image scanned, and in one embodiment the scanner has scanning and visualization beams using different paths symmetrical with respect to a plane. The direct visualization system includes the drum, another reflecting surface of the scanning mirror, the detector, a second image transport system and a second field mirror which are symmetrical about an axis with respect to the other transport system and field mirror, respectively, a plane mirror, an electroluminescent diode symmetrical about the plane mirror with respect to the detector, and a circuit for feeding signals to the diode corresponding to the field image being scanned.