Variable magnification color scanning light microscope
Patent 5430807 Issued on July 4, 1995. Estimated Expiration Date: 
December 14, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 14, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2671128 3315229 3593284 3819913 3827804 3873974 3908078 Automatic focusing system including quantizing means Automatic focusing system Pattern recognition system with keyboard entry for adaptive sensitivity InventorAssigneeApplicationNo. 990030 filed on 12/14/1992US Classes:382/128, Biomedical applications348/79, Microscope382/322Single spotExaminersPrimary: Razavi, MichaelAssistant: Prikockis, Larry J. Attorney, Agent or FirmInternational ClassH04N 005/30AbstractAn improved imaging system operates at the diffraction limit of the optics to which it is connected and outputs a signal representative of the sample lying in the sample plane. The imaging system comprises a cathode ray tube, an optical lens system and a means for sensing. The cathode ray tube comprises an electron gun for generating an electron beam in a raster pattern. The raster pattern comprises a predetermined number of horizontal lines that are spaced vertically from each other a predetermined and equal distance. The electron beam is adapted to produce an illuminated spot that scans correspondingly in the raster pattern and wherein the spot is positioned in an object plane. The optical lens system for focusing in a diffraction limited manner, the object plane on to the sample plane, such that the image of the spot is the smallest diffraction limited size as determined by the optical lens system. The imaging system also includes zoom and contrast enhancement/suppression capabilities.Other References
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