Method for manufacturing ultraviolet microscope dry objectives and microscope objectives manufactured in accordance with this method
Patent 5440422 Issued on August 8, 1995. Estimated Expiration Date: 
June 14, 2013. 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.
June 14, 2013. 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 3348896 Ultra-violet micrographic objective Microscope objective with correcting means Mapping lens UV-capable dry lens for microscopes Objective lens system for microscope Objective lens system for use within microscope Objective lens system for use within microscope Patent #: 5159492 InventorAssigneeApplicationNo. 076121 filed on 06/14/1993US Classes:359/355, Lens, lens system or component359/657Having seven componentsExaminersPrimary: Lerner, MartinAttorney, Agent or FirmForeign Patent References
International ClassesG02B 013/14G02B 011/34 Foreign Application Priority Data1992-06-12 DEAbstractA method for the manufacture of quasi-monochromatic microscope dry objectives for a wavelength range from 190 to 360 nanometers proceeds from a basic objective with a specified number of lenses. The basic objective is corrected for a specified wavelength with respect to image aberrations. By using lenses with slightly different production thicknesses and by arranging the lenses at different air separations, objectives for other areas of application are created. All of the objectives have the same number of lenses and virtually the same resolution. The data for three objectives derived from a basic objective are provided as an example. | |
