Optical: systems and elements – Compound lens system – Microscope
Patent
1995-12-19
1998-03-24
Dzierzynski, Paul M.
Optical: systems and elements
Compound lens system
Microscope
359368, 359371, G02B 2106, G02B 2100
Patent
active
057318948
ABSTRACT:
A multi-purpose objective for use in a compound microscope wherein the microscope has an eyepiece and a multi-purpose processing element in the back focal plane or Fourier plane of the objective and an aperture or slit for the light source situated in the front focal plane or conjugate Fourier plane of the condenser. An aperture specimen stage is disposed between the condenser and objective lenses. The multi-purpose light processing element has a plurality of light processing regions upon a selected region of which the image of the aperture slit is formed. The aperture element is moveable relative to the multi-purpose light processing element so as to direct light onto the selected region of the multi-purpose processing element. By directing the light illuminating the specimen onto the selected area of the multi-processing plate or element, the image selected of the specimen can be viewed in any mode such as, phase contrast, modulation contrast, colored images similar to a differential interference contrast, bright field images, dark field images and stereo imagery.
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patent: 4761066 (1988-08-01), Carter
patent: 5009488 (1991-04-01), Fay et al.
patent: 5018851 (1991-05-01), Matsumura
Modulation Contrast Microscope, May 1975/vol. 14, No. 5/Applied Optics, pp. 1169-1176.
Dzierzynski Paul M.
Robinson Mark A.
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