Optical: systems and elements – Compound lens system – Microscope
Patent
1996-09-25
1998-05-26
Nguyen, Thong
Optical: systems and elements
Compound lens system
Microscope
359368, 359271, 359386, G02B 2106, G02B 2100
Patent
active
057575428
ABSTRACT:
A polarizing accessory system for use with a microscope. The microscope comprises an optical tube having a eye-piece lens and an objective lens, a stage having an aperture therein, and a light conveying rod arranged to covey light through the aperture to the objective lens and the eye-piece lens. The accessory system comprises a first, tray-like polarizing unit arranged to be disposed on the microscope stage over the aperture, and a second, cup-shaped polarizing unit arranged to be releasably mounted over the eye-piece lens. Each polarizing unit includes a planar polarizing filter or film mounted therein. The tray-like unit comprises a peripheral planar frame defining a central window in which a first polarizing filter element is located. The central window forms a support surface for two, conventional specimen-holding slides disposed in a side-by-side array. The width of the window is equal to the width of the slides to hold them securely in place thereon. The tray enables the slides to be positioned at any place on the surface of the microscope's stage. The cup-shaped polarizing unit is rotatable with respect to the optical tube (and the tray-like polarizing unit disposed on the stage) so that one can readily adjust the amount of light polarization desired.
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