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:
Oct. 07, 1980
Filed:
Nov. 13, 1978
Julius A Kuck, Cos Cob, CT (US);
Fairfield University, Fairfield, CT (US);
Abstract
The micropolarizing equipment of the present invention consists in a pair of capillary tubes of black glass or glass with a black outer coating which fit into sockets in three prisms, the first being a 45.degree. prism over the central aperture of the microscope stage which reflects the plane polarized beam at right angles through one of the capillary tubes; a second prism, which is double, reflects light emerging from the first capillary tube at right angles up to a second 45.degree. prism into which the second capillary tube is mounted in a socket and is parallel to the first capillary tube. The third prism receives the other end of the second capillary tube in a socket and reflects the light up into the objective of the microscope. While split field, null point determination may be used, a much more efficient device is one or more small anisotropic crystals mounted, for example in a drop of liquid or in a thin film, on the top of the third prism and located to be in the path of the light reflected up into the objective of the microscope. The crystal, or one of the crystals, when viewed with polarizer and analyzer crossed is bright, usually in color depending on the wavelength of the light source used, and the particular crystal on which the microscope objective is focused disappears when the stage has been turned to compensate for the optical rotation of the sample in the two capillaries. The extinction of the crystal is very sharp and is preferred over split field devices.