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:
Sep. 13, 2005
Filed:
Aug. 03, 1998
Pavel Ivanovich Lazarev, Moscow, RU;
Alexandr Alexandrovich Miroshin, Moscow, RU;
Nikolai Vladimirovich Malimonenko, Lobnya, RU;
Sergei Vasilievich Belyaev, Moskovskaya, RU;
Pavel Ivanovich Lazarev, Moscow, RU;
Alexandr Alexandrovich Miroshin, Moscow, RU;
Nikolai Vladimirovich Malimonenko, Lobnya, RU;
Sergei Vasilievich Belyaev, Moskovskaya, RU;
Optiva, Inc., South San Francisco, CA (US);
Abstract
The invention belongs to polarizing devices and can be used in lighting equipment, manufacturing construction-material glasses, and in displays. The proposed dichroic polarizer includes a substrate and at least one layer dichroically absorbing electromagnetic radiation, into which two reflecting coatings are introduced, at least one of which is made partially transmitting. The layer dichroically absorbing electromagnetic radiation is located between the reflecting coatings. The materials and thicknesses of layers of both the dichroically absorbing electromagnetic radiation and the reflecting coatings are selected from the requirements to obtain, at the exit of the dichroic polarizer, an interference minimum for the absorbing component of electromagnetic radiation for, at least, one wavelength value. The invention leads to increasing efficiency of dichroic polarizers at the expense of increasing degree of polarization of electromagnetic radiation leaving the polarizer, while high transmission (reflection) coefficient for the non-absorbed component is preserved. 5 formulas, 3 illustrations.