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:
Jan. 30, 2007
Filed:
Dec. 29, 2001
Danny Filipovich, Lincolnwood, IL (US);
Jack Fiore, Grayslake, IL (US);
Robert O. Ziv, Newton, MA (US);
Philip UY, Antrim, NH (US);
Danny Filipovich, Lincolnwood, IL (US);
Jack Fiore, Grayslake, IL (US);
Robert O. Ziv, Newton, MA (US);
Philip Uy, Antrim, NH (US);
Night Vision Corporation, Lincolnwood, IL (US);
Abstract
A dichroic type narrow-band-pass filter is used as a beamsplitter inside a night vision goggle eyepiece. The filter is combined with appropriately aligned polarizers and liquid crystal type shutter rotators movable between a 'P' orientation and an 'S' orientation to transmit center band and side band wavelengths of the normal view or night scene for recording, transmitting or enhancing. In the enhanced low light level mode, the intensified visible image presented to the user comprises a 40 degree circular image with a 30 degree by 22.5 degree rectangular display insert.