Invention Grant
- Patent Title: Variable opacity or translucency of a through-vision panel
- Patent Title (中): 透视面板的不透明度或半透明度
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Application No.: US11998867Application Date: 2007-11-30
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Publication No.: US07920314B2Publication Date: 2011-04-05
- Inventor: John D. Nerden
- Applicant: John D. Nerden
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Main IPC: G02B26/02
- IPC: G02B26/02

Abstract:
A multi-sheet through-vision panel includes a first outer sheet, a second outer sheet, and a middle sheet located between the first and second outer sheets. The first and second outer sheets are superposed with one another. At least one light impairing zone is disposed on at least one of the first and second sheets, as well as the middle sheet. A sliding mechanism slides the middle sheet with respect to the first and second outer sheets so that the light impairing zones are moved between a first and second position. The light impairing zones are superposed with one another when the middle sheet is in the first position, but are in a staggered arrangement when the middle sheet is in the second position.
Public/Granted literature
- US20080144159A1 Variable opacity or translucency of a through-vision panel Public/Granted day:2008-06-19
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