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:
Jun. 02, 2015
Filed:
Apr. 23, 2012
Le LI, Hopewell Junction, NY (US);
Yongxin Tang, Poughkeepsie, NY (US);
Haiping Yu, Hopewell Junction, NY (US);
Jie Yang, Fishkill, NY (US);
Jiangbin Zhao, Fishkill, NY (US);
Le Li, Hopewell Junction, NY (US);
Yongxin Tang, Poughkeepsie, NY (US);
Haiping Yu, Hopewell Junction, NY (US);
Jie Yang, Fishkill, NY (US);
Jiangbin Zhao, Fishkill, NY (US);
Kent Optronics, Inc., Hopewell Junction, NY (US);
Abstract
A sensing device may include a cholesteric crystal device including two optically transparent substrates; a liquid crystal having portions adapted for producing a plurality of optical states, said liquid crystal being arranged between the two optically transparent substrates; an optical sensor for changing optical states of respective portions of said liquid crystal to produce a range of respective optical states including all optical states produced by said liquid crystal ranging from one state to any combination of broadband reflection, tunable narrow band reflection, light scattering, and transparency in accordance with an amount of voltage applied across said cholesteric crystal device for changing optical states.