LIQUID CRYSTAL OPTICAL FILTER SYSTEM,申请号USD3679290-传众专利搜索

LIQUID CRYSTAL OPTICAL FILTER SYSTEM

申请公布号：US3679290(A)

申请号：USD3679290

申请日期：1971.01.06

申请公布日期：1972.07.25

申请人：

XEROX CORP.

发明人：JAMES E. ADAMS;LEWIS B. LEDER;WERNER E.L. HAAS

分类号：G02B5/30;G02F1/00;(IPC1-7):G02F1/16

主分类号：G02B5/30

摘要：An optical filter system capable of transmitting light at substantially all wavelengths of incident radiation while simultaneously reflecting radiation at a single wavelength band or plurality of wavelength bands within the incident radiation is described. The system employs liquid crystal films having optically negative properties but which are opposite in intrinsic screw sense.