Title: Liquid crystalline optical filter

Abstract: The optical transitions of extrinsically optically active insoluble materials become optically active and circularly dichroic when in contact with optically negative liquid crystalline materials thereby providing unusual and highly advantageous properties. The circularly dichroic optical properties induced in the extrinsically optically active insoluble materials can be utilized for optical filter applications.

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Inventors: Saeva, Franklin D. (Webster, NY, US)

Application Number: 465048
Filing Date: 1974-04-29
Publication_date: 1976-03-09
Assignee: Xerox Corporation (Stamford, CT)
Primary Class(es): 349/98 349/165, 349/176, 359/490, 359/900
Other Classes:
US Patent Ref:

3697150	Jun, 1972	Wysocki	350/160.
3780307	Dec, 1973	Saeva et al.	350/160.

Other Refs:
Primary Examiner: Smith, Alfred E.
Assistant Examiner: Koven, Matthew W.
Attorney: Ralabate; James J., Shanahan; Michael H., Cannon; George J.