Polarizer with patterned diacetylene layer, method for producing

Details Polarizer with patterned diacetylene layer, method for producing Polarizer with patterned diacetylene layer, method for producing

1991-03-01

1993-08-10

James, Andrew J.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359485, 359492, 359500, G02F 11335, G02B 530

Patent

active

052354490

ABSTRACT:
A method for producing a polarizer patterned with a plural number of portions having a polarizing ability or direction of polarization comprising the first step of producing a surface oriented in a pre-determined direction on a substrate, the second step of producing a polymerizable molecular layer which comprises polymerizable molecules on the above surface, the third step of polymerizing the molecules in said polymerizable molecular layer into a desired pattern and the fourth step of removing the unpolymerized portion of said polymerizable molecular layer. For example, the following procedure is repeated on one surface of a substrate to be given a polarizing ability: (1) An organic thin film uniformly oriented in a particular direction is produced by the Langmuir-Blodgett method, (2) a polymerizable molecular layer is produced on the above thin film, (3) the molecules in the polymerizable molecular layer is polymerized into a desired pattern and (4) the portion left unpolymerized of the polymerizable molecular layer is removed. By this treatment, a polarizer having as many orientation directions as the number of repetitions is obtained. The orientational order can also be given by rubbing in place of the Langmuir-Blodgett method.

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