Compositions – Light transmission modifying compositions – Infrared
Patent
1989-07-24
1992-05-12
Stoll, Robert L.
Compositions
Light transmission modifying compositions
Infrared
252582, 252589, 359322, 359328, 359332, F21V 904, F21V 900, G02B 610
Patent
active
051125323
ABSTRACT:
A novel organic non-linear optical material and a device using the same are disclosed. The material hardly makes reversal symmetrical molecular configuration in a bulk state such as a crystal and a thin layer and shows a high non-linear optical effect. A non-linear optical device using the material has an excellent properties. The organic non-linear optical material is comprised of the following compound: ##STR1## wherein R.sub.1, R.sub.3 and R.sub.4 are independently a hydrogen atom, a cyano group, a phenyl group, an amino group, an alkoxy group, an acylamino group, an alkylthio group, an alkyl group, an alkoxycarbonyl group, carbamoyl group or a heterocyclic group, provided that R.sub.3 is allowed to link together with R.sub.4 to form a ring and R.sub.1, R.sub.3 and R.sub.4 are not hydrogen atom at the same time; R.sub.2 is a hydrogen atom, an alkyl group or an acyl group; and said groups represented by R.sub.1, R.sub.2, R.sub.3, R.sub.4 and the ring formed by linking the groups represented by R.sub.3 and R.sub.4 are allowed to have a substituent.
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Masukawa Toyoaki
Morita Miki
Nakayama Noritaka
Ninomiya Hidetaka
Bierman Jordan B.
Konica Corporation
Stoll Robert L.
Tucker Philip
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