Optical filter

• Main Authors: MAE YUKIKO, OKADA MITSUHIRO
• Format: Patent
• Language: English
• Published: 08.01.2013
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

An optical filter containing at least one naphtholactam derivative represented by general formula (I), wherein X is oxygen or sulfur; R1, R2, R3, R4, R5, R6, and Y are each hydrogen, halogen, nitro, cyano, aldehyde, carboxyl, hydroxyl, -NRR′, organosilyl, optionally substituted C1-C30 alkyl, optiona...