@inproceedings{4442e30f5c67481da40d11e3016fb2fb,
title = "Optical attenuator using liquid crystal film",
author = "Pentti Karioja and Arto Karppinen and Harri Kopola and Risto Myllyl{\"a}",
note = "Project code: OPE 2025 ; IS\&T/SPIE International Symposium on Electronic Imaging : Science \& Technology ; Conference date: 06-02-1994 Through 10-02-1994",
year = "1994",
doi = "10.1117/12.172111",
language = "English",
booktitle = "Liquid Crystal Materials, Devices, and Applications III",
publisher = "International Society for Optics and Photonics SPIE",
address = "United States",
}