Design and Preparation of New Type Day and Night Filter

DOI

10.2991/emeit.2012.285How to use a DOI?

Keywords

thin film optics, day and night, filter, ion beam assistant deposition

Abstract

In order to image no color cast in daytime, and form black and white image at night, we use day and night filter to instead mechanical switching system in infrared night vision camera and monitoring system. Essential Macleod software is used to optimize the film spectra, the average transmittance exceeds 90% in 440~640nm. The spectra has a band pass in 850nm, the bandwidth is less than 40nm, and the peak transmittance is less than 20%. Physics vapour depositing method with the aid of ion beam assistant deposition systems is adopted. Through reducing film thickness error and optimizing technical parameter, we get the new type day and night filters on substrate of K9 glass.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Maojin Dong
AU  - Tao Chen
AU  - Yuqing Xiong
AU  - Duoshu Wang
AU  - Jizhou Wang
PY  - 2012/09
DA  - 2012/09
TI  - Design and Preparation of New Type Day and Night Filter
BT  - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
PB  - Atlantis Press
SP  - 1287
EP  - 1290
SN  - 1951-6851
UR  - https://doi.org/10.2991/emeit.2012.285
DO  - 10.2991/emeit.2012.285
ID  - Dong2012/09
ER  -