Semiconductor Physics, Quantum Electronics & Optoelectronics. 2005. V. 8, N 1. P. 106-109.
https://doi.org/10.15407/spqeo8.01.106

Filter for TV and video cameras
L.I. Berezhinsky1, Dae-Yong Park2, Chang-Min Sung2, Kwang-Ho Kwon3, and Sang-Hoon Chai4

1Institute of Semiconductor Physics, NAS of Ukraine, 45, prospect Nauky, 03028 Kyiv, Ukraine Phone: +38 (044) 525-5778. E-mail: lib1938@yahoo.com
2Havit Information Co., 59-3 Jang-Dong, Yusong-gu, Daejeon, 305-343, Korea E-mail: bspark@havit.co.kr
3Department of Electronic Engineering, Hanseo University, 360, Daegok-Ri, Haemi-Myun, Seosan, Choongnam, 356-820, Korea. E-mail: khkwon@creneed.com
4Department of Electronic Engineering, Hoseo University, 21, Sechul-Ri, Baebang-Myun, Asan, Choongnam, 336- 795, Korea

Abstract. An infrared-cut filter for TV and video cameras was calculated and fabricated. The filter contains 28 alternating SiO2 and TiO2 layers. The filter was calculated using the principle of unequal-thickness layers. This filter has a transmittance of 95 % in 400 to 650 nm range and 1 % in 700 to 1150 nm range.

Keywords: interference coating, multilayer interference filter, cut filter.

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