Title: Separating colour filter
Application Number: 85104805 Application Date: 1985.06.22
Publication Number: 1005990 Publication Date: 1986.12.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G02B5/23,H04N9/07
Applicant(s) Name: Hitachi Ltd. Address:
Inventor(s) Name: Hiroichi Soyoshi, Kazuo Shinkore
Attorney & Agent: ZHAO RONGMIN
Abstract:
     A red-colour filter chip has been made for cameratube-dichroic-colour filter of mono-cameratube television camera. It has been arranged in no-blue-colour filter or no-blue no yellow-colour filter portions. Its absorbing light range is 550-570 micron. In which its transperenty is 40-75%. Above mentional portions are in the valid image screen. Between 560 micron of blue and visible light wavelength, the transperenty of this red-colour filter is basically equal to blue one. Later's average transperenty is 8% or lower than 8% at 620-680 micron wave length range.
Time: 8
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