Electric lamp and discharge devices – Cathode ray tube – Envelope
Patent
1991-10-22
1993-09-07
Yusko, Donald J.
Electric lamp and discharge devices
Cathode ray tube
Envelope
313112, 313473, 313479, 358253, 359581, 359587, 359588, H01J 2988
Patent
active
052432556
ABSTRACT:
A cathode-ray tube includes a face plate having a light transmittance of at most 50% and a reflectivity reduction film formed on the external surface of the face plate to reduce reflectivity of an external light. The reflectivity reduction film is a low refraction index layer formed by using a coating liquid obtained by dispersing and mixing magnesium fluoride superfine particles to a base coating of an alcohol solution containing a silicon alkoxide. The low refraction index layer can be laminated by a high refraction index layer formed by using a coating liquid obtained by dispersing and mixing tantalum oxide fine particles to the same base coating as that of the low refraction index layer.
REFERENCES:
patent: 3504212 (1970-03-01), Wollentin et al.
patent: 4634926 (1987-01-01), Vriens et al.
patent: 4732454 (1988-03-01), Saito et al.
patent: 4747674 (1988-05-01), Butterfield et al.
patent: 4798994 (1989-01-01), Rijpers et al.
patent: 4804883 (1989-02-01), Miller et al.
patent: 4831307 (1989-05-01), Takenaka et al.
patent: 4846551 (1989-07-01), Rancourt et al.
patent: 4945282 (1990-07-01), Kawamura et al.
patent: 5051652 (1991-09-01), Isomura et al.
patent: 5122709 (1992-06-01), Kawamura et al.
Mitsubishi Denki & Kabushiki Kaisha
Patel Ashok
Yusko Donald J.
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