Optical interference film having high and low refractive index l

Details Optical interference film having high and low refractive index l Optical interference film having high and low refractive index l

1988-08-22

1991-01-08

Arnold, Bruce Y.

Electric lamp and discharge devices

With temperature modifier

For lead-in-seal or stem protection

313112, 350166, G02B 528, H01K 126

Patent

active

049830015

ABSTRACT:
An optical interference film being formed by alternately accumulating a low refractive index layer and a high refractive index layer having a prescribed refractive index higher than the low refractive index layer. The high refractive index layer includes at least one metal oxide selected from titanium oxide and tantalum oxide. The low refractive index layer includes silica and a prescribed amount of at least one metal oxide the same as that in the high refractive index layer to avoid inter-layer peeling of high and low refractive index layers.

REFERENCES:
patent: 4588923 (1986-05-01), Hoegler et al.
patent: 4663557 (1987-05-01), Martin, Jr. et al.
patent: 4701663 (1987-10-01), Kawakatsu et al.
patent: 4770479 (1988-09-01), Tustison
patent: 4784467 (1988-11-01), Akatsuka et al.

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