Development Of Glasses For High Resolution UV Fiber Optic CRT Faceplates

M. A. Ali; A. G. Pincus; M. A. Schwartz

doi:10.1117/12.953431

1 June 1970 Development Of Glasses For High Resolution UV Fiber Optic CRT Faceplates

M. A. Ali, A. G. Pincus, M. A. Schwartz

Proceedings Volume 0021, Fiber Optics II: Applications and Technology; (1970) https://doi.org/10.1117/12.953431
Event: Fiber Optics II, 1970, Dallas, United States

Abstract

Compatible core and clad glasses transmitting peak uv radiation at 320nm have been developed for fiber optic applications. Research was conducted to formulate compositions having high transmission in the near- and medium-ultraviolet region and capable of being fabricated into fiber optic faceplates for ultra-high resolution cathode ray tubes. The glass forming the radiation transmitting core is a lanthanum-zinc-borate composition having an index of refraction (nd) of 1.71 and peak internal transmission of over 80% at 320nm for 1/4-in. thick-ness. A matching potassium-alumino-boro-silicate cladding glass having a low index of refraction (nd = 1.47) was also developed. Both glasses possessed compatible coefficients of thermal expansion and softening points to produce faceplates having fiber centers approaching five microns in spacing. A theoretical numerical aperture in excess of 0.8 is achieved with these glasses.

Citation Download Citation

M. A. Ali, A. G. Pincus, and M. A. Schwartz "Development Of Glasses For High Resolution UV Fiber Optic CRT Faceplates", Proc. SPIE 0021, Fiber Optics II: Applications and Technology, (1 June 1970); https://doi.org/10.1117/12.953431

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