Research/Patents/US 4575493
US 4575493

LOW EXPANSION, MULTIBAND TRANSMITTING GLASSES AND GLASS-CERAMICS

Assignee

GENERAL ELECTRIC COMPANY; A CORP. OF NY.

Filed

Mar 16, 1982

Granted

Mar 11, 1986

Location

LIONVILLE PA US

Abstract

Compositions of metal oxides which may be melted and cooled to produce glasses are disclosed. The glasses may be heat treated to produce glass-ceramics. The glasses have good transmittances for electromagnetic radiation in the ultraviolet, infrared and visible spectra, while the glass-ceramics have good transmittances of infrared radiation. Other physical properties make these materials desirable for purposes such as radomes.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 31, 1983

Rescinded

Aug 26, 1985

Duration

2 years, 4 months

Inventor

  • 1HARRY W. RAUCH

Technology Domains

Click a domain to browse all patents in this category.

Back to patent indexSource: USPTO 35 USC §181 secrecy order records