Light-emitting assemblies

摘要

A display 1 has a matrix array of cells 3 formed in a silicon plate 20 and each containing a tungsten strip filament 13. The cells 3 are filled with a halogen gas and are sealed by a double-glazed window 21 with an infra-red reflecting filter 22 to reflect heat back into the cell while allowing the transmission of visible radiation. The rear 6 of the plate 20 is treated to make it microporous and reduce its thermal conductivity <IMAGE> <IMAGE>