Abstract:
A method of sealing display cathodes in a glass envelope wherein the cathodes having lead wires attached thereto are inserted into a glass envelope having an insertion port. A heatproof insulating stem is then inserted into the glass envelope to a position based inwardly from the insertion port. The stem has apertures which receive the lead wires of the cathodes so that they lead out to the insertion port side of the envelope. Fusion glass is then packed in the space between the stem and the part of the glass envelope about the insertion port and in the spaces formed between the lead wires and the apertures. The fusion glass is then heated by an infrared radiation source to simultaneously fuse and integrally bond the stem with both the lead wires and glass envelope.
Abstract:
A lamp in which the reflector which is provided with a halogen incandescent lamp is beaded, on its widened circumference, around the edge of a cover glass and an epoxy glue is present between said flanged part and a more central part of the cover glass. The flanged edge serves to secure the cover glass and the epoxy resin serves for a substantially completely diffusion-tight seal against water vapour from the atmosphere.