Patent attributes
A lighting device (10) is disclosed comprising a glass housing (20) delimiting an optical chamber (21), wherein at least one solid state lighting (SSL) element (30) is mounted within the optical chamber. The optical chamber (21) further comprises a light exit window (50) mounted in an aperture (23) of the optical chamber opposite the at least one solid state lighting element, the light exit window comprising a sealing plate sealed to the glass housing by a glass seal (51); and a light-transmissive thermal barrier (40) extending across the optical chamber in between the sealing plate and the at least one solid state lighting element, which protects the at least one SSL element (30) from thermal damage during the formation of the glass seal (51). Also disclosed are a luminaire including such a lighting device and a method of manufacturing such a lighting device.
