Patent ID: 7700899
Filing Date: 2010-04-20
Classification: H01L,H05B

Abstract:
1. Heating device of the light irradiation type, comprising: at least one light source part in which several filament lamps are located extending parallel to one another, and in which at least one of said filament lamps comprises several filaments which are located along the bulb axis of the bulb and which are supplied with power individually in order to produce light which radiates from the light source part onto an article to be treated, wherein the distance between at least some of the adjacent filament lamps is nonuniform, wherein the filament lamps are arranged in groups, the distance between the adjacent filament lamps differing from group to group, and wherein the first filament lamp group is located in a center region and the second filament lamp groups are located laterally from the first filament lamp group, wherein the distance between the adjacent filament lamps within the first filament lamp group is greater than the distance within the second filament lamp groups.