Control of spectrum for improvement of color rendering affected by metal vapor mixed with wall-stabilized argon arc

Summary form only given. Some researchers have researched the high-intensity discharge (HID) lamp which is one of the arc lamp with metal vapor, and the line spectrum emitted from the metal vapor is used for improvement of color rendering spectrum. The broad spectrum emitted from continuous spectrum is needed for improvement of color rendering spectrum. Previous research has investigated the spectrum control for the color rendering improvement of the argon arc mixed with Sc (scandium vapor). In addition, it is necessary to perform the calculation using the wall-stabilized arc to equalize the contribution to the temperature distribution which the convection gives it to bell-shaped form in the gas flow-stabilized arc for the axial distance. This research elucidates the control of spectrum for improvement of color rendering spectrum affected by metal vapor mixed with argon using wall-stabilized arc. As a result, the color rendering, lightness, radiation power and luminous efficacy increases with increasing the current and radius of wall-stabilized arc because of the increment of continuous spectrum emitted from high temperature argon.