Abstract: A device for hardening a coating on an inner wall of a conduit having an oval cross section has at least a first UV lamp, a second UV lamp, and a guide unit having a mount for each of the UV lamps. The guide unit defines the position of the UV lamps in relation to the oval cross section of the conduit, which has a first curved section, a second curved section opposite the first, and two lateral sections. To allow for universal use and the most uniform possible UV irradiation of the inner wall, a first reflector is allocated for guiding light emitted by the first UV lamp onto the first curved section, and a second reflector is allocated for guiding light emitted by the second UV lamp onto the second curved section. The first and second reflectors differ in their reflector angle and/or their coefficient of reflection.

Abstract: A module is provided for irradiation of at least one substrate. The module includes an irradiation unit for irradiating the substrate with ultraviolet light, wherein the irradiation unit has a discharge lamp with an integrated reflector. A method is also provided for producing an irradiation module for irradiating a substrate using UV light, wherein the reflector is coated on the discharge lamp.

Abstract: A module is provided for irradiation of at least one substrate. The module includes an irradiation unit for irradiating the substrate with ultraviolet light, wherein the irradiation unit has a discharge lamp with an integrated reflector. A method is also provided for producing an irradiation module for irradiating a substrate using UV light, wherein the reflector is coated on the discharge lamp.