Abstract: A device for emitting ultraviolet light configured such as to expose a photopolymer plate, in particular for flexographic printing, includes a main row of lamps in the form of equidistant ultraviolet light tubes, separated from one another by a space. An additional source of ultraviolet light is located outside of the plane of said main row of lamps. Said additional source of ultraviolet light is configured such as to send beams of ultraviolet light through said spaces between the lamps of said main row. An exposure facility is also disclosed, which includes a device as described above, as well as to a method for exposing a photopolymer plate using a the device.