In the present invention, the substrate (2), the non-transparent spacer (4) connected to the substrate (2) so as to be hermetically sealed, the opening of the spacer (4) opposite to the substrate (2), and the spacer. An irradiation device (1), the spacer (1), which is located below (4) and below the opening and includes an illumination element (3) which is connected to the substrate (2) so as to be hermetically sealed. An irradiation device (1) in which the opening of 4) is closed so as to be hermetically sealed by an optical element (5) made of a glass material having a volume of at least one light emitting group and thus constituting a light emitting composite glass material. ).本発明は、基板(2)と、気密封止されるように基板(2)に接続された非透明のスペーサ(4)と、基板(2)反対のスペーサ(4)の開口部と、スペーサ(4)の下方で、開口部の下方に位置し、気密封止されるように基板(2)に接続される照明要素(3)とを含む、照射デバイス(1)であって、スペーサ(4)の開口部が、ボリュームが少なくとも一つの発光団を含み、従って発光複合ガラス材料を構成するガラス材料からなる光学素子(5)によって、気密封止されるように閉鎖される照射デバイス(1)に関する。