PROBLEM TO BE SOLVED: To provide a dental light-curing apparatus, enabling a backlit display, which, on the one hand, may be produced at comparably low cost, and on the other hand, allows good recognizability independently of the external lightning state.SOLUTION: The present invention relates to a dental light-curing apparatus, which dental light-curing apparatus comprises: a display device (12) on or at a housing wall (10) of the light-curing apparatus, especially on an upper face of the light-curing apparatus and a plurality of light sources, which are arranged inside the wall (10) and are directed to the wall (10) at least part of the wall (10) being transparent to the light radiation emitted from the light sources. The wall comprises a smooth outer surface, and an equally essentially smooth inner surface of the wall is provided with a negative pattern (18) formed especially by printing to expose symbols (14), which negative pattern (18) is light-impermeable or essentially light-impermeable. The wall is superimposed on a light source structure which includes partition walls to separate the light sources from each other.SELECTED DRAWING: Figure 1【課題】バックライトによる表示を実現するものであって、一方で比較的低コストに製造可能であるとともに他方で外部の照明状態に依存せずに良好な認識性を可能にする。【解決手段】この発明は、光硬化装置のハウジング壁部(10)に、特に光硬化装置の上面に表示装置(12)を備え、また前記壁部(10)の内側に配置されるとともに前記壁部(10)に向かって指向する複数の光源を備え、その際前記壁部(10)の少なくとも一部が前記光源から放射される光線に対して透光性である歯科用光硬化装置に関し、前記壁部が平滑な外表面を有するとともに同様に実質的に平滑な前記壁部の内表面が特に印刷によるネガパターン(18)を有していてそのネガパターンがシンボル(14)を露出させ、また前記ネガパターン(18)は非透光性かあるいは実質的に非透光性であり、さらに前記光源を相互に分離する分離壁を有する光源構造上に前記壁部を設置する。【選択図】図1