Holding device and light-emitting module

The invention relates to a holding device and a light-emitting module. The invention relates to a lighting device (1) comprising a number of lenses (6, 6 ', 6' ') arranged at an axial distance from one another, which lenses are surrounded and held by a peripheral body (7) comprising two half shells (12, 12') fixedly connected to one another, the peripheral body (7) having a plastic material (30), the peripheral body (7) having such an axial length and a holding mechanism, the invention relates to a lighting device (1) comprising a peripheral body (7) and a plastic material (30), said peripheral body (7) being arranged in such a way that, in an end region (21) of the peripheral body (7), a light source unit (2) of the lighting device (1) is surrounded and held in order to form a lighting module (8), and the plastic material (30) is filled as a thermoplastic or thermosetting material or as a composite material with at least one additional material (31) that reduces thermal expansion. 本发明涉及一种保持装置以及发光模块，所述照明装置包括一