Holding device for light=forming ancillary unit, such as reflector on lighting installation

摘要

The holding device has at least three movable tension components, which accommodate the ancillary unit on one inner edge and hold it clamped radially outwards. A positioning plate (15) is rotatable around the optical axis and has radially inwards running guides (23,24,25) for accommodation of guide ends (38) of the tension components (30,31,32). The guides are formed as radially inwardly directed arc-shaped long holes and at least one lever arm of the tension components is elastically sprung. The lever arm formed between the guide end and a link point of the tension components is a leaf spring.