Light shading device having curved guidance and stage light fixture

A light shading device (1000) having curved guidance, comprising:

• a light passing hole (110) for light beams passing therethrough;
• at least one pair of shading blades (200) arranged opposite one another, which is configured to intercept at least a portion of the light beams to shape the light beams, wherein each pair of shading blades (200) respectively have a shading edge (210) for shading light beams at a side close to each other, and two ends of the side away from each other are respectively connected with a double-link arm (300), wherein the double-link arm (300) includes a first connecting rod (310) and a second connecting rod (320), one end of the first connecting rod (310) is pivoted to one end of the second connecting rod (320), the other end of the first connecting rod (310) is connected to the corresponding shading blade (200), and the other end of the second connecting rod (320) is connected to a driving element (400) and driven to rotate by the driving element (400);
• a guide element, which is configured to limit a guide point (220) on each shading blade (200) to move along a curved path (C) on a plane where the corresponding shading blade (200) is located;
• and
• a rotatable base plate (700) for driving all the shading blades (200) to rotate integrally, wherein the driving element (400) is fastened to the rotatable base plate (700).