Focusing component for stage projector lamp

Abstract

The invention relates to a focusing component used for stage spotlights, comprising a light source component, a reflective bowl component, a sliding seat panel, a lead screw and a slide bar, the lightsource component and the reflective bowl component are fixed on the slide seat panel respectively, protrusive side panels 9, 10, 11, 12 and 13 are arranged on the edge of the slide seat panel, the side panel 9 and the side panel 10 are symmetrical, the side panel 11 and the side panel 12 are symmetrical; a sliding block is fixedly connected on the inside of the side panel 13 and a chute which isfitted with the propulsion screw on the lead screw is arranged on the sliding block; two big guide sleeves are symmetrically fixedly connected on the side panel 1 and the side panel 2, the inner diameter of two guide sleeves is equal to external diameter of the lead screw, two small guide sleeves are symmetrically fixedly connected on the side panel 3 and the side panel 4, the inner diameter of the two small guide sleeves is equal to the external diameter of the lead screw and the distance between the axial center of the two big guide sleeves and the slide seat panel is equal to the distance between the axial center of the two small guide sleeves and the slide seat panel; the lead screw goes through the two big guide sleeves and the slide bar goes through the two small guide sleeves. The focusing component used for stage spotlights has the advantages of enabling the stage spotlight focusing system to position accurately and prolonging the service life of the bulb.

Description

technical field [0001] The invention relates to the technical field of stage spotlights, in particular to a stage spotlight focusing assembly. Background technique [0002] Stage spotlights are a kind of lamps used for stage lighting. The stage spotlight focusing assembly includes a light source assembly and a reflective bowl assembly fixed on the slide plate, as well as a lead screw and a slide rod that push the slide plate to advance. In the traditional stage spotlight focusing assembly, two perforations are respectively opened on the two side plates protruding from the left and right sides of the slide seat plate, so that the screw and the slide rod pass through the two holes respectively. When focusing, turn the lead screw and twist it by hand, so that the slide plate can drive the light source assembly and the reflective bowl assembly to move synchronously, thereby realizing the focusing function. However, due to the large gap between the perforation and the lead scre...

AI Technical Summary

Problems solved by technology

However, due to the large gap between the perforation and the lead screw and the slide rod, when the focus is adjusted, the rotation of the lead screw will not only generate noise, but also cause uneven force on the slide plate during the movement process and a large idle stroke, resulting in a loss of focus during the focus adjustment process. The light source assembly tilts and vibrates, causing the following to occur:

[0003] 1. The positioning of the center of the light bulb in the light source assembly is not accurate, which affects the accurate positioning of the focus;

[0004] 2. The bulb vibrates in the incandescent state, reducing the service life of the bulb

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