Stage lamp optical system having soft light and light beam effects

Abstract

The invention relates to a stage lamp optical system having soft light and light beam effects. The stage lamp optical system having the soft light and light beam effects comprises a light source assembly, a light collecting device, an effect assembly and an imaging light path system which are sequentially arranged along a light path; the imaging light patch system comprises a focusing lens assembly, a magnifying lens assembly and a fixed lens assembly which are sequentially arranged along a light path; a soft light transformation assembly which can move front and back along the optical axis direction is arranged inside the imaging light path system; the soft light transformation assembly is arranged between the magnifying lens assembly and the fixed lens assembly; the soft light transformation assembly and the magnifying lens assembly are connected with a first driving mobile mechanism; the first driving mobile mechanism drives the soft light transformation assembly and the magnifying lens assembly to move front and back along the optical axis direction to adjust zoom ranges under a soft light mode. The stage lamp optical system having the soft light and light beam effect achieving switching of a soft light effect and a light beam effect, is good in effect under the light beam effect and meanwhile the zoom ranges can achieve 6 to 12 times under the soft light mode.

Description

technical field [0001] The invention relates to the technical field of stage lighting, and more particularly, to a stage lighting optical system with soft light and beam effects. Background technique [0002] Beam light is a kind of stage light commonly used in the field of stage lighting technology, which is used to produce light with beam effect (beam effect). Soft light (wall washer) is another stage lighting commonly used in the field of stage lighting technology. It is generally used to expand and soften the beam emitted by the light source, so as to project soft light to achieve the effect of dyeing and rendering the stage. [0003] The lens of the existing beam light generally adopts two structures of lens: one is that the traditional beam light system uses a Fresnel lens with a small ring distance. The advantage of this structure is that the light body is light and the cost is low. The beam effect is not good (the edge is not sharp enough), the stray light is seriou...

AI Technical Summary

Problems solved by technology

However, since the scattering particles on the Fresnel lens are integrally formed with the Fresnel lens, the scattering particles cannot be disassembled or removed when the whole lamp is installed and put into use. Generally, this kind of soft light can only produce a soft light effect. light, light that does not produce a beam effect

[0005] In order to solve the switch between the effects of the two lamps, there are several solutions in the prior art. One is the beam lamp as mentioned above. A glass sheet with scattering properties is arranged in front of the pattern effect component of the beam lamp, but this The glass sheet in the structure can only obtain the soft light effect of a single projection angle, which has certain limitations in use and achieves a single effect; the second is based on the traditional beam light based on the Fresnel eye-eye lens, the light source component and the Fresnel eye-eye lens Add a diffuser lens or a combination of a diffuser lens between the lens components. The added diffuser lens or diffuser lens can be cut in or out of the optical path system under the control of the motor to achieve the switch between the beam effect and the soft light effect. Although this structure can realize switching between the two effects, there are still the following defects: the existing technical solution is based on the optical path system of the original Fresnel eye-eye lens beam lamp, the effect is not good in the beam mode, and the edges are not sharp enough. In the soft light mode, the variable magnification range is small, usually only about 3 times

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