Abstract: A dimming device comprises a light source, a support having a light path corresponding to the light source, a light diffuser, and light shielding blades having notches. The blades and the diffuser are movably disposed on the support. The blades and the diffuser are actuated by independent actuators. The notches move into and out of the light path with the movements of the blades, and the diffuser covers a portion of notches that is within the light path when moving into and out of the light path. The diffuser's movement relative to the light path is not limited to that of the blades, so the diffuser can be precisely controlled to move into a specific position within the light path with an optimal trajectory and at an optimal time point. The diffuser is integrally formed without slots, ensuring diffusion of all light passing through the covered portion of the notches.

Abstract: A hybrid optical integrator assembly and an optical system comprising it. The hybrid optical integrator assembly comprises an optical integrator (21) and a scattering element (22) which is disposed on any cross section of the optical integrator (21) and performs scattering process to a light beam passing through. The hybrid optical integrator assembly is able to shorten a processing path of the optical integrator, so that the optical integrator has a smaller size.

Abstract: The present invention relates to a stage lighting optical system including spot and beam effects simultaneously, comprising a light source assembly from which condensed light can be emitted, an object assembly, and a zoom lens assembly, which are located in a same primary optical axis direction. The light from said light source assembly is cast by the object assembly and the zoom lens assembly. Wherein, said object assembly include an object for beam mode assembly and an object for gobo mode assembly that can be switched with each other and enter to the primary optical axis. Said light source assembly can move forward or backward along the primary optical axis with respect to the object assembly. When the light source assembly moves forward to a first position with respect to the object assembly, the beam design assembly is switched to the primary optical axis.

Abstract: The present invention relates to a filter, a CMY color mixing assembly using the filter and an optical system thereof. Said filter comprises a substrate and a filtering film plated on the substrate, and the filtering film comprises a uniform region and a color mixing region. The thickness of the filtering film in the uniform region is uniform, while the thickness of the filtering film in the color mixing region is not uniform. The thickness of the filtering film in the uniform region is greater than or equal to the thickness of the filtering film in the color mixing region, and the thickness of the filtering film of a central region of the color mixing region is greater than the thickness of the filtering film of side regions of the color mixing region. Said color mixing region is provided at a side where the filter first accesses to a light path.

Abstract: An optical system of LED variable-focus imaging lamp, comprises a LED light source module, a light-collecting assembly, a shutter assembly and a zoom lens assembly, which are installed in sequence according to the direction of a light path. Geometry centers of the module and assemblies are collinear with a primary optic axis A. A focal point F1 of said light-collecting assembly coincides with a focal point F2 of the zoom lens assembly. Said zoom lens assembly comprises a first zoom lens, a diaphragm and a second zoom lens. Said first zoom lens and the second zoom lens can move forward or backward along the direction of the primary optic axis A so that zoom is realized. Said diaphragm is disposed between the first zoom lens and the second zoom lens, and the clear aperture of which is adjustable.

Abstract: An optical system for a stage lamp wherein the optical system comprises: a light source, a light condensing device, an effect component, a lens, a multi-reflector optical component fixed on an upper portion of the lens, a light emitted by the light source being reflected by the light condensing device and converged to form a main light beam along a transmission direction of the light, the main light beam sequentially passing through the effect component and the lens and being reflected by the multi-reflector optical component; wherein the multi-reflector optical component is provided with at least three reflective mirrors, and is connected to a at least three-stage linkage mechanism which is capable of driving the multi-reflector optical component, and achieving a three-dimensional dynamic light spot effect. When the optical system according to the present invention is applied to the stage lamp, one lamp simultaneously presenting a plurality of same dynamic spot effects is implemented.