Fluorescence and color filtering integrated device driven by shaftless rim

Abstract

The invention provides a fluorescence and color filtering integrated device driven by a shaftless rim. The fluorescence and color filtering integrated device comprises a shell and a rotating ring assembly arranged in the axial direction of the shell, wherein the rotating ring assembly comprises a stator, a rotor, a fluorescent ring and a color filter ring which are sequentially arranged in the shell in a sleeving manner; the stator is fixedly connected with the shell, the two ends of the rotor are installed on the shell through bearings, the fluorescent ring is arranged close to the inner sideof the rotor, the color filter ring is arranged close to the fluorescent ring, and the area of the inner circle, close to the center of the rotor, of the fluorescent ring and the color filter ring isless than that of the inner circle far away from the center of the rotor. Compared with the prior art, the fluorescent ring, the color filter ring and the motor rotor are integrated, the dynamic balance correction requirement is low, the torque is large, the torque inertia is small, the vibration and noise are small, and the energy utilization rate is high; meanwhile, the synchronization of the fluorescent ring and the color filter wheel is effectively achieved, the modular design is adopted, the structure is compact, and the installation and maintenance are easy.

Description

technical field [0001] The invention relates to the technical field of laser light sources, in particular to a fluorescent and color filter integrated device driven by a shaftless rim. Background technique [0002] Laser is a light source with high brightness, strong directionality, and monochromatic coherent light beam. Due to its many advantages, it has been gradually used as a light source in the field of projection display technology in recent years. [0003] Phosphor powder is coated on the wavelength conversion device, and the laser beam irradiates and excites the phosphor powder to produce fluorescence of a corresponding color. For example, a blue laser is used to excite green and yellow phosphors on a wavelength conversion device to produce green fluorescence and yellow fluorescence. [0004] A commonly used wavelength conversion device is a fluorescent wheel. In order to obtain monochromatic light of the three primary colors, a filter device is also installed in t...

AI Technical Summary

Problems solved by technology

At present, the commonly used method is to use two sets of driving motors to drive the fluorescent wheel and the color filter wheel respectively, but each sensor needs to be set to detect the rotational speed, and the rotational speed of the two wavelength conversion devices is adjusted according to the output feedback of the optical filter device to achieve synchronization. The software The complexity increases, and the control is relatively complicated

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