Ultraviolet optical system for fast molding

Abstract

The invention discloses an ultraviolet optical system for rapid prototyping comprising an ultraviolet light source generator which is an ultraviolet irradiation device based on the spherical high-pressure mercury lamp, a transmission light conducting mechanism consisting of optical fiber and connection port A and B, and a light gathering mechanism implemented by an optical combination mechanism, wherein the connection port A connects to the ultraviolet light source generator and the connection port B connects to the optical combination mechanism of light gathering mechanism. It is characterized in that the optical fiber in transmission light conducting mechanism is liquid-core optical fiber. The invention can obtain energy stable emergent light matching to the wavelength of the required ultraviolet for rapid prototyping, can high effectively conduct and gather ultraviolet, and ensure required energy and light spot size for solidifying prototyping materials.

Description

technical field [0001] The invention relates to an ultraviolet optical system for rapid prototyping. Background technique [0002] At present, in the ultraviolet optical system used in the field of rapid prototyping, the light sources generally used are mostly He-Cd ultraviolet lasers and Ar ion ultraviolet lasers. Some use tapered optical fibers, and some use a variety of lens combinations in pursuit of miniaturization of the focused spot. This system has the following disadvantages: the energy output stability of the ultraviolet laser light source used above is poor, and the cost is high; in the light guide mechanism adopted, the reflective optical system is greatly affected by the environment, and the mechanism is complicated. In the optical fiber system, the coupling energy loss caused by the porosity of the single filaments is relatively large; in the light concentrating mechanism adopted, the transmission energy loss of the tapered optical fiber is large, and the syst...

AI Technical Summary

Problems solved by technology

This kind of system has the following disadvantages: the energy output stability of the ultraviolet laser light source used above is poor, and the cost is high; In the optical fiber system, the coupling energy loss caused by the porosity of the single filaments is relatively large; in the light concentrating mechanism adopted, the transmission energy loss of the tapered optical fiber is large, and the system structure of various lens combinations brings great difficulty to processing and adjustment

The above disadvantages limit the popularization and application of rapid prototyping technology using ultraviolet light to a certain extent.

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