Since its invention, laser (Light Amplification by Stimulated Emission of Radiation) has become a cornerstone of modern technology and medicine. However, few realize that the wavelength of a laser—its color and the invisible "light" it emits—is crucial in determining its applications. From precise ophthalmic surgery to deep-space communications, from micro-machining to defense technology, the choice of wavelength is like giving a laser a unique "identity code." This article will unlock the mysteries of different laser wavelengths and explore how they are profoundly changing our lives.
Why 405nm?
· 405nm near-UV wavelength matches the maximum absorption peak of all mainstream UV photopolymer resins (including elastic resins for 3D printed shoes), enabling efficient photopolymerization/curing.
· Higher photon energy than ordinary LED, deeper curing depth, wider adaptability to high-viscosity, high-filler industrial resins.
DLP (Digital Light Processing) is a vat photopolymerization resin 3D printing technology.
The feasibility, efficiency, and final beam quality of coupling a laser beam into an optical fiber all depend on the characteristics of the original laser and the type of optical fiber.
