http://uv-curing-store.com/en/tags/exposure/ Recent content in Exposure on UV Curing Store Hugo en-us Mon, 29 Jun 2026 23:24:38 +0800 http://uv-curing-store.com/en/posts/gallium-uv-lamp-for-screen-exposure/ Mon, 29 Jun 2026 23:24:38 +0800 http://uv-curing-store.com/en/posts/gallium-uv-lamp-for-screen-exposure/ <p><img src="http://uv-curing-store.com/images/9077c93f1832a70892d6b411b332986f.png" alt="Gallium UV lamp for screen exposure"></p> <p>On the exposure line, underexposure is the kind of problem that quietly wrecks your day. Weak stencils, pinholes, and the <a href="https://goldisgood.com">inevitable</a> rework that eats press uptime. The reality is, your UV lamp’s spectral output decides whether the photopolymer cross-links properly—or folds halfway through the run.</p> <h3 id="what-actually-matters-under-the-hood">What actually matters under the hood</h3> <p>We build the gallium UV lamp for screen exposure around a 365nm peak, a mercury-vapor spectrum tuned for photopolymer initiation. Arc length and doping are set to deliver stable irradiance across the emitter, not just a hot spot down the middle. Peak irradiance is engineered to exceed 1,200 mW/cm² at the stencil surface, which translates to curing energy density above 300 mJ/cm² in typical exposure windows. That output is matched to dichroic reflectors that shape the <a href="https://henruite.com">envelope</a> and cut wasted IR, so you keep heat off the vacuum frame and off the film. The lamp runs ozone-free, and the quartz envelope is built to survive repeated thermal cycling.</p>