Other SLA printers like the Form 1 and 2 from Formlabs also cure with (barely) visible light technically (405nm laser). It normally doesn't cure fast enough for

Other SLA printers like the Form 1 and 2 from Formlabs also cure with (barely) visible light technically (405nm laser). It normally doesn't cure fast enough for the problem you describe to be a problem, though stray light will in general cure it over time.