Anti Blue Light Pens for Lens Test

The multifunctional blue light test pen adopts high-purity blue light-emitting lamp beads, which can efficiently test the blue light protection effect of various optical lenses. When in use, align the blue light beam with the lens surface: if the lens has a blue light blocking function, the contact position will show obvious blue-purple/dark blue blocking marks; lenses without a blue light blocking effect will transmit light without color development, with clear and accurate test results. Compact and lightweight with a comfortable grip, it is suitable for optometry testing in optical shops, self-inspection for personal glasses purchase, daily verification of lens blue light blocking performance, and other scenarios. It easily identifies qualified blue light blocking lenses, rejects ineffective eye protection, and guards visual health.