10-38mm PMMA Acrylic Convex Condenser Lens Aspheric Optical for Flashlight Bike Head Lamp DIY Repair(1pcx27.8mm)

Versatile Size Range: Includes 1 piece of acrylic convex lens with diameters from 10mm to 38mm (10, 15, 18, 20, 23, 25, 28, 30, 32, 35, 36, 38mm), suitable for various optical projects and repairs. Precision Aspheric devise: Aspheric surface reduces spherical aberration, providing a more focused and uniform light beam compared to standard spherical lenses, ideal for condenser applications. PMMA Material: Made from durable optical-grade acrylic (PMMA), offering excellent light transmission and impact resistance while remaining lightweight for portable devices. Flat-convex Structure: One flat side and one convex side effectively concentrate light, making it perfect for use in zoom flashlights, bike head lamps, and other DIY lighting or optical systems. Easy to Install & Manual Tolerance: Compact and lightweight devise allows for simple integration. Please note manual size measurement has an error tolerance within 0.3mm; ensure compatibility with your housing before installation.