PATIKIL 1300mm Focal Length Biconvex Lenses, 2 Pieces, 100mm Diameter, 11mm Height, Glass Optical Polishing, Round Edge Lenses, Clear, for Physics

Color: Transparent, Material: Glass, Focal Length: 300mm, Overall Size: 100 x 11mm (Outer Diameter * H), Packing List: 2 x Glass Lenses Advantages: Made of high-quality glass that is durable, scratch-resistant, and provides excellent optical performance. The rounded edges are polished for ease of assembly. The biconvex lens shape provides a wide field of view and produces clear, crisp images. The lenses are precisely measured and have a consistent curvature, ensuring consistent performance and results. Instructions: Once you have determined the focal length, place the lens in front of the light source. The outward-curved side of the lens should face the object you want to focus the light onto. Move the lens back and forth until the image of the object is focused on the screen or surface. Applications: A biconvex lens is a type of lens that is thicker in the center than at the edges and is used to focus light. It can be used to create telescopes suitable for a variety of applications, including science experiments, photography, and optical equipment. Caution: Handle with care to avoid scratching or damaging the lens surface.