PATIKIL 20 mm 30 mm Focal Length Biconvex Lens Set Biconcave Lens Set Glass Optical Polishing Round Edge Lens for Physics Experiment Classroom Clear

Color: Transparent, Material: Glass, Focal Length: 20 mm, 30 mm, Overall Size: 90 x 75 mm, 60 x 75 mm (Outer Diameter*H), Packing List: 2 x Glass Lens Advantages: Made of good quality glass, durable, scratch resistant and provides excellent optical performance. The rounded edges are polished and are not easy to hurt your hands when assembling. Adopts a double concave shape that diffuses light and creates a virtual image. The biconvex lens shape provides a wide field of view and clear, sharp images. The lenses are precisely measured and have a constant curvature. Concave lens: Place the concave side of the lens toward the object you want to disperse light from. Adjust the distance between the object and the lens until the desired level of dispersion is achieved. Convex Lens: Once you have determined the focal length, place the lens in front of the light source. Move the lens back and forth until the image of the object is focused on the screen or surface. Application: Biconcave lenses are used to disperse light. A biconvex lens is a type of lens that is thicker in the center than at the edges and is used to focus light. We can produce telescopes suitable for a variety of uses, including scientific experiments, photography, and optical instruments. Note: Biconcave lenses are often used in combination with other lenses to create specific optical effects. Handle carefully to avoid scratching or damaging the lens surface. A biconcave lens is used to disperse the light. A biconvex lens is a type of lens that is thicker in the center than at the edges and is used to focus light. We can produce telescopes suitable for a variety of uses, including scientific experiments, photography, and optical instruments. specification Color: Transparent Material: Glass Focal Length: 20 mm, 30 mm Overall Size: 90 x 75 mm, 60 x 75 mm (Outer Diameter*H) Packing List: 2 x Glass Lens advantage Made of good quality glass, which is durable, scratch resistant and provides excellent optical performance. The rounded edges are polished and are not easy to hurt your hands when assembling. Adopts a double concave shape that diffuses light and creates a virtual image. The biconvex lens shape provides a wide field of view and clear, sharp images. The lenses are precisely measured and have consistent curvature, ensuring consistent performance and results. instructions Concave lens: Place the concave side of the lens toward the object you want to disperse light from. Adjust the distance between the object and the lens until the desired level of dispersion is achieved. Convex Lens: After determining 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 on. Move the lens back and forth until the image of the object is focused on the screen or surface. Note: Biconcave lenses are often used in combination with other lenses to create specific optical effects. Handle carefully to avoid scratching or damaging the lens surface.