Acrylic Bi‑Convex Lens Block – 75mm Length × 100mm Radius

This premium Acrylic Bi‑Convex Block is designed for clear and accurate demonstrations of how lenses refract and focus light. Manufactured from high‑clarity optical‑grade acrylic, it provides excellent visibility and durability, making it ideal for hands‑on physics lessons and optical investigations in school science labs.

With a 75mm length and a 100mm radius, this bi‑convex block produces a converging effect when used with ray boxes, LED sources, or laser light. The smooth, polished surfaces help ensure minimal distortion, allowing students to observe how light bends through curved surfaces with precision and confidence.

Safer and more impact‑resistant than traditional glass lenses, this acrylic block is a robust, classroom‑friendly resource designed for repeated use in practical science activities.

Key Features

• Made from optical‑grade acrylic for excellent clarity
• Bi‑convex shape ideal for investigating converging lenses
• 75mm length with a 100mm radius
• Smooth, polished surfaces for clean, distortion‑free light paths
• Durable, lightweight, and safer than glass
• Perfect for refraction, focusing, and lens behaviour demonstrations

Ideal for School Science & Physics Lessons

This Acrylic Bi‑Convex Block is a versatile tool for KS3, GCSE, and A‑Level Physics, helping students explore essential optics concepts through practical investigation. Ideal for:

• Demonstrating light refraction and focusing effects
• Exploring converging lenses and image formation
• Creating practical ray diagrams using ray boxes
• Investigations into optical systems and vision
• Engaging students with hands‑on, visual learning activities