Double Concave Spherical Lenses: -20D - Pack of 5
Product code: HE1008671
In stock
£7.39 exc. VAT
£8.87 inc. VAT
Product code: HE1008671
In stock
£7.39 exc. VAT
£8.87 inc. VAT
Free next day delivery
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Ideal for classroom demonstrations and experiments, these double concave spherical lenses help students explore light and optics in a hands-on way. Designed for secondary schools and colleges, they provide reliable performance for practical science lessons.
- Double concave, spherical lenses for optical experiments
- Diameter: 50mm
- Focal length: 50mm; Power: -20D
- Made from float glass with optically worked faces and ground edges
- Refractive index: approximately 1.52
- Supplied as a pack of 5
