Glass Lens Demonstration

Product Code : LSK-LAO-11147

Glass Lens Demonstration (SKU LSK-LAO-11147) is a set of six glass lenses — concave, convex, double concave, double convex, plano-concave and plano-convex — kept in a foam-lined wooden box. Teachers use it to show the main lens types side by side in lessons on refraction and image formation. The set is manufactured by Science Lab Supplies in its own works at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, which quotes schools, colleges, tender contractors and distributors directly.

Specifications

Every detail of the six-lens demonstration set appears in the table below. In short, each lens is 38 mm (1.5 inch) in diameter, optically true and finished with ground glass edges, and the six profiles sit in a wooden box with a foam lining that keeps them apart.

Applications and Experiments for the Glass Lens Demonstration Set

The set lets a class compare converging and diverging lenses directly: pupils feel the curved and flat faces, look through each lens and see which ones magnify and which ones shrink an image. It suits optics lab equipment for schools from middle classes up to Class 12 and introductory college physics.

• Class 10 light chapter: identifying convex and concave lenses and relating shape to converging or diverging action.
• Class 12 ray optics: finding the focal length of a convex lens, with the lens held upright in a Plastic Lens Holder V-shaped and the image caught on a Laboratory White Viewing Screen.
• Comparing plano and double-curved profiles to show how curvature changes focal length.
• Bench work for B.Sc. or diploma practicals on an Optical Bench Ordinary Physics Lab.

Standard Scope of Supply

Each set holds six 38 mm glass lenses — one concave, one convex, one double concave, one double convex, one plano-concave and one plano-convex — placed in a foam-lined wooden box. Lens holders, a screen and an optical bench are not part of the set and can be quoted separately.

Packing, MOQ and Lead Time

You may ask for one set for the teacher’s desk or several sets so that every group in a physics lab has its own. Science Lab Supplies prepares each quotation with the packing, delivery time and price for that number, and holders or screens can be added on the same quote.

With an Importer-Exporter Code on record, Science Lab Supplies can ship to buyers in Qatar, Sri Lanka, Vietnam, Malaysia, Peru and Egypt. Questions about lens sets can go in through the contact page; to build a list, use the enquiry cart, and for formal bids see the lab tender page.

Frequently Asked Questions

Which lenses are in the Glass Lens Demonstration set?
There are six: concave, convex, double concave, double convex, plano-concave and plano-convex. Each is 38 mm in diameter, optically true and has ground glass edges, so the most important lens types can be shown together.

Why are the edges ground?
Ground glass edges remove the sharp rim left after cutting, so the lenses are safer for pupils to pass round and less likely to chip when they are placed back in the foam-lined box.

Will the lenses fit standard lens holders?
At 38 mm diameter they fall within the 38–50 mm range of holders such as the Lens Holder With Finished wood and the V-shaped plastic holder, so they can be mounted for bench measurements.

Does Science Lab Supplies make the set itself?
Yes. The lens set is produced by Science Lab Supplies at its factory in Saha, Ambala, India, and your quotation is issued by the maker, with no trading company standing between you and production.

Related Lenses and Optical Bench Accessories

These lenses, holders and bench accessories extend the demonstration set into measured experiments: single 50 mm lenses with stated focal lengths, holders that keep a lens upright, a parallax pin for locating images and acrylic shapes for ray tracing, all of which can share one quotation.

• Convex Lens 50mm — equi-biconvex crown glass lens with a +100 mm nominal focal length.
• Concave Optics Experiment Lens — 50 mm biconcave crown glass lens rated at −100 mm.
• Acrylic Lens and Prism — seven lenses and prisms, 70 mm long and 25 mm thick, with a teacher’s guide.
• White Light Source Ray Box — demonstration board with five large lens shapes, including plano-convex and concave-convex.
• Lens Holder With Finished wood — hardwood base about 100 x 50 x 25 mm with a metal clamp for 38–50 mm optics.
• Wooden Lens Holder — 100 mm upright with a V-slot for lenses or mirrors up to 76 mm.
• Optics Experiment Parallax Pin — pair of 120 mm steel needles on 10 mm posts for locating real images.

Browse the full Light and Optics range, the Physics Lab range for further optics sets, or all physics lab equipment.

Last updated: 9 October 2026