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Convex Lens
Convex Lens (Product Code: SCL-396/096) is a round, spherical glass lens used to converge light and form real images in school and college physics laboratories. Students use it to find focal length and trace image formation, and it is offered in exact focal lengths of 10 cm, 15 cm and 20 cm with a 2 inch diameter. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India, as part of its optics lab equipment range.
Specifications
| Parameter | Detail |
|---|---|
| Lens type | Convex (converging) |
| Material | Glass, spherical and optically worked |
| Shape | Round |
| Diameter | 2 inch (approx. 51 mm) |
| Focal lengths offered | 10 cm, 15 cm or 20 cm (exact focal length) |
| Finish | Ground edges, highly polished |
| Resistance | Chemical resistant and heat resistant |
| Intended use | Study of light principles in the lab or at home |
| Product code | SCL-396/096 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Convex Lens Used For?
The convex lens is the heart of the focal-length practical. Students first focus the image of a distant window or tree on a screen to get a rough value, then mount the lens on an optical bench and record object and image distances to calculate f from the lens formula. Moving the object from beyond 2F to inside F shows how the image changes from real and inverted to virtual and magnified.
The choice between the 10 cm, 15 cm and 20 cm versions depends on bench length and class level: a short focal length keeps images within a small bench, while a longer one spreads the distances out for easier measurement. Hold the lens by its ground edge, clean the polished faces with lens tissue, and keep it in a padded box so the surfaces stay scratch-free, as with all school physics lab equipment.
What to Specify When Ordering
- Focal length: 10 cm, 15 cm or 20 cm, or a mix of all three
- Quantity of each focal length, for example one lens per student group
- Whether matching concave lenses are needed for lens-combination experiments
- Delivery location and whether the order is for a school, college, dealer or importer
OEM Manufacturer
ScienceLab is the trading name of Jain Scientific Equipments Private Limited, and it is the OEM (original equipment manufacturer) of this convex lens. The lenses are made at the company's own licensed factory at Saha, Ambala, Haryana, India, rather than bought in from a trader, and go factory-direct to schools, colleges, institutions, dealers and importers. Repeat orders in any of the three focal lengths are handled by the manufacturer itself, so just ask us. Read more on the ScienceLab company profile.
Related Physics Lab Equipment
Items that complete a lens practical on the optical bench:
- Optical Bench with 3 Stands — mounting the lens, object and screen in line for focal-length readings
- Concave Lens — the diverging partner for lens-combination experiments
- Lens Holder with Base — holds a round lens upright on the bench top
- Meter Scale 100 cm — measuring object and image distances
Browse more optics apparatus in the Physics Lab category.
Frequently Asked Questions
What focal lengths is the Convex Lens available in?
The Convex Lens (SCL-396/096) is offered in exact focal lengths of 10 cm, 15 cm and 20 cm, all with a 2 inch (about 51 mm) diameter. State the focal length and quantity you need, since each value suits a different bench length and experiment.
What is the Convex Lens made of?
The Convex Lens is made of spherical, optically worked glass with ground edges and highly polished faces. The glass is described as chemical resistant and heat resistant, and the round 2 inch body is held upright in a lens holder on the optical bench.
How do students find the focal length with this Convex Lens?
Students first focus a distant object on a screen with the Convex Lens to get an approximate focal length. They then mount it on an optical bench, record object and image distances, and apply the lens formula to calculate a more accurate value.
How should the Convex Lens be cleaned and stored?
Clean the Convex Lens with a soft lens tissue or cotton cloth, holding it only by the ground edge, and avoid abrasive cleaners that could scratch the polished faces. Store each lens in a padded box or separate slot so lenses do not rub together.
Who manufactures this Convex Lens?
This Convex Lens is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), the OEM, at its own factory in Saha, Ambala, Haryana, India. Schools, colleges, dealers and importers buy it directly from the manufacturer rather than through a trader.
Can Convex Lenses be ordered in bulk for schools or export?
Yes, the Convex Lens can be quoted in class-set and bulk quantities for schools, colleges and dealers in India and international markets. Send the focal-length mix and quantities through the ScienceLab contact page, and the manufacturer will reply with a quotation.
Request a Quote
For a quotation direct from the manufacturer, send the focal lengths and quantities of Convex Lens you need through the ScienceLab contact page, or add the lens to the enquiry cart together with any optical bench items.
Last updated: 24 September 2026
