Hand Lens Manufacturer,Supplier and Exporter in India
Product Code : EL-SLE-5722
Jlab Export is a leading Hand Lens Manufacturer,and suppliers in India
Hand Lens (code EL-SLE-5722) is a 50 mm bi-convex glass lens held in a metal rim, giving 3.5x magnification with a 10 cm focal length. Students use it to look closely at leaves, flowers, insects, soil and rock grains in school biology and science lessons, and it doubles as a convex lens for simple optics work. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Get a quote: use the Add To Cart enquiry button below, or send your quantity and destination through the contact page.
Specifications
| Parameter | Detail |
|---|---|
| Lens | Bi-convex glass lens |
| Mount | Metal rim |
| Lens diameter | 50 mm |
| Magnification | 3.5x |
| Focal length | 10 cm (100 mm) |
| Quality check | Each hand lens is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-SLE-5722 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Magnifiers?
| Model | Lens | Mount | Other listed details |
|---|---|---|---|
| This hand lens (EL-SLE-5722) | Bi-convex glass, 50 mm | Metal rim | 3.5x; focal length 10 cm |
| Hand Lens with Bakelite Handle | Optically worked lens; 50 mm, 75 mm and a larger size | Black plastic case | Three diameters in one listing |
| Magnifier Reading Glass 50mm | 50 mm | Plastic mount with handle | — |
| Tripod Magnifier | Two bi-convex lenses, 10X | Aluminium tripod; plastic holder with worm screw | Hands-free viewing |
| Folding Magnifier 10X | Plano-convex, extra white glass | Plastic holder, aluminium cover | Folds into its cover |
Choose this hand lens for general class use where a 3.5x view of a fairly large field is enough. The Bakelite-handle lens offers bigger diameters, the tripod magnifier frees both hands for sorting or dissecting, and the folding 10X magnifier gives a closer look at very small detail.
What Is the Hand Lens Used For?
A hand lens is the first magnifier most students use. In class 6 to 8 science it shows the parts of a flower, the veins of a leaf, seeds, small insects, soil particles and fingerprints, and in biology and geology field work it is used to examine specimens and rock grains on the spot. Because it is a converging lens with a known focal length, it also serves in class 10 optics to show a magnified upright image and to estimate focal length by focusing a distant window onto a screen. The listed 3.5x matches the simple magnifier formula M = 1 + D/f, with D = 25 cm and f = 10 cm.
Hold the lens close to the eye and bring the object towards it until it is sharp; the object must be nearer than 10 cm to give an enlarged, upright image. Never look at the sun through a lens, and do not leave it lying in sunlight, where it can focus enough heat to scorch paper. Wipe the glass with a soft lens cloth and store it in a drawer or case so the faces do not get scratched.
What to Specify When Ordering
- Quantity — the minimum order is 10 units; class sets are often ordered as one lens per student or per pair.
- Diameter and magnification — this listing is the 50 mm, 3.5x lens; ask if you need other sizes from JLab’s magnifier range.
- Related optics — add convex lenses or a dissecting microscope for work that needs higher magnification.
Frequently Asked Questions
What is the magnification of this hand lens?
3.5x. The 50 mm bi-convex glass lens has a focal length of 10 cm, which gives about three and a half times enlargement when the image is viewed at the normal near point.
What is the lens made of?
Glass. It is a bi-convex lens, curved on both faces, set in a metal rim.
How close should the object be?
Closer than the 10 cm focal length. Hold the lens near your eye and move the object until it is sharp; at that distance the lens forms an enlarged, upright image.
Can it be used as a convex lens in optics practicals?
Yes, for simple work. It is a converging lens with a 10 cm focal length, so students can focus a distant object on a screen and show a magnified virtual image.
How does it differ from the folding magnifier?
This lens gives 3.5x over a 50 mm field in a metal rim, while the folding magnifier is listed at 10X with a plano-convex lens that folds into its cover.
What are the minimum order and dispatch time?
The minimum order is 10 units, sold individually. Dispatch is usually within 7–10 working days after every lens is visually inspected; transit time for export depends on the destination.
What should an export quotation request include?
The quantity, destination country and port or city, delivery terms such as FOB or CIF, packing or labelling needs, and any tender reference.
Who manufactures this hand lens?
Jain Laboratory Instruments Pvt Ltd (JLab), at its works in Ambala, Haryana, India; JLab quotes for it directly as the manufacturer.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a school science and laboratory equipment manufacturer in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The hand lens is made at JLab’s own works, not bought from a trader, so schools, colleges, dealers and importers buy direct from the producer; each lens is visually inspected before dispatch, and repeat orders are handled by the manufacturer. JLab exports worldwide and ships to buyers in every region — for example Kyrgyzstan in Central Asia, Namibia in Southern Africa, Croatia in Southern Europe, Bhutan in South Asia and Papua New Guinea in Oceania. The JLab lab tenders page has information for tender purchases.
Magnifiers and Optics
- Hand Lens with Bakelite Handle — a hand lens in a black plastic case, in three diameters.
- Tripod Magnifier — a 10X magnifier on an aluminium tripod for hands-free viewing.
- Folding Magnifier 10X — a pocket magnifier with a plano-convex lens and protective cover.
- Convex Lens — converging lenses in several focal lengths for optics practicals.
- Dissecting Microscope — a low-power microscope for viewing specimens while dissecting them.
More teaching equipment is in the School Lab Equipment range.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button on this page, or send the quantity (minimum 10 units), any other magnifiers or lenses you need, and your delivery location through the contact page.
Last updated: 4 October 2026
