Introductory Optical System Manufacturer,Supplier and Exporter in India
Product Code : EL-PL-12603
Jlab Export is a leading Introductory Optical System Manufacturer,and suppliers in India
Introductory Optical System (code EL-PL-12603) is a basic optics set whose holders, LED object and screen sit on an ordinary metre stick through ruler cut-outs, in place of a mounted optical bench. It includes four 50 mm lenses of +100, +200, −100 and −200 mm focal length, a two-sided semi-transparent screen and a pair of pinhole cards. JLab produces the system in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Model | SCK1053/060 |
| Lenses (50 mm diameter) | +100 mm and +200 mm double convex; −100 mm and −200 mm double concave |
| Holders | Single lens holder and double lens holder |
| Object | LED object, battery-powered (batteries included) |
| Screen | Double-sided, semi-transparent viewing screen |
| Pinhole cards | Pair of pinhole configuration cards |
| Mounting | Ruler cut-outs to rest on a standard metre stick |
| Documentation | Instructional guide and list of activities |
| Quality check | Each optical system is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Product code | EL-PL-12603 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Finding Focal Length on a Metre Stick
Stand the LED object at one end of the stick, put the +100 mm lens in the single holder and slide the screen until the image is sharp. The object and image distances, read straight off the stick, give the focal length from 1/f = 1/u + 1/v (real-is-positive convention); with the object 200 mm from the lens, the image forms 200 mm on the other side, inverted and the same size. The LEDs are bright enough to use with the room lights on, and the semi-transparent screen shows the image from either side of the bench.
Lens Pairs and Pinholes
The double holder carries two lenses together, so lens powers can be added (P = 1/f): the +100 mm and −200 mm lenses held close behave like a single +200 mm lens, which students can confirm by measurement. The pinhole cards form images without any lens at all, a direct way to show that light travels in straight lines. The guide’s list of activities sets out further experiments.
Related Optics Apparatus
- Pair of Metersticks — wooden 50 cm and 100 cm sticks to carry the parts.
- Optical Bench with 3 Stands — metal double-rod bench for more formal lens work.
- Laser Ray Box and Lenses — traces single rays through lenses and prisms on a mat.
More optics apparatus is in Physics Lab.
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Choose Add To Cart or use the contact page to send the number of sets and the delivery address for a quotation.
Last updated: 26 October 2026
