Diffraction and Interference Study Kit - Teacher's Demonstration Model Manufacturer,Supplier and Exporter in India
Product Code : EL-PL-13525
Jlab Export is a leading Diffraction and Interference Study Kit - Teacher's Demonstration Model Manufacturer,and suppliers in India
Diffraction and Interference Study Kit - Teacher’s Demonstration Model (code EL-PL-13525) is a boxed teacher’s set for showing diffraction, Young’s interference and the paths of rays through the eye, built round a 650 nm red laser and a red-and-green multibeam laser. Ringed slit and hole tokens, a Fresnel lens and a magnetic eye kit complete it. JLab makes the kit in Ambala, India, and packs it in a foam-lined case.
Specifications
| Parameter | Detail |
|---|---|
| Red laser | 650 nm, class II, 1 mW, on a Ø10 rod with magnetic base plate; 5 V power supply |
| Fresnel lens | Included; transforms the laser beam into a plane beam |
| Ringed tokens | Token with 7 slots (7 lines); Young’s slits; token with diffraction and Young’s holes |
| Magnetic eye kit | 5 magnetic lenses, erasable A3 plate of the human eye, 4 magnets, erasable felt-tip pen |
| Multibeam laser | Red and green, class II: 4 red beams at 650 nm, 1 green beam at 535 nm; 5 x 1 mW laser diodes |
| Beam spacing | 17.5 mm |
| Multibeam fittings | Beam selection switch; magnetic base; 230 V to 4.5 V power supply included |
| Eye protection | Over-glasses for red laser protection, to EN208 |
| Storage | Case with captive lid and built-in hinged handle; foam insert with pre-formed cells |
| Quality check | Each kit 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-13525 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What the Slits and Holes Show
Shone through the Young’s slits, the red laser throws evenly spaced bright and dark fringes on a screen, because light from the two slits arrives in step at some points and out of step at others. For small angles the fringe spacing equals wavelength × screen distance ÷ slit separation, so pupils can check the 650 nm figure from a measured spacing. A single small hole gives a bright central disc ringed by fainter circles.
Ray Work with the Multibeam Laser and Eye Kit
The multibeam laser sends five beams 17.5 mm apart, and its switch chooses which are lit. With the A3 plate of the human eye and the magnetic lenses, the beams show where the eye brings rays to a focus and how an added lens moves that point; the erasable pen lets the teacher draw each ray path and wipe it off. Wear the over-glasses for the red-laser work and never look into a beam.
Related Optics Equipment
- Diffraction Grating — three mounted gratings of different line densities between glass plates.
- Optics Set OW1, Wave Optics — student set with a double-slit diaphragm, grating and polarization filters.
- Laser Ray Box and Lenses — laser beam source with lenses, a trapezoid prism, mirror and magnetic mat.
More optics apparatus for school and college teaching sits in Physics Lab.
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Last updated: 29 October 2026
