Polaroid Filter
Product Code : LSK-PL-10369
Polaroid Filter (SKU LSK-PL-10369) is a matched pair of polarising filters with printed scales, used to study how light transmission changes as one filter is turned over the other. Physics teachers use the pair in secondary-school and college optics lessons on polarisation. Science Lab Supplies manufactures the set at its factory on Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and sells it directly to schools, colleges, tender contractors and distributors.
Specifications
The set consists of two special Polaroid filters, each with a printed scale. One filter has a circular scale marked in degrees; the other carries a simple cross for aligning it over the first. The Polaroid film is 0.18 mm thick, and the rotation of one filter against the other is read directly on the scale.
| Parameter | Value |
|---|---|
| SKU | LSK-PL-10369 |
| Contents | Pair of Polaroid filters with printed scales |
| First filter | Circular scale marked in degrees |
| Second filter | Simple cross for alignment |
| Polaroid film thickness | 0.18 mm |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Polaroid Filter
The pair shows that light passing through one polarising filter becomes plane-polarised, and that turning a second filter over it changes how much light gets through. It suits the wave optics chapter of CBSE/NCERT Class 12 physics and introductory optics practicals in B.Sc. and diploma physics courses.
- Class 12 physics (Wave Optics): polarisation as evidence that light is a transverse wave.
- Reading the angle between the filters on the degree scale while the transmitted brightness changes.
- Showing that transmission falls to a minimum when the filters are crossed.
Standard Scope of Supply
Each set comprises two Polaroid filters: one printed with the circular scale in degrees and one printed with the alignment cross. The filters are used with a light source from the laboratory, which is not part of the set; any optional items appear separately on the quotation.
Packing, MOQ and Lead Time
Quotations can cover a single pair for a teacher's demonstration or enough pairs for every bench in an optics class. Each quotation from Science Lab Supplies sets out the packing, delivery time and price for the quantity requested, and other optics lab equipment for schools can be listed on the same quotation.
Holding an Importer-Exporter Code as a registered exporter, Science Lab Supplies can ship to buyers in Saudi Arabia, Oman, the Philippines, Nepal, Bangladesh and Zambia. To enquire, write through the contact page, add the pair to the enquiry cart, or look at the lab tender page for institutional purchasing.
Frequently Asked Questions
What does the Polaroid Filter pair demonstrate?
It demonstrates polarisation of light. As the upper filter is rotated over the lower one, the amount of light transmitted changes, and the angle of rotation is read on the degree scale.
How is the angle between the two filters measured?
One filter carries a circular scale marked in degrees and the other a simple cross. Laying the cross filter over the scale filter lets students read the rotary displacement directly.
Is Science Lab Supplies the manufacturer or a trader?
It is the manufacturer. The filter pairs are produced at the company's own factory in Saha, Ambala, India, so prices and delivery times are quoted by the maker itself rather than through an intermediary.
Can the filters be quoted for a whole class?
Yes. Give the number of pairs and the delivery location, and the quotation will state packing, delivery time and price for that quantity.
Related Optics Equipment
These items from the Physics Lab range extend a polarisation lesson into colour, diffraction and ray work, so a teacher can equip a complete light-and-optics bench from one source. Every item below can go on the same quotation as the Polaroid pair.
- Polarizing Filters — linear polarising filters in 35 mm square frames.
- Color Filter Set — six primary and secondary colour filters.
- Diffraction Gratings with Holder — gratings of 100, 300 and 600 lines/mm.
- Raybox with Accessories — light source with slit masks for ray work.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 25 September 2026
