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Prism, Borosilicate Glass
Prism, Borosilicate Glass (Product Code: SLE/PHY/113) is an optically worked equilateral prism used on a spectrometer to measure refractive index and study the dispersion of light in college and senior school physics laboratories. It measures 32 x 32 mm, has two polished faces and is listed as crown glass with a refractive index of 1.51. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Material | Borosilicate glass |
| Glass type and refractive index | Crown, R.I. 1.51 |
| Shape | Equilateral triangle |
| Dimensions | 32 x 32 mm |
| Surfaces | Optically worked; two faces polished |
| Intended use | With a spectrometer |
| Product code | SLE/PHY/113 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Borosilicate Glass Prism Used For?
On a spectrometer table, the prism's two polished faces act as the refracting surfaces. Students first measure the angle of the prism using reflections from those faces, then rotate the table to find the angle of minimum deviation for a spectral line. From these two angles the refractive index follows from n = sin((A + Dm)/2) / sin(A/2), the standard prism spectrometer practical in India.
With a sodium or mercury source, the same set-up shows dispersion: each colour leaves the prism at a slightly different angle, so the refractive index can be measured for several lines and plotted against wavelength. Hold the prism by its unpolished face or edges, set the polished faces towards the collimator and telescope, and clean it only with a lens tissue or soft cloth.
What to Specify When Ordering
- Number of spectrometer stations to equip with a prism.
- Refractive index required — this prism is listed at 1.51 (crown).
- Whether the spectrometer and a spectral lamp supply should also be quoted.
OEM Manufacturer
Jain Scientific Equipments Private Limited, known by its brand ScienceLab, manufactures this borosilicate prism as the OEM at its licensed factory in Saha, Ambala, Haryana, India. Physics departments and optics dealers get the prism direct from the maker, and matching prisms for extra spectrometer stations can be requested the same way. See the company profile for details of the business.
Related Physics Lab Equipment
Instruments and accessories for spectrometer work with this prism:
- Spectrometer — the instrument this prism is intended for.
- Spectral Lamp Power Supply with Lamp Holder — powers the light source for line spectra.
- Prism, Clear Glass — a larger 60-degree prism for school dispersion work.
- Microfiber Lens Cloth — cleans the polished faces safely.
Explore more optics apparatus in our Physics Lab Equipment category.
Frequently Asked Questions
What is the refractive index of the Prism, Borosilicate Glass?
The Prism, Borosilicate Glass is listed as crown glass with a refractive index of 1.51. Students can check this value themselves on a spectrometer by measuring the angle of the prism and the angle of minimum deviation.
What size is the prism, and which faces are polished?
The Prism, Borosilicate Glass is an equilateral triangle measuring 32 x 32 mm, with two faces polished and optically worked. The polished faces are the refracting surfaces, so place them towards the collimator and telescope of the spectrometer.
Will the prism fit my spectrometer?
The Prism, Borosilicate Glass is intended for use with a spectrometer and measures 32 x 32 mm. If your prism table has limited space or a particular clamp, please share its dimensions through our contact page so we can confirm the fit before you order.
How should the prism be cleaned?
Clean the polished faces of the Prism, Borosilicate Glass with a lens tissue or soft microfibre cloth, holding it by the edges or the unpolished face. Avoid touching the refracting faces, as fingerprints scatter light and blur the spectral lines seen in the telescope.
Who manufactures this prism?
The Prism, Borosilicate Glass is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), the OEM, at its own factory at Saha, Ambala, Haryana, India. Colleges, schools, dealers and importers can order it direct from the manufacturer.
Can a calibration certificate be supplied?
A prism such as the Prism, Borosilicate Glass is an optical component rather than a calibrated instrument. If your purchase rules require a test report or certificate of any kind, please discuss it with us through the contact page before ordering.
Request a Quote
Ask ScienceLab for a manufacturer's quotation on the Prism, Borosilicate Glass, or add it to the enquiry cart with your spectrometer order.
Last updated: 24 September 2026
