Spherometer-Disc Type Manufacturer,Supplier and Exporter in India
Product Code : SCL-PLE-11649
Quick Answer: The Spherometer-Disc Type measures the radius of curvature of lenses and mirrors using a central micrometer spindle and a 100-division circular scale, giving a least count of 0.01 mm.
Last updated: October 2026
Key Features
- Central micrometer screw spindle in stainless steel
- Brass/alloy disc plate with three-point perimeter contact
- Vertical linear scale with 1.0 mm pitch
- Circular head scale with 100 divisions
- Least count 0.01 mm
Technical Specifications
| Specification | Value |
|---|---|
| Mechanism | Micrometer screw with central spindle and circular scale |
| Material | Brass/alloy plate, stainless steel spindle |
| Linear scale | 1.0 mm pitch |
| Circular scale | 100 divisions, 0.01 mm |
| Contact points | Three-point perimeter contact |
| Least count | 0.01 mm |
| HS code | 9017.30 |
About This Product
Students rest the three contact points on a lens or mirror, bring the spindle down until it just touches the centre, and read the sagittal height from the two scales. Putting that height into the spherometer formula gives the radius of curvature, linking a hand measurement to the geometry used in optics.
Frequently Asked Questions
What is the least count of the Spherometer-Disc Type?
It is 0.01 mm: the vertical scale has a 1.0 mm pitch and the circular head carries 100 divisions.
Related: Physics Lab Equipment and Spherometer-Double Disc.
For a quotation on the Spherometer-Disc Type, contact Educational Instrument.
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