# Vision and interferometry improve calibration of large monolithic mirrors

Source: [Physics News - Physics News, Material Sciences, Science News, Physics](https://phys.org/news/2026-11-vision-interferometry-calibration-large-monolithic.html) · 2026-11-13 · Physics
Page: https://themorning.science/story/vision-and-interferometry-improve-calibration-of-large-monolithic-mirrors-11438bbfd6cf5f93
Kind: research · Impact: low

## In brief

- Researchers at the Changchun Institute of Optics, Fine Mechanics and Physics of the Chinese Academy of Sciences developed a calibration method combining machine vision with interferometry.
- The method is reported in a study published in the journal Measurement.
- The method separates a mirror's fixed (static) error from its dynamic error for large monolithic mirrors.

## Why it matters

Accurate calibration of large monolithic mirrors matters for optical instruments such as telescopes, where surface errors limit image quality.

## Timeline

- 2026-11-13: Study reported by Physics News

## Coverage

- [Vision and interferometry improve calibration of large monolithic mirrors](https://phys.org/news/2026-11-vision-interferometry-calibration-large-monolithic.html) — Physics News - Physics News, Material Sciences, Science News, Physics, 2026-11-13

Tags: optics, interferometry, machine vision, mirror calibration, metrology

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science