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Knowledge Base

Tuokun Optoelectronics Tech Wiki

A systematic knowledge base on optical instruments — collimator working principles and selection, blackbody emissivity and calibration, optical lens grinding and polishing — with engineering cases and parameter comparisons to help engineers choose the right optical devices.

Published Articles

Published 2026-07-27

How a Collimator Works and Its Types: On-Axis, Off-Axis, Cassegrain, and Ritchey-Chrétien Explained

The core of collimator principle in one line: turn a focal point source into a parallel beam to simulate infinity. We break down four structural types and key selection parameters.

collimator principle off-axis collimator Cassegrain / RC
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More articles coming soon

  • How to Select a Collimator by Focal Length and Aperture (Article 02)
  • Blackbody Emissivity and Calibration Accuracy: 5 Key Factors (Article 03)
  • Cavity vs. Surface Blackbody Sources (Article 04)