Precision Transmittance Testing for High-Performance Lenses
At Avantier, we understand that the optical performance of a lens goes beyond shape and alignment — transmittance through the lens is critical to system efficiency, image quality, and application-specific performance. That’s why we’ve invested in professional-grade transmittance testing methods to verify that each lens meets rigorous optical transmission standards.
What Is Lens Transmittance Testing?
Transmittance measures how much light passes through a lens — calculated as a percentage of the incoming light that successfully exits the lens. This simple number plays a big role in image clarity, brightness, and color accuracy. Especially in high-precision applications such as machine vision, LIDAR, or infrared imaging, poor transmittance can compromise the entire optical system.
Key Takeaways:
- We offer precision lens transmittance testing using light intensity ratio and integrating sphere methods.
- These techniques ensure high optical performance, verifying brightness, color accuracy, and system efficiency across application-specific wavelengths.
- Our lab-built setups deliver reliable results for coated, curved, or multi-element lenses.
- While we don’t use high-speed laser transmittance meters, our capabilities meet demanding standards in automotive, machine vision, and scientific optics — all backed by meticulous quality control and expert engineering.
Our Testing Capabilities
We offer two highly reliable testing methods to measure lens transmittance:
1. Light Intensity Ratio Method
This method calculates transmittance by comparing laser light intensity before and after passing through the lens:
T = I / I₀ × 100%
- Advantages: Low-cost, fast, ideal for lab-based single-point checks
- Limitations: Sensitive to stray light and beam divergence
- Requirement: Highly stable laser source (intensity fluctuation <1%)
This setup is manually assembled by our experienced engineers, ensuring flexibility and customization across different wavelength bands.