Optical Surface Profilers for Precision Metrology
Did You Know?
Related Resources
Frequently Asked Questions
What Are Optical Surface Profilers?
Optical Surface Profilers are non-contact instruments that use optical interferometry, confocal microscopy, or focus-variation techniques to measure 2D and 3D surface topography. These systems characterize roughness, waviness, step height, and form on reflective and semi-reflective surfaces without touching the sample.
By analyzing the interaction of light with the test surface, Optical Surface Profilers deliver quantitative height maps with nanometer to sub-micrometer vertical resolution. They are used for both R&D and production metrology across optics, semiconductors, precision machining, and thin-film applications.
Typical Specifications of Optical Surface Profilers
When reviewing Optical Surface Profilers on FindLight, you will typically encounter specifications such as:
- Vertical resolution: from sub-nanometer to tens of nanometers, depending on technique and objective.
- Lateral resolution: set by numerical aperture and wavelength, typically from <1 µm to several micrometers.
- Measurement range: vertical scan ranges from a few µm up to several mm; lateral fields of view from tens of µm to several mm.
- Surface types: polished optics, wafers, MEMS, structured surfaces, coatings, and rough machined parts.
- Scan and acquisition modes: phase-shifting interferometry, white light interferometry, confocal scanning, or focus-variation profiling.
- Data outputs: 3D height maps, line profiles, roughness parameters (Ra, Rq, Sa, Sq), step height analysis, and form error.
Use Cases for Optical Surface Profilers
Optical Surface Profilers are commonly used for optical component quality control (lenses, mirrors, windows), wafer and MEMS inspection, thin-film thickness and uniformity checks, precision tooling verification, and failure analysis of micro-structured surfaces. Non-contact operation is essential for fragile coatings, soft polymers, and micro-mechanical devices.
Buyer Guidance on FindLight
On FindLight, you can compare Optical Surface Profilers by vertical and lateral resolution, maximum sample size, scanning speed, supported surface types, and available analysis software. Evaluate whether you need interferometric or confocal-based Optical Surface Profilers based on surface roughness and reflectivity. Review datasheets, then contact manufacturers or distributors directly to request technical clarifications and custom configurations. All quote requests for Optical Surface Profilers can be made without registration, enabling fast supplier interaction and streamlined procurement.