Prism Scanning  


Executive Summary

Optimet’s ConoProbe MK10 with a 25 mm focal lens was used in the application of prism scanning. The tests were performed to demonstrate measurement capability. Four different samples were scanned using spray1 :  transparent prism, coated prism and two circle samples  

1. Optimet's Advantages over Other Technologies:

1. Optimet’s technology is most suitable for roughness measurements

2. Unique collinear technology

3. Capability to measure sharp angles in minimum clearance

4. High lateral resolution

5. High sampling rate with no need for averaging



2.Application Description

Scanning of four different samples using Optimet’s ConoProbe MK10 with a 25 mm focal lens.

Test settings:  
Measurement Rate (kHz)X‐Step (µm)Y‐Step (µm)Laser Power
Transparent prism92010010
Coated prism92010010
Circle samples (55% and 65%)930309



3. Results and Observations

Transparent Prism






Coated Prism








Circle Samples (55% and 65%)





4. Data

For 25mm and 50mm focal lenses:
Parameter Value
Reflective/Diffusive/Transparent/Translucent Transparent
Working Range (mm) 1.8/8
Precision (µm) 3/6
Stand Off (mm) 15/35
Max. Data Rate (KHz) 9KHz
Lateral Resolution  -
Z Resolution  -
Application Category -



Download Prism Scanning Scan file (pdf)


1 Optimet’s technology now has the ability to scan transparent objects without spray