Optimap PSD


Product Description

The Rhopoint Optimap has established a reputation within the automotive industry of providing the most  reliable and representative measurement.

For maximum consumer impact, high quality products require high quality finishes that are homogeneous, blemish and defect free. Surface finish is currently assessed subjectively by visual inspection or measured by instruments that do not capture a full picture of surface quality.

The Optimap™ is the first portable instrument to map and measure surface texture

Using an advanced measuring technique known as Phase Stepped Deflectometry (PSD) the Optimap™ is capable of making fast, objective, full field measurements over large areas requiring no movement over the surface.

Surface texture is used to quantify visible faults such as orange peel, waviness and DOI problems. It can also be used to identify local faults such as:

  • Orange Peel
  • Optimap display of paint fault - Orange Peel

  • Inclusions
  • Optimap display of paint inclusions

  • Blistering
  • Optimap display of paint fault - blistering

  • Overspray
  • Optimap display of paint fault - overspray

  • Sagging
  • Optimap display of paint sagging

In a single fast operation the Optimap™ maps the topography of a test surface displaying faults and texture in incredible detail. Mapped information is processed into objective surface measurements that can be used to effectively control product quality. This product can be compared to the Wavescan DOI.

How does it work?:

  • The Optimap can be battery or mains operated and is suitable for use in the laboratory or on the factory floor. It is operated by an intuitive touch screen operation and has a built in file system that allows measurements to be stored in an organized structure.
  • The Optimap can measure most surfaces from ultra matt to mirror finish.
  • When a measurement is initiated, an internal target screen displays a series of optical fringes. These fringes are reflected in the sample surface and captured by a camera. The typical acquisition time is < 3 seconds.
  • Using a technique called PHASE stepped deflectometry the instrument builds a 3D map of the sample surface. The typical calculation time is < 5 seconds.
  • The scale of the map is (curvatures m-1). The curvature map represents an exaggerated view of how the eye sees surface quality and defects
  • The results can be filtered to simulate different viewing distances from:
    Ta: High frequency texture which is visible from less than 1m up to Te: Waviness visible from 3m away from the surface.
  • Results can be shown as texture which is compatible with other waviness measuring instruments or curvatures, a traceable measurement m-1
  • The maps can be zoomed in and panned to view defects in high resolution. Stored results can be output to software for further analysis.


  • Rugged and accurate the Optimap™ is suitable for laboratory, factory or on-site inspection.
  • The soft touch measurement portal means the instrument can be used safely on the highest quality surfaces.
  • No movement required during measurement
  • Touch screen operation means operator training is minimal
  • Surface texture and defects can be assessed on a huge variety of surfaces: semi matt surfaces to polished mirrors, small & curved parts
  • A large area is mapped in a single operation (95 x 70mm), up to 100 times more representative than other texture scan instruments
  • Onscreen texture maps show orange peel, waviness and surface defects in incredible detail
  • Objective measurements can be displayed in traceable SI units or selected industrial scales
  • Data and results are fully compatible with other analytical techniques and third party software
  • Optional software allows sophisticated texture/fault analysis and report generation

Read more about Optimap measurement theory here…

Ondulo Reader Software:

Rhopoint Ondulo reader software features advanced data analysis and reporting.

  • Surface effects such as texture, flatness, number, size and shape of local defects can be identified, mapped and quantified

Layout 1


Technical specifications

Range Wavelength (mm) Curvature (m-1)
Ka 0.1 – 0.3 6.897
Kb 0.3 – 1.0 3.768
Kc 1.0 – 3.0 2.067
Kd 3.0 – 10.0 1.343
Ke 10.0 – 30.0 0.4810
    • Display: 6.5 inch Colour VGA TFT Touch Screen
    • Camera: 1.3 Megapixels, image resolution 1296 x 966
    • Measurement Area: 95mm x 70mm
    • Lateral Resolution: 75µm
    • Data storage: 6GB Compact Flash – 200 readings
    • Power: Lithium Ion Battery 4800mAH / 4-8 hour usage / charge
    • Weight: 3.0 Kg
    • Dimensions: H – 200mm, W – 218mm, D – 250mm
    • Better than 1%
  • Reproducibility: Better than 2%



Sample Applications

Rhopoint Optimap for measuring automotive finishes Automotive Rhopoint Optimap for measuring finishes in yachts Yacht Manufacturers
Rhopoint Optimap for measuring Composites Composites - Download application note (PDF) Rhopoint Optimap for measuring aircraft finish Aerospace
Rhopoint Optimap for measuring gloss on Smart Phones, tablet PCs and laptop covers Smart Phone, Tablet PC and Laptop Covers Rhopoint Optimap for measuring wood coatings Wood Coatings
Rhopoint Optimap for measuring Paints and Coatings Paints and Coatings Rhopoint Optimap for measuring metal polishing Metal Polishers
Rhopoint Optimap for measuring automotive re-finishes Automotive re-finish Rhopoint Optimap for measuring polished stone Polished Stone

Data Sheets

Optimap data sheet Click to download Rhopoint IQ datasheetDownload DatasheetClick to download Rhopoint IQ datasheet Click to download Rhopoint Optimap datasheetClick to download Rhopoint Optimap datasheet


Optimap Manual Click to download Rhopoint Optimap ManualClick to download Rhopoint Optimap ManualDownload ManualClick to download Rhopoint Optimap Manual
Ondulo Reader Manual Click to download Rhopoint Optimap Manual


Advanced software for the analysis of surface defects

analysis of surface defects

Automatically analyse defects in any image

In Curvature (m¯¹)

defect detection software curvature

or Altitude (μm)

defect detection software altitude

Capture all defects above and below user definable thresholds

defect detection software definable thresholds

Using user definable limits, select and display:-

  1. Number of defects
  2. Surface Area (mm²) – of defects above / below limits
  3. Aspect Ratio – the ratio of defect height and width
  4. Weighted Surface – weighted sum of each defect pixel
  5. Sign – (+/-) direction of defect in the surface
  6. Span Length - maximum length of defect
  7. X/Y Span Length – mid-length of defect in X/Y directions

Overlay defects analysis on original image

Overlay defects analysis 1
Overlay defects analysis 2

Drag and drop defect analysis into Microsoft Word for instant reporting

defect detection software 6



Optimap PSD Measurement principles and theory Click to download technical article
Technical article - Advanced characterisation of surface appearance Click to download technical article