LT Profile Measurement

Laser topography (LT)

High-quality Topography
An abundance of analytical topography tools
Easy to operate, by a simple mouse click
User friendly, powerful and highly adaptive software
3D modeling, Cross sectioning, Cut and Slice
and many more
Windows ™ based operating system





Microptik Laser topography concept LT

Micro-optik is proud to present our new Digital Optical Microscopy system - DIMIC LT. This system is enhanced with state of the art laser technology to allow a high quality topography to be scanned from a micro object. The hybrid technology has been enhanced with a variety of powerful and useful analytical capabilities. The capabilities make a DIMIC LT an irreplaceable tool for scientists, as well as for engineers. The creation of a high accurate virtual model of the objects surface allows insight into the nature of the object which goes way beyond conventional microscopy inspection. The 3D model is generated in two steps. In the first step a laser scanner acquires an accurate 3D topography. In the second step, high resolution images are mapped and fitted on the topography. Proprietary illumination and image enhancement techniques are used for finalization. A key factor in the construction of a 3D topography is the camera. We use High Quality Camera's with UXGA resolution - 1/1.8" progressive scan Bayer mosaic colour sensor. The sensor has an array of 1624 (h) x 1232 (v) 4.4 μm square pixels. The camera has built in RGB filters for best available colour retrieving.

Illumination technology

Microptik Laser topography illumination principle

Special illumination technology can be provided complimentary to enhance the vision systems performance. For reflective samples it provides unique diffuse and homogeneous light.

Smart combination of light source, laser system and accurate mechanical position unit allows obtain unique structured mixtures of height and color information.
Line width - 30 μm or less;
Wavelength - 658 nm;
Power - 25 W/m2.

Microptik Laser topography setup example

A High resolution Megapixel lens are used to enhance quality of images from micron size objects to better determine their 2D and 3D nature. The combination of large zoom range 0.007-7000x (0.8 micron resolution), with large field of view, allows to reach a large dynamic magnification for a wide range of applications.

The sample is mounted on a precise positioning system. A computer with software offers complete digital control of any XYZ movement with steps of 0.22 ?m accuracy. USB 2.0 Plug & Play motors are used to generate high level of micro stepping (any micro step value from 2 to 500) and pulse rate support (800 Kbps).

Microptik Laser topography line principle

Scan system
Travel range - 15 cm;
Coefficient of friction - 0.09 typical;
Coefficient range - 0.04;
Repeatability (whole range) - 5 microns;
Straight line accuracy - 8 microns over entire travel distance;
Screw lead accuracy - 0.076 mm/25 cm.

XY Table provides exceptional rigidity;
dual, parallel bearing design for outstanding support of cantilevered loads, and a large work surface area.

Microobjects 3D modeling

Microptik Laser topography 3D model building

DIMIC™ LT uses a motorized axis to acquire area scans. A laser diode (line width - 30 μm) illuminates the profile on the sample. Collection of profiles creates 3D surface model. The camera acquires images which are mapped on the 3D profile. Proprietary image analysis algorithms assure a smooth and flawless merging of all images into a true color 3D display.

The 3D measurement functions allow the user to obtain an accurate and detailed profile of any target. For user convenience these profiles can be visualized in many different ways.

The 3D topography evaluation features of the DIMIC LT system additionally allow to measure any kind of 2D geometrical feature, using Point, Line, Polygon and Circle and other tools. It allows to performing measurements: between two points; consecutive line; perpendicular line; circle; between parallel lines; angle; polygon perimeter and area; XY coordinates of the objects; 3D profiles; colour profiles; etc. The profile features are convenient for quality control inspection. Profile can be obtained from any kind of measurement. All measurements and calculations can be exported as pictures or as standard MS Office files for further processing. For reversed engineering applications we provide tools to convert coordinates into Solid Works drawings.

Microptik Laser topography 3D model building software

Furthermore, the software allows mofometric features to be calculated of the objects particles/defects. 
Elongation - locates the centre of gravity, builds the longest axis in the particle and the axis orthogonal through the centre. The value of elongation is 100% minus the relation between the longest and the orthogonal axis. The elongation of a circle is 0, all other forms are >0 and <100%.
Roundness - locates the centre of gravity and builds the biggest inner and the smallest outer circle around it. The value of roundness is the relation between the inner and the outer circle. The roundness of a circle is 100%, all other forms <100%.
Compactness - is calculated as the relation between the objects area and its perimeter ([4*Π*S]/Π2). A perfect circle has a compactness of 100%.
Roughness - is the relation of the areas which can be built by circuits of 80% of sieve diameter and the built area. It is a characteristic number for all domes sticked out of a particle.
Convexity - builds a rubber band around the particle and determines the inner area. The value of convexity is the relation between the area of the particle and the built rubber band area. It is a characteristic number for all indentations of a particle.
And much more...

Topography analysis software

With morphometric analysis.

  • Measurements functions (distances, areas, angles).
  • Images optimizations and mathematical morphology functions.
  • Images calculations - adding, subtractions, division, multiplying.
  • Logical operations on images. Integrated analysis of the formulas.
  • Identification of the particles/defects and calculation the detailed 
    shape and size information (Perimeter, Area, Roundness, Elongation, 
    Compactness, Convexity).
  • Different charts and distribution plots.
  • 3D topography scan functions.
  • Different 3D visualizations and adjustments.
  • Unique 3D colored and textured modeling.
  • Height measurement functions and 3D models generation.
  • Export data to different standard formats.
  • Special functions and adjustments possible on demand.