What is the white light scanning system?

What is the white light scanning system?

A white light scanner (WLS) is a device for performing surface height measurements of an object using coherence scanning interferometry (CSI) with spectrally-broadband, “white light” illumination. For large-scale non-interferometric measurement systems, see structured-light 3D scanner.

What is the function of white light scanning system?

What is white light scanning? White light 3d scanning is a type of non-contact metrology that leverages white light to produce highly accurate measurements. White light scanning enables highly accurate 3D models of physical objects to be created quickly and with a high level of precision.

How does structured light 3D scanning work?

The Mechanics of Structured-Light 3D Scanning The light source projects a series of patterns onto the object, usually in the form of multiple parallel beams. The patterns become distorted when projected onto the object’s surface. The scanner captures these images using the cameras.

What light source does a 3D scanner rely on?

Triangulation based 3D laser scanners are also active scanners that use laser light to probe the environment. With respect to time-of-flight 3D laser scanner the triangulation laser shines a laser on the subject and exploits a camera to look for the location of the laser dot.

What is a blue light 3D scanner?

Structured light 3D scanning is a non-contact, optical scanning technology that utilizes light patterns to take measurements of a part and produce a 3D scan. The resulting scans can be used for quality assurance, quality control, and reverse engineering.

What is the light used in scanner?

The lamp in newer scanners is either a cold cathode fluorescent lamp (CCFL) or a xenon lamp, while older scanners may have a standard fluorescent lamp. The entire mechanism (mirrors, lens, filter and CCD array) make up the scan head.

Which is the first step of 3D scanning process?

The 3D Scanning Process: Specialized software drives the laser probe above the surface of the object. The laser probe projects a line of laser light onto the surface while 2 sensor cameras continuously record the changing distance and shape of the laser line in three dimensions (XYZ) as it sweeps along the object.

How does 3D scanning technology work?

3D Laser Scanning is a non-contact, non-destructive technology that digitally captures the shape of physical objects using a line of laser light. 3D laser scanners measure fine details and capture free-form shapes to quickly generate highly accurate point clouds.

How does structured light calculate 3D measurements?

Structured light refers to the process of projecting predesigned known patterns on the scene and capturing the images to calculate the depth for 3D surface reconstruction. However, those techniques require to use precalibrated cameras to find the 3D world coordinates of the projected pattern.

Why blue and white light scanners are considered to be the most accurate among all reverse engineering scanners?

The data from blue light scanning yields a high-quality surface that is ideal for dimensional inspection. This information is kept by 3D Engineering Solutions and can be later used to extract further dimensions as needed.

What can you do with a 3D scanner?

3D scanners enable you to take a physical product, scan it into a digital format (e.g. the STL file format), and work with the digitized model to create prototypes that are then printed by 3D printers.

What’s the difference between white light and blue light?

Since white light scanning utilizes the entire visible spectrum, it is made of all the different wavelengths of visible light. On the other hand, a blue light scanner only works with one color of light, which possesses a short wavelength.

Which is the best white light 3D scanner?

Eva Lite is the budget version of the bestselling white light Artec Eva 3D scanner. It features the same accuracy specs, but with reduced functionality: Eva Lite has geometry only tracking and capture.

What can white light scanning be used for?

For this reason, white light scanning is ideal for scanning components such as sheet metal parts, tools and dies, turbine blades, molded/cast parts, and intricate prototypes. And by using a non-contact process, data is collected efficiently with minimal setups.

How is light scanning used in 3D engineering?

Since the dense point cloud captured by a structured light scanner can be interpolated into a CAD model like other 3D digitizing methods used by 3D Engineering Solutions, our unique modeling expertise is key to harnessing this unique technology for your reverse engineering and metrology applications.

Why is blue light used for 3D scanning?

The narrow wavelength of blue light helps enable better filtering of interference from ambient light. ATOS technology based on blue light scanning enables users to quickly generate 3D blueprints of physical objects with a high level of accuracy.