digital micromirror device (dmd work principle

In viewing the fact that conventional laser confocal measurement method not only easily encounters undesired irregular scattering problems, but also lack scanning efficiency due to its single-point type measurement, the newly developed automatic surface profilometer deploys a DMD chip to project spatially encoded digital fringe patterns with dynamic light intensity, onto the object to obtain.

A novel digital fringe pattern design with adaptive sinusoidal intensity modulation was developed for active fringe projection, to obtain optimized depth resolution with a micrometer lateral resolution in confocal measurement.

Some of semiconductor components have been measured to attest the feasibility of the developed approach.

Hence, its highly essential to familiarise yourself with each of these technologies to decide what works best for you.

In this particular blog post, we will explain everything there is to know about a DLP 3D printer.

Its technology centres around vat polymerisation, where a liquid photopolymer resin is used and solidified when exposed to light.

On the one hand, weve got Stereolithography (SLA), while on the other hand we also have Digital Light Processing (DLP).

The end result one can expect is a 3D layer, that is from from tiny rectangular cubes called voxels.

In this case, the laser is aimed towards two mirror galvanometers so that the light falls on the right coordinates.

The light is pointed upwards, and then the layer of the resin is cured.

In the past, this kind of technology was still very new and as a result, things were more complex and the price point was higher.

Nowadays, we have compact versions of SLA and DLP 3D printers that produce an array of materials at cost-effective prices.

In the next section, well be mainly focusing on how a DLP 3D printer works, whilst also highlighting a few differences between SLA and DLP technologies.

Like their SLA predecessors, DLP 3D printers are constructed around a resin tank that has a transparent bottom.

It also has a built-in platform that moves into the resin tank to eventually create your materials, layer by layer.

In a few words, this powerful mirror consists of other small mirror that are laid out in a matrix on a semiconductor chip.

These microscopic mirrors are then responsible for directing the light towards the bottom of the tank, to eventually identify the appropriate coordinates.

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Digital Micromirror Device (Dmd Work Principle