TI DLP technology is revolutionizing industrial printing and production in three ways

To meet the increasing demands of industrial imaging and printing, manufacturing solutions must be able to generate complex, high-resolution 2D images with consistent quality at extremely fast speeds. DLP technology has been used in high-throughput 3D printing and printed circuit board (PCB) lithography using ultraviolet light sources. Now, the extended support for near-infrared (NIR) light sources brings the same advantages of fast printing speed, fine resolution and real-time adaptability, expanding industrial printing applications.

-Author: Texas Instruments Raecine Meza

To meet the increasing demands of industrial imaging and printing, manufacturing solutions must be able to generate complex, high-resolution 2D images with consistent quality at extremely fast speeds. DLP technology has been used in high-throughput 3D printing and printed circuit board (PCB) lithography using ultraviolet light sources. Now, the extended support for near-infrared (NIR) light sources brings the same advantages of fast printing speed, fine resolution and real-time adaptability, expanding industrial printing applications.

Recently, Texas Instruments has made a detailed interpretation of the latest digital micromirror device (DMD)-DLP650LNIR to solve the challenges of industrial imaging systems in three ways. The details are as follows:

1. DLP650LNIR supports high-power NIR lasers

Today NIR lasers are used in various industrial imaging applications, including selective laser sintering for 3D printing, laser marking, digital printing and laser ablation. These NIR laser-based imaging systems provide sufficient thermal energy to melt, ablate, or activate materials such as plastic or metal powders, inks and thermal coatings and substrates to create 2D patterns on the surface. To support a wider range of printed materials, the DLP650LNIR DMD is optimized to support near-infrared wavelengths from 950 to 1150 nm, and provides the highest optical power handling capability (up to 500 W/cm²) that TI has released so far.

TI DLP technology is revolutionizing industrial printing and production in three ways
Use DLP650LNIRDMD for NIR system settings

2. DLP650LNIR can provide 2D printing exposure

An example of an industrial imaging system is post-product marking used in the medical or food industry, where regulations require more information to be printed on each package to track its path through the supply chain. Digital marking solutions add unique patterns or images to each object in the later stages of the manufacturing process.

These systems require real-time customization and more complex information and graphics without affecting productivity goals. In existing laser marking systems, the laser beam can be manipulated point by point to produce a customized image on a thermal label or coating. But now the laser marking system can use DLP technology to thermally expose the 2D area at one time instead of point-by-point thermal exposure, so even when generating complex large codes or patterns, the marking rate (marking rate) remains constant. DLP650LNIR has more than 1 million micro-mirrors, which can simultaneously expose a large area to the laser, thereby printing finer details and arms and more consistent results than the existing technology.

3. DLP650LNIR provides a high degree of programming flexibility

Another example of an imaging system is a 3D printer that uses NIR lasers to sinter powder materials layer by layer into 3D objects. As the technology of 3D printing develops from rapid prototyping to true digital manufacturing, the need for strict control of the printing process, especially the thermal changes in the printing room, becomes more and more important. The fast switching time (microseconds) of the micro-mirror on the DMD can increase and change the laser intensity delivered to the printing surface. When used in conjunction with the digital controller of DLP650LNIR, it can be programmed in real time and provide custom gray-scale patterns to modulate the thermal energy of each pixel to achieve real-time correction of each printing layer. This speed and flexibility can provide reliable and precise sintering of the finished product, giving it a fine feature size and a robust internal mechanical structure.

DLP650LNIR provides the high speed and print consistency required for industrial-grade manufacturing and near infrared (NIR) laser imaging. DLP650LNIR expands the range of industrial printing applications that can use DLP technology, including selective laser sintering 3D printing, dynamic laser marking for thermal coatings and ink-based digital color printing, and materials scientists introducing new materials in these markets New technology that appeared at the time.

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