Nuburu, Inc. (Centennial, CO)

This invention provides a printer system that uses a high-power, high-brightness visible laser source to improve resolution and print speeds. Visible lasers built on high-power visible diodes may be scaled by activating Raman scattering, resulting in a high-power, high brightness visible source.

Three-dimensional (3D) printing is a method of making a three-dimensional solid object from an electronic model. 3D printing typically occurs through an additive process where successive layers of materials are laid out in various shapes. 3D printing differs from traditional machining techniques that may require the removal of materials using techniques such as cutting or drilling (subtractive techniques).

Various additive processes are currently available. There are many additive techniques that are available. They differ in the way layers are created to form parts. To form layers, certain methods melt or soften materials. Selective laser melting (SLM) or direct-metal laser sintering(DMLS) and selective lasing (SLS) or fused modeling of positing (FDM), while other techniques can cure liquid materials, such as stereolithography (SLA). By using laminated object manufacturing (LOM), thin layers are cut to form and then joined (e.g. paper, polymer, metal).

The methods are able to create 3D objects. However, they have their limitations. Such approaches typically use laser light with wavelengths in the infrared (IR) portion of the electromagnetic spectrum–e.g.,wavelengths greater than 1 micrometer. It isn’t easy to create objects with submicron resolution. In addition, typical 3D printing systems are slow and incapable of producing objects with poor surface roughness. This results in 3D printed objects unsuitable for a variety of purposes.

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2. These terms allow you to find relevant Cooperative Patent Classifications at Classification Search Tool. If you’re unable to determine the correct classification to describe your invention, scan through the Schemas of classes (class schedules). Think about substituting the words you use to describe your invention if you don’t find any results in the Classification Text Search with synonyms similar to the words you used in step 1.

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