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US 12,491,682 B2Granted
Heating devices for three-dimensional printers
AssigneePeridot Print LLC
InventorsArnau Codina Saborit, Daniel Pablo Rosenblatt, Ferran Esquius Berengueras
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Abstract
According to an example, a heating device comprises a plurality of light emitting arrays to emit a respective irradiance associated with a calibration profile and a power source electrically connected to the plurality of light emitting arrays, wherein the irradiances emitted by the plurality of light emitting arrays result in a substantially spatially uniform irradiance towards a target surface.
Claims12
A three-dimensional printing system comprising:
- a build chamber to receive a powder bed that, when present, forms a base of the build chamber;
- a heating device to emit a uniform irradiance profile towards the powder bed, the heating device comprising:
- a plurality of light emitting modules arranged in a plurality of regions, wherein each region comprises a number of light emitting modules based on a contribution of the region to the uniform irradiance profile, wherein for each region, the light emitting modules are arranged in a respective set of parallel strings having a respective common voltage drop value, and
- a power source electrically connected to the sets of parallel strings;
- and
- a controller to control the power source to selectively supply a respective electric current to each set of parallel strings based on a number of parallel strings of the region, the contribution of the respective region to the uniform irradiance profile, and the respective common voltage drop value for the region.
3 more elements
A method for operating a three-dimensional printing system, comprising:
- operating a build chamber that receives a powder bed that, when present, forms a base of the build chamber;
- operating a heating device that emits a uniform irradiance profile towards the powder bed,
- wherein operating the heating device comprises:
- arranging a plurality of light emitting modules in a plurality of regions, wherein each region comprises a number of light emitting modules based on a contribution of the region to the uniform irradiance profile, wherein for each region, arranging the light emitting modules in a respective set of parallel strings having a respective common voltage drop value, and
- connecting a power source electrically to the sets of parallel strings;
- and
- controlling, by a controller, the power source to selectively supply a respective electric current to each set of parallel strings based on a number of parallel strings of the region, the contribution of the respective region to the uniform irradiance profile, and the respective common voltage drop value for the region.
4 more elements
Dependencies are inferred from the claim text.