The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 2026
Filed:
Mar. 11, 2019
Planmeca Oy, Helsinki, FI;
Tuomas Myllylä, Helsinki, FI;
Tero Rakkolainen, Helsinki, FI;
Ville Vuorio, Helsinki, FI;
Jari Koponen, Helsinki, FI;
Lasse Toimela, Helsinki, FI;
PLANMECA OY, Helsinki, FI;
Abstract
A stereolithography apparatus comprises a fixed vat () or a holder for receiving a removable vat for holding resin for use in a stereolithographic 3D printing process, an optical radiator () configured to project a pattern upon a portion of said vat (), an optical imaging detector *(field of view, installed and directed so that said portion of said vat () and/or a surface onto which the projected pattern is reflected—is within said field of view when said optical imaging detector () is in an operating position, and a controller () coupled to said optical imaging detector () for receiving optical image data from said optical imaging detector (). Said controller () is configured to use said optical image data to calculate an amount of resin in said vat ().