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:
Aug. 19, 2025
Filed:
Feb. 05, 2021
Carima Co., Ltd., Seoul, KR;
CARIMA CO., LTD., Seoul, KR;
Abstract
A 3D printer according to an embodiment of the disclosure includes: a resin tank accommodating a resin material; a molding plate movable up and down in the resin tank, and supporting a printed object formed by stacking a plurality of unit forming layers in sequence; an up-and-down movement actuator actuating at least one of the resin tank and the molding plate to move up and down; an exposure unit emitting light toward the molding plate; and a lens sheet including a first material layer including a molding surface facing the molding plate and a light receiving surface facing the exposure unit, disposed between the molding plate and the exposure unit, formed with a plurality of fine lens units for converging and diffusing the light from the exposure unit on one surface, and having a high refractive index, and a second material layer including a concavo-convex portion to be engaged with the fine lens unit of the first material layer, and having a low refractive index.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile