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. 25, 2020
Filed:
Jul. 05, 2017
Xyzprinting, Inc., New Taipei, TW;
Kinpo Electronics, Inc., New Taipei, TW;
Wei-Hua Lee, New Taipei, TW;
Yu-Hsien Syu, New Taipei, TW;
XYZprinting, Inc., New Taipei, TW;
Kinpo Electronics, Inc., New Taipei, TW;
Abstract
The disclosure provides a three-dimensional (3D) printing device including a tank, a forming stage and an irradiation unit. The tank is filled with a liquid forming material. The forming stage is movably disposed at the tank. The irradiation unit is disposed beside the tank and includes an image source and a projecting lens. The image source is used to emit an image beam. The image beam passes through the projecting lens to irradiate and cure the liquid forming material. An entrance pupil position of the projecting lens is ENP and 2000 mm≤ENP≤15000 mm. An exit pupil position of the projecting lens is EXP and 2000 mm≤|EXP|≤15000 mm.