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:
Oct. 28, 2014
Filed:
Mar. 08, 2010
Jacobus Hubertus Theodoor Jamar, Vessem, NL;
Herman Hendrikus Maalderink, Nuenen, NL;
Andries Rijfers, Kamerik, NL;
Borgert Kruizinga, Zoetermeer, NL;
Jentske D. Kooistra, Delft, NL;
Jacobus Hubertus Theodoor Jamar, Vessem, NL;
Herman Hendrikus Maalderink, Nuenen, NL;
Andries Rijfers, Kamerik, NL;
Borgert Kruizinga, Zoetermeer, NL;
Jentske D. Kooistra, Delft, NL;
Abstract
The invention concerns an illumination system for use in a stereolithography apparatus, comprising a planar support supporting a two-dimensional array of individually controllable wide-angle light-emitting diodes (LEDs); and a multilens projector array arranged relative to the array, and adapted to project a focused image of the LEDs onto a work area. The multilens projector array is arranged to project light from the LED array having a light emitting edge area image spot size which is smaller than or equal to a light emitting central area image spot size.