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:
Jan. 14, 2014
Filed:
May. 20, 2009
Jin Ho Jung, Icheon-si, KR;
Jin Ho Jung, Icheon-si, KR;
Other;
Abstract
The present invention relates to an optical component for a maskless exposure apparatus, and more particularly, to a micro-prism array or a micro-mirror array which is an optical component capable of screening diffused light such that the image of a pixel of a digital micro-mirror display (DMD) formed by a first image-forming lens in the maskless exposure apparatus has no influence on the image of a neighboring pixel and of totally reflecting the light after reflection or diffraction at the same time, thus improving exposure performance by using the quantity of light being transmitted without a loss and increasing numerical apertures (NAs) at the same time. The optical component is configured such that a micro-prism array with a plurality of micro-prisms or a micro-mirror array with a plurality of micro-mirrors is arranged in place of a micro-lens array of an exposure apparatus such that a light incidence portion is formed in a wide manner and a light exit portion is formed in a narrow manner, and light being transmitted is focused to increase the quantity of light.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile