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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.:

US 7825363 B1

PDFFull Text
Expired
Date of Patent:
Nov. 02, 2010

Filed:

Jun. 06, 2008

Micro lens array unit having at least one of first and second micro lens arrays movable for changing the effective focal length of the micro lens array unit and liquid crystal display projection device using same

Applicants:

Chien-wen Hsu, Taipei Hsien, TW;

Po-lin Wang, Taipei-Hsien, TW;

Ching-te Chu, Taipei Hsien, TW;

Yu-shan Chou, Taipei Hsien, TW;

Inventors:

Chien-Wen Hsu, Taipei Hsien, TW;

Po-Lin Wang, Taipei-Hsien, TW;

Ching-Te Chu, Taipei Hsien, TW;

Yu-Shan Chou, Taipei Hsien, TW;

Assignee:

Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;

Attorney:

Zhigang Ma

Primary Examiner:

Que T Le

Int. Cl.
CPC ...
H01L 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An exemplary MLA unit for use in a projection device is disclosed. The projection device includes an LCD panel. The LCD panel includes a number of pixels each having an opening. The MLA unit includes a first MLA, and a second MLA. The first MLA includes a number of first micro lenses each configured for focusing incident light into the opening of a respective pixel of the LCD panel. The second MLA includes a number of second micro lenses each aligned with a respective first micro lens of the first MLA so as to form a micro lens system. The second MLA is movable so as to change the effective focal length of the lens systems.

Find Patent Forward Citations

Hsu, Chien-Wen. (2010). Micro lens array unit having at least one of first and second micro lens arrays movable for changing the effective focal length of the micro lens array unit and liquid crystal display projection device using same (U.S. Patent No. 7825363). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7825363

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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