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:
Jun. 06, 2006
Filed:
Mar. 22, 2004
Gyoung IL Cho, Seoul, KR;
Dong Woo Gim, Gyoungnam, KR;
Cheong Soo Seo, Seoul, KR;
James Greenup Boyd, Brenham, TX (US);
Sang Hyune Baek, Suwon, KR;
Gyoung Il Cho, Seoul, KR;
Dong Woo Gim, Gyoungnam, KR;
Cheong Soo Seo, Seoul, KR;
James Greenup Boyd, Brenham, TX (US);
Sang Hyune Baek, Suwon, KR;
Angstrom Inc., Suwon, KR;
Stereo Display Inc., Fullerton, CA (US);
Abstract
There is a need for a small and fast optical zoom device that can change magnification. Conventional zoom devices require coupled mechanical motions to adjust the axial separations between individual or groups of elements in order to change the optical magnification. The mechanical motions decrease the speed of zooming, increase space and weight for zoom system, may induce unwanted jitter, and require large power consumption. In addition, the mechanical zoom system is restricted to magnifying the area on-axis. To solve problems of conventional zoom system, the zoom system utilizing one or more variable focal length micromirror array lenses without macroscopic mechanical motion of lenses is invented.