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. 24, 2010
Filed:
Dec. 20, 2006
Byung DO OH, Gyunggi-Do, KR;
Young Kyu Park, Gyunggi-Do, KR;
Byung Do Oh, Gyunggi-Do, KR;
Young Kyu Park, Gyunggi-Do, KR;
Saumsung Electro-Mechanics Co., Ltd., Suwon, KR;
Abstract
The present invention relates to a variable focus lens including a fluid chamber containing first and second fluids which are non-miscible and have different refractive indices, the fluid chamber having a plurality of protrusions formed along a circumference of one open end thereof. The variable focus lens also includes a transparent plate attached to the open end of the chamber via a sealing with a predetermined interval from the protrusions. The variable focus lens further includes a first electrode disposed inside the chamber to act on the first fluid and a second electrode disposed inside the chamber and is insulated from the first fluid. The invention allows an easy manufacturing process without bubble formation, and eliminates entry and formation of bubbles due to external changes such as in temperature and pressure, thereby allowing good performance of the lens regardless of external environmental changes.