Liquid lens having improved sealing structure

Optical: systems and elements – Lens – Fluid

Reexamination Certificate

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Details

C359S666000

Reexamination Certificate

active

07545574

ABSTRACT:
A liquid lens for adjusting a focal length by electro-wetting. A body houses a non-conductive fluid and a conductive fluid therein. A cover is capped on the body. A first adhesive bonds the body to the cover, the first adhesive curing rapidly. Also, a second adhesive bonds an outer periphery of the body to an outer periphery of the cover. The glass cover and the body are bonded across a large area by two types of adhesives with different compositions. This allows the lens manufactured to greatly withstand temperature and heat impact and stay durable in a high-temperature humid environment, thereby significantly elevating a quality of the final product.

REFERENCES:
patent: 2004/0227838 (2004-11-01), Atarashi et al.
patent: 2009/0021842 (2009-01-01), Berge et al.
patent: 2 887 637 (2006-12-01), None
patent: 2002-162506 (2002-06-01), None
patent: 2005/109074 (2005-11-01), None
patent: 2006/136613 (2006-12-01), None
patent: 2007/058451 (2007-05-01), None
KIPO Notice of Office Action issued in corresponding Korean Patent Application No. 10-2006-0036901 mailed on Apr. 20, 2007.
Extended European Search Report issued in corresponding European Patent Application No. 07250914.4, on Jul. 23, 2007.

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