LIQUID LENS AND IMAGING DEVICE

WIPO Patent Application WO/2010/032869

A1

Disclosed is a liquid lens that has a low modulus of volume change due to liquid swelling of a deformation film, has no liquid exudation, is chemically stable, and is capable of obtaining a large variable-focus range. The lens has a pair of transparent members (2), (3), at least one of which is formed with a deformation film which is capable of deformation, and a transparent liquid (4) which fills a sealed space (5) sandwiched between the pair of transparent members (2), (3), with the deformation film (3) and the liquid (4) being configured with the following combination of materials. (1) A fluorine-based elastomer film and a silicone oil which does not have an affinity for the fluorine-based elastomer film. (2) Preferably, a fluorine-based elastomer film and a silicone oil with a molecular weight of 500 or higher and a viscosity of 50 (25°C mm2/s) or greater. (3) Preferably, a fluorine-based elastomer film and a methylphenyl-based silicone oil or a dimethyl-based silicone oil with a molecular weight of 500 or higher and a viscosity of 50 (25°C mm2/s) or greater. (4) A polyurethane-based elastomer film and a dimethyl-based silicone oil.

JP2009192791	LIQUID CRYSTAL LENS
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JP2004341032	IMAGING UNIT AND IMAGING APPARATUS

TANAKA KAYOKO (JP)
KATO YOSHIAKI (JP)
MAEDA FUMISADA (JP)
SUZUKI AKIRA (JP)
SAKAIGAWA SACHIKO (JP)

PCT/JP2009/066712

March 25, 2010

September 16, 2009

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SONY CORP (JP)
TANAKA KAYOKO (JP)
KATO YOSHIAKI (JP)
MAEDA FUMISADA (JP)
SUZUKI AKIRA (JP)
SAKAIGAWA SACHIKO (JP)

G02B3/14

JP2002107678A	2002-04-10
JPH10206609A	1998-08-07
JP2005284066A	2005-10-13
JPH06258502A	1994-09-16
JPH0588004A	1993-04-09

TANABE, Shigemoto et al. (JP)
Tanabe Blessing machine (JP)

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