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:
Dec. 21, 2010
Filed:
Sep. 15, 2006
Mikito Nakajima, Ina, JP;
Katsuyoshi Takeshita, Minowamachi, JP;
Yusuke Kutsukake, Minowa-machi, JP;
Jun Kinoshita, Ina, JP;
Shuji Naito, Minowamachi, JP;
Koichi Takahama, Kadoma, JP;
Hiroshi Yokogawa, Kadoma, JP;
Takeyuki Yamaki, Kadoma, JP;
Akira Tsujimoto, Kadoma, JP;
Ryozo Fukuzaki, Kadoma, JP;
Mikito Nakajima, Ina, JP;
Katsuyoshi Takeshita, Minowamachi, JP;
Yusuke Kutsukake, Minowa-machi, JP;
Jun Kinoshita, Ina, JP;
Shuji Naito, Minowamachi, JP;
Koichi Takahama, Kadoma, JP;
Hiroshi Yokogawa, Kadoma, JP;
Takeyuki Yamaki, Kadoma, JP;
Akira Tsujimoto, Kadoma, JP;
Ryozo Fukuzaki, Kadoma, JP;
Seiko Epson Corporation, Tokyo, JP;
Panasonic Electric Works Co., Ltd., Osaka, JP;
Abstract
A plastic lens includes: a plastic lens base material; a hard coat layer formed on the plastic lens base material; an organic antireflection film formed on the hard coat layer; and a primer layer between the plastic lens base material and the hard coat layer. The plastic lens base material contains at least a sulfur atom. The hard coat layer contains at least: fine metal oxide particles containing a titanium oxide having a rutile-type crystalline structure; and an organosilicon compound represented by a general formula of RSiX. The antireflection film contains a coating composition containing at least: an organosilicon compound represented by a general formula of XRSi—Y—SiRX; an epoxy group-containing organic compound containing one or more epoxy group in a molecule; and fine silica particles with average particle size of 1 to 150 nm, the antireflection film having a refractive index lower than that of the hard coat layer by 0.10 or more.