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. 13, 2011
Filed:
Mar. 19, 2008
Yoichi Hachitani, Tokyo, JP;
Kazuo Tachiwana, Tokyo, JP;
Yoichi Hachitani, Tokyo, JP;
Kazuo Tachiwana, Tokyo, JP;
Hoya Corporation, Tokyo, JP;
Abstract
An on-vehicle camera lens glass material satisfies at least one of conditions in which a measurement result in water resistance based on a powder method prescribed by Japanese Optical Glass Industrial Standard is 1Class, a measurement result in Knoop hardness based on a measurement method prescribed by Japanese Optical Glass Industrial Standard is 6Class or higher, a measurement result in solarization based on a measurement method prescribed by Japanese Optical Glass Industrial Standard is 2% or less, and a measurement result in average linear expansion coefficient based on a measurement method prescribed by Japanese Optical Glass Industrial Standard is 100×10° C.or less.