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:
Jun. 27, 2006
Filed:
Sep. 17, 2002
Hajime Yamanaka, Saitama, JP;
Hajime Yamanaka, Saitama, JP;
Fujinon Corporation, Saitama, JP;
Abstract
A molding die for an optical element with a lens-barrel in which the lens-barrel is set in the molding die includes a tubular guide die, a upper die and a lower die sliding in the guide die Also an optical raw material is placed in the lens-barrel and the optical element is sandwiched, heated and pressurized between the upper die having a transfer surface and the lower die having a transfer surface, thereby integrally forming the optical element in the lens-barrel. Outside diameter portions designed to be equal to the inner diameter of the guide die are provided for the upper die and lower die, wherein the outside diameter portion is fitted in the guide die so as to be able to slide only in the axial direction.