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:
Jan. 07, 2020
Filed:
Sep. 27, 2017
Nidec Sankyo Corporation, Nagano, JP;
Tadashi Komiyama, Nagano, JP;
Tsuyoshi Hiraga, Nagano, JP;
NIDEC SANKYO CORPORATION, Nagano, JP;
Abstract
A lens unit with multiple lenses includes at least a glass lens arranged in an optical axis direction and a lens barrel holding the lenses. The lens barrel includes a lens holder holding the glass lens. An object side face of the lens holder is formed with multiple projecting parts supporting an adjacent lens which is adjacent to the glass lens on the object side. The projecting parts is structured as a distance determination part adjusting and determining a space distance between the glass lens and the adjacent lens by using a heat press process. A crushing amount of the projecting parts is determined with a lens face of the glass lens as a reference. The space distance between the glass lens and the adjacent lens is adjusted to restrain focus deviation due to a thickness error of the glass lens occurred at the time of molding the glass lens.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile