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:
Jul. 21, 2020
Filed:
Apr. 24, 2019
Akihiro Moriya, Tokyo, JP;
Masayoshi Sugawara, Tokyo, JP;
Akihiro Moriya, Tokyo, JP;
Masayoshi Sugawara, Tokyo, JP;
MITSUMI ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A lens drive apparatus has: a magnet and a coil configured to displace the lens holder in a direction of an optical axis and a direction orthogonal to the optical axis in collaboration with each other. The coil includes first and second coils. The magnet includes first and second magnets. The first coil is disposed on an outer periphery of the lens holder. The first magnet, the second magnet, the second coil and a Hall device are each disposed to be spaced from the outer periphery of the lens holder at respective positions different from each other in the direction of the optical axis. Inner surfaces of the magnets at a side of the lens holder and outer surfaces of the magnets at an opposite side of the inner surfaces have reverse polarities, the inner surfaces have reverse polarities, and the outer surfaces have reverse polarities.