公开(公告)号：US20190187402A1

公开(公告)日：2019-06-20

申请号：US16282326

申请日：2019-02-22

Applicant: FUJIFILM Corporation

Inventor： Tomonari MASUZAWA

IPC: G02B7/02

CPC classification number: G02B7/026 ,  G02B7/02

Abstract: A lens unit 10 includes: a second lens 14 that is received in a lens barrel 18; and a lens holding ring 20 that is formed in a shape of a ring, is fitted into the lens barrel 18, includes lens receiving portions 24AS formed on an inner peripheral surface 24A thereof at three or more different positions in a circumferential direction, and allows the second lens 14 to be fitted into the lens holding ring while the second lens 14 is received by the lens receiving portions 24AS.

公开(公告)号：US20220214519A1

公开(公告)日：2022-07-07

申请号：US17704397

申请日：2022-03-25

Applicant: FUJIFILM Corporation

Inventor： Tomonari MASUZAWA

IPC: G02B7/02 ,  G02B13/18 ,  G02B13/16 ,  B60K35/00

Abstract: A projection lens includes a lens that is made of a resin, a first holding frame that holds the lens, and a second holding frame that is not in contact with the lens and holds the first holding frame; and a thermal expansion coefficient of the first holding frame is higher than a thermal expansion coefficient of the second holding frame.

公开(公告)号：US20190101718A1

公开(公告)日：2019-04-04

申请号：US16087322

申请日：2017-03-09

Applicant: FUJIFILM Corporation

Inventor： Tomonari MASUZAWA ,  Daiki YOSHIDA ,  Kensuke MASUI

IPC: G02B7/02 ,  B60R25/30 ,  H04N5/225

Abstract: A lens unit is provided that includes: a first lens that is housed inside a lens-barrel, the first lens including a first lens section and a first flange section that juts out from the first lens section in a direction orthogonal to an optical axis direction; a second lens that is housed inside the lens-barrel further toward an imaging plane side than the first lens, the second lens including a second lens section and a second flange section that juts out from the second lens section in a direction orthogonal to the optical axis direction; and a spacing ring that is sandwiched between the first lens and the second lens and that defines a spacing between the first lens and the second lens, the spacing ring includes a main body disposed between the first flange section and the second flange section in the optical axis direction, first protrusion portions that protrude in the optical axis direction from an object side of the main body, and second protrusion portions that protrude in the optical axis direction from the imaging plane side of the main body and are disposed offset with respect to the first protrusion portions when projected along the optical axis direction.