公开(公告)号：US20240361574A1

公开(公告)日：2024-10-31

申请号：US18763511

申请日：2024-07-03

Applicant: Young Optics Inc.

Inventor： Ching-Sheng CHANG ,  Chia-Chen KUNG ,  Chiu-Jung LAI ,  Kuo-Chuan WANG

IPC: G02B13/00 ,  G02B9/10

CPC classification number: G02B13/003 ,  G02B9/10

Abstract: A low thermal-drift optical lens includes a first lens group, a second lens group and an aperture stop. The first lens group includes a first lens and a second lens, and the second lens group includes a third lens and a cemented lens. The aperture stop is disposed between the second lens and the cemented lens, and a lens with a refractive power of the low thermal-drift optical lens closest to the minified side has at least one inflection point. In an operating temperature range of −40° C. to 80° C., a thermal drift of the low thermal-drift optical lens relative to a focal plane at 25° C. is less than or equal to 10 um.

公开(公告)号：US20220342182A1

公开(公告)日：2022-10-27

申请号：US17721810

申请日：2022-04-15

Applicant: Young Optics Inc.

Inventor： Pei-Ching LIU ,  Kuo-Chuan WANG

IPC: G02B9/64 ,  G02B3/00 ,  G02B13/14

Abstract: A fixed-focus lens includes an anti-radiation first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens arranged in order in a direction. An aperture stop is disposed between the first lens and the fourth lens. A ratio of a lens diameter of the first lens to an overall length is within a range of 0.4 to 0.5, where the overall length is an axial distance between an outer surface of the first lens and an outer surface of the seventh lens. Each of the first lens to the seventh lens is a spherical glass lens.

公开(公告)号：US20170307862A1

公开(公告)日：2017-10-26

申请号：US15137985

申请日：2016-04-25

Applicant: Young Optics Inc.

Inventor： Ying-Hsiu LIN ,  Kuo-Chuan WANG

IPC: G02B15/177 ,  G02B13/04 ,  G02B13/00 ,  G02B27/00

CPC classification number: G02B15/177 ,  G02B13/0045 ,  G02B13/009 ,  G02B13/04 ,  G02B15/161 ,  G02B27/0025

Abstract: A zoom lens includes, in order from a magnified side to a minified side, a first lens group, an aperture stop, and a second lens group. The second lens group has at least one aspheric surface. The zoom lens satisfies the conditions: 0.1

公开(公告)号：US20190079275A1

公开(公告)日：2019-03-14

申请号：US15846776

申请日：2017-12-19

Applicant: Young Optics Inc.

Inventor： Sheng-Tang LAI ,  Kuo-Chuan WANG ,  Yuan-Hung SU

IPC: G02B13/16 ,  G02B9/60 ,  G02B13/18 ,  G02B27/42

Abstract: An optical lens includes five aspheric lenses and an aperture stop. The five aspheric lenses are, arranged in order from a first side to a second side, a first lens, a second lens, a third lens, a fourth lens and a fifth lens, and the aperture stop is disposed between the first lens and the second lens. An image height at the image plane is denoted as H, the image height is equally divided into ten sections to from ten height positions 0.1H, 0.2H, 0.3H, 0.4H, 0.5H, 0.6H, 0.7H, 0.8H, 0.9H and 1H. Chief rays traveling through the optical lens and to the ten height positions respectively form ten angles with respect to a normal of an image plane, and each of the ten angles is smaller than 10 degrees.

公开(公告)号：US20180164555A1

公开(公告)日：2018-06-14

申请号：US15670493

申请日：2017-08-07

Applicant: Young Optics Inc. ,  NALUX CO., LTD.

Inventor： Yuan-Hung SU ,  Sheng-Tang LAI ,  Kuo-Chuan WANG ,  Norihisa SAKAGAMI

IPC: G02B15/16 ,  G02B15/177

Abstract: An optical lens includes a first lens group with negative refractive power, a second lens group with positive refractive power, and an aperture stop disposed between the first lens group and the second lens group. A total number of lenses in the first lens group is less than three, and a total number of lenses in the second lens group is less than five. The second lens group includes a first lens, a second lens and a third lens arranged in order in a direction away from the aperture stop. Each of the first lens and the second lens is an aspheric lens, and one of the first lens and the second lens has a diffractive optical surface.

公开(公告)号：US20180252900A1

公开(公告)日：2018-09-06

申请号：US15910918

申请日：2018-03-02

Applicant: YOUNG OPTICS INC.

Inventor： Hung-You CHENG ,  Kuo-Chuan WANG ,  Yu-Hung CHOU

IPC: G02B15/14 ,  G02B9/10 ,  G02B13/18

CPC classification number: G02B15/14 ,  G02B9/10 ,  G02B13/18 ,  G02B15/177

Abstract: A zoom lens includes a first lens group with a negative refractive power, a second lens group with a positive refractive power, and an aperture stop disposed in and movable with the second lens group. Each of the first lens group and the second lens group moves individually. The zoom lens further includes a doublet lens disposed on a first side of the aperture stop and between the first lens group and the aperture stop, and at most two lenses including at least one aspheric lens are disposed on a second side of the aperture stop.