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公开(公告)号：US10928612B1
公开(公告)日：2021-02-23
申请号：US16690142
申请日：2019-11-21
Applicant: Young Optics Inc.
Inventor： Kai-Yun Chen , Hsin-Te Chen , Kuo-Chuan Wang
Abstract: A projection lens includes a first lens, a second lens, an aperture stop, a third lens, a fourth lens, a fifth lens, a sixth, and a concave mirror sequentially arranged from a minified side to a magnified side. An outer diameter of the second lens is less than an outer diameter of the first lens. An outer diameter of the fifth lens is greater than that of the fourth lens. An outer diameter of the sixth lens is less than that of the fifth lens. The first lens, the second lens, the aperture stop, and the third lens are fixed relative to the concave mirror and the fourth lens is capable of moving along an optical axis relative to the concave mirror when the projection lens is in focusing. The projection lens includes 9 to 30 lenses with refractive power. A projector using said projection lens is also provided.
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公开(公告)号：US20250013021A1
公开(公告)日：2025-01-09
申请号：US18764278
申请日：2024-07-04
Applicant: YOUNG OPTICS INC.
Inventor： Hsin-Te Chen
Abstract: The invention discloses a projection lens. The projection lens includes a first lens with refractive power, a second lens with refractive power, a third lens with refractive power, a fourth lens with refractive power and a fifth lens with refractive power in order from an magnification side to a reduction side of the projection lens. An aperture stop is disposed between the second lens and the reduction side, wherein a number of the lenses refractive power of the projection lens is less than 12, and at least one of the second lens, the third lens, the fourth lens and the fifth lens is a gradient index lens, which satisfies the condition of 0.6>T/D>0.035.
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Patent Agency Ranking
公开(公告)号：US20220229268A1
公开(公告)日：2022-07-21
申请号：US17577362
申请日：2022-01-17
Applicant: Young Optics Inc.
Inventor： Shuo-Chieh Chang , Ching-Lung Lai , Hsin-Te Chen , Kuo-Chuan Wang
Abstract: The disclosure provides a projection lens including a first lens set and a second lens set disposed sequentially from a magnified side to a reduced side. The first lens set and the second lens set are separated by a minimum inner diameter of a lens barrel. The first lens set includes 4 to 6 spherical lenses, and a refractive power of the first lens set is negative. The second lens set includes 4 to 6 lenses, where one of the lenses is an aspheric lens, and a refractive power of the second lens set is positive. A transmittance of the projection lens at a wavelength of 365 nm is greater than or equal to 75%.
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公开(公告)号：US10151904B2
公开(公告)日：2018-12-11
申请号：US15149865
申请日：2016-05-09
Applicant: Young Optics Inc.
Inventor： Chen-Cheng Lee , Hsin-Te Chen , Kuo-Chuan Wang
Abstract: One embodiment of the invention discloses an optical imaging device including an optical lens. The optical lens has N number of lenses, and the N number of lenses are divided into a first lens group and a second lens group and have at least three aspheric lenses. The first lens group is disposed between an object side and an image side, and the first lens group has (N/2)−1 piece of lens. The first lens group includes, in order from the object side, a first lens, a second lens and a third lens, and the second lens is an aspheric lens. The second lens group is disposed between the first lens group and the image side, and an aperture stop is disposed between the first lens group and the second lens group.
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公开(公告)号：US20170184823A1
公开(公告)日：2017-06-29
申请号：US14979515
申请日：2015-12-28
Applicant: Young Optics Inc.
Inventor： Sheng-Da Jiang , Hsin-Te Chen , Sheng-Tang Lai , Kai-Yun Chen
Abstract: An optical lens includes a first lens group and a second lens group. The first lens group is disposed between a magnified side and a minified side and has a negative refractive power. The second lens group is disposed between the first lens group and the minified side and has a positive refractive power. The optical lens is capable of forming an image at the magnified side. 0.52>F/H>0.46, where F is an effective focal length, and H is an image height.
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公开(公告)号：US20210072523A1
公开(公告)日：2021-03-11
申请号：US16690142
申请日：2019-11-21
Applicant: Young Optics Inc.
Inventor： Kai-Yun Chen , Hsin-Te Chen , Kuo-Chuan Wang
Abstract: A projection lens includes a first lens, a second lens, an aperture stop, a third lens, a fourth lens, a fifth lens, a sixth, and a concave mirror sequentially arranged from a minified side to a magnified side. An outer diameter of the second lens is less than an outer diameter of the first lens. An outer diameter of the fifth lens is greater than that of the fourth lens. An outer diameter of the sixth lens is less than that of the fifth lens. The first lens, the second lens, the aperture stop, and the third lens are fixed relative to the concave mirror and the fourth lens is capable of moving along an optical axis relative to the concave mirror when the projection lens is in focusing. The projection lens includes 9 to 30 lenses with refractive power. A projector using said projection lens is also provided.
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公开(公告)号：US10571669B2
公开(公告)日：2020-02-25
申请号：US14979515
申请日：2015-12-28
Applicant: Young Optics Inc.
Inventor： Sheng-Da Jiang , Hsin-Te Chen , Sheng-Tang Lai , Kai-Yun Chen
Abstract: An optical lens includes a first lens group and a second lens group. The first lens group is disposed between a magnified side and a minified side and has a negative refractive power. The second lens group is disposed between the first lens group and the minified side and has a positive refractive power. The optical lens is capable of forming an image at the magnified side. 0.52>F/H>0.46, where F is an effective focal length, and H is an image height.
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