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1.发明授权公开(公告)号：US06624950B2
公开(公告)日：2003-09-23
申请号：US10142864
申请日：2002-05-13
IPC分类号： G02B300
摘要： A projection lens system for enlarging and displaying on a screen an original image from an image generating source, includes a first lens having positive refractive power, a second aberration correction lens, and a third lens, positioned nearest the image generating source and having a concave lens surface thereof facing the screen. The third lens has a profile such that its refractive power at a marginal area adjacent a peripheral edge thereof is less than its refractive power at an area adjacent an optical axis of said projection lens system. The surface of the third lens facing the image generating source is in contact with a cooling liquid which cools the image generating source.
摘要翻译： 一种投影透镜系统，用于从屏幕上放大和显示来自图像产生源的原始图像，包括具有正屈光力的第一透镜，第二像差校正透镜和第三透镜，其位于最靠近图像生成源的位置并具有凹入 其透镜表面面向屏幕。 第三透镜具有轮廓，使得其邻近其周缘的边缘区域的屈光力小于在与所述投影透镜系统的光轴相邻的区域处的屈光力。 面对图像发生源的第三透镜的表面与冷却图像生成源的冷却液接触。
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公开(公告)号：US5946142A
公开(公告)日：1999-08-31
申请号：US764649
申请日：1996-12-11
摘要： When a projection lens system used for a rear projection type image display apparatus has a first lens group having an aspherical lens surface, a second lens group, a third lens group sharing almost all the positive refractive power of the overall system, a fourth lens group having an aspherical lens surface, a fifth lens group, and a sixth lens group including a lens having a profile of aspherical surface in which the concave surface thereof faces the screen side and the refractive power in the marginal area is weaker than the refractive power around the optical axis, a projection lens system having a large aperture ratio (low F-number), high focus, wide field angle, and sufficient marginal light amount ratio can be realized at a low cost. When a predetermined opening portion is formed in the projection lens and lens barrel, the lens elements are cooled by air suction and exhaust and the lowering of the lens performance due to temperature change can be prevented. When a flange is arranged in a suitable location of the opening portion, entry of a foreign material from the opening portion and light leakage from the inside are prevented and the contrast performance of the projection type image display apparatus can be prevented from lowering.
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3.发明授权公开(公告)号：US06396641B2
公开(公告)日：2002-05-28
申请号：US09793561
申请日：2001-02-27
IPC分类号： G02B900
摘要： When a projection lens system used for a rear projection type image display apparatus has a first lens group having an aspherical lens surface, a second lens group, a third lens group sharing almost all the positive refractive power of the overall system, a fourth lens group having an aspherical lens surface, a fifth lens group, and a sixth lens group including a lens having a profile of aspherical surface in which the concave surface thereof faces the screen side and the refractive power in the marginal area is weaker than the refractive power around the optical axis, a projection lens system having a large aperture ratio (low F-number), high focus, wide field angle, and sufficient marginal light amount ratio can be realized at a low cost. When a predetermined opening portion is formed in the projection lens and lens barrel, the lens elements are cooled by air suction and exhaust and the lowering of the lens performance due to temperature change can be prevented. When a flange is arranged in a suitable location of the opening portion, entry of a foreign material from the opening portion and light leakage from the inside are prevented and the contrast performance of the projection type image display apparatus can be prevented from lowering.
摘要翻译： 当用于背投型图像显示装置的投影透镜系统具有具有非球面透镜表面的第一透镜组，第二透镜组，共享整个系统的几乎全部正折射力的第三透镜组时，第四透镜组 具有非球面透镜表面，第五透镜组和第六透镜组，所述第六透镜组包括具有非球面形状的透镜，其中凹面朝向屏幕侧，并且边缘区域中的折光力弱于周围的折光力 可以以低成本实现光轴，具有大开口率（低F值），高焦距，宽视野角和足够的边缘光量比的投影透镜系统。 当在投影透镜和透镜镜筒中形成预定的开口部分时，透镜元件通过吸气和排气被冷却，并且可以防止由于温度变化引起的透镜性能的降低。 当凸缘布置在开口部分的适当位置时，防止异物从开口部分进入并从内部漏光，并且可以防止突起型图像显示装置的对比度性能降低。
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4.发明授权公开(公告)号：US06801366B2
公开(公告)日：2004-10-05
申请号：US10622642
申请日：2003-07-21
IPC分类号： G02B300
摘要： When a projection lens system used for a rear projection type image display apparatus has a first lens group having an aspherical lens surface, a second lens group, a third lens group sharing almost all the positive refractive power of the overall system, a fourth lens group having an aspherical lens surface, a fifth lens group, and a sixth lens group including a lens having a profile of aspherical surface in which the concave surface thereof faces the screen side and the refractive power in the marginal area is weaker than the refractive power around the optical axis, a projection lens system having a large aperture ratio (low F-number), high focus, wide field angle, and sufficient marginal light amount ratio can be realized at a low cost.
摘要翻译： 当用于背投型图像显示装置的投影透镜系统具有具有非球面透镜表面的第一透镜组，第二透镜组，共享整个系统的几乎全部正折射力的第三透镜组时，第四透镜组 具有非球面透镜表面，第五透镜组和第六透镜组，所述第六透镜组包括具有非球面形状的透镜，其中凹面朝向屏幕侧，并且边缘区域中的折光力弱于周围的折光力 可以以低成本实现光轴，具有大开口率（低F值），高焦距，宽视野角和足够的边缘光量比的投影透镜系统。
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5.发明授权公开(公告)号：US06243211B1
公开(公告)日：2001-06-05
申请号：US09495908
申请日：2000-02-02
IPC分类号： G02B300
摘要： When a projection lens system used for a rear projection type image display apparatus has a first lens group having an aspherical lens surface, a second lens group, a third lens group sharing almost all the positive refractive power of the overall system, a fourth lens group having an aspherical lens surface, a fifth lens group, and a sixth lens group including a lens having a profile of aspherical surface in which the concave surface thereof faces the screen side and the refractive power in the marginal area is weaker than the refractive power around the optical axis, a projection lens system having a large aperture ratio (low F-number), high focus, wide field angle, and sufficient marginal light amount ratio can be realized at a low cost. When a predetermined opening portion is formed in the projection lens and lens barrel, the lens elements are cooled by air suction and exhaust and the lowering of the lens performance due to temperature change can be prevented. When a flange is arranged in a suitable location of the opening portion, entry of a foreign material from the opening portion and light leakage from the inside are prevented and the contrast performance of the projection type image display apparatus can be prevented from lowering.
摘要翻译： 当用于背投型图像显示装置的投影透镜系统具有具有非球面透镜表面的第一透镜组，第二透镜组，共享整个系统的几乎全部正折射力的第三透镜组时，第四透镜组 具有非球面透镜表面，第五透镜组和第六透镜组，所述第六透镜组包括具有非球面形状的透镜，其中凹面朝向屏幕侧，并且边缘区域中的折光力弱于周围的折光力 可以以低成本实现光轴，具有大开口率（低F值），高焦距，宽视野角和足够的边缘光量比的投影透镜系统。 当在投影透镜和透镜镜筒中形成预定的开口部分时，透镜元件通过吸气和排气被冷却，并且可以防止由于温度变化引起的透镜性能的降低。 当凸缘布置在开口部分的适当位置时，防止异物从开口部分进入并从内部漏光，并且可以防止突起型图像显示装置的对比度性能降低。
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公开(公告)号：US6046860A
公开(公告)日：2000-04-04
申请号：US340198
申请日：1999-06-28
摘要： When a projection lens system used for a rear projection type image display apparatus has a first lens group having an aspherical lens surface, a second lens group, a third lens group sharing almost all the positive refractive power of the overall system, a fourth lens group having an aspherical lens surface, a fifth lens group, and a sixth lens group including a lens having a profile of aspherical surface in which the concave surface thereof faces the screen side and the refractive power in the marginal area is weaker than the refractive power around the optical axis, a projection lens system having a large aperture ratio (low F-number), high focus, wide field angle, and sufficient marginal light amount ratio can be realized at a low cost. When a predetermined opening portion is formed in the projection lens and lens barrel, the lens elements are cooled by air suction and exhaust and the lowering of the lens performance due to temperature change can be prevented. When a flange is arranged in a suitable location of the opening portion, entry of a foreign material from the opening portion and light leakage from the inside are prevented and the contrast performance of the projection type image display apparatus can be prevented from lowering.
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公开(公告)号：US10981382B2
公开(公告)日：2021-04-20
申请号：US16601929
申请日：2019-10-15
申请人： Takahiro Yoshida
发明人： Takahiro Yoshida
摘要： A liquid discharge head includes a plurality of nozzles from which a liquid is discharged, the plurality of nozzles arrayed in one direction, a plurality of pressure chambers communicating with the plurality of nozzles, respectively, the plurality of pressure chambers arrayed in the one direction, a common supply channel communicating with each of the plurality of pressure chambers, a common collection channel communicating with each of the plurality of pressure chambers, and a damper disposed outside an array of the plurality of pressure chambers in the one direction, and configured to form an inner surface of at least one of the common supply channel and the common collection channel.
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公开(公告)号：US10259231B2
公开(公告)日：2019-04-16
申请号：US15920612
申请日：2018-03-14
摘要： A liquid discharge head, includes a nozzle from which liquid is discharged, an individual chamber communicating with the nozzle, a supply channel communicating with the individual chamber, the liquid flowing through the supply channel in a first direction, and a filter disposed upstream of the supply channel, the liquid filtering through the filter in a second direction. The first direction intersects the second direction, and the supply channel includes an inlet disposed at a position overlapping the filter in the second direction.
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公开(公告)号：US20180178538A1
公开(公告)日：2018-06-28
申请号：US15852062
申请日：2017-12-22
CPC分类号： B41J2/18 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/14274 , B41J2/175 , B41J2/17509 , B41J2/2107 , B41J2002/14403 , B41J2202/04 , B41J2202/12 , C09D11/32 , C09D11/322 , C09D11/40
摘要： An inkjet printing device includes an ink containing a silver particle and water; and an ink discharging head including multiple nozzles to discharge the ink, individual liquid chambers communicating with the multiple nozzles, a common liquid chamber to supply the ink to the individual liquid chambers, a circulating flow path communicating with the individual liquid chambers, a common circulating liquid chamber communicating with the circulating flow path, and a pressure generator to apply a pressure to the ink in the individual liquid chambers, wherein the proportion of the silver particle to the ink is from 1 to 15 percent by mass.
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10.发明申请公开(公告)号：US20160185113A1
公开(公告)日：2016-06-30
申请号：US14976757
申请日：2015-12-21
申请人： Takahiro Yoshida , Tomohiko Kohda , Takeshi Shimizu , Kanshi Abe , Ryo Kasahara , Takayuki Nakai , Shiomi Andou
发明人： Takahiro Yoshida , Tomohiko Kohda , Takeshi Shimizu , Kanshi Abe , Ryo Kasahara , Takayuki Nakai , Shiomi Andou
IPC分类号： B41J2/14
CPC分类号： B41J2/1433 , B41J2/14201 , B41J2/14233 , B41J2002/14362 , B41J2002/14387 , B41J2002/14419 , B41J2202/12
摘要： A liquid ejection head is provided. The liquid ejection head includes at least two nozzle lines configured to have a plurality of nozzles for ejecting liquid disposed in respective lines, a plurality of individual liquid chambers configured to be in communication with corresponding nozzles of the nozzle lines, and at least two circulation channels corresponding to the nozzle lines, configured to be in communication with the individual liquid chambers. The at least two circulation channels are in communication with each other through a bridging channel disposed in a direction intersecting with the nozzle line direction, and the bridging channel and the circulation channels are disposed at different positions in a thickness direction of a member which forms the bridging channel and the circulation channels.
摘要翻译： 提供液体喷射头。 液体喷射头包括至少两个喷嘴线，其被配置为具有用于喷射设置在各个管线中的液体的多个喷嘴，多个单独的液体室，其被配置为与喷嘴管线的相应喷嘴连通，以及至少两个循环通道 对应于喷嘴线，其构造成与各个液体室连通。 所述至少两个循环通道通过沿与喷嘴线方向相交的方向设置的桥接通道彼此连通，并且所述桥接通道和所述循环通道设置在形成所述连接部件的部件的厚度方向上的不同位置 桥接通道和循环通道。
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