公开(公告)号：US06829086B1

公开(公告)日：2004-12-07

申请号：US10018384

申请日：2002-04-17

申请人： Daniel Gibilini

发明人： Daniel Gibilini

IPC分类号： G03B2160

CPC分类号： G03B21/625

摘要： The invention concerns a rear projection screen, comprising a support (22) with focusing elements such as microlenses (26) or lenticular elements, a holographic diffuser, and an opaque layer (36) with apertures (38) for allowing through the light focused by the microlenses. The light projected from the rear of the screen is concentrated by the microlenses (26) and passes through the opaque layer by the apertures (38). The holographic diffuser controls the directivity of the light. The incident light on the screen is absorbed by the opaque layer, such that the layer provides good transmittivity, high contrast, and controlled directivity owing to the holographic diffuser. The invention also concerns a method for making such a rear projection screen whereby the apertures in the opaque layer are formed by irradiating said layer or a preparatory material through the microlenses.

摘要翻译： 本发明涉及一种背投屏幕，其包括具有诸如微透镜（26）或透镜元件的聚焦元件的支撑件（22），全息漫射器和具有孔（38）的不透明层（36），所述孔（38）用于允许通过 微透镜。 从屏幕后方突出的光被微透镜（26）集中，并通过孔（38）穿过不透明层。 全息漫射器控制光的方向性。 屏幕上的入射光被不透明层吸收，使得由于全息漫射器，该层提供良好的透射率，高对比度和受控的方向性。 本发明还涉及一种用于制造这种后投影屏幕的方法，由此通过将微透镜照射所述层或预备材料来形成不透明层中的孔。

公开(公告)号：US06804061B2

公开(公告)日：2004-10-12

申请号：US10138112

申请日：2002-05-02

申请人： Hiroyuki Nemoto ,  Yoshiyuki Uemura

发明人： Hiroyuki Nemoto ,  Yoshiyuki Uemura

IPC分类号： G03B2160

CPC分类号： G02B3/0056 ,  B29C65/14 ,  B29C65/48 ,  B29C65/4835 ,  B29C65/4845 ,  B29C65/562 ,  B29C65/7808 ,  B29C66/1122 ,  B29C66/45 ,  B29D11/00278 ,  B29D11/00365 ,  B29L2011/0016 ,  G02B3/0062 ,  G02B3/0068 ,  G02B3/0075

摘要： A resin erecting lens array is fabricated by forming a coating of silicon dioxide compound on the surface of each of molded resin lens plates, forming an aperture stop for each micro-lens on the surface of each resin lens plate, applying an adhesive on end portions of each resin lens plate, spreading out the adhesive into the space between the resin lens plates being placed on top of one another, aligning an optical axis of each micro-lens on the resin lens plates, inserting heat-melting resin pins into the pin-insert holes of the resin lens plate, and melting at least one end of each resin pin to secure the resin lens plates together.

摘要翻译： 通过在模塑树脂透镜板的表面上形成二氧化硅复合物的涂层，在每个树脂透镜板的表面上形成每个微透镜的孔径光阑，在端部上施加粘合剂来制造树脂直立透镜阵列 在每个树脂透镜板上，将粘合剂分散在彼此顶部的树脂透镜板之间的空间中，将每个微透镜的光轴对准树脂透镜板，将热熔树脂销插入销 - 插入树脂透镜板的孔，并且熔化每个树脂销的至少一个端部，以将树脂透镜板固定在一起。

公开(公告)号：US06771419B1

公开(公告)日：2004-08-03

申请号：US09869498

申请日：2001-06-28

申请人： Shigekazu Yamagishi ,  Hiroshi Miyai ,  Hiroshi Yamaguchi ,  Kenichi Ikeda

发明人： Shigekazu Yamagishi ,  Hiroshi Miyai ,  Hiroshi Yamaguchi ,  Kenichi Ikeda

IPC分类号： G03B2160

CPC分类号： G03B21/625 ,  G03B21/62 ,  H04N9/31

摘要： Color lights from image projecting sections (207) that enlarge and project images of red, green and blue, respectively, are made incident on a transparent screen at different angles of incidence, so that image synthesis is carried out. The color lights projected are converted into telecentric light by a Fresnel lens (211), and after principal rays of the respective color lights are converted into substantially parallel rays by a color shading eliminating means (219) provided with lenticular lenses on both sides thereof, the rays are incident on a light diffusing means (224). The light diffusing means (224) is formed with a transparent substrate sheet and a plurality of transparent micro beads made to adhere onto a light-incident surface of the substrate sheet with an opaque adhesive. Image light passes through light transmitting portions between the substrate sheet and the micro beads to be diffused. This configuration enables to provide a rear-projection image display whose display images are hardly affected by external light, which has an increased angle of visibility, and which undergoes less color shading, without a decrease in light utilization efficiency.

摘要翻译： 来自图像投影部分（207）的颜色光分别以不同的入射角入射到透明屏幕上，从而进行图像合成。 通过菲涅尔透镜（211）将所投射的彩色光转换成远心光，并且通过在其两侧上设置有双凸透镜的着色消除装置（219）将各色光的主光线转换成基本平行的光线后， 光线入射到光漫射装置（224）上。 光扩散装置（224）形成有透明基板和多个透明微珠，其通过不透明粘合剂粘附在基片的光入射表面上。 图像光通过基片和微珠之间的透光部分进行扩散。 该配置能够提供一种背投影图像显示器，其显示图像几乎不受外部光的影响，外部光线具有增加的可见度角度，并且在不降低光利用效率的情况下经受较少的色彩遮蔽。

公开(公告)号：US06665118B2

公开(公告)日：2003-12-16

申请号：US09941385

申请日：2001-08-28

申请人： Hiroshi Yamaguchi ,  Kenichi Ikeda ,  Osamu Sakai ,  Toru Tatsumi ,  Satoshi Aoki

发明人： Hiroshi Yamaguchi ,  Kenichi Ikeda ,  Osamu Sakai ,  Toru Tatsumi ,  Satoshi Aoki

IPC分类号： G03B2160

CPC分类号： G03B21/62

摘要： A rear-projection screen 3, including at least a lenticular lens sheet 32 and a Fresnel lens sheet 31, is configured so that the lenticular lens sheet 32 contains, in a base material thereof made of a resin, light diffusing microparticles made of a resin having a refractive index different from a refractive index of the base material, and the light diffusing microparticles satisfy 0.5 &mgr;m≦&Dgr;N1×d1≦0.9 &mgr;m, where &Dgr;N1 represents a difference between a refractive index of the light diffusing microparticles and a refractive index of the base material of the lenticular lens sheet, and d1 represents an average particle diameter of the light diffusing microparticles. With this, a rear-projection screen with small wavelength dependency of diffusion characteristics can be provided utilizing only resins with general properties.

摘要翻译： 包括至少双凸透镜片32和菲涅耳透镜片31的背投屏幕3被构造成使得双凸透镜片32在其由树脂制成的基材中包含由树脂制成的光漫射微粒 具有与基材的折射率不同的折射率，并且光扩散微粒满足0.5μm<= DELTAN1xd1 <=0.9μm，其中ΔN1表示光扩散微粒的折射率与折射率之差 双凸透镜片的基材，d1表示光扩散性微粒的平均粒径。 由此，仅使用具有一般性能的树脂，可以提供具有扩散特性的波长依赖性小的背投屏幕。

公开(公告)号：US06603604B2

公开(公告)日：2003-08-05

申请号：US10237185

申请日：2002-09-09

申请人： Gyu-hwan Hwang

发明人： Gyu-hwan Hwang

IPC分类号： G03B2160

CPC分类号： G03B21/625

摘要： A screen of a projection television may include a Fresnel lens for converting an incident light beam emitted from an image source into a parallel beam, a lenticular lens formed by sequentially arranging multiple lens elements having a column shape parallel to one another for forming an image from the parallel beam output from the Fresnel lens and spreading the formed image, and a protective panel installed on the front surface of the lenticular lens for protecting the lenticular lens. The Fresnel lens may include a base substrate and a lens unit contacting one side of the base substrate, patterns having a saw-toothed shape formed on a surface of the lens unit facing a lenticular lens, and portions of each pattern corresponding to a sharp portion of a sawtooth may be a processed curved surface having a predetermined curvature.

摘要翻译： 投影电视机的屏幕可以包括用于将从图像源发射的入射光束转换为平行光束的菲涅尔透镜，通过依次布置具有彼此平行的列形状的多个透镜元件形成的双凸透镜，以形成图像 从菲涅尔透镜输出并平铺形成的图像的平行光束，以及安装在双凸透镜前表面上用于保护双凸透镜的保护面板。 菲涅尔透镜可以包括基底基板和与基底基板的一侧接触的透镜单元，在透镜单元的面对双凸透镜的表面上形成有锯齿状的图案，以及与锐度部分对应的每个图案的部分 锯齿波可以是具有预定曲率的加工曲面。

公开(公告)号：US06407860B1

公开(公告)日：2002-06-18

申请号：US09451775

申请日：1999-12-01

申请人： Kazuo Funazaki ,  Hideki Kobayashi

发明人： Kazuo Funazaki ,  Hideki Kobayashi

IPC分类号： G03B2160

CPC分类号： G03B21/625 ,  G02B3/08 ,  G02B27/60

摘要： Provided is a Fresnel lens sheet having the advantage of reducing unnecessary rays of light that may go out around the center area of the concentrically-configured Fresnel lens of the sheet. When it is combined with a lenticular lens sheet to construct a viewing screen, the screen has the advantage of preventing white spots from appearing around its center area. The Fresnel lens sheet is for screens for rear projection image displays, and is characterized in that the lens pitch in the center area of the concentrically-configured Fresnel lens of the sheet differs from that in the peripheral area thereof, and that the lens pitch in the center area is larger than that in the peripheral area.

摘要翻译： 本发明提供一种菲涅耳透镜片，其特征在于，可以减少不必要的光线，该光线可能会在片材的同心配置的菲涅尔透镜的中心区域附近出现。 当与双凸透镜片组合以构成观察屏时，屏幕具有防止在其中心区域周围出现白点的优点。 菲涅耳透镜片用于背投影像显示器的屏幕，其特征在于，片材同心配置的菲涅耳透镜的中心区域的透镜间距与其外围区域的透镜间距不同，透镜间距 中心区域大于周边区域。

公开(公告)号：US06278546B1

公开(公告)日：2001-08-21

申请号：US09283173

申请日：1999-04-01

申请人： Matthew B. Dubin ,  Brent D. Larson

发明人： Matthew B. Dubin ,  Brent D. Larson

IPC分类号： G03B2160

CPC分类号： G03B21/625

摘要： A screen assembly that combines an angle re-distributing prescreen with a conventional diffusion screen is disclosed. The prescreen minimizes or eliminates the sensitivity of the screen assembly to projector location. The diffusion screen provides other desirable screen characteristics. The prescreen is preferably formed by a collection of light transmitting and refracting elements, preferably spheres 80, partially embedded in a light blocking layer. Toward the back of the spheres 80 are effective apertures 82 where the light blocking layer 81 is absent or at least thinner than in other regions toward the side of the spheres. The projected image enters spheres 80 through the effective apertures 82, and exits the spheres 80 centered orientationally about the normal to the lens axis. The re-oriented light rays then enter the diffusion screen for viewing.

摘要翻译： 公开了一种将角度再分布预分屏与常规扩散屏组合的屏幕组件。 预屏可以最大限度地减少或消除屏幕组件对投影机位置的敏感度。 扩散屏幕提供了其他所需的屏幕特性。 预筛选优选通过光透射和折射元件的集合来形成，优选地是部分地嵌入遮光层中的球体80。 朝向球体80的背面是有效的孔82，其中光阻挡层81不存在或至少比在其他区域朝向球的侧面更薄。 投影的图像通过有效孔82进入球体80，并且离开以关于透镜轴线的法线定向定位的球体80。 重新定向的光线然后进入扩散屏幕以供观看。

公开(公告)号：US06256145B1

公开(公告)日：2001-07-03

申请号：US09061943

申请日：1998-04-17

申请人： Toshiya Kono ,  Yasuaki Nakanishi

发明人： Toshiya Kono ,  Yasuaki Nakanishi

IPC分类号： G03B2160

CPC分类号： G03B21/625

摘要： A rear projection display apparatus is provided with a screen unit. The screen unit includes a Fresnel lens sheet for gathering incident image light, a lenticular lens sheet for causing the image light gathered by the Fresnel lens sheet to be incident thereon and to be diffused, and having an external-light absorbing layer on the emergent side thereof, and a light diffusing structure for diffusing the image light incident on the lenticular lens sheet. The haze of the light diffusing structure is set at a predetermined value, and the covering ratio per unit area of the external-light absorbing layer is set according to the diffusion property represented by the haze so that it is smaller than the case in which no light diffusing structure is employed.

摘要翻译： 背投显示装置设有屏幕单元。 屏幕单元包括用于聚集入射图像光的菲涅耳透镜片，用于使由菲涅尔透镜片收集的图像光入射并散射的双凸透镜片，并且在出射侧具有外部光吸收层 以及用于扩散入射在双凸透镜片上的图像光的光漫射结构。 将光漫射结构的雾度设定为规定值，根据由雾度表示的扩散性，设定外部光吸收层的单位面积的覆盖率，使其小于无 采用光漫射结构。

公开(公告)号：US06185038B2

公开(公告)日：2001-02-06

申请号：US09148960

申请日：1998-09-08

申请人： Hiroshi Yamaguchi ,  Kenichi Ikeda

发明人： Hiroshi Yamaguchi ,  Kenichi Ikeda

IPC分类号： G03B2160

CPC分类号： G03B21/625

摘要： In a screen for a rear image projection system, a Fresnel lens sheet, a lenticular lens array sheet whose longitudinal direction is arranged in the vertical direction, and a light diffusion sheet are provided in that order from the projection side. The light diffusion sheet has louver-shaped light absorption wall columns whose longitudinal direction is arranged in the horizontal direction and a light diffusion layer. The light diffusion layer is located on the observation side of the light absorption wall columns. Projected light is properly dispersed and exits without causing the absorption loss due to the light absorption wall columns. Outside light entering from the observation side is diffused in the light diffusion layer and absorbed by the light absorption wall columns. Also, the total reflection component on the lenticular lens surface is absorbed by the light absorption wall columns. As a result, the decrease of contrast caused by the diffuse reflection can be reduced greatly. Therefore, a rear projection screen and a rear projector that have a great effect of reducing the reflection of the outside light with a small loss of the transmitted light can be obtained.

摘要翻译： 在背投影系统的屏幕中，从投影侧依次设置菲涅尔透镜片，纵向排列在垂直方向上的双凸透镜阵列片和光漫射片。 光扩散片具有沿水平方向配置长边方向的百叶窗形吸光壁列和光扩散层。 光扩散层位于光吸收壁列的观察侧。 投射光适当地分散并离开而不会引起由吸光壁柱引起的吸收损失。 从观察侧进入的外部光在光扩散层中扩散并被光吸收壁列吸收。 此外，双凸透镜表面上的全反射分量被光吸收壁柱吸收。 结果，可以大大降低由漫反射引起的对比度的降低。 因此，可以获得具有以较小的透射光损失减少外部光的反射的巨大效果的后投影屏幕和后投影仪。

公开(公告)号：US06807003B2

公开(公告)日：2004-10-19

申请号：US10025312

申请日：2001-12-19

申请人： Hiroyoshi Kobayashi ,  Kazuya Yamanaka ,  Masakatsu Ohuchi ,  Isao Doshida

发明人： Hiroyoshi Kobayashi ,  Kazuya Yamanaka ,  Masakatsu Ohuchi ,  Isao Doshida

IPC分类号： G03B2160

CPC分类号： G03B21/602

摘要： An optical sheet to be used as a screen on which an image is projected from an image projector is provided. The optical sheet is produced by joining a plurality of optical sheet members with end surfaces thereof meeting each other as joint surfaces. The optical sheet members are realized with lenticular lens sheets. Each lenticular lens sheet has lenses, which are elongated in a second direction, juxtaposed in a first direction orthogonal to the second direction. The optical properties of the optical sheet members that are slightly undulated vary cyclically in the first direction. And the optical sheet members to be joined are a selected pair of optical sheet members whose undulations are substantially identical to each other or symmetrical to each other with respect to the joint surfaces.

摘要翻译： 提供用作从图像投影仪投影图像的屏幕的光学片。 光学片通过将多个光学片部件的端面相互连接而形成为接合面。 光学片部件由双凸透镜片实现。 每个双凸透镜片具有沿与第二方向垂直的第一方向并列的第二方向的透镜。 稍微起伏的光学片构件的光学特性在第一方向上周期性地变化。 并且要接合的光学片构件是选定的一对光学片构件，其波纹​​彼此基本相同或相对于接合表面彼此对称。