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    • 8. 发明授权
    • Projection screen and method for manufacturing the same
    • 投影屏幕及其制造方法
    • US07095557B2
    • 2006-08-22
    • US11098971
    • 2005-04-05
    • Junichi OhsakoMasayasu KakinumaHideya ChubachiHiroshi Hayashi
    • Junichi OhsakoMasayasu KakinumaHideya ChubachiHiroshi Hayashi
    • G03B21/56G03B21/60
    • G03B21/56
    • A projection screen includes a plurality of convex portions serving as a light diffusion control portion, on the surface of a substrate. An optical thin film overlies the substrate and has convex portions having the same shape as that of the convex portions of the substrate. When external light enters the optical thin film with light in three primary color wavelength bands, the optical thin film reflects only the light in the three color wavelength bands and absorbs at least visible light of the external light. When light in the three primary color wavelength bands perpendicularly enters the optical thin film, the rays of the light have incident angles at the convex portions of the optical thin film and diffuse-reflected at angles twice the incident angles. Thus, a predetermined percentage of the light is diffused to increase the viewing angle of the screen.
    • 投影屏幕在基板的表面上包括用作光漫射控制部分的多个凸部。 光学薄膜覆盖在基板上,具有与基板的凸部相同形状的凸部。 当外部光以三原色波长带的光进入光学薄膜时,光学薄膜仅反射三色波长带中的光并吸收外部光的至少可见光。 当三原色波长带中的光垂直地进入光学薄膜时,光线在光学薄膜的凸部处具有入射角,并以入射角的两倍进行漫反射。 因此,光的预定百分比被扩散以增加屏幕的视角。
    • 9. 发明申请
    • 3-D image display unit
    • 3-D图像显示单元
    • US20050225629A1
    • 2005-10-13
    • US10502733
    • 2003-12-02
    • Shigeo KubotaToshitaka KawashimaJunichi OhsakoNaoya Eguchi
    • Shigeo KubotaToshitaka KawashimaJunichi OhsakoNaoya Eguchi
    • G02B26/08G02B27/22H04N13/00H04N13/04
    • G02B27/2271G02B26/0808G02B27/2235G02B27/2242H04N13/388
    • The present invention is to provide a three-dimensional image display apparatus, in which three-dimensional images of a moving image and a still image are directly obtained without using a hologram technology and a high speed operation can be attained. The three-dimensional image display apparatus of the present invention includes an optical modulator array which modulates the light intensity of an incident light to be an image signal light and an optical deflector array which shifts an image focusing position of each pixel light from the optical modulator array in the direction of an optical axis to form a three-dimensional section image, wherein the optical modulator array is formed of a diffractive type array in which a plurality of light reflective films are driven and correspond to a light of one pixel and the optical reflector array 4 is formed of an array in which a plurality of light reflective films are driven and correspond to a light of one pixel.
    • 本发明提供一种三维图像显示装置,其中可以直接获得运动图像和静止图像的三维图像而不使用全息图技术并且可以实现高速操作。 本发明的三维图像显示装置包括调制作为图像信号光的入射光的光强度的光学调制器阵列和将来自光学调制器的每个像素光的图像聚焦位置偏移的光学偏转器阵列 在光轴的方向上排列以形成三维截面图像,其中光调制器阵列由衍射型阵列形成,其中多个光反射膜被驱动并对应于一个像素的光,并且光学 反射器阵列4由其中多个光反射膜被驱动并对应于一个像素的光的阵列形成。
    • 10. 发明申请
    • Projection screen
    • 投影屏幕
    • US20050018285A1
    • 2005-01-27
    • US10474768
    • 2003-03-14
    • Shigeo KubotaJunichi OhsakoMasayasu KakinumaKazuhito Shimoda
    • Shigeo KubotaJunichi OhsakoMasayasu KakinumaKazuhito Shimoda
    • G03B21/60G02B5/00G02B5/02G02B5/20G02B5/26G02B5/28G03B21/56
    • G02B5/285G02B5/0242G02B5/0284G02B5/20G03B21/60
    • A clear image unaffected by the brightness of the projection environment. The projection screen according to the present invention is a projection screen for projecting thereupon narrow-band tricolor wavelength band light to display an image, and comprises an optical thin film (3) which has high reflection properties regarding the narrow-band tricolor wavelength band light, and has high transmission properties regarding at least visible wavelength band light other than the wavelength band light, on a screen base (2). With the projection screen according to the present invention configured as above, the optical thin film (3) serves as a so-called band filter. That is to say, the optical thin film (3) particularly reflects narrow-band tricolor wavelength band light and transmits light of other wavelengths, thereby functioning as a narrow-band tricolor wavelength bandwidth filter acting to separate these.
    • 清晰的图像不受投影环境的亮度的影响。 根据本发明的投影屏幕是用于在其上投射窄带三色波长带光以显示图像的投影屏幕,并且包括对窄带三色波长带光具有高反射特性的光学薄膜(3) ,并且在屏幕底座(2)上具有至少在波长带光以外的至少可见波长带光的透射性。 利用如上构造的根据本发明的投影屏,光学薄膜(3)用作所谓的带式滤波器。 也就是说,光学薄膜(3)特别反映窄带三色波长带光并透射其他波长的光,从而起到用于分离它们的窄带三色波长带宽滤波器的作用。