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    • 5. 发明申请
    • PROJECTION DISPLAY DEVICE
    • 投影显示设备
    • US20120019782A1
    • 2012-01-26
    • US13241329
    • 2011-09-23
    • Ryuhei AMANO
    • Ryuhei AMANO
    • G03B21/14
    • G03B21/2073
    • In a projection display device, a polarization converting element is provided between an imager and a refracting optical system for converting a polarization direction of light after modulation into a direction radially extending from the center of the optical axis of the refracting optical system. Light transmitted through the polarization converting element is incident onto the refracting optical system in a state of P-polarized light or a state close to the state of P-polarized light. Thereby, the transmittance of light through the refracting optical system is made substantially uniform and increased.
    • 在投影型显示装置中,偏振转换元件设置在成像器和折射光学系统之间,用于将调制后的光的偏振方向转换成从折射光学系统的光轴的中心径向延伸的方向。 透过偏光转换元件的光以P偏振光的状态或接近于P偏振光的状态的状态入射到折射光学系统上。 由此,通过折射光学系统的光的透射率基本上均匀且增加。
    • 6. 发明申请
    • PROJECTION DISPLAY DEVICE
    • 投影显示设备
    • US20110063586A1
    • 2011-03-17
    • US12950542
    • 2010-11-19
    • Ryuhei AMANOTakashi IKEDA
    • Ryuhei AMANOTakashi IKEDA
    • G03B21/28
    • H04N9/3141G02F1/136277G02F2203/12G03B21/005G03B21/28
    • A projection display device includes: an optical engine that emits image light in a direction parallel to a projection plane; a first reflective optical system that reflects the image light in a first direction away from the projection plane; a second reflective optical system that reflects the image light reflected by the first reflective optical system in a second direction away from the optical engine and closer to the projection plane; and a refractive optical system. The refractive optical system is divided into a first refractive optical system interposed between the optical engine and first reflective optical system, and second refractive optical system interposed between the first and second reflective optical system. The optical engine is arranged so that a mounting plane of optical components is almost perpendicular to a plane parallel to both of the first and second directions and is almost parallel to the projection plane.
    • 投影显示装置包括:光学引擎,其在平行于投影平面的方向上发射图像光; 第一反射光学系统,其以远离投影平面的第一方向反射图像光; 第二反射光学系统,其将第一反射光学系统反射的图像光沿远离光学引擎的第二方向反射并且更靠近投影平面; 和折射光学系统。 折射光学系统被分为介于光学引擎和第一反射光学系统之间的第一折射光学系统和插入在第一和第二反射光学系统之间的第二折射光学系统。 光学引擎布置成使得光学部件的安装平面几乎垂直于与第一和第二方向两者平行的平面,并且几乎平行于投影平面。