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    • 6. 发明授权
    • Video providing apparatus
    • 视频提供装置
    • US06712469B2
    • 2004-03-30
    • US10303727
    • 2002-11-26
    • Takahisa Ando
    • Takahisa Ando
    • A61B310
    • H04N9/3141H04N5/7416H04N9/3108
    • There is provided a video providing apparatus capable of giving clear video to a patient with an eye disease. The video providing apparatus comprises a parallel light source or a parallel light type LED as a light source. Video light obtained by passing light from the light source through a liquid crystal display panel is supplied to an ocular optical system (Maxwellian view). In this configuration, the ocular optical system comprises a lens and a pinhole. The lens is provided such that the rear focal point thereof is positioned in close proximity to the eyeball of a viewer (a patient with an eye disease). The pinhole is arranged at the rear focal point, thereby causing a viewer to view video by Maxwellian view.
    • 提供了一种视频提供装置,其能够向患有眼睛疾病的患者提供清晰的视频。 视频提供装置包括平行光源或平行光型LED作为光源。 通过将来自光源的光通过液晶显示面板获得的视觉光被提供给眼睛光学系统(麦克斯韦视图)。 在该配置中,眼睛光学系统包括透镜和针孔。 透镜被设置成使得其后焦点位于靠近观察者(眼病患者)的眼球附近。 针孔布置在后焦点处,从而使观众通过麦克斯韦视图观看视频。