To provide a stereoscopic image projection device.SOLUTION: A stereoscopic image projection device according to one embodiment, consists of a projection module, an ultra-fast polarization modulator, a polarizer, a reflector module, and a reflection diffuser. The projection module projects image light formed by alternately projecting first image light and the second image light. The ultra-fast polarization modulator switches the image light to the first polarized image light and the second polarized image light, reflects and transmits the light to the reflection diffuser by the polarizer, projects the first polarized image light into a first light receiving range, projects the second polarized image light into a second light receiving range, and forms stereoscopic effect. In particular, the reflection diffuser consists of a base and a plurality of micro curve mirror groups arrayed in an array on the base, each micro curve mirror being fabricated so as to conform to a reflection angle determined based on design, so that the reflection diffuser has higher degree of freedom in directivity.SELECTED DRAWING: Figure 3

    【課題】立体画像投影装置を提供する。【解決手段】本発明に係る立体画像投影装置は、投影モジュール、超高速偏光変調器、偏光子、リフレクターモジュール、及び反射型ディフューザーで構成する。投影モジュールが第1画像光及び第2画像光から交互に投射されて形成された画像光を投射し、超高速偏光変調器により画像光を第1偏光画像光及び第2偏光画像光に切り換え、偏光子により反射型ディフューザーに反射及び透過し、第1偏光画像光を第1目の受光範囲に投射し、第2偏光画像光を第2目の受光範囲に投射し、立体視効果を形成する。特に、反射型ディフューザーはベース及びベースにアレイ状の複数のマイクロカーブミラー群で構成し、各マイクロカーブミラーは設計に基づいて求められる反射角に適合するように製造することで、反射型ディフューザーが更に高い指向性の自由度を有する。【選択図】図3


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    Title :

    STEREOSCOPIC IMAGE PROJECTION DEVICE


    Additional title:

    立体画像投影装置


    Contributors:

    Publication date :

    2021-11-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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