PROBLEM TO BE SOLVED: To provide a technology for achieving both of a dust-proof and heat radiation of optical components.SOLUTION: A 1/4 wavelength plate 239 is configured to mutually exchange a linear polarization and circular polarization, and the 1/4 wavelength plate 239 is attached to a metal-made aperture mask 270 so as to entirely cover one face side of a first aperture part defining an irradiation area of the circular polarization transmitting the 1/4 wavelength plate 239. A printed substrate 250 comprises an image display element 240 that reflects the circular polarization passing through the aperture mask 270 to create image display light on the basis of an image signal. An attachment base 260 comprises a second aperture part, and the aperture mask 270 is attached so as to entirely cover a first face side of the second aperture part. The printed substrate 250 causes the image display element 240 to be positioned in the second aperture part, and is attached so as to entirely cover a second face side of the second aperture part. The printed substrate 250 has a metal layer provided in an area in contact with the attachment base 260 of the area of a substrate surface.SELECTED DRAWING: Figure 6

    【課題】光学部品の防塵と放熱とを両立するための技術を提供する。【解決手段】1/4波長板239は直線偏光と円偏光とを相互に変換する。金属製のアパーチャマスク270は、1/4波長板239を透過した円偏光の照射領域を規定する第1の開口部の一方の面側の全体を覆うように1/4波長板239が取り付けられる。プリント基板250は、画像信号に基づいて、アパーチャマスク270を通過した円偏光を反射して画像表示光を生成する画像表示素子240を備える。取付ベース260は、第2の開口部を備え、アパーチャマスク270が前記第2の開口部の第1の面側全体を覆うように取り付けられ、プリント基板250が画像表示素子240を前記第2の開口部内に位置させて前記第2の開口部の第2の面側全体を覆うように取り付けられる。プリント基板250は、基板表面の領域の取付ベース260と接触する領域内に、金属層が設けられる。【選択図】図6


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    Title :

    IMAGE DISPLAY LIGHT CREATION DEVICE AND HEAD-UP DISPLAY


    Additional title:

    画像表示光生成装置およびヘッドアップディスプレイ


    Contributors:

    Publication date :

    2016-07-07


    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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