PROBLEM TO BE SOLVED: To provide a projector that can reduce occurrence of a color shift even when displaying a low luminance image on a display surface.SOLUTION: A projector comprises a light source control unit 117 that controls an output of each of laser light sources 103 to 105, using a characteristic approximate expression approximating an IL characteristic of each of the laser light sources 103 to 105. An error between a value of the IL characteristic expressed by the characteristic approximate expression and an actually measured value of the IL characteristic falls within a prescribed error range. The characteristic approximate expression is composed of a plurality of approximate expressions having the IL characteristic divided by one or more division points, and is calculated so that an optical output ratio at corresponding one or more division points of each of the laser light sources 103 to 105 is a white balance ratio.SELECTED DRAWING: Figure 6

    【課題】低輝度画像を表示面に表示させたときであっても、色ズレの発生を低減できるプロジェクタを提供する。【解決手段】レーザ光源103〜105それぞれのIL特性を近似する特性近似式を用いて、レーザ光源103〜105それぞれの出力を制御する光源制御部117を備える。特性近似式により表現されたIL特性の値と、実際に測定されたIL特性の値との誤差は、所定の誤差範囲であり、特性近似式は、上記IL特性を1以上の分割点で分けられた区間ごとの複数の近似式からなり、レーザ光源103〜105それぞれの、対応する1以上の分割点における光出力の比が、ホワイトバランス比率となるように、特性近似式は算出されている。【選択図】図6


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    Title :

    PROJECTOR


    Additional title:

    プロジェクタ


    Contributors:

    Publication date :

    2017-06-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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