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发明授权
CN101285993B 投射型图像显示装置 有权

投射型图像显示装置
摘要：
本发明提供一种即使在将多个固体光源配置为阵列状时也能够抑制各固体光源发出的光量的散乱的投射型图像显示装置。投射型图像显示装置(100)具有：光量传感器(70)，其检测阵列光源(10)发出的光量；恶化率计算部(240)，其从光量传感器(70)检测出的光量中取得测量对象光源的光量；基准光量存储部(230)，其以固体光源(11)单位存储多个固体光源(11)发出的光量的基准光量；以及光源控制部(250)，其以固体光源(11)单位控制多个固体光源(11)发出的光量，恶化率计算部(240)根据由光量传感器(70)检测出的光量和基准光量的比较结果来判定是否发生测量对象光源的恶化。
摘要（英）：

A projection display apparatus includes: a light amount sensor (70) which detects an amount of light emitted from an array light source (10); a deterioration rate calculator which acquires an amount of light of a measurement target light source from the amount of light detected by the light amount sensor (70); a reference light amount storage which stores a reference amount of light of an amount of light emitted from plurality of solid state light sources (11), for each of the solid state light sources (11); and a light source controller which controls the amount of light emitted from the plurality of solid state light sources (11) for each of the solid state light sources (11), and the deterioration rate calculator determines whether the measurement target light source has deteriorated, in accordance with a result of a comparison between the amount of light detected by the light amount sensor (70), and the reference amount of light.

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