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    • 8. 发明授权
    • Illumination device and display device
    • 照明装置和显示装置
    • US09335558B2
    • 2016-05-10
    • US13543792
    • 2012-07-07
    • Toshifumi YasuiHiroshi IsobeKazuyuki Takahashi
    • Toshifumi YasuiHiroshi IsobeKazuyuki Takahashi
    • G09G5/10G02B27/48G03B21/20G03B33/08H04N9/31
    • G02B27/48G03B21/2033G03B21/208G03B33/08H04N9/3129H04N9/3155
    • An illumination device including a light source section including a laser light source, and allowing a laser light beam emitted from the laser light source to be output intermittently at a predetermined frequency; an optical element through which the laser light beam passes; and a driver section changing a coherency of the laser light beam by driving the optical element at a predetermined drive frequency. Expressions (1) |2×f2−n1×f1|≧20 or (2) |2×f2−n2×f1|≦3, (3) f2≧20 or (4) f2≦3, and (5) |f2−n1×f1|≧20 or (6) |f2−n3×f1|≦3 are satisfied, where f1 denotes the predetermined frequency in Hz, f2 denotes a variation frequency of luminance in illumination light output from the optical element in Hz, the variation frequency being generated by the driving of the optical element, n1 denotes an arbitrary integer of 0 to 10 both inclusive, and n2 and n3 denote respective predetermined integers of 0 to 10 both inclusive.
    • 一种照明装置,包括:包括激光源的光源部,并且使从所述激光光源发射的激光束以预定频率间歇地输出; 激光束通过的光学元件; 以及通过以预定的驱动频率驱动光学元件来改变激光束的一致性的驱动器部分。 表达式(1)| 2×f2-n1×f1 |≥20或(2)| 2×f2-n2×f1 |≦̸ 3,(3)f2≥20或(4)f2≦̸ 3和(5) | f2-n1×f1 |≥20或(6)| f2-n3×f1 |≦̸ 3,其中f1表示以Hz为单位的预定频率,f2表示从光学元件输出的照明光的亮度变化频率 以Hz为单位,通过驱动光学元件产生的变化频率,n1表示0〜10的任意整数,n2和n3表示0〜10的各自的规定的整数。