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    • 2. 发明申请
    • LIGHT SOURCE UNIT AND PROJECTOR
    • 光源单位和投影机
    • US20150380898A1
    • 2015-12-31
    • US14846552
    • 2015-09-04
    • USHIO DENKI KABUSHIKI KAISHA
    • Masashi OkamotoTakanori SamejimaYuichi MiuraShohei TsukamotoHirotaka Yamada
    • H01S5/0683G03B21/20
    • H04N9/3155G03B21/2033G03B21/2053G03B21/208G03B33/06H01S5/0683H04N9/3182H04N9/3194H05B33/086H05B33/0869
    • A light source unit includes: a plurality of elemental light sources each including one or more light emitting elements and one or more drive circuits; a control circuit; and a plurality of color band light characteristic measurement sections each configured to receive light to generate color band light characteristic measurement data. A plurality of the light emitting elements in the elemental light sources includes light emitting elements different in wavelength band of emission wavelength from one another. The color band light characteristic measurement sections are provided corresponding to a plurality of the wavelength bands. One or more of the color band light characteristic measurement sections include a first light intensity measurement section and a second light intensity measurement section. The control circuit generates light intensity indicating values and wavelength deviation indicating values, generates color phase indicating values, and performs first feedback control on the drive circuits.
    • 光源单元包括:多个元件光源,每个元件光源包括一个或多个发光元件和一个或多个驱动电路; 一个控制电路; 以及多个色带光特性测量部分,其被配置为接收光以产生色带光特性测量数据。 元素光源中的多个发光元件包括彼此发射波长的波长带不同的发光元件。 色带光特性测量部分对应于多个波长带设置。 一个或多个色带光特性测量部分包括第一光强度测量部分和第二光强度测量部分。 控制电路产生光强度指示值和波长偏差指示值,产生彩色相位指示值,并对驱动电路进行第一反馈控制。