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    • 3. 发明授权
    • Television camera
    • 电视摄像机
    • US4480269A
    • 1984-10-30
    • US462215
    • 1983-01-31
    • Nobuaki YoshidaYoshio MoriKazushige OoiSumio Sakai
    • Nobuaki YoshidaYoshio MoriKazushige OoiSumio Sakai
    • G02F1/15G02F1/155H04N5/225H04N5/238H04N3/06
    • G02F1/155H04N5/2254
    • A television camera equipped with an active filter section capable of producing dynamic special effects in the picture. The filter section of the camera includes an electro-optic light control device which is arranged in the optical path of the imaging optical section of the television camera such that its light transmittance for the incident light to the image screen of the camera is varied in response to the application of an electric signal, and the variable transmittance area is divided into a plurality of sections adapted to be controlled and drived selectively. Also, the camera includes a drive unit for selectively controlling and driving the sections of the electro-optic light control device so as to vary with time the spread of the area of the sections having the transmittance varied in response to the application of the electric signal.
    • 配备有能够在图像中产生动态特效的有源滤波器部分的电视摄像机。 相机的滤光器部分包括电光控制装置,其布置在电视摄像机的成像光学部分的光路中,使得其对于相机的图像屏幕的入射光的透光率响应地变化 对可能的透射区域进行分配,以选择性地被控制和驱动。 此外,相机包括用于选择性地控制和驱动电光控制装置的部分的驱动单元,以随着时间而变化,响应于电信号的应用,具有透射率的部分的面积的扩展变化 。