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    • 12. 发明授权
    • Charge-coupled device imaging apparatus
    • 电荷耦合器件成像装置
    • US5672881A
    • 1997-09-30
    • US612195
    • 1996-03-06
    • Steven K. StriepekePeter EdridgeChristopher M. StarrJohn C. Klock
    • Steven K. StriepekePeter EdridgeChristopher M. StarrJohn C. Klock
    • G01N21/64
    • G01N21/6456
    • An apparatus for fluorescence of a biological sample includes a light illumination source, an ambient light-excluding optical chamber, a sample holder, a two-dimensional array charge coupled device ("CCD") sensor providing for on-chip signal integration of each pixel of the array, and an analog/digital converter for digitizing the CCD signal. Signal acquisition time from the array is varied so that the integrated signal from each pixel is below its saturation level. A darkfield value for each pixel is acquired and subtracted from the illuminated signal from that pixel so as to yield a darkfield corrected signal. The fluorescence value for each pixel can be compensated for variations in excitation energy reaching different sample areas. Image readout is through a single channel output.
    • 用于生物样品的荧光的装置包括光照射源,环境光排除光学室,样品架,二维阵列电荷耦合器件(“CCD”)传感器,用于提供每个像素的片上信号积分 的阵列,以及用于数字化CCD信号的模拟/数字转换器。 来自阵列的信号采集时间是变化的,使得来自每个像素的积分信号低于其饱和水平。 获取每个像素的暗场值,并从该像素的照明信号中减去暗场值,以产生暗场校正信号。 每个像素的荧光值可以补偿到不同样品区域的激发能量的变化。 图像读出是通过单通道输出。