积分球校准操作说明[宣讲].ppt

Sphere Corrections球体修正 Corrections must be applied to integrating sphere measurements to account for Lamp Color, Shape, Size, non-linear (or different) sphere illumination, fixturing, and Intensity Distribution. 修正必须适用于累计球（光度计的圆球）测量说明灯的色温、外型、尺寸、非线形（或者不同）球照明、预定时间和亮度分布 The corrections are:修正如下： Self Absorption自吸收 Spatial空间 Intensity Distribution亮度分布 Spectral光谱 Positional位置 * 精品PPT | 借鉴参考 Photometry System Calibration光度测量系统标准 There are typically only 2 calibrations required for photometry systems: 光度测量系统典型的有2个要求标准 Luminous flux (detector based)光通量（基于探头） Spectral光谱 Once correction factors are determined, the information can be put into calculation software (such as PDAQ) or spreadsheets and automatically used in the measurement process. 一旦确定修正因数，资料应该被输入到计算软件（象PDAQ）或者电子数据表格，自动使用在测量程序中。 * 精品PPT | 借鉴参考 Photometry Systems Calibration Calibration 1: Detector Based Calibration – Luminous Flux Calibration 标准1：探头标准-光通量标准 Lumens流明 Includes SAF, ID, Spectral, Spatial, Positional Correction Factors 包括SAF、ID、光谱、空间、位置、修正因数 Equipment: LMT, sphere. 设备：LMT、球 Calibration 2: Spectral Based Calibration – Spectral Power Distribution Calibration 标准2：光谱标准-光谱能量分布 Spectral Power Distribution光谱能量分布 Used to calculate CCT, CRI, x, y, all R-values 习惯上计算CCT、CRI、X、Y、所有R值 x,y correction factors are dependent upon this calibration, NOT the luminous flux calibration. X、Y的修正因数依赖于这个标准，不是光通量标准。 This calibration is currently a “relative” calibration – does not include corrections such as SAF, ID, etc. 这个标准是当前“相对的”标准-不包括修正象SAF、ID等 The calculated values need only relative values, not absolute values. 计算值需要的只是相对值不是绝对值 Equipment: DAS, OMA, Monochromator, Spectrometers, etc. 设备：数据采集器、OMA、单色仪、分光计等。 * 精品PPT | 借鉴参考 Photometry Systems Calibration Correction factors applied to luminous flux can include: 修正因数适用于光通量包括： Self Absorption Correction: A lamp in a sphere absorbs light emitted by itself and reflected back from the sphere wall, thus reducing the sphere responsivity 自吸收修正：一支灯在球内吸收自身发出和球壁上反射的光，从而减少了球的敏感度 S