Seim T, Prydz S
Appl Opt. 1972 May 1;11(5):1169-77. doi: 10.1364/AO.11.001169.
An automated scanning spectroradiometer has been constructed for the measurement of color-vision test stimuli and various types of luminescence. A Jarrell-Ash 0.25-n, f/3.6 Ebert type monochromator is employed in combination with photoelectric detection. Recorder and paper tape data output have been provided. Processing of the spectral information is performed by a CDC 3300 computer. The spectral sweep range can easily be set by electromechanical registers, as can the number of required sweeps. Photon numbers are integrated by the counter over 5-nm blocks, and this procedure sets the limit of resolution. The spectral range is between 250 nm and 800 nm. By computer several spectra can be added when they are faint. Mean spectra are listed and plotted. Smoothing can be performed for spectra where noise is predominant. A novel method of correction by computer has been introduced to get rid of stray-light and grating ghosts in the monochromator. A program has been written for colorimetric analyses of light sources, spectral filters, and pigmented surfaces. The dominant wavelength and the excitation purity are computed and given in CIE chromaticity coordinates.
已构建了一台自动扫描光谱辐射计，用于测量色觉测试刺激和各种类型的发光。采用了一台Jarrell-Ash 0.25米、f/3.6埃伯特型单色仪，并结合光电检测。配备了记录仪和纸带数据输出。光谱信息由一台CDC 3300计算机进行处理。光谱扫描范围可通过机电寄存器轻松设置，所需扫描次数也可如此设置。计数器对5纳米区间的光子数进行积分，此过程设定了分辨率极限。光谱范围在250纳米至800纳米之间。当光谱微弱时，计算机可将多个光谱相加。列出并绘制平均光谱。对于噪声占主导的光谱可进行平滑处理。已引入一种新颖的计算机校正方法，以消除单色仪中的杂散光和光栅鬼线。已编写了一个程序，用于对光源、光谱滤光片和有色表面进行比色分析。计算出主波长和激发纯度，并以CIE色度坐标给出。
