Eckerle K L, Venable W H, Weidner V R
Appl Opt. 1976 Mar 1;15(3):703-7. doi: 10.1364/AO.15.000703.
Through the use of an efficient design and a newly available sphere coating material, a simple, passive, sturdy averaging sphere was made that operates effectively over the wavelength range from 200 nm to 2000 nm. Data are reported for a sphere of this type in which the sphere transmittance is 0.32 at 200 nm and rises rapidly to near the maximum theoretical value of 0.56 over the remainder of the wavelength range. The several orders of magnitude reduction in error due to beam displacement more than compensate the slight reduction in signal for many spectrophotometric and radiometric applications.
通过采用高效的设计和一种新可得的球体涂层材料，制作出了一个简单、无源、坚固的积分球，它在200纳米至2000纳米的波长范围内能有效工作。报告了这种类型球体的数据，其中该球体在200纳米处的透过率为0.32，并在波长范围的其余部分迅速上升至接近0.56的最大理论值。对于许多分光光度和辐射测量应用而言，由于光束位移导致的误差降低了几个数量级，这足以弥补信号的轻微减弱。
