CIE released about determine the directional light beam axis, center the beam intensity and beam Angle of the technical note

international commission on illumination ( pictet & CIE) Issued a technical note file TN 010:2019 - 确定光束轴,中心梁强度,和定向光源的光束角。 This file is provided to determine the directional light beam axis, center the beam intensity and beam Angle method, by CIE TC2 - 78 technical committee to draft, to reflect the current CIE knowledge and experience in the field of this item. As a technical note, this file is informative, are not enforced.

accessories: CIE_TN_010_2019. PDF

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