公开(公告)号：US20050194516A1

公开(公告)日：2005-09-08

申请号：US10792850

申请日：2004-03-05

Applicant: Roy Littleton

Inventor： Roy Littleton

IPC: G01J1/32

CPC classification number: G01J3/108 ,  G01J1/08 ,  G01J3/0286 ,  G01J5/522 ,  G01J2003/1282

Abstract: An apparatus for emulating various known night sky illumination conditions. The apparatus comprises a plurality of electrically-powerable LEDs which are disposed in an array and have respective spectral curves centered at different wavelengths in the visible to the short wave infrared wavebands, and means for fixing the temperatures of the LEDs to avoid temperature-induced changes in their spectral curves. Additionally, the apparatus includes means for varying the light intensities of the individual LEDs so that the combination of their spectral curves matches the spectrum of the known night sky illumination condition to be emulated, and means for regulating the total amount of light collected from the array so that the cumulative spectrum has the same intensity as the known night sky illumination condition to be emulated.

Abstract translation: 用于模拟各种已知夜空照明条件的装置。 该装置包括多个可电功率的LED，它们以阵列的形式设置，并且具有以对于短波红外波段的可见光的不同波长为中心的各个光谱曲线，以及用于固定LED的温度以避免温度引起的变化的装置 在它们的光谱曲线。 此外，该装置包括用于改变各个LED的光强度的装置，使得它们的光谱曲线的组合与待仿真的已知夜空照明条件的光谱匹配，以及用于调节从阵列收集的光的总量的装置 使得累积光谱具有与要仿真的已知夜空照明条件相同的强度。