厂家直供供应测光积分球 integrating sphere

加工定制：	是	品牌：	虹谱(HOPOO)	型号：	0.3m、0.5m、1.0m、1.5m、2.0m
光源：	可见光	波长范围：	380-780（nm）	外形尺寸：	300、500、1000（mm）
重量：	10000（g）	适用范围：	LED光源及灯具、节能灯、HID灯、卤素灯灯

积分球又称为光通球，广泛应用于光度、色度及辐射度计量测试场合。是一个中空的完整球壳。内壁涂白色漫反色层，且球内壁各点漫射均匀。光源在球壁上任意一点上产生的光照度是由多次反射光产生的光照度叠加而成的。

内壁涂层主要材料分析纯硫酸钡，化学稳定好，日久不易泛黄，符合CIE pub.NO.84（1989）要求，良好漫反射、反射率p（λ）≈0.8，反射率随波长的变化p(λ)<1.5%(380nm-780nm)积分球上有多个探测器接口，可同时满足光、色度测试直径:0.3m、0.5m、1.0m、1.5m、2.0m

如何选择积分球和挡板

光通量及色度坐标等光度、色度参数测试时，根据被测光源体积的大小，选择0.2米到2米大的积分球，积分球内必须涂有以中性的漫反射（BaSO4粉末）物质，积分球内的遮挡物必须做到最低程度。光通量测试时,被测灯的形状,光谱类型在可能的条件下最好与标准灯一致，通常选择是光源直径6倍以上的积分球。由于条件的限制如果你无法选择一个大尺寸的积分球，被测灯的形状,光谱类型在可能的条件下最好与标准灯一致。

涂抹在球内的漫反射材料的质量对测量精度影响非常大。选择白色涂层其反射系数是最低的，化学稳定性好，日久不易泛黄，其内壁主要材料是硫酸钡或硫酸镁；挡板尺寸对光源的测试精度影响非常大，通常挡板能挡住来自光源直接照射的光，选择较小的挡板比较好。通常挡板放置在探测器和光源1/3的位置。.

How to choose a suitable integrating sphere and baffle?

The size of integrating sphere is determined by the dimension of light-source, from 0.2m to 2m are optional. And the inner material of sphere can be diffuse reflection, like BASO4 powder; the baffle must be done at the lowest degree. At the luminous test mode, the shape of lamp and spectrum type should conformity with the standard light-source as possible as it can. In practice, the diameter of sphere should be as 6 times as diameter of standard light-source. But if the condition is limited, it would be better that the shape of lamp and spectrum type should conformity with the standard light-source as possible as it can.

The material quality of inner sphere will make a big effect for the measurement. Thus we choose the white coating to make the reflection coefficient be the lowest, as the BaSO4 and MgSO4 have the features of good chemistry stability, not easily turn yellow.

The baffle will also affects the test precise; the baffle will stop the detector receiving the direct lights from the light-source, it would be better to choose a small one. Generally, the baffle should be put between photo-detector and light-source.