单个LED的发光强度以CD为单位，同时配有视角参数，发光强度与LED的色彩没有关系。单管的发光强度从几个mCD到五千mCD不等。LED生产厂商所给出的发光强度指LED在20mA电流下点亮，最佳视角上及中心位置上发光强度最大的点。封装LED时顶部透镜的形状和LED芯片距顶部透镜的位置决定了LED视角和光强分布。一般来说相同的LED视角越大，最大发光强度越小，但在整个立体半球面上累计的光通量不变。 当多个LED较紧密规则排放，其发光球面相单个LED的发光强度以CD为单位，同时配有视角参数，发光强度与LED的色彩没有关系。单管的发光强度从几型槽模具 井盖钢模具 保定雅思 一次性止血带 保定养老院  保定水处理设备 一次性止血带  个mCD到五千mCD不等。LED生产厂商所给出的发光强度指LED在20mA电流下点亮，最佳视角上及中心位置上发光强度最大的点。封装LED时顶部透镜的形状和LED芯片距顶部透镜的位置决定了LED视角和光强分布。一般来说相同的LED视角越大，最大发光强度越小，但在整个立体半球面上累计的光通量不变。 当多个LED较紧密规则排放，其发光球面相互叠加，导致整个发光平面发光强度分布比较均匀。在计算显示屏发光强度时，需根据LED视角和LED的排放密度，将厂商提供的最大点发光强度值乘以30%～90%不等，作为单管平均发光强度。
The luminous intensity of a single LED is based on CD, and is equipped with viewing angle parameters. The luminous intensity has no relationship with the color of LED. The luminous intensity of a single tube varies from a few MCDs to 5000 MCDs. The luminous intensity given by the LED manufacturer refers to the point where the LED lights up at the current of 20mA, with the highest luminous intensity at the best viewing angle and the center position. The shape of the top lens and the position of the LED chip from the top lens determine the viewing angle and light intensity distribution of the LED. Generally speaking, the larger the viewing angle of the same LED is, the smaller the maximum luminous intensity is, but the accumulated luminous flux on the whole hemispherical surface remains unchanged. When more than one LED is closely and regularly discharged, its luminous sphere overlaps with each other, resulting in uniform luminous intensity distribution of the whole luminous plane. When calculating the luminous intensity of the display screen, it is necessary to multiply the maximum point luminous intensity value provided by the manufacturer by 30% - 90% according to the LED viewing angle and led emission density as the average luminous intensity of a single tube. 互叠加，导致整个发光平面发光强度分布比较均匀。在计算显示屏发光强度时，需根据LED视角和LED的排放密度，将厂商提供的最大点发光强度值乘以30%～90%不等，作为单管平均发光强度。
The luminous intensity of a single LED is based on CD, and is equipped with viewing angle parameters. The luminous intensity has no relationship with the color of LED. The luminous intensity of a single tube varies from a few MCDs to 5000 MCDs. The luminous intensity given by the LED manufacturer refers to the point where the LED lights up at the current of 20mA, with the highest luminous intensity at the best viewing angle and the center position. The shape of the top lens and the position of the LED chip from the top lens determine the viewing angle and light intensity distribution of the LED. Generally speaking, the larger the viewing angle of the same LED is, the smaller the maximum luminous intensity is, but the accumulated luminous flux on the whole hemispherical surface remains unchanged. When more than one LED is closely and regularly discharged, its luminous sphere overlaps with each other, resulting in uniform luminous intensity distribution of the whole luminous plane. When calculating the luminous intensity of the display screen, it is necessary to multiply the maximum point luminous intensity value provided by the manufacturer by 30% - 90% according to the LED viewing angle and led emission density as the average luminous intensity of a single tube.