LED透镜发光角度,急,高分求解!
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LED投光灯,我用的透镜角度是90度的,灯具做成以后,灯具距墙面2米,光斑只有2米的直径,请问这是为什么,因为按着数据往里套的话,灯具发光点与墙面之间距离作为三角形的一条边,那么... LED投光灯,我用的透镜角度是90度的,灯具做成以后,灯具距墙面2米,光斑只有2米的直径,请问这是为什么,因为按着数据往里套的话,灯具发光点与墙面之间距离作为三角形的一条边,那么光斑的半径1米也可以作为三角形的另一条边,问题是现在短边是长边的一半,那么就说明这个角度是30度,这是灯具整体发光角度的一半,那么乘以2以后也就是60度,我就奇怪,为什么90度的透镜出来的效果却是60度的角度呢?而且光斑直径2米,我都已经算到快不亮的区域了,Z亮的区域也就1米多,因为我现在就算直径是2米 我还没办法给客户交代过去:90度透镜出来的是60度(其实客户拍的图的效果看 比较亮的部分直径也就是1米,他算的角度更狠 直接说我用30度透镜 要我赔偿呢) 希望高手能仔细的帮我解决这个问题,我可以多给你分,我换几个号给分,谢谢了,真的很急,谢谢 谢谢 展开
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- 痉裙厍凸傻 2018-02-23 00:00:00
- 还有就是你那个led灯珠的发光角度是不是特别小?
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- aomeng01 2017-11-25 00:00:00
- 用90°的透镜,如果灯具对着墙照射,距离墙壁多少米,光斑的直径就是多少米,所以没错。 解释如下: 当灯具垂直地照射墙面,从灯具画一条直线到墙面,这条平分灯具的照射角。 那么,直线与灯具照射Z大角度斜线的夹角为45°,与墙面光斑半径形成一个等腰直角三角形,而等腰就是指光斑的半径和灯具与墙的距离。 所以,用90°的透镜,光斑的半径与灯具与墙的距离相等。 如果用120°的透镜,则光斑的半径等于灯具与墙距离的1.732倍。 顺便问楼主一个问题:你希望达到的是个什么效果?如果灯具距离墙壁是1米的话,光斑的半径需要是多少米?
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- LED透镜发光角度,急,高分求解!
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