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什么是预热

贺拉斯-贺

最後更新:2023年12月26日

什么是预热

在照明行业中,预热是指在灯丝或灯具上施加极少量电能的做法。 燈泡 然后再完全接通电源。采用这种技术是为了延长灯丝灯的使用寿命,并防止对灯丝灯造成热冲击。 花药.通过预热,灯管开始发出低亮度的光,从而在通电后能更快地达到所需的亮度。因此,开灯的过程会变得更加顺畅,避免了从冷态启动时的突然 "冲击"。

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预热对白炽灯特别有益,尤其是在冬季寒冷的环境中。在聚焦开始之前,将灯管预热到较低的功率百分比,通常约为 3%,有助于防止灯管因温度过低而炸裂。这种预防措施也适用于可调光 LED,因为这些灯具的内部元件需要少量电流来 "唤醒",然后才能逐渐变暗。用小电流预热有助于实现 LED 调光曲线的渐进和无缝过渡,防止它们突然开启。

此外,预热还有助于延长灯具中使用的传统凝胶的寿命。通过预热,有助于延长这些凝胶的使用寿命。总之,预热是照明行业采用的一种技术,它可以提高灯具的使用寿命,并延长灯具的使用寿命。 灯泡寿命这可以防止热冲击,并实现更平滑的调光曲线。它是指在灯丝或灯具完全通电之前,向其施加极少量的电能,从而确保更高效、更可靠的照明体验。

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