CN110444649A - 模拟太阳光的全光谱led光源封装方法及其封装结构 - Google Patents
模拟太阳光的全光谱led光源封装方法及其封装结构 Download PDFInfo
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Abstract
模拟太阳光的全光谱LED光源封装方法及其封装结构，通过双波晶片激发宽谱荧光粉，在LED发光单元固定一个峰值波长440‑442.5nm的短波段蓝色芯片和一个峰值波长457.5‑460nm的长波段蓝色芯片，两个蓝光晶片通过金线串联，正装固晶。本发明采用双波晶片激发宽谱荧光粉技术，实现高度模拟太阳光谱的全光谱LED光源，光源显色指数98以上，R1‑R15均达到98以上，满足了消费者对光生物安全和健康照明方面的更高要求，具有成本低、发光自然和感光舒适的优点。
Description
技术领域
本发明涉及LED照明技术领域，具体涉及一种模拟太阳光的全光谱LED光源封装方法及其封装结构。
背景技术
随着LED照明技术的发展，人们对于光生物安全、健康照明等方面提出了更高的要求。人眼最习惯的光照是太阳光，所以人造光源的光谱越接近太阳光，人眼对于颜色的感觉越自然，越舒适。白光LED作为第四代照明光源，它具有固体化、体积小、发热量低、耗电量小、寿命长、反应速度快和环保等优点，预计未来会被广泛应用于普通照明和背光光源等领域。特别是白光LED照明，由于符合绿色照明工程节能与环保的要求，未来预计会被广泛应用。但是半导体LED的发光原理决定了它只能是单色光，而太阳可见光是由红橙黄绿青蓝紫颜色组成的多彩光谱，显然只有单色的半导体LED光源并不适合在普通的照明领域使用。半导体LED光源要进入普通照明领域就必须通过其他技术的运用来改变其单色发光的缺陷。白光LED技术就是对LED单色光进行改造的典型代表，其目的是使LED光源接近自然日光色从而可用于普通照明领域。
目前全光谱LED光源主要有：单波蓝光晶片激发红黄蓝荧光粉、紫光晶片激发红黄绿荧光粉技术。单波蓝光晶片激发红黄蓝荧光粉技术，这种光源的光谱在蓝绿波段有较明显的沟壑，难以达到太阳光谱的连续性，由于光谱部分缺失，显色指数98已是极限；另一种是紫光晶片激发红黄绿荧光粉技术，这种封装技术可以实现光谱的高度连续性，显色指数98以上，但是紫外晶片成本过高，是普通蓝光晶片的几十倍，导致这类全光谱LED光源的价格偏高。另外因紫外晶片能量过高，会增加高能低波段对于视网膜损伤的风险。
发明内容
本发明提供了一种模拟太阳光的全光谱LED光源封装方法及其封装结构，以解决现有技术存在的难以达到太阳光谱的连续性以及成本高的问题。
本发明解决其技术问题所采用技术方案是：
一种模拟太阳光的全光谱LED光源封装方法，通过双波晶片激发宽谱荧光粉，在LED发光单元固定一个峰值波长440-442.5nm的短波段蓝色芯片和一个峰值波长457.5-460nm的长波段蓝色芯片，两个蓝光晶片通过金线串联，正装固晶，双波蓝光晶片激发的荧光粉包括峰值波长490nm的绿色荧光粉（x=0.079±0.003，y=0.481±0.003）；峰值波长为518nm（x=0.3328±0.003，y=0.5782±0.003）的黄绿粉；峰值波长为525nm（x=0.347±0.003，y=0.575±0.003）的黄绿粉；峰值波长为535nm（x=0.3774±0.003，y=0.5668±0.003）的黄绿粉以及峰值波长为660nm（x=0.6763±0.003，y=0.0.3235±0.003）的红色荧光粉，这五种荧光粉通过硅胶调和为荧光胶，调和成的荧光胶水中，490nm的绿色荧光粉的质量为胶水质量的3.4%-3.5%，518nm的黄绿荧光粉的质量为胶水质量的2.7%-2.8%，525nm的黄绿荧光粉的质量为胶水质量的6.4%-6.5%，535nm的黄绿荧光粉的质量为胶水质量的6.5%-6.6%，660nm的红色荧光粉的质量为胶水质量的1.5%-1.6%。
上述荧光胶水中加入抗沉淀粉，抗沉淀粉的质量为胶水质量的0.7%-0.8%，以保证量产稳定性，抗沉淀粉成份为纳米硅，是一种人工合成亲水型的无定形二氧化硅，主要用于LED之调配荧光粉和防止荧光粉沉淀。
采用上述封装方法制成的模拟太阳光的全光谱LED光源封装结构，长波段蓝光晶片与短波段蓝光晶片通过绝缘胶串联固定于LED支架上，短波段蓝光晶片正极通过金线与支架正极连接，短波段蓝光晶片负极通过金线与长波段蓝光晶片正极连接，长波段蓝光晶片正极通过金线与支架负极连接，LED支架碗杯内布满荧光胶。
本发明采用双波晶片激发宽谱荧光粉技术，实现高度模拟太阳光谱的全光谱LED光源，光源显色指数98以上，R1-R15均达到98以上，满足了消费者对光生物安全和健康照明方面的更高要求，具有成本低、发光自然和感光舒适的优点。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1是本发明LED光源装置的封装结构示意图；
图2是本发明LED光源的光谱图。
图中1 LED支架、2长波段蓝光晶片、3短波段蓝光晶片、4晶片正极、5晶片负极、6金线、7荧光胶。
具体实施方式
一种模拟太阳光的全光谱LED光源封装方法，通过双波晶片激发宽谱荧光粉，在LED发光单元固定一个峰值波长440-442.5nm的短波段蓝色芯片和一个峰值波长457.5-460nm的长波段蓝色芯片，两个蓝光晶片通过金线串联，正装固晶，双波蓝光晶片激发的荧光粉包括峰值波长490nm的绿色荧光粉（x=0.079±0.003，y=0.481±0.003）；峰值波长为518nm（x=0.3328±0.003，y=0.5782±0.003）的黄绿粉；峰值波长为525nm（x=0.347±0.003，y=0.575±0.003）的黄绿粉；峰值波长为535nm（x=0.3774±0.003，y=0.5668±0.003）的黄绿粉以及峰值波长为660nm（x=0.6763±0.003，y=0.0.3235±0.003）的红色荧光粉，这五种荧光粉通过硅胶调和为荧光胶，调和成的荧光胶水中，490nm的绿色荧光粉的质量为胶水质量的3.4%-3.5%，518nm的黄绿荧光粉的质量为胶水质量的2.7%-2.8%，525nm的黄绿荧光粉的质量为胶水质量的6.4%-6.5%，535nm的黄绿荧光粉的质量为胶水质量的6.5%-6.6%，660nm的红色荧光粉的质量为胶水质量的1.5%-1.6%。
上述荧光胶水中加入抗沉淀粉，抗沉淀粉的质量为胶水质量的0.7%-0.8%，以保证量产稳定性，抗沉淀粉成份为纳米硅，是一种人工合成亲水型的无定形二氧化硅，主要用于LED之调配荧光粉和防止荧光粉沉淀。
采用上述封装方法制成的模拟太阳光的全光谱LED光源封装结构，如图1所述，长波段蓝光晶片2与短波段蓝光晶片3通过绝缘胶串联固定于LED支架1上，短波段蓝光晶片的晶片正极4通过金线6与支架正极连接，短波段蓝光晶片的晶片负极5通过金线6与长波段蓝光晶片正极连接，长波段蓝光晶片正极通过金线与支架负极连接，LED支架碗杯内布满荧光胶7。
如图2所示，通过本发明封装技术制成的高度模拟太阳光谱的全光谱LED光源，光源显色指数98以上，R1-R15均达到98以上。
Claims (3)
1.一种模拟太阳光的全光谱LED光源封装方法，其特征是通过双波晶片激发宽谱荧光粉，在LED发光单元固定一个峰值波长440-442.5nm的短波段蓝色芯片和一个峰值波长457.5-460nm的长波段蓝色芯片，两个蓝光晶片通过金线串联，正装固晶，双波蓝光晶片激发的荧光粉包括峰值波长490nm的绿色荧光粉（x=0.079±0.003，y=0.481±0.003）；峰值波长为518nm（x=0.3328±0.003，y=0.5782±0.003）的黄绿粉；峰值波长为525nm（x=0.347±0.003，y=0.575±0.003）的黄绿粉；峰值波长为535nm（x=0.3774±0.003，y=0.5668±0.003）的黄绿粉以及峰值波长为660nm（x=0.6763±0.003，y=0.0.3235±0.003）的红色荧光粉，这五种荧光粉通过硅胶调和为荧光胶，调和成的荧光胶水中，490nm的绿色荧光粉的质量为胶水质量的3.4%-3.5%，518nm的黄绿荧光粉的质量为胶水质量的2.7%-2.8%，525nm的黄绿荧光粉的质量为胶水质量的6.4%-6.5%，535nm的黄绿荧光粉的质量为胶水质量的6.5%-6.6%，660nm的红色荧光粉的质量为胶水质量的1.5%-1.6%。
2.根据权利要求1所述的模拟太阳光的全光谱LED光源封装方法，其特征是荧光胶水中加入抗沉淀粉，抗沉淀粉的质量为胶水质量的0.7%-0.8%。
3.采用权利要求1或2封装方法制成的模拟太阳光的全光谱LED光源封装结构，其特征是长波段蓝光晶片与短波段蓝光晶片通过绝缘胶串联固定于LED支架上，短波段蓝光晶片正极通过金线与支架正极连接，短波段蓝光晶片负极通过金线与长波段蓝光晶片正极连接，长波段蓝光晶片正极通过金线与支架负极连接，LED支架碗杯内布满荧光胶。
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828851A (zh) * | 2020-08-13 | 2020-10-27 | 北京泊菲莱科技有限公司 | 一种能够模拟标准光源的led集成灯珠及光谱调节适配方法 |
| CN112786575A (zh) * | 2020-12-30 | 2021-05-11 | 广州硅能照明有限公司 | 一种全光谱led光源 |
| CN113540315A (zh) * | 2021-06-11 | 2021-10-22 | 东莞市立德达光电科技有限公司 | 一种植物照明led封装方法 |
| CN113540321A (zh) * | 2021-05-27 | 2021-10-22 | 东莞市立德达光电科技有限公司 | 一种高光色品质的白光led封装方法 |
| CN113540322A (zh) * | 2021-06-03 | 2021-10-22 | 东莞市立德达光电科技有限公司 | 一种摄影补光灯led封装方法 |
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| CN111828851A (zh) * | 2020-08-13 | 2020-10-27 | 北京泊菲莱科技有限公司 | 一种能够模拟标准光源的led集成灯珠及光谱调节适配方法 |
| CN112786575A (zh) * | 2020-12-30 | 2021-05-11 | 广州硅能照明有限公司 | 一种全光谱led光源 |
| CN113540321A (zh) * | 2021-05-27 | 2021-10-22 | 东莞市立德达光电科技有限公司 | 一种高光色品质的白光led封装方法 |
| CN113540322A (zh) * | 2021-06-03 | 2021-10-22 | 东莞市立德达光电科技有限公司 | 一种摄影补光灯led封装方法 |
| CN113540315A (zh) * | 2021-06-11 | 2021-10-22 | 东莞市立德达光电科技有限公司 | 一种植物照明led封装方法 |
| CN116751585A (zh) * | 2023-06-25 | 2023-09-15 | 江苏博睿光电股份有限公司 | 一种荧光粉组合物以及led器件 |
| CN117558723A (zh) * | 2024-01-12 | 2024-02-13 | 广东华辉煌光电科技有限公司 | 一种多波峰连续全光谱护眼光源及其制造方法 |
| CN117558723B (zh) * | 2024-01-12 | 2024-03-29 | 广东华辉煌光电科技有限公司 | 一种多波峰连续全光谱护眼光源及其制造方法 |
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