KR101548388B1 - 낮은 프로파일의 측면 방출 led에 연결된 광학 요소 - Google Patents
낮은 프로파일의 측면 방출 led에 연결된 광학 요소 Download PDFInfo
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- KR101548388B1 KR101548388B1 KR1020107005840A KR20107005840A KR101548388B1 KR 101548388 B1 KR101548388 B1 KR 101548388B1 KR 1020107005840 A KR1020107005840 A KR 1020107005840A KR 20107005840 A KR20107005840 A KR 20107005840A KR 101548388 B1 KR101548388 B1 KR 101548388B1
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Abstract
Description
도 2a 및 2b는 서브마운트 상의 LED의 상면도 및 측면도 각각을 나타낸다.
도 3a 및 3b는 대형 서브마운트 상의 LED의 상면도 및 측면도 각각을 나타낸다.
도 4는 측면 방출된 광을 전방으로 지향되는 광으로 리다이렉트시키는 반사기를 구비한 대형 서브마운트 상의 LED의 측면도를 나타낸다.
도 5는 본 발명의 실시예에 따른 LED와 반사기의 측면도를 나타낸다.
도 6은 본 발명의 다른 실시예에 따른 LED와 렌즈의 측면도를 나타낸다.
도 7a 및 7b는 도 6으로부터의 렌즈의 사각형 및 원형 구성의 상면도들을 나타낸다.
도 7c는 3면을 갖는 에지 방출형(three sided edge emitter) LED 및 그와 함께 사용되는 렌즈의 상면도를 나타낸다.
도 8은 광의 각도 방향 혼합(angular mixing)을 개선하기 위해 수직으로 배향된 변화하는 각이 있는 벽들을 구비한 입구 표면들을 갖는 렌즈의 일부분을 갖는 LED의 상면도를 나타낸다.
도 9a ~ 9c는 몰드된 리드 프레임을 이용하여 렌즈를 제조하는 실시예들을 나타낸다.
도 9d 및 9e는 형상화된 기판(shaped substrate)의 실시예를 나타낸다.
도 10은 복수의 LED의 분포를 포함하는 백라이트의 상면도를 나타낸다.
도 11은 도 10으로부터의 백라이트의 일부분의 단면도이다.
도 12는 광학 셀들을 구비한 다른 유형의 백라이트의 부분 단면도이다.
도 13은 도 12로부터의 백라이트의 상면도를 나타낸다.
도 14 및 15는 셀들 간의 경계선들에 위치한 LED들을 구비하는, 도 13에 도시된 것과 유사한, 백라이트 내의 복수의 셀들을 나타낸다.
Claims (15)
- 측면 방출, 비레이징(non-lasing) LED(light emitting diode)(10) - 상기 LED는 복수의 발광 측벽들을 갖고, 각각의 발광 측벽은 상부 및 하부를 갖고, 상기 LED는 측면 방출 렌즈의 사용없이 자신의 발광 측벽들로부터 광을 방출함 - ; 및
광학 요소(70) - 상기 LED의 발광 측벽들 각각은 상기 광학 요소에 광학적으로 연결되고, 상기 광학 요소는 하부 에지를 가지고, 상기 광학 요소의 상기 하부 에지 아래로 향하는 광은 상기 광학 요소에 진입하지 않고, 상기 광학 요소의 상기 하부 에지는 상기 발광 측벽의 하부에 또는 그 아래에 위치됨 - ;
를 포함하고,
상기 광학 요소(70)는 시준 렌즈이고, 상기 LED(10)의 각각의 발광 측벽은 상기 시준 렌즈의 입구 영역에 광학적으로 연결되는, 조명 장치. - 제1항에 있어서,
상기 광학 요소(70)는 상기 LED(10)로부터의 측면 방출된 광을 전방으로 지향된 광으로 리다이렉트(redirect)하는 조명 장치. - 삭제
- 제1항에 있어서,
상기 LED(10)는, 상기 시준 렌즈의 하부 표면 형상으로 만들어지는 형상화된 상부 표면을 갖는 몰딩된 리드 프레임(80) 상에 탑재되며, 상기 시준 렌즈는 상기 몰딩된 리드 프레임 위에 몰딩되는 조명 장치. - 제1항에 있어서,
상기 LED(10)는 상기 시준 렌즈의 하부 표면 형상으로 만들어지는 형상화된 기판(90) 상에 탑재되고 상기 시준 렌즈는 상기 형상화된 기판 위에 몰딩되며 상기 LED는 개재되는 서브마운트없이 상기 형상화된 기판 상에 탑재되는 조명 장치. - 제1항에 있어서,
상기 시준 렌즈는 상기 LED(10)의 측벽에 의해 방출된 광이 전달되는 입구 영역을 갖고, 상기 입구 영역은 하부 에지와 상부 에지를 갖고, 상기 입구 영역의 상기 상부 에지는 상기 발광 측벽의 상부에 또는 그 위에 위치되는 조명 장치. - 제1항에 있어서,
상부 표면을 갖는 서브마운트(22)를 더 포함하고, 상기 LED는 상기 서브마운트의 상부 표면에 탑재되는 조명 장치. - 제7항에 있어서,
상기 광학 요소(70)의 상기 하부 에지는 상기 서브마운트(22)의 상기 상부 표면에 또는 그 아래에 위치되는 조명 장치. - 제7항에 있어서,
상기 LED는,
플립칩 구성으로 상기 서브마운트(22)에 탑재되는 하부 표면 상의 컨택트들(94)을 갖는 반도체 발광 디바이스 - 상기 반도체 발광 디바이스는 상부 표면을 가짐 - ;
상기 반도체 발광 디바이스의 상부 표면 위의 파장 변환 재료(30) - 상기 파장 변환 재료는 측면 방출 측벽들인 측벽들과 상부 표면을 가짐 - ;
반사기(32) - 상기 반사기는, 상기 반사기 상에 부딪히는 실질적으로 모든 광이 상기 파장 변환 재료로 다시 리다이렉트 되도록 상기 반도체 발광 디바이스의 상부 표면에 실질적으로 평행하고 상기 파장 변환 재료의 상기 상부 표면 위에 있음 -
를 포함하는 조명 장치. - 제1항에 있어서,
상기 LED(10)는 백색광을 방출하는 조명 장치. - 제1항에 있어서,
상기 LED(10)는 0.5㎜ 미만의 두께를 갖는 조명 장치. - 측면 방출, 비레이징(non-lasing) LED(light emitting diode)(10) - 상기 LED는 복수의 발광 측벽들을 갖고, 각각의 발광 측벽은 상부 및 하부를 갖고, 상기 LED는 측면 방출 렌즈의 사용없이 자신의 발광 측벽들로부터 광을 방출함 - ; 및
광학 요소(70) - 상기 LED의 발광 측벽들 각각은 상기 광학 요소에 광학적으로 연결되고, 상기 광학 요소는 하부 에지를 가지고, 상기 광학 요소의 상기 하부 에지 아래로 향하는 광은 상기 광학 요소에 진입하지 않고, 상기 광학 요소의 상기 하부 에지는 상기 발광 측벽의 하부에 또는 그 아래에 위치됨 - ;
를 포함하고,
어레이 내의 대응하는 광학 요소들(70)을 구비하여 실장된 복수의 측면 방출, 비레이징 LED(10), 및 상기 LED들로부터의 측면 방출된 광을 수광하도록 광학적으로 연결되는 광가이드(36)를 더 포함하는 조명 장치. - 제1항에 있어서,
어레이 내의 대응하는 광학 요소들(70)을 구비하는 복수의 측면 방출, 비레이징 LED(10), 및 각각의 LED를 둘러싸는 셀룰러(cellular) 벽들(152b)을 더 포함하며, 각각의 셀룰러 벽은 광 확산 재료로 형성되는 조명 장치. - 삭제
- 삭제
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US11/840,129 US7652301B2 (en) | 2007-08-16 | 2007-08-16 | Optical element coupled to low profile side emitting LED |
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WO2009022316A3 (en) | 2009-09-03 |
US7652301B2 (en) | 2010-01-26 |
JP2010537400A (ja) | 2010-12-02 |
CN101779302A (zh) | 2010-07-14 |
CN101779302B (zh) | 2012-05-30 |
RU2477546C2 (ru) | 2013-03-10 |
EP2191521A2 (en) | 2010-06-02 |
TWI447941B (zh) | 2014-08-01 |
RU2010109737A (ru) | 2011-09-27 |
US20090045416A1 (en) | 2009-02-19 |
TW200929614A (en) | 2009-07-01 |
KR20100061686A (ko) | 2010-06-08 |
EP2191521B1 (en) | 2018-10-10 |
WO2009022316A2 (en) | 2009-02-19 |
JP5318100B2 (ja) | 2013-10-16 |
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