KR101775802B1 - 도광체, 도광체의 제조 방법, 광셔터 및 면광원 장치 - Google Patents
도광체, 도광체의 제조 방법, 광셔터 및 면광원 장치 Download PDFInfo
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- KR101775802B1 KR101775802B1 KR1020157009461A KR20157009461A KR101775802B1 KR 101775802 B1 KR101775802 B1 KR 101775802B1 KR 1020157009461 A KR1020157009461 A KR 1020157009461A KR 20157009461 A KR20157009461 A KR 20157009461A KR 101775802 B1 KR101775802 B1 KR 101775802B1
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
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- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
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- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0063—Means for improving the coupling-out of light from the light guide for extracting light out both the major surfaces of the light guide
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- G—PHYSICS
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- G—PHYSICS
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- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
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- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
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- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
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Abstract
[해결 수단] 대향하는 2개의 주면이 광출사면(6A, 6B)이고, 적어도 1개의 측단면이 광입사면(5)인 판형상의 도광체(4)로서, 적어도 한쪽 주면의 적어도 일부의 영역에 광출사 기구(6)가 형성되어 있고, 광출사 기구가 형성된 영역에 있어서의 담가가 3% 이하이며, 적어도 1개의 광입사면(5)으로부터 완전 확산광이 입사되었을 때에, 주면으로부터의 출사광(8)의 광도가 극대가 되는 각도(θA, θB)가, 주면의 법선을 중심으로 -60° 이상 +60° 이하의 범위 내에 있고, 출사광 효율이 15% 이zz상인 도광체(4).
Description
도 2는 본 발명의 일 실시형태에 따른 도광체의 1개의 측단면으로부터 광이 입사되었을 때의, 주면으로부터의 출사광의 상태를 나타내는 모식 측면도 및 모식 상면도이다.
도 3은 본 발명의 일 실시형태에 따른 도광체의 주면으로부터의 출사광 패턴 a를 나타내는 도면이다.
도 4는 본 발명의 일 실시형태에 따른 도광체의 주면으로부터의 출사광 패턴 b를 나타내는 도면이다.
도 5는 본 발명의 일 실시형태에 따른 도광체의 주면으로부터의 출사광 패턴 c를 나타내는 도면이다.
도 6은 본 발명의 일 실시형태에 따른 도광체의 주면으로부터의 출사광 패턴 d를 나타내는 도면이다.
도 7은 본 발명의 도광체를 이용한 광셔터 또는 면광원 장치의 일 실시형태의 모식 측면도이다.
도 8은 본 발명의 도광체를 이용한 광셔터 또는 면광원 장치의 일 실시형태의 모식 측면도이다.
도 9는 본 발명의 도광체의 출사 극대 각도를 측정하는 장치의 일례를 나타내는 모식도이다.
도 10은 본 발명의 도광체의 출사광 효율을 측정하는 장치의 일례를 나타내는 모식도이다.
도 11은 대향하는 2개의 측단면을 광입사면으로 한 본 발명의 도광체를 이용한 광셔터 또는 면광원 장치의 일 실시형태의 모식 측면도 및 모식 상면도이다.
도 12는 본 발명의 도광체의 일 실시형태를 나타내는 모식 측면도이다.
2: 위로부터 본 오목부
3: LED 광원
4: 도광체
5: 광입사면
6: 광출사 기구
6A: 광출사 기구를 갖지 않는 광출사면
6B: 광출사 기구를 갖는 광출사면
7: LED 광원으로부터 출사된 광
8: 광출사면으로부터 출사되는 광
9: 휘도계
10: 도광체 시험편
11: 차광 커버
12: 반달꼴 적분구
13: 광속 검출기
14: 커버
15: 광셔터용 시험편
16: 차광 커버
17A: 저굴절률 수지층
17B: 고굴절률 수지층
Claims (6)
- 대향하는 2개의 주면(主面)이 광출사면이고, 적어도 1개의 측단면(側端面)이 광입사면인 판형상의 도광체로서, 적어도 한쪽 주면의 적어도 일부의 영역에 광출사 기구가 형성되어 있고, 광출사 기구가 형성된 영역에 있어서의 담가(曇價)가 3% 이하이며, 출사광 효율이 15% 이상이고,
적어도 1개의 광입사면으로부터 완전 확산광이 입사되었을 때에, 한쪽 주면의 광출사 기구가 형성된 영역으로부터의 출사광의 광도가 극대가 되는 각도가, 주면의 법선을 중심으로 -30° 이상 +30° 이하의 범위 내에 있고, 다른 한쪽 주면의 광출사 기구가 형성된 영역으로부터의 출사광의 광도가 극대가 되는 각도가, -60° 이상 -30° 이하의 범위 내, +30° 이상 +60° 이하의 범위 내, 또는 -60° 이상 -30° 이하와 +30° 이상 +60° 이하의 범위 내로부터 선택되는 적어도 1종 범위 내에 있는 도광체. - 삭제
- 대향하는 2개의 주면이 광출사면이고, 적어도 1개의 측단면이 광입사면인 판형상의 도광체로서, 적어도 한쪽 주면의 적어도 일부의 영역에 광출사 기구로서 미소한 오목부 또는 볼록부가 형성되어 있고, 오목부의 깊이 또는 볼록부의 높이가 30㎛ 이상 70㎛ 이하이며, 오목부 또는 볼록부의 직경이 40㎛ 이상 150㎛ 이하이고, 오목부 또는 볼록부의 면 밀도가 1평방인치당 450도트 이상 5,000도트 이하이고,
적어도 1개의 광입사면으로부터 완전 확산광이 입사되었을 때에, 한쪽 주면의 광출사 기구가 형성된 영역으로부터의 출사광의 광도가 극대가 되는 각도가, 주면의 법선을 중심으로 -30° 이상 +30° 이하의 범위 내에 있고, 다른 한쪽 주면의 광출사 기구가 형성된 영역으로부터의 출사광의 광도가 극대가 되는 각도가, -60° 이상 -30° 이하의 범위 내, +30° 이상 +60° 이하의 범위 내, 또는 -60° 이상 -30° 이하와 +30° 이상 +60° 이하의 범위 내로부터 선택되는 적어도 1종 범위 내에 있는 도광체. - 도광체 원판의 적어도 한쪽 주면의 적어도 일부의 영역에 레이저광을 조사하여, 광출사 기구를 형성하는 제 1 항 또는 제 3 항에 기재된 도광체의 제조 방법.
- 제 1 항 또는 제 3 항에 기재된 도광체의 광입사면에 대향하여 광원이 배치되어 있는 광셔터.
- 제 1 항 또는 제 3 항에 기재된 도광체의 광입사면에 대향하여 광원이 배치되어 있는 면광원 장치.
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CN104769351A (zh) | 2015-07-08 |
JP6424428B2 (ja) | 2018-11-21 |
US9507072B2 (en) | 2016-11-29 |
TWI601989B (zh) | 2017-10-11 |
KR20150058318A (ko) | 2015-05-28 |
JPWO2014065304A1 (ja) | 2016-09-08 |
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US20150301262A1 (en) | 2015-10-22 |
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