JP2014078432A5 - - Google Patents
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- JP2014078432A5 JP2014078432A5 JP2012226034A JP2012226034A JP2014078432A5 JP 2014078432 A5 JP2014078432 A5 JP 2014078432A5 JP 2012226034 A JP2012226034 A JP 2012226034A JP 2012226034 A JP2012226034 A JP 2012226034A JP 2014078432 A5 JP2014078432 A5 JP 2014078432A5
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- light
- light guide
- reflection
- guide plate
- light incident
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- 238000005286 illumination Methods 0.000 claims description 16
- 230000000295 complement Effects 0.000 claims description 2
- 230000002093 peripheral Effects 0.000 claims description 2
Description
（１）光源と、該光源が配置される入光面、該入光面から入射した光を出射する出射面、該出射面と対向する反射面を有する導光板と、該導光板の反射面に沿って配置される反射シートと、を備え、前記導光板は、前記出射面を含む面側の前記出射面よりも前記入光面寄りの領域に設けられた第１の傾斜面と、前記反射面を含む面側の前記反射面よりも前記入光面寄りの領域に設けられた第２の傾斜面とを有し、前記第１及び第２の傾斜面のそれぞれは、前記入光面から離れるほど前記導光板の厚みが小さくなるように傾斜させて形成されており、前記第２の傾斜面の前方側の端辺の導光方向の位置と、前記反射シートの前記入光面側の外周端面の導光方向の位置とが略一致していることを特徴とする面状照明装置（請求項１）。 (1) A light source, a light incident surface on which the light source is disposed, an output surface that emits light incident from the light incident surface, a light guide plate having a reflective surface facing the output surface, and a reflective surface of the light guide plate The light guide plate is provided with a first inclined surface provided in a region closer to the light incident surface than the light emission surface on the surface side including the light emission surface; A second inclined surface provided in a region closer to the light incident surface than the reflective surface on the surface side including the reflective surface, and each of the first and second inclined surfaces is the light incident surface The light guide plate is formed to be inclined so that the thickness of the light guide plate decreases as the distance from the light guide plate increases. The position of the front side edge of the second inclined surface in the light guide direction and the light incident surface side of the reflective sheet The planar illumination device (Claim 1) characterized in that the position in the light guide direction of the outer peripheral end face of the lamp substantially coincides .
（２）（１）項に記載の面状照明装置において、前記第２の傾斜面に対して前記反射シートとは別体の反射部材が適用されていることを特徴とする状照明装置（請求項２）。
（３）（２）項に記載の面状照明装置において、前記反射部材は、前記第２の傾斜面と前記反射シートの裏面と面一の仮想面とで挟まれた空間を補完するような楔状をなすことを特徴とする面状照明装置（請求項３）。
(2) In the planar illumination device according to item (1) , a reflection member separate from the reflection sheet is applied to the second inclined surface (claim). Item 2).
(3) In the planar illumination device according to (2), the reflection member complements a space sandwiched between the second inclined surface, the back surface of the reflection sheet, and a virtual surface that is flush with the second inclined surface. A planar illumination device having a wedge shape (Claim 3).
（４）（１）から（３）のいずれか１項に記載の面状照明装置において、前記第１の傾斜面と前記第２の傾斜面の導光方向の長さが略等しいことを特徴とする状照明装置（請求項４）。 ( 4 ) In the planar illumination device according to any one of (1) to (3), the lengths in the light guide direction of the first inclined surface and the second inclined surface are substantially equal. A lighting device (claim 4) .
（５）（１）から（４）のいずれか１項に記載の面状照明装置において、前記入光面の前記反射面を含む側の端辺の厚み方向の位置と、前記反射シートの前記導光板側を向く面の反対側の面の厚み方向の位置とが略一致していることを特徴とする面状照明装置（請求項５）。 ( 5 ) In the planar illumination device according to any one of (1) to (4), a position in a thickness direction of an end side of the light incident surface including the reflective surface, and the reflection sheet a planar illumination device position in the thickness direction of the opposite side of the surface facing the light guide plate and which is characterized in that substantially matches (claim 5).
（６）光源と、該光源が配置される入光面、該入光面から入射した光を出射する出射面、該出射面と対向する反射面を有する導光板と、該導光板の反射面に沿って配置される反射シートと、を備え、前記導光板は、前記出射面を含む面側の前記出射面よりも前記入光面寄りの領域に設けられた第１の傾斜面と、前記反射面を含む面側の前記反射面よりも前記入光面寄りの領域に設けられた第２の傾斜面とを有し、前記第１及び第２の傾斜面のそれぞれは、前記入光面から離れるほど前記導光板の厚みが小さくなるように傾斜させて形成されており、前記入光面の前記反射面を含む側の端辺の厚み方向の位置と、前記反射シートの前記導光板側を向く面の反対側の面の厚み方向の位置とが略一致していることを特徴とする面状照明装置（請求項６）。 ( 6 ) A light source, a light incident surface on which the light source is disposed, an output surface that emits light incident from the light incident surface, a light guide plate having a reflective surface facing the output surface, and a reflective surface of the light guide plate The light guide plate is provided with a first inclined surface provided in a region closer to the light incident surface than the light emission surface on the surface side including the light emission surface; A second inclined surface provided in a region closer to the light incident surface than the reflective surface on the surface side including the reflective surface, and each of the first and second inclined surfaces is the light incident surface The light guide plate is formed to be inclined so that the thickness of the light guide plate decreases as the distance from the light guide plate increases. The position of the light incident surface on the side including the reflection surface in the thickness direction, and the light guide plate side of the reflection sheet planar lighting device characterized by the position of the thickness direction of the opposite side of the surface facing substantially coincides (according 6).
（７）（６）項に記載の面状照明装置において、前記第１の傾斜面と前記第２の傾斜面とが、前記導光板を厚み方向に二分する仮想平面に対して非対称な形状であることを特徴とする面状照明装置（請求項７）。
（８）（６）または（７）項に記載の面状照明装置において、前記第２の傾斜面は、前記第１の傾斜面と比較して、導光方向の長さが小さいことを特徴とする請求項６または７に記載の面状照明装置（請求項８）。
( 7 ) In the planar illumination device according to (6) , the first inclined surface and the second inclined surface are asymmetric with respect to a virtual plane that bisects the light guide plate in the thickness direction. planar illumination device, characterized in that there (claim 7).
(8) In the planar illumination device according to (6) or (7), the second inclined surface has a smaller length in the light guide direction than the first inclined surface. A planar illumination device according to claim 6 or 7 (claim 8).
Claims (8)
前記導光板は、前記出射面を含む面側の前記出射面よりも前記入光面寄りの領域に設けられた第１の傾斜面と、前記反射面を含む面側の前記反射面よりも前記入光面寄りの領域に設けられた第２の傾斜面とを有し、The light guide plate includes a first inclined surface provided in a region closer to the light incident surface than the light emission surface on the surface side including the light emission surface, and a front surface of the reflection surface on the surface side including the reflection surface. A second inclined surface provided in a region near the writing light surface,
前記第１及び第２の傾斜面のそれぞれは、前記入光面から離れるほど前記導光板の厚みが小さくなるように傾斜させて形成されており、Each of the first and second inclined surfaces is formed so as to be inclined so that the thickness of the light guide plate decreases as the distance from the light incident surface increases.
前記第２の傾斜面の前方側の端辺の導光方向の位置と、前記反射シートの前記入光面側の外周端面の導光方向の位置とが略一致していることを特徴とする面状照明装置。The position in the light guide direction of the edge on the front side of the second inclined surface and the position in the light guide direction of the outer peripheral end surface on the light incident surface side of the reflection sheet are substantially the same. Planar lighting device.
前記導光板は、前記出射面を含む面側の前記出射面よりも前記入光面寄りの領域に設けられた第１の傾斜面と、前記反射面を含む面側の前記反射面よりも前記入光面寄りの領域に設けられた第２の傾斜面とを有し、
前記第１及び第２の傾斜面のそれぞれは、前記入光面から離れるほど前記導光板の厚みが小さくなるように傾斜させて形成されており、
前記入光面の前記反射面を含む側の端辺の厚み方向の位置と、前記反射シートの前記導光板側を向く面の反対側の面の厚み方向の位置とが略一致していることを特徴とする面状照明装置。 A light guide plate having a light source, a light incident surface on which the light source is disposed, a light emission surface that emits light incident from the light incident surface, a reflection surface that faces the light emission surface, and a reflection surface of the light guide plate A reflective sheet to be disposed;
The light guide plate includes a first inclined surface provided in a region closer to the light incident surface than the light emission surface on the surface side including the light emission surface, and a front surface of the reflection surface on the surface side including the reflection surface. A second inclined surface provided in a region near the writing light surface,
Each of the first and second inclined surfaces is formed so as to be inclined so that the thickness of the light guide plate decreases as the distance from the light incident surface increases.
The position in the thickness direction of the edge of the light incident surface on the side including the reflection surface is substantially the same as the position in the thickness direction of the surface on the opposite side of the surface facing the light guide plate side of the reflection sheet. A surface illumination device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012226034A JP6177514B2 (en) | 2012-10-11 | 2012-10-11 | Surface lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012226034A JP6177514B2 (en) | 2012-10-11 | 2012-10-11 | Surface lighting device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014078432A JP2014078432A (en) | 2014-05-01 |
| JP2014078432A5 true JP2014078432A5 (en) | 2015-08-06 |
| JP6177514B2 JP6177514B2 (en) | 2017-08-09 |
Family
ID=50783579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012226034A Active JP6177514B2 (en) | 2012-10-11 | 2012-10-11 | Surface lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6177514B2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10247413A (en) * | 1997-03-03 | 1998-09-14 | Omron Corp | Surface light source device |
| JP2005339956A (en) * | 2004-05-26 | 2005-12-08 | Seiko Epson Corp | Lighting system, electro-optic device and electronic apparatus |
| JP4797824B2 (en) * | 2006-06-16 | 2011-10-19 | ソニー株式会社 | Light source device, display device |
| WO2010060029A1 (en) * | 2008-11-24 | 2010-05-27 | 3M Innovative Properties Company | Input edge coupler |
| JP5271733B2 (en) * | 2009-01-30 | 2013-08-21 | 株式会社ジャパンディスプレイウェスト | Illumination unit, electro-optical device, and electronic apparatus |
-
2012
- 2012-10-11 JP JP2012226034A patent/JP6177514B2/en active Active
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