JP2005122969A - Lighting system - Google Patents

Lighting system Download PDF

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JP2005122969A
JP2005122969A JP2003354859A JP2003354859A JP2005122969A JP 2005122969 A JP2005122969 A JP 2005122969A JP 2003354859 A JP2003354859 A JP 2003354859A JP 2003354859 A JP2003354859 A JP 2003354859A JP 2005122969 A JP2005122969 A JP 2005122969A
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light source
opening
light
lens
frame
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JP2003354859A
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Kazuhiro Daijo
和宏 大條
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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  • Planar Illumination Modules (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system which can be made further thinner. <P>SOLUTION: A light sources 3 such as an LED is disposed in the direction almost perpendicular to the direction of the opening of an opening part 2 (light radiation port) of a frame body 1. A reflecting plate 4 is slantingly disposed in front of the light source 3 to reflect the light flux from the light source 3 to the opening part 2 of the frame body 1. Between the light source 3 and the reflecting plate 4, a lens 5 is disposed to prevent unevenness of the light from the opening part 2. A plurality of light source 3 can be used and a lens configuration can be formed for every light source. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、携帯情報端末等に搭載されるカメラ用の人工光源等として使用される照明装置に関し、特に、ＬＥＤを光源とした照明装置に関する。   The present invention relates to an illumination device used as an artificial light source for a camera mounted on a portable information terminal or the like, and more particularly to an illumination device using an LED as a light source.

近年、ＬＥＤ（発光ダイオード）の高輝度化に伴って、当該ＬＥＤが各種の光源として用いられている（例えば、特許文献１参照）。特に、最近では、携帯電話等の小型の携帯機器に搭載し、カメラ用の人工光源等として使用する照明装置が公知となっている。   In recent years, as LEDs (light emitting diodes) have increased in brightness, the LEDs have been used as various light sources (see, for example, Patent Document 1). In particular, recently, lighting devices that are mounted on small portable devices such as mobile phones and used as artificial light sources for cameras have become known.

図４は従来の照明装置の断面構造図である。図４に示すように、特許文献１等、ＬＥＤによる光源３を使用する従来の照明装置においては、光源３の先にレンズ９および枠体１０の開口部（光照射口）１１を配置する縦配置となっている。
特開２０００−５８９２５号公報 FIG. 4 is a sectional view of a conventional lighting device. As shown in FIG. 4, in a conventional illumination device using a light source 3 using an LED, such as Patent Literature 1, a lens 9 and an opening (light irradiation port) 11 of a frame 10 are arranged at the front of the light source 3. It is an arrangement.
JP 2000-58925 A

しかし、このような従来の照明装置においては、以下のような問題があった。すなわち、上記のような縦配置に構成すると、照明装置を搭載する携帯機器の厚みを光源３の縦方向の長さｂ、光源３の発光をできるだけ均一に拡散させるための光源−レンズ間距離ｃおよびレンズ厚ｄをすべて加算したｂ＋ｃ＋ｄ以上にする必要があり、特に、携帯機器がさらに薄型化している現在、照明装置の厚みにより携帯機器の薄型化が阻害される場合が生じ得るという問題があった。   However, such a conventional lighting device has the following problems. That is, when configured in the vertical arrangement as described above, the thickness of the portable device in which the illumination device is mounted is set to the length b of the light source 3 in the vertical direction, and the distance c between the light source and the lens for diffusing the light emission of the light source 3 as uniformly as possible. In addition, it is necessary that the total thickness of the lens d is equal to or more than b + c + d. In particular, when the portable device is further thinned, there is a problem that the thinning of the portable device may be hindered by the thickness of the lighting device. It was.

本発明は、かかる従来技術の問題点を解決するべくなされたもので、より薄型に構成可能な照明装置を提供することを目的とする。   The present invention has been made to solve the problems of the prior art, and an object thereof is to provide an illuminating device that can be made thinner.

本発明に係る照明装置は、開口部を有する枠体と、前記開口部の開口方向に対して、発光方向が略直角になるように配置された光源と、前記光源の前方に当該光源からの光束を前記開口部に向けるべく傾斜配置された反射板とを具備するものである。   An illumination device according to the present invention includes a frame having an opening, a light source arranged so that a light emission direction is substantially perpendicular to the opening direction of the opening, and a light source from the light source in front of the light source. And a reflector that is inclined to direct the light beam toward the opening.

上記構成に係る照明装置によれば、ＬＥＤ等の光源が枠体の開口部（光照射口）の開口方向に対して、発光方向が略直角に配置される。そして、反射板が当該光源からの光束を枠体の開口部に反射させるべく、傾斜して配置される。   According to the illuminating device according to the above configuration, the light source such as the LED is arranged so that the light emission direction is substantially perpendicular to the opening direction of the opening (light irradiation port) of the frame. And a reflecting plate is inclined and arranged so that the light beam from the said light source may be reflected in the opening part of a frame.

したがって、光学系を枠体の開口部の開口方向に対して略直角方向に伸ばすことができるため、枠体の開口部方向の厚みをより薄型に形成することができる。   Therefore, since the optical system can be extended in a direction substantially perpendicular to the opening direction of the opening of the frame, the thickness of the frame in the opening can be made thinner.

好ましくは、前記光源と、前記反射板との間にレンズを設けるように構成される。   Preferably, a lens is provided between the light source and the reflector.

この場合、枠体の開口部の開口方向に対して略直角に伸びた光学系において光源からの光束を反射板に導くレンズを光源の発光方向に配置する。これにより、レンズの厚さが枠体の開口部方向の厚みに影響を与えないため、より薄型に構成可能となる。   In this case, a lens for guiding the light beam from the light source to the reflecting plate in the optical system extending substantially perpendicular to the opening direction of the opening of the frame is disposed in the light emitting direction of the light source. Thereby, since the thickness of the lens does not affect the thickness of the frame body in the opening direction, it can be configured to be thinner.

さらに好ましくは、前記光源は、複数あり、前記レンズは、前記光源毎に対応するレンズ形状を有するように構成される。   More preferably, there are a plurality of light sources, and the lens is configured to have a lens shape corresponding to each light source.

この場合、光源が複数配置され、その光源毎の光を制御するレンズ形状を有するレンズが配置される。これにより、光源からの光束を枠体の開口部面にむらなく照射することができるとともに効率を上げることができる。   In this case, a plurality of light sources are arranged, and a lens having a lens shape for controlling the light for each light source is arranged. Thereby, the luminous flux from the light source can be irradiated evenly on the opening surface of the frame, and the efficiency can be increased.

本発明に係る照明装置によれば、光学系を枠体の開口部の開口方向に対して略直角方向に伸ばすことができるため、枠体の開口部方向の厚みをより薄型に形成することができる。   According to the illumination device of the present invention, since the optical system can be extended in a direction substantially perpendicular to the opening direction of the opening of the frame, the thickness in the opening of the frame can be made thinner. it can.

以下、添付図面を参照しつつ、本発明を実施するための最良の形態について説明する。図１は本発明の一実施形態に係る照明装置の分解構造図である。また、図２は図１の照明装置の上面図である。   The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an exploded structural view of a lighting device according to an embodiment of the present invention. FIG. 2 is a top view of the lighting device of FIG.

本実施の形態に係る照明装置は、開口部２を有する枠体１と、前記開口部２の開口方向に対して、発光方向が略直角になるように配置された光源３と、前記光源３の前方に当該光源３からの光束を前記開口部２に向けるべく傾斜配置された反射板と４を具備するものである。光源３は、基板７に電気接続されて取り付けられ、通電可能とされる。また、光源３が取り付けられた基板７に枠体１および反射板４が取り付けられた後、枠体１の開口部２に例えば透明または半透明の樹脂材料よりなる上蓋６が取り付けられて照明装置が構成される。   The illuminating device according to the present embodiment includes a frame 1 having an opening 2, a light source 3 arranged so that a light emission direction is substantially perpendicular to the opening direction of the opening 2, and the light source 3. Is provided with a reflector 4 and an inclined plate 4 arranged so as to direct the light beam from the light source 3 toward the opening 2. The light source 3 is attached by being electrically connected to the substrate 7 and can be energized. In addition, after the frame body 1 and the reflector 4 are attached to the substrate 7 to which the light source 3 is attached, an upper lid 6 made of, for example, a transparent or translucent resin material is attached to the opening 2 of the frame body 1 to provide an illumination device Is configured.

図３は図２のｘ−ｘ断面図である。上記構成に係る照明装置によれば、図３に示すように、ＬＥＤ等の光源３が枠体１の開口部２（光照射口）の開口方向に対して、発光方向が略直角になるように配置される。そして、反射板４が当該光源３からの光束を枠体１の開口部２に反射させるべく、傾斜して配置される。本実施形態においては、反射板４を傾斜配置させるために傾斜面を有する傾斜台８を枠体１に取り付けている。ここで、本実施形態においては、傾斜板４で反射した光束が広範囲に広がるようにやや湾曲した傾斜板４を用いているが、直線板等種々適用可能である。   3 is a sectional view taken along line xx of FIG. According to the illuminating device according to the above configuration, as shown in FIG. 3, the light source 3 such as an LED has a light emission direction substantially perpendicular to the opening direction of the opening 2 (light irradiation port) of the frame 1. Placed in. Then, the reflector 4 is disposed so as to be inclined so as to reflect the light beam from the light source 3 to the opening 2 of the frame 1. In the present embodiment, an inclined table 8 having an inclined surface is attached to the frame body 1 in order to arrange the reflecting plate 4 in an inclined manner. Here, in the present embodiment, the inclined plate 4 that is slightly curved so that the light beam reflected by the inclined plate 4 spreads over a wide range is used, but various applications such as a linear plate are applicable.

上記のように、光学系を枠体１の開口部２の開口方向に対して略垂直方向に伸ばすことができるため、枠体１の開口部２方向の厚みｅをより薄型に形成することができる。すなわち、照明装置の厚みを光源３の幅ａだけを考慮して設定することができる。また、ＬＥＤ等の光源３は、図４に示すように、縦方向の長さｂより横方向長さ（幅）ａの方が短いことが多いので照明装置をより薄型に形成することができる。なお、照明装置としては、光の拡散具合を考慮して光源３の幅ａと上蓋６との間に若干の空間を設ける必要がある場合もあるが、これを考慮に入れたとしても縦配置である従来型の照明装置に比べて非常に薄く形成することができる。   As described above, since the optical system can be extended in a direction substantially perpendicular to the opening direction of the opening 2 of the frame body 1, the thickness e in the opening 2 direction of the frame body 1 can be formed thinner. it can. That is, the thickness of the lighting device can be set considering only the width a of the light source 3. Further, as shown in FIG. 4, the light source 3 such as an LED is often shorter in the horizontal length (width) a than the vertical length b, so that the lighting device can be formed thinner. . In some cases, it is necessary to provide a slight space between the width “a” of the light source 3 and the upper lid 6 in consideration of the degree of light diffusion. However, even if this is taken into consideration, the lighting device is arranged vertically. It can be formed very thin compared to the conventional lighting device.

本実施形態においては、図３に示されるように、前記光源３と、前記反射板４との間にレンズ５がさらに設けられるように構成される。   In the present embodiment, as shown in FIG. 3, a lens 5 is further provided between the light source 3 and the reflection plate 4.

この場合、枠体１の開口部２の開口方向に対して略直角方向に伸びた光学系において光源３からの光束を反射板４に導くレンズ５を光源３の発光方向に配置する。これにより、レンズ５の厚さが枠体１の開口部２方向の厚みｅに影響を与えないため、より薄型に構成可能となる。なお、光の拡散具合を考慮して図３のように光源３の幅ａよりもレンズ５の厚みが大きい場合も考えられるが、この場合であっても、レンズ５の厚みのみを考慮して照明装置を形成することができるため、光源３の縦方向の長さｂおよびレンズ厚ｄを加算しなければならない従来型に比べて、より薄型に形成することができる。   In this case, a lens 5 that guides the light beam from the light source 3 to the reflection plate 4 in the optical system extending in a direction substantially perpendicular to the opening direction of the opening 2 of the frame 1 is disposed in the light emission direction of the light source 3. Thereby, since the thickness of the lens 5 does not affect the thickness e of the frame 1 in the direction of the opening 2, the lens 5 can be configured to be thinner. Considering the degree of light diffusion, there may be a case where the thickness of the lens 5 is larger than the width a of the light source 3 as shown in FIG. 3, but even in this case, only the thickness of the lens 5 is considered. Since an illuminating device can be formed, it can be formed thinner than the conventional type in which the length b of the light source 3 and the lens thickness d must be added.

また、図１〜図３に示されるように、前記光源３は、複数あり、前記レンズ５は、光源毎の光を制御するレンズ形状を有するように構成される。この場合レンズ５は１個でも複数でもよい。   1 to 3, there are a plurality of the light sources 3, and the lens 5 is configured to have a lens shape for controlling light for each light source. In this case, the number of lenses 5 may be one or more.

この場合、光源３が複数配置され、その光源毎の光を制御するレンズ形状を有するレンズが配置される。これにより、光源からの光束を枠体の開口部面にむらなく照射することができるとともに効率を上げることができる。   In this case, a plurality of light sources 3 are arranged, and a lens having a lens shape for controlling light for each light source is arranged. Thereby, the luminous flux from the light source can be irradiated evenly on the opening surface of the frame, and the efficiency can be increased.

本発明に係る照明装置は、光学系を枠体の開口部の開口方向に対し略直角方向に伸ばすことができるため、枠体の開口部方向の厚みをより薄型に形成することができるという効果を奏し、携帯情報端末等に搭載されるカメラ用の人工光源等として使用される照明装置、特に、ＬＥＤを光源とした照明装置等として有用である。   Since the illumination device according to the present invention can extend the optical system in a direction substantially perpendicular to the opening direction of the opening of the frame, the thickness of the opening of the frame can be reduced. And is useful as an illumination device used as an artificial light source for a camera mounted on a portable information terminal or the like, particularly as an illumination device using an LED as a light source.

本発明に係る照明装置は、光学系を枠体の開口部の開口方向に対して略直角方向に伸ばすことができるため、枠体の開口部方向の厚みをより薄型に形成することができるという効果が必要な技術分野等の用途にも適用できる。   Since the illumination device according to the present invention can extend the optical system in a direction substantially perpendicular to the opening direction of the opening of the frame, the thickness of the opening of the frame can be made thinner. It can also be applied to applications such as technical fields that require effects.

本発明の一実施形態に係る照明装置の分解構造図1 is an exploded structural view of a lighting device according to an embodiment of the present invention. 図１の照明装置の上面図Top view of the lighting device of FIG. 図２のｘ−ｘ断面図Xx sectional drawing of FIG. 従来の照明装置の断面構造図Cross-sectional structure diagram of a conventional lighting device

符号の説明Explanation of symbols

１ 枠体
２ 開口部
３ 光源
４ 反射板
５ レンズ
1 Frame 2 Opening 3 Light Source 4 Reflector 5 Lens

Claims (3)

開口部を有する枠体と、
前記開口部の開口方向に対して、発光方向が略直角になるように配置された光源と、
前記光源の前方に当該光源からの光束を前記開口部に向けるべく傾斜配置された反射板とを具備する照明装置。 A frame having an opening;
A light source disposed so that a light emitting direction is substantially perpendicular to an opening direction of the opening;
A lighting device comprising: a reflector disposed in front of the light source so as to be inclined to direct a light beam from the light source toward the opening. 前記光源と、前記反射板との間にレンズを設けたことを特徴とする請求項１記載の照明装置。 The lighting device according to claim 1, wherein a lens is provided between the light source and the reflecting plate. 前記光源は、複数あり、
前記レンズは、前記光源毎に対応するレンズ形状を有することを特徴とする請求項２記載の照明装置。

There are a plurality of the light sources,
The lighting device according to claim 2, wherein the lens has a lens shape corresponding to each light source.

JP2003354859A 2003-10-15 2003-10-15 Lighting system Pending JP2005122969A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009518788A (en) * 2005-12-06 2009-05-07 アーノルド・ウント・リヒター・シネ・テヒニク・ゲーエムベーハー・ウント・コンパニ・ベトリーブス・カーゲー Two-dimensional lighting device
WO2009093583A1 (en) * 2008-01-25 2009-07-30 Showa Denko K.K. Display device and light emitting device
TWI385819B (en) * 2007-07-06 2013-02-11 Advanced Optoelectronic Tech Illumination system employng led and led thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009518788A (en) * 2005-12-06 2009-05-07 アーノルド・ウント・リヒター・シネ・テヒニク・ゲーエムベーハー・ウント・コンパニ・ベトリーブス・カーゲー Two-dimensional lighting device
TWI385819B (en) * 2007-07-06 2013-02-11 Advanced Optoelectronic Tech Illumination system employng led and led thereof
WO2009093583A1 (en) * 2008-01-25 2009-07-30 Showa Denko K.K. Display device and light emitting device

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