JP2008159435A - Luminaire - Google Patents

Luminaire Download PDF

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Publication number
JP2008159435A
JP2008159435A JP2006347703A JP2006347703A JP2008159435A JP 2008159435 A JP2008159435 A JP 2008159435A JP 2006347703 A JP2006347703 A JP 2006347703A JP 2006347703 A JP2006347703 A JP 2006347703A JP 2008159435 A JP2008159435 A JP 2008159435A
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Japan
Prior art keywords
light source
light
lens
shape
light emitting
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JP2006347703A
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JP4862649B2 (en
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Atsushi Imai
敦史 今井
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for expanding light from a light source 1 into a wide range as much as possible, in a luminaire controlling the light distribution of a light source 1 by a lens 3. <P>SOLUTION: This luminaire comprises: the light source 1 like an LED chip; a board 2 with the light source 1 mounted thereon; the awl-like lens 3 controlling the light from the light source 1; and a housing 4 housing them; wherein the center of the light emitting part of the light source 1 is nearly coincident with the center axis of the awl-like lens 3. The awl-like lens 3 may be formed into a conical shape or pyramid-like shape, but the cross-sectional shape of the lens 3 parallel to the light emitting surface of the light source 1 is set analogous to the shape of the light emitting part of the light source 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、レンズによって光源の配光を制御する照明器具に関するものである。   The present invention relates to a luminaire that controls light distribution of a light source by a lens.

従来の照明器具の構成の一例を図３、図４に示す。いずれもＬＥＤチップのような光源１と、この光源１を搭載した基板２と、光源１からの光を制御するレンズ３と、それらを収納する筐体４からなる。   An example of the configuration of a conventional lighting fixture is shown in FIGS. Each includes a light source 1 such as an LED chip, a substrate 2 on which the light source 1 is mounted, a lens 3 for controlling light from the light source 1, and a housing 4 for housing them.

図３に示す従来例１のレンズでは、曲面部での全反射を利用して配光の広がりを制御している。   In the lens of Conventional Example 1 shown in FIG. 3, the spread of light distribution is controlled by utilizing total reflection at the curved surface portion.

図４に示す従来例２のレンズでは、屈折した透過光により光を制御している。特許文献１には、図４に示すように、砲弾状のレンズ３をＬＥＤチップ（光源１）の前面に配置した照明器具が開示されている。
特開２００５−１９６９８３号公報 In the lens of Conventional Example 2 shown in FIG. 4, light is controlled by refracted transmitted light. Patent Document 1 discloses a lighting fixture in which a bullet-shaped lens 3 is arranged on the front surface of an LED chip (light source 1) as shown in FIG.
JP 2005-196983 A

従来例１（図３）の形状では、曲面部での全反射を利用して光を制御しており、広範囲に光を広げようとした場合に曲面部を高く設定する必要があるために、レンズ全体の大きさが大きくなってしまう。   In the shape of Conventional Example 1 (FIG. 3), light is controlled by utilizing total reflection at the curved surface portion, and it is necessary to set the curved surface portion high when attempting to spread light over a wide range. The overall size of the lens will increase.

特許文献１に例示されるような従来例２（図４）の形状では、光が光軸方向へ集まりやすくなるため、広がる方向の光は少なくなる。   In the shape of Conventional Example 2 (FIG. 4) as exemplified in Patent Document 1, since light tends to gather in the optical axis direction, the light in the spreading direction is reduced.

本発明は、光源からの光をできるだけ広範囲に広げるためのレンズ形状を有する照明器具を提供することを目的とする。   An object of this invention is to provide the lighting fixture which has a lens shape for extending the light from a light source as widely as possible.

請求項１の発明は、上記の課題を解決するために、図１、図２に示すように、光源１と光源の配光を制御するレンズ３とを備える照明器具において、レンズ３の形状を錐状としたことを特徴とするものである。   In order to solve the above problems, the invention of claim 1 is a lighting fixture including a light source 1 and a lens 3 for controlling the light distribution of the light source, as shown in FIGS. It is characterized by a conical shape.

ここで、錐状のレンズ３は円錐状としても良いし、角錐状としても構わない。   Here, the conical lens 3 may be conical or pyramidal.

請求項２の発明は、請求項１の照明器具において、光源１の発光面と水平なレンズ３の断面形状を光源１の発光部形状と相似形状としたことを特徴とする。   According to a second aspect of the present invention, in the lighting fixture of the first aspect, the cross-sectional shape of the lens 3 parallel to the light emitting surface of the light source 1 is similar to the shape of the light emitting portion of the light source 1.

本発明によれば、より広範囲の配光形状にするのにレンズ部の寸法を小さくすることができ、その結果、照明器具としての寸法も抑えられ、器具製造上、意匠上、優位とすることができる。   According to the present invention, it is possible to reduce the size of the lens portion in order to obtain a wider range of light distribution shapes. As a result, the size as a lighting fixture can also be suppressed, and it is advantageous in terms of fixture manufacturing and design. Can do.

（実施形態１）
本発明の実施形態１の全体構成を図１に示す。本発明の照明器具は、ＬＥＤチップのような光源１と、この光源１を搭載した基板２と、光源１からの光を制御する錐状のレンズ３と、それらを収納する筐体４からなる。筐体４の内面と基板２の間の空間は充填材５で充填しても良い。充填材５は透明樹脂などで構成される。光源１の発光部中心と錐状のレンズ３の中心軸は略一致している。 (Embodiment 1)
FIG. 1 shows the overall configuration of Embodiment 1 of the present invention. The luminaire of the present invention includes a light source 1 such as an LED chip, a substrate 2 on which the light source 1 is mounted, a conical lens 3 that controls light from the light source 1, and a housing 4 that houses them. . The space between the inner surface of the housing 4 and the substrate 2 may be filled with a filler 5. The filler 5 is made of a transparent resin or the like. The center of the light emitting part of the light source 1 and the central axis of the conical lens 3 are substantially coincident.

本実施形態では、レンズ３は円錐形状で形成し、円錐部３ａの斜面の角度は、光源１からの光が全反射するように設定し、光源１が鉛直下方向に向けて配置されているとき、水平方向へ光を射出するように構成する。円錐形状の周縁部３ｂは光源１からの光が透過光として射出されるように水平面もしくは曲面で形成し、鉛直下方向へも光を射出するように設定する。   In the present embodiment, the lens 3 is formed in a conical shape, the angle of the inclined surface of the conical portion 3a is set so that the light from the light source 1 is totally reflected, and the light source 1 is arranged vertically downward. Sometimes, it is configured to emit light in the horizontal direction. The conical peripheral portion 3b is formed in a horizontal plane or a curved surface so that light from the light source 1 is emitted as transmitted light, and is set so as to emit light in a vertically downward direction.

なお、錐状のレンズ３は、円錐状に限らず角錐状であっても良い。また、レンズ３は筐体４と一体化しても構わない。   Note that the conical lens 3 is not limited to a conical shape, and may be a pyramid shape. The lens 3 may be integrated with the housing 4.

（実施形態２）
本発明の実施形態２を図２に示す。レンズ３の形状として、前述の実施形態１では円錐形状を例に挙げており、光源１の発光部形状（破線で示す）が円状の場合はレンズ３を円錐状にすると光が均一となる。一方、光源１の発光部形状が図２に示すように四角などの形状の場合は、レンズ３の形状もそれに合わせた相似形状（角錐状など）とすれば、光の水平断面方向の照射パターンはより均一になる。 (Embodiment 2)
A second embodiment of the present invention is shown in FIG. As the shape of the lens 3, in the above-described first embodiment, the conical shape is taken as an example. When the light emitting portion shape (shown by a broken line) of the light source 1 is circular, the light is uniform when the lens 3 is conical. . On the other hand, when the shape of the light emitting portion of the light source 1 is a square shape as shown in FIG. 2, if the shape of the lens 3 is also a similar shape (such as a pyramid shape), the irradiation pattern in the horizontal cross-sectional direction of light. Becomes more uniform.

本実施形態では、レンズ３は四角錐形状で形成し、角錐部３ｃの斜面の角度は、光源１からの光が全反射するように設定し、光源１が鉛直下方向に向けて配置されているとき、水平方向へ光を射出するように構成する。四角錐形状の周縁部３ｂは光源１からの光が透過光として射出されるように水平面もしくは曲面で形成し、鉛直下方向へも光を射出するように設定する。   In the present embodiment, the lens 3 is formed in a quadrangular pyramid shape, and the angle of the inclined surface of the pyramid portion 3c is set so that the light from the light source 1 is totally reflected, and the light source 1 is arranged vertically downward. It is configured to emit light in the horizontal direction. The quadrangular pyramid-shaped peripheral edge portion 3b is formed in a horizontal plane or a curved surface so that light from the light source 1 is emitted as transmitted light, and is set so as to emit light in a vertically downward direction.

実施形態１，２では、光源１がＬＥＤチップ１個で構成されている場合を例示したが、複数個のＬＥＤチップが配置されていても構わない。また、ＬＥＤ以外の光源を用いても構わない。   In the first and second embodiments, the case where the light source 1 is configured by one LED chip is illustrated, but a plurality of LED chips may be disposed. Moreover, you may use light sources other than LED.

本発明の実施形態１を示す図であり、（ａ）は全体構成を示す縦断面図、（ｂ）は光射出部の構成を示す下面図である。It is a figure which shows Embodiment 1 of this invention, (a) is a longitudinal cross-sectional view which shows the whole structure, (b) is a bottom view which shows the structure of a light emission part. 本発明の実施形態２を示す図であり、（ａ）は全体構成を示す縦断面図、（ｂ）は光射出部の構成を示す下面図である。It is a figure which shows Embodiment 2 of this invention, (a) is a longitudinal cross-sectional view which shows the whole structure, (b) is a bottom view which shows the structure of a light emission part. 従来例１の概略構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows schematic structure of the prior art example 1. 従来例２の概略構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows schematic structure of the prior art example 2.

符号の説明Explanation of symbols

１ 光源
２ 基板
３ レンズ
４ 筐体 1 Light source 2 Substrate 3 Lens 4 Case

Claims (2)

光源と光源の配光を制御するレンズとを備える照明器具において、レンズの形状を錐状としたことを特徴とする照明器具。 A luminaire comprising a light source and a lens for controlling light distribution of the light source, wherein the lens has a cone shape. 請求項１において、光源の発光面と水平なレンズの断面形状を光源の発光部形状と相似形状としたことを特徴とする照明器具。 2. The lighting apparatus according to claim 1, wherein a cross-sectional shape of the light emitting surface of the light source and the horizontal lens is similar to the shape of the light emitting portion of the light source.
JP2006347703A 2006-12-25 2006-12-25 lighting equipment Active JP4862649B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015204057A1 (en) * 2015-03-06 2016-09-08 Osram Gmbh Making a lighting module

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003100873A1 (en) * 2002-05-28 2003-12-04 Matsushita Electric Works, Ltd. Light emitting element, light emitting device and surface emission illuminating device using it
JP2005514999A (en) * 2002-01-11 2005-05-26 ウルトラデント プロダクツ インコーポレイテッド Tapered lens and light curing device for increasing forward light intensity, and kit including these lenses
JP2005346970A (en) * 2004-05-31 2005-12-15 Canon Inc Lighting device and photography device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005514999A (en) * 2002-01-11 2005-05-26 ウルトラデント プロダクツ インコーポレイテッド Tapered lens and light curing device for increasing forward light intensity, and kit including these lenses
WO2003100873A1 (en) * 2002-05-28 2003-12-04 Matsushita Electric Works, Ltd. Light emitting element, light emitting device and surface emission illuminating device using it
JP2005346970A (en) * 2004-05-31 2005-12-15 Canon Inc Lighting device and photography device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015204057A1 (en) * 2015-03-06 2016-09-08 Osram Gmbh Making a lighting module
US9893230B2 (en) 2015-03-06 2018-02-13 Osram Gmbh Producing a lighting module

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