JP3182629U - LED lighting device - Google Patents

LED lighting device Download PDF

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JP3182629U
JP3182629U JP2013000279U JP2013000279U JP3182629U JP 3182629 U JP3182629 U JP 3182629U JP 2013000279 U JP2013000279 U JP 2013000279U JP 2013000279 U JP2013000279 U JP 2013000279U JP 3182629 U JP3182629 U JP 3182629U
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light
led
lighting device
led lighting
translucent cover
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佳明 金子
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DOSHISHA CORPORATION
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Abstract

【課題】汎用ＬＥＤの採用を可能にしてコストを抑制しつつ、ＬＥＤ照明の外部に放出される青紫光線を低減したＬＥＤ照明装置を提供する。
【解決手段】筐体１と、透光カバー２と、筐体１及び透光カバー２によって包囲される空間ＳＰ内に配置されるＬＥＤ３ａ及びＬＥＤ３ａが実装された基板３と、ＬＥＤ３ａから透光カバー２を介して外部に放出される光の経路Ｌｉに配置され且つＬＥＤ３ａとは別の部材であって波長３８０〜４９５ｎｍ（ナノメートル）の光を減衰する光減衰部材４と、を有する。
【選択図】図１Provided is an LED lighting device that reduces the blue-violet light emitted to the outside of LED lighting while enabling the use of a general-purpose LED and suppressing the cost.
A housing, a translucent cover, an LED (3a) disposed in a space (SP) surrounded by the housing (1) and the translucent cover (2), a substrate (3) on which the LED (3a) is mounted, and the translucent cover from the LED (3a). And a light attenuating member 4 which is disposed in a path Li of light emitted to the outside through 2 and is a member different from the LED 3a and attenuates light having a wavelength of 380 to 495 nm (nanometers).
[Selection] Figure 1

Description

本考案は、ＬＥＤ（発光ダイオード）を光源とするＬＥＤ照明装置に関する。   The present invention relates to an LED lighting device using an LED (light emitting diode) as a light source.

近年、例えば特許文献１に示すように、ＬＥＤ（発光ダイオード）を光源とするＬＥＤ照明装置が普及しつつある。ＬＥＤ照明装置には、種々の形状があり、例えば透光カバーが部分球状をなす電球型、透光カバーが筒状をなす直管型、天井に取付けられ透光カバーが偏平形状をなすシーリング型などが挙げられる。   In recent years, for example, as shown in Patent Document 1, LED illumination devices using LEDs (light emitting diodes) as light sources are becoming widespread. The LED lighting device has various shapes, for example, a light bulb type in which the light-transmitting cover has a partial spherical shape, a straight tube type in which the light-transmitting cover has a cylindrical shape, and a ceiling type in which the light-transmitting cover is attached to the ceiling and has a flat shape. Etc.

実用新案登録第３１７４４０１号公報Utility Model Registration No. 3174401

ＬＥＤ照明装置は、消費電力が少なく節電に効果的であることから急速に普及しつつあるが、ＬＥＤから放出される光には青紫光線が含まれる。青紫光線は、可視領域内の３８０〜４９５ｎｍ（ナノメートル）の波長の光であり、可視光線であることから照明に必要不可欠の光であるものの、可視光線中で最もエネルギーが強く、目の奥の網膜まで達することから、人体に影響を与えるおそれがあるという考え方が指摘されている。   LED lighting devices are rapidly spreading because they consume less power and are effective for power saving, but light emitted from LEDs includes blue-violet light. Blue-violet light is a light with a wavelength of 380 to 495 nm (nanometers) in the visible region and is an indispensable light for illumination because it is a visible light. It has been pointed out that it may affect the human body because it reaches the retina.

さらに、夜間に青紫光線を見続けることは、サーカディアンリズム（昼夜の体内リズム）を狂わす原因の一つになり得るという考え方も指摘されている。   In addition, it has been pointed out that continuing to watch blue-violet rays at night can be one of the causes of upsetting circadian rhythms.

青紫光線を低減するアプローチの一つとして、青紫光線の発光を抑えるようにＬＥＤを開発することが考えられるが、コストが増大してしまうことが考えられる。   One approach to reducing blue-violet rays is to develop LEDs so as to suppress the emission of blue-violet rays, but it is thought that costs increase.

本考案は、このような課題に着目してなされたものであって、その目的は、汎用ＬＥＤの採用を可能にしてコストを抑制しつつ、ＬＥＤ照明の外部に放出される青紫光線を低減したＬＥＤ照明装置を提供することである。   The present invention has been made paying attention to such a problem, and its purpose is to reduce the blue-violet light emitted to the outside of the LED illumination while enabling the use of a general-purpose LED and suppressing the cost. An LED illumination device is provided.

本考案は、かかる目的を達成するために、次のような手段を講じたものである。   In order to achieve this object, the present invention takes the following measures.

すなわち、本考案のＬＥＤ照明装置は、筐体と、透光カバーと、前記筐体及び前記透光カバーによって包囲される空間内に配置されるＬＥＤ及びＬＥＤが実装された基板と、前記ＬＥＤから前記透光カバーを介して外部に放出される光の経路に配置され且つ前記ＬＥＤとは別の部材であって波長３８０〜４９５ｎｍ（ナノメートル）の光を減衰する光減衰部材とを、備える。   That is, the LED lighting device of the present invention includes a housing, a translucent cover, an LED disposed in a space surrounded by the housing and the translucent cover, a substrate on which the LED is mounted, and the LED. A light attenuating member disposed in a path of light emitted to the outside through the translucent cover and different from the LED and attenuating light having a wavelength of 380 to 495 nm (nanometers).

この構成によれば、光減衰部材によって青紫光線を有効に低減できることができる。それでいて、光減衰部材は、ＬＥＤとは別体であるので、汎用ＬＥＤの採用を可能にしてコストを抑制することが可能となる。   According to this configuration, the blue-violet light can be effectively reduced by the light attenuating member. Nevertheless, since the light attenuating member is separate from the LED, a general-purpose LED can be adopted and the cost can be reduced.

本考案の一構成として、前記光減衰部材は、板状の透光部材であり、前記ＬＥＤを覆うように前記基板に取付けられていることが挙げられる。   As one structure of this invention, the said light attenuation member is a plate-shaped translucent member, and it is mentioned that it is attached to the said board | substrate so that the said LED may be covered.

本考案の一構成として、前記光減衰部材は、前記透光カバーの内面に塗装されていることが挙げられる。   As one structure of this invention, it is mentioned that the said light attenuation member is painted by the inner surface of the said translucent cover.

本考案の一構成として、前記光減衰部材は、前記透光カバーと一体成形されていることが挙げられる。   As one structure of this invention, it is mentioned that the said light attenuation member is integrally molded with the said translucent cover.

本考案の一構成として、前記光減衰部材は、可撓性を有するシート状をなし、前記透光カバーの内面に接着されていることが挙げられる。   As one configuration of the present invention, the light attenuating member has a flexible sheet shape and is adhered to the inner surface of the light transmitting cover.

上記ＬＥＤ照明装置の好適な適用例としては、上記ＬＥＤ照明装置であって、前記透光カバーは部分球状をなし、前記ＬＥＤは、電球ソケットにねじ込み可能な形状の電極部を介して電力の供給を受けるように構成されている、電球型のＬＥＤ照明装置が挙げられる。   As a preferred application example of the LED lighting device, the LED lighting device is configured such that the translucent cover has a partial spherical shape, and the LED supplies power via an electrode portion that can be screwed into a light bulb socket. And a bulb-type LED lighting device configured to receive the light.

上記ＬＥＤ照明装置の好適な適用例としては、上記ＬＥＤ照明装置であって、前記透光カバーが筒状をなし、前記ＬＥＤは前記透光カバーの内部を軸方向に沿って複数配列されている、直管型のＬＥＤ照明装置が挙げられる。   As a suitable application example of the LED illumination device, in the LED illumination device, the translucent cover has a cylindrical shape, and a plurality of the LEDs are arranged along the axial direction inside the translucent cover. And a straight tube type LED lighting device.

上記ＬＥＤ照明装置の好適な適用例としては、上記ＬＥＤ照明装置であって、前記筐体及び前記透光カバーが偏平形状をなす、シーリング型のＬＥＤ照明装置が挙げられる。   As a suitable application example of the LED illumination device, there is a ceiling-type LED illumination device which is the LED illumination device, in which the casing and the light transmitting cover have a flat shape.

人の眼で識別しにくい波長の光を重点的にカットして自然な色をゆがめることなく、青紫光線を適切に減衰させるためには、前記光減衰部材は、波長４９０ｎｍ近傍領域の光の減衰率をその周辺領域の光の減衰率よりも高く設定することが好ましい。   In order to appropriately attenuate blue-violet light without distorting the natural color by intensively cutting light with a wavelength that is difficult to identify with the human eye, the light attenuating member attenuates light in the wavelength vicinity of 490 nm. It is preferable to set the rate higher than the attenuation rate of light in the surrounding area.

本考案は、以上説明したように、光減衰部材によって青紫光線を有効に低減できると共に、光減衰部材がＬＥＤとは別体であるので、汎用ＬＥＤの採用を可能にしてコストを抑制することが可能となる。   As described above, the present invention can effectively reduce the blue-violet light by the light attenuating member, and the light attenuating member is separate from the LED. It becomes possible.

本考案の一実施形態に係るＬＥＤ照明装置を模式的に示す断面図。BRIEF DESCRIPTION OF THE DRAWINGS Sectional drawing which shows typically the LED lighting apparatus which concerns on one Embodiment of this invention. ＬＥＤ照明装置の分解図。The exploded view of a LED lighting device. 光減衰部材の透過率に関する説明図。Explanatory drawing regarding the transmittance | permeability of a light attenuation member. 本考案の他の実施形態に係るＬＥＤ照明装置を模式的に示す断面図。Sectional drawing which shows typically the LED lighting apparatus which concerns on other embodiment of this invention. 本考案の上記以外の実施形態に係るＬＥＤ照明装置を模式的に示す断面図。Sectional drawing which shows typically the LED lighting apparatus which concerns on embodiment other than the above of this invention.

以下、本考案の一実施形態を、図面を参照して説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

本実施形態のＬＥＤ照明装置は、いわゆる電球型のＬＥＤ照明装置である。図１は、照明装置の模式断面図である。図２は、照明装置の分解図である。図１及び図２に示すように、筐体１と、透光カバー２と、ＬＥＤ３ａ及びＬＥＤ３ａが実装された基板３と、光減衰部材４とを有する。電球型のＬＥＤ照明装置では、筐体は、ほぼ円錐状の筐体本体１ａと、筐体本体１ａの下端部に設けられる電極部１ｂとを有する。電極部１ｂは、電球ソケットにねじ込み可能な形状に形成されている。基板３は、円盤状をなし筐体にネジ等の締着具（図示せず）で固定されている。ＬＥＤ３ａは、基板３に格子状に複数実装され、ＬＥＤ発光を制御する電子部５及び電極部１ｂを介して外部から電力供給を受けて発光する。透光カバー２は、部分球状に形成された樹脂で、半透明且つ光を拡散する磨りガラスのような材質で成形されている。透光カバー２は、筐体１に取付けられて、筐体１及び透光カバー２によって形成される空間ＳＰ内にＬＥＤ３ａ及び基板３を収容する。   The LED lighting device of this embodiment is a so-called bulb-type LED lighting device. FIG. 1 is a schematic cross-sectional view of a lighting device. FIG. 2 is an exploded view of the lighting device. As shown in FIG.1 and FIG.2, it has the housing | casing 1, the translucent cover 2, the board | substrate 3 with which LED3a and LED3a were mounted, and the light attenuation member 4. As shown in FIG. In the bulb-type LED lighting device, the housing includes a substantially conical housing body 1a and an electrode portion 1b provided at the lower end of the housing body 1a. The electrode portion 1b is formed in a shape that can be screwed into the light bulb socket. The substrate 3 has a disk shape and is fixed to the housing with a fastening tool (not shown) such as a screw. A plurality of LEDs 3a are mounted on the substrate 3 in a lattice pattern, and emit light by receiving power supply from the outside via the electronic unit 5 and the electrode unit 1b that control LED emission. The translucent cover 2 is a resin formed in a partially spherical shape, and is formed of a material such as frosted glass that is translucent and diffuses light. The translucent cover 2 is attached to the housing 1 and accommodates the LEDs 3 a and the substrate 3 in a space SP formed by the housing 1 and the translucent cover 2.

光減衰部材４は、ＬＥＤ３ａとは別の板状の透光部材であり、波長３８０〜４９５ｎｍ（ナノメートル）の光を減衰し且つ他の波長の光を透過する素材で構成されている。具体的には、株式会社アイ・シー・ジャパン販売、イタリア共和国Intercast Europe s.r.l.社製造の製品名「ＰＳＳ１０００ ＨＣＤ」を用いている。勿論、波長３８０〜４９５ｎｍの光を減衰させる部材であればこれに限定されない。本実施形態の光減衰部材４は、複数のＬＥＤ３ａを覆うように基板にネジ等の締着具（図示せず）で取付けられている。すなわち、図１で想像線で示すように、ＬＥＤ３ａから透光カバー２を介して外部に放出される光の経路Ｌｉに光減衰部材４が配置される。   The light attenuating member 4 is a plate-like translucent member different from the LED 3a, and is made of a material that attenuates light with a wavelength of 380 to 495 nm (nanometers) and transmits light with other wavelengths. Specifically, the product name “PSS1000 HCD” manufactured by IC Japan Co., Ltd. and manufactured by Intercast Europe s.r.l., Italy, is used. Of course, it is not limited to this as long as it is a member that attenuates light having a wavelength of 380 to 495 nm. The light attenuating member 4 of the present embodiment is attached to the substrate with a fastener (not shown) such as a screw so as to cover the plurality of LEDs 3a. That is, as indicated by an imaginary line in FIG. 1, the light attenuating member 4 is disposed in the path Li of light emitted from the LED 3 a to the outside through the translucent cover 2.

図３は、ＬＥＤから発光される光と、光減衰部材４の透過率とを表す図である。図示される通り、波長３８０〜４９５ｎｍの光を有効に減衰できることがわかる。特に、光減衰部材４では、図３に示すように、人の眼が識別しにくい波長４９０ｎｍ近傍領域の光の減衰率をその周囲領域の光の減衰率よりも高く設定し、これにより波長４９０ｎｍ近傍領域を重点的に減衰するようにしている。さらに、人の眼が識別しにくい波長５８０ｎｍ近傍領域の光の減衰率をその周囲領域の光の減衰率よりも高く設定し、波長５８０ｎｍ近傍領域を重点的に減衰するようにしている。なお、青紫光線の減衰という意味では、波長４９０ｎｍ近傍領域の光を重点的に減衰できればよく、波長５８０ｎｍ近傍領域の減衰は任意に設定可能である。   FIG. 3 is a diagram illustrating the light emitted from the LED and the transmittance of the light attenuating member 4. As shown in the figure, it can be seen that light having a wavelength of 380 to 495 nm can be effectively attenuated. In particular, in the light attenuating member 4, as shown in FIG. 3, the light attenuation rate in the vicinity of the wavelength of 490 nm, which is difficult for human eyes to identify, is set higher than the attenuation rate of the light in the surrounding region, thereby the wavelength of 490 nm. The neighboring area is attenuated mainly. Furthermore, the attenuation rate of light in the vicinity of a wavelength of 580 nm, which is difficult for human eyes to identify, is set higher than the attenuation rate of light in the surrounding area so that the region near the wavelength of 580 nm is attenuated with priority. In addition, in the meaning of attenuation of blue-violet rays, it is only necessary to attenuate light in the region near the wavelength of 490 nm, and attenuation in the region near the wavelength of 580 nm can be arbitrarily set.

以上のように、本実施形態のＬＥＤ照明装置は、筐体１と、透光カバー２と、筐体１及び透光カバー２によって包囲される空間ＳＰ内に配置されるＬＥＤ３ａ及びＬＥＤ３ａが実装された基板３と、ＬＥＤ３ａから透光カバー２を介して外部に放出される光の経路Ｌｉに配置され且つＬＥＤ３ａとは別の部材であって、波長３８０〜４９５ｎｍ（ナノメートル）の光を減衰する光減衰部材４と、を備える。   As described above, the LED lighting device of the present embodiment is mounted with the housing 1, the translucent cover 2, and the LED 3 a and the LED 3 a disposed in the space SP surrounded by the housing 1 and the translucent cover 2. The substrate 3 and a light path Li emitted from the LED 3a to the outside through the translucent cover 2 are separate members from the LED 3a and attenuate light having a wavelength of 380 to 495 nm (nanometers). A light attenuating member 4.

この構成によれば、光減衰部材４によって青紫光線を有効に低減できることができる。それでいて、光減衰部材４は、ＬＥＤ３ａとは別体であるので、汎用ＬＥＤの採用を可能にしてコストを抑制することが可能となる。   According to this configuration, the blue-violet light can be effectively reduced by the light attenuating member 4. Nevertheless, since the light attenuating member 4 is separate from the LED 3a, a general-purpose LED can be used and the cost can be reduced.

特に、本実施形態では、光減衰部材４は、板状の透光部材であり、ＬＥＤ３ａを覆うように基板３に取付けられている。この構成によれば、既存の一般的なＬＥＤ照明装置を採用することができ、製造コストを更に抑制することが可能となる。   In particular, in the present embodiment, the light attenuating member 4 is a plate-like translucent member, and is attached to the substrate 3 so as to cover the LED 3a. According to this configuration, an existing general LED lighting device can be adopted, and the manufacturing cost can be further suppressed.

さらに、本実施形態では、透光カバー２は部分球状をなし、ＬＥＤ３ａは、電球ソケットにねじ込み可能な形状の電極部１ｂを介して電力の供給を受けるように構成されている。このように本考案のＬＥＤ照明装置は、電球型ＬＥＤに採用するのが好適である。   Further, in the present embodiment, the translucent cover 2 has a partial spherical shape, and the LED 3a is configured to be supplied with electric power via an electrode portion 1b having a shape that can be screwed into a light bulb socket. As described above, the LED lighting device of the present invention is preferably employed for a light bulb type LED.

さらに、本実施形態では、光減衰部材４は、波長４９０ｎｍ近傍領域の光の減衰率をその周辺領域の光の減衰率よりも高く設定しているので、人の眼で識別しにくい波長４９０ｎｍの光を重点的に減衰させ、自然な光をゆがめることなく、青紫光線を適切に減衰させることが可能となる。   Furthermore, in the present embodiment, the light attenuation member 4 sets the attenuation rate of light in the region near the wavelength of 490 nm to be higher than the attenuation rate of light in the peripheral region. It is possible to attenuate the blue-violet rays appropriately without damaging the light mainly and distorting the natural light.

以上、本考案の実施形態について図面に基づいて説明したが、具体的な構成は、これらの実施形態に限定されるものでないと考えられるべきである。本考案の範囲は、上記した実施形態の説明だけではなく請求の範囲によって示され、さらに請求の範囲と均等の意味および範囲内でのすべての変更が含まれる。   As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not only by the description of the above-described embodiment but also by the scope of claims, and further includes meanings equivalent to the scope of claims and all modifications within the scope.

例えば、本実施形態では、光減衰部材が、板状の透光部材であるが、例えば図４に示すように、透光カバー２の内面に光減衰部材１０４を形成してもよい。透光カバー２の内面に光減衰部材１０４を形成する方法としては、光減衰部材１０４を吹付け等により塗布する方法や、可撓性を有するシート状の光減衰部材１０４を接着することが挙げられる。   For example, in the present embodiment, the light attenuating member is a plate-like translucent member, but the light attenuating member 104 may be formed on the inner surface of the translucent cover 2, for example, as shown in FIG. Examples of a method for forming the light attenuating member 104 on the inner surface of the translucent cover 2 include a method of applying the light attenuating member 104 by spraying or the like, and bonding a sheet-like light attenuating member 104 having flexibility. It is done.

さらに、透光カバー２の材料に光減衰部材を練り込み、光減衰部材と透光カバー２とを一体成形してもよい。   Furthermore, a light attenuating member may be kneaded into the material of the translucent cover 2, and the light attenuating member and the translucent cover 2 may be integrally formed.

本実施形態のＬＥＤ照明装置は、電球型ＬＥＤ照明装置であるが、図５（ａ）に示すように、本考案は、筐体２０１及び透光カバー２０２が偏平形状をなすシーリング型のＬＥＤ照明装置にも適用可能である。この照明装置においても、ＬＥＤを覆う位置に光減衰部材２０４が取り付けてある。   The LED illumination device according to the present embodiment is a light bulb type LED illumination device. However, as shown in FIG. 5A, the present invention is a ceiling type LED illumination in which the casing 201 and the translucent cover 202 form a flat shape. It is also applicable to the device. Also in this illuminating device, the light attenuation member 204 is attached to the position which covers LED.

また、図５（ｂ）に示すように、本考案は、透光カバー３０２が筒状をなし、ＬＥＤ３ａは透光カバー３０２の内部を軸方向Ｃに沿って複数配列されている、直管型のＬＥＤ照明装置にも適用可能である。この照明装置においても、ＬＥＤを覆う位置に光減衰部材３０４が取り付けてある。   Further, as shown in FIG. 5B, in the present invention, the translucent cover 302 has a cylindrical shape, and a plurality of LEDs 3 a are arranged in the translucent cover 302 along the axial direction C. It is applicable also to this LED illuminating device. Also in this illuminating device, the light attenuation member 304 is attached to the position which covers LED.

なお、各部の具体的な構成は、上述した実施形態のみに限定されるものではなく、本考案の趣旨を逸脱しない範囲で種々変形が可能である。   The specific configuration of each unit is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

１…筐体
２…透光カバー
３ａ…ＬＥＤ
３…基板
４…光減衰部材 1 ... Case 2 ... Translucent cover 3a ... LED
3 ... Substrate 4 ... Light attenuation member

Claims (9)

筐体と、
透光カバーと、
前記筐体及び前記透光カバーによって包囲される空間内に配置されるＬＥＤ及びＬＥＤが実装された基板と、
前記ＬＥＤから前記透光カバーを介して外部に放出される光の経路に配置され且つ前記ＬＥＤとは別の部材であって波長３８０〜４９５ｎｍの光を減衰する光減衰部材とを、備えるＬＥＤ照明装置。 A housing,
A translucent cover;
LEDs disposed in a space surrounded by the casing and the light-transmitting cover, and a substrate on which the LEDs are mounted;
LED lighting comprising: a light attenuating member that is disposed in a path of light emitted from the LED to the outside through the translucent cover and is a member different from the LED and attenuates light having a wavelength of 380 to 495 nm apparatus. 前記光減衰部材は、板状の透光部材であり、前記ＬＥＤを覆うように前記基板に取付けられている請求項１に記載のＬＥＤ照明装置。   The LED lighting device according to claim 1, wherein the light attenuating member is a plate-like light transmitting member, and is attached to the substrate so as to cover the LED. 前記光減衰部材は、前記透光カバーの内面に塗装されている請求項１に記載のＬＥＤ照明装置。   The LED lighting device according to claim 1, wherein the light attenuating member is coated on an inner surface of the translucent cover. 前記光減衰部材は、前記透光カバーと一体成形されている請求項１に記載のＬＥＤ照明装置。   The LED lighting device according to claim 1, wherein the light attenuating member is integrally formed with the translucent cover. 前記光減衰部材は、可撓性を有するシート状をなし、前記透光カバーの内面に接着されている請求項１に記載のＬＥＤ照明装置。   The LED lighting device according to claim 1, wherein the light attenuating member has a flexible sheet shape and is bonded to an inner surface of the light transmitting cover. 請求項１〜５のいずれかに記載のＬＥＤ照明装置であって、前記透光カバーは部分球状をなし、前記ＬＥＤは、電球ソケットにねじ込み可能な形状の電極部を介して電力の供給を受けるように構成されている、電球型のＬＥＤ照明装置。   6. The LED lighting device according to claim 1, wherein the translucent cover has a partial spherical shape, and the LED is supplied with electric power through an electrode portion that can be screwed into a light bulb socket. A bulb-type LED lighting device configured as described above. 請求項１〜５のいずれかに記載のＬＥＤ照明装置であって、前記透光カバーが筒状をなし、前記ＬＥＤは前記透光カバーの内部を軸方向に沿って複数配列されている、直管型のＬＥＤ照明装置。   6. The LED lighting device according to claim 1, wherein the translucent cover has a cylindrical shape, and a plurality of the LEDs are arranged in the axial direction inside the translucent cover. Tube-type LED lighting device. 請求項１〜５のいずれかに記載のＬＥＤ照明装置であって、前記筐体及び前記透光カバーが偏平形状をなす、シーリング型のＬＥＤ照明装置。   6. The LED lighting device according to claim 1, wherein the casing and the translucent cover have a flat shape. 前記光減衰部材は、波長４９０ｎｍ近傍領域の光の減衰率をその周辺領域の光の減衰率よりも高く設定している請求項１〜８のいずれかに記載のＬＥＤ照明装置。   The LED lighting device according to any one of claims 1 to 8, wherein the light attenuating member sets a light attenuation rate in a region near a wavelength of 490 nm to be higher than a light attenuation rate in a peripheral region.
JP2013000279U 2013-01-22 2013-01-22 LED lighting device Expired - Fee Related JP3182629U (en)

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