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JP2012048881A - Lens and lighting fixture using the same - Google Patents

Lens and lighting fixture using the same Download PDF

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JP2012048881A
JP2012048881A JP2010187947A JP2010187947A JP2012048881A JP 2012048881 A JP2012048881 A JP 2012048881A JP 2010187947 A JP2010187947 A JP 2010187947A JP 2010187947 A JP2010187947 A JP 2010187947A JP 2012048881 A JP2012048881 A JP 2012048881A
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lens
light
curvature
lighting fixture
diameter portion
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JP5565952B2 (en
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Yoshiro Goto
芳朗 後藤
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Panasonic Electric Works Co Ltd
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Panasonic Electric Works Co Ltd
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Abstract

【課題】光源からの光の所定の方向へ配光を制御できるレンズおよびレンズを用いた照明器具を提供する。
【解決手段】照明器具10のレンズ13は、光源12の前方に配置され、内径の曲率が外径の曲率よりも大きい。
【選択図】図1
A lens capable of controlling light distribution in a predetermined direction of light from a light source and a lighting fixture using the lens are provided.
A lens 13 of a luminaire 10 is disposed in front of a light source 12 and has an inner diameter greater than an outer diameter.
[Selection] Figure 1

Description

本発明は、光源とするLEDチップの前方に配置されて配光を制御するレンズおよびレンズを用いた照明器具に関する。   The present invention relates to a lens that is disposed in front of an LED chip serving as a light source and controls light distribution, and a luminaire using the lens.

従来より、基板に複数のLEDチップが実装されたLEDユニットを備え、LEDチップの前方にサブレンズおよびメインレンズが配置されたレンズおよびレンズを用いた照明器具が知られている(例えば、特許文献1参照)。   2. Description of the Related Art Conventionally, a lighting device using a lens and a lens that includes an LED unit in which a plurality of LED chips are mounted on a substrate and in which a sub lens and a main lens are arranged in front of the LED chip is known (for example, Patent Documents). 1).

特開2009−99492号公報(図8、段落0027)JP 2009-99492 A (FIG. 8, paragraph 0027)

前述した特許文献1に記載されたレンズおよびレンズを用いた照明器具は、LEDチップからの光が、サブレンズにより道路長手方向に沿って拡がる扇形の集光光束に変換されて出射され、メインレンズによりサブレンズで集光された集光光束が照明領域に向けて出射される。これにより、LEDチップからの光の所定の方向への配光を制御できる。   The lens and the luminaire using the lens described in Patent Document 1 described above, the light from the LED chip is converted into a fan-shaped condensed light beam that spreads in the longitudinal direction of the road by the sub-lens and emitted, and the main lens Thus, the condensed light beam condensed by the sub lens is emitted toward the illumination area. Thereby, the light distribution in the predetermined direction of the light from the LED chip can be controlled.

ところで、図5に示すように、基板101に実装された光源であるLEDチップ102の前方にレンズ103を備えた照明器具100が提案されている。
このような従来の照明器具100は、拡げた配光に制御する場合、ドーム形のレンズ103に、しぼ加工を施したり、拡散材を混ぜて成形したりして適用している。
しかし、このような従来の照明器具100は、拡散した配光を制御する場合に、光の効率が低下する。
By the way, as shown in FIG. 5, the lighting fixture 100 provided with the lens 103 in front of the LED chip 102 which is the light source mounted in the board | substrate 101 is proposed.
Such a conventional lighting fixture 100 is applied by applying a squeezing process to the dome-shaped lens 103 or by mixing and forming a diffusing material when controlling to an expanded light distribution.
However, such a conventional luminaire 100 has low light efficiency when controlling the diffused light distribution.

また、図6に示すように、このような従来の照明器具100は、棚300に有する天板301の下面に設置された場合に、棚300の底板302および棚300の奥の壁303への配光を得るに際し、照明器具100を棚300の奥方向へ向けて傾けなければ、LEDチップ102からの光を棚300の奥方向へ向けることができず、所定の方向へ配光の制御が難しい。   Further, as shown in FIG. 6, when the conventional lighting device 100 is installed on the lower surface of the top plate 301 included in the shelf 300, the bottom plate 302 of the shelf 300 and the back wall 303 of the shelf 300 are connected. When obtaining the light distribution, if the lighting fixture 100 is not tilted toward the back of the shelf 300, the light from the LED chip 102 cannot be directed toward the back of the shelf 300, and the light distribution is controlled in a predetermined direction. difficult.

本発明は、前述した課題を解決するためになされたものであり、その目的は、光源からの光の所定の方向へ配光を制御できるレンズおよびレンズを用いた照明器具を提供することにある。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a lens that can control light distribution in a predetermined direction of light from a light source and a lighting fixture using the lens. .

本発明に係るレンズは、光源の前方に配置され、内径の曲率が外径の曲率よりも大きい。   The lens according to the present invention is disposed in front of the light source, and the curvature of the inner diameter is larger than the curvature of the outer diameter.

本発明に係るレンズは、周囲に、平面または外形よりも径の大きい光カット部を有する。   The lens according to the present invention has a light cut portion having a diameter larger than that of a flat surface or an outer periphery.

本発明に係るレンズは、一部において内径の曲率が外径の曲率よりも大きく、他において内径の曲率が外径の曲率よりも小さいまたは同等である。   In some lenses according to the present invention, the curvature of the inner diameter is larger than the curvature of the outer diameter, and in others, the curvature of the inner diameter is smaller than or equivalent to the curvature of the outer diameter.

本発明に係る照明器具は、レンズを用いた。   The lighting fixture according to the present invention uses a lens.

本発明に係るレンズおよびレンズを用いた照明器具によれば、光源からの光の所定の方向へ配光を制御できるという効果を奏する。   According to the lens and the lighting fixture using the lens according to the present invention, there is an effect that light distribution can be controlled in a predetermined direction of light from the light source.

本発明に係る第1実施形態のレンズおよびレンズを用いた照明器具における照明器具の垂直断面図1 is a vertical sectional view of a lighting fixture in a lighting fixture using a lens and a lens according to a first embodiment of the present invention. 図1の照明器具におけるLEDチップの光学的な特性図Optical characteristic diagram of LED chip in lighting apparatus of FIG. 図1の照明器具の要部拡大図Enlarged view of the main part of the lighting apparatus of FIG. 本発明に係る第2実施形態のレンズおよびレンズを用いた照明器具における照明器具の垂直断面図Vertical sectional view of a lighting fixture in a lighting fixture using a lens and a lens according to a second embodiment of the present invention 従来の照明器具の垂直断面図Vertical sectional view of a conventional lighting fixture 従来の照明器具の棚の下に設置した場合の配光の説明図Illustration of light distribution when installed under the shelf of a conventional lighting fixture

以下、本発明に係る複数の実施形態のレンズおよびレンズを用いた照明器具について図面を参照して説明する。
(第1実施形態)
図1に本発明に係る第1実施形態の照明器具10の垂直断面図を示す。
図1に示すように、照明器具10は、基板11に実装された光源であるLEDチップ12と、LEDチップ12の前方に配置されたレンズ13とを備える。
Hereinafter, a plurality of embodiments of the present invention and a lighting fixture using the lens will be described with reference to the drawings.
(First embodiment)
FIG. 1 shows a vertical sectional view of a lighting apparatus 10 according to a first embodiment of the present invention.
As shown in FIG. 1, the luminaire 10 includes an LED chip 12 that is a light source mounted on a substrate 11, and a lens 13 disposed in front of the LED chip 12.

レンズ13は、透光性を有するアクリル樹脂等を用いて成形されている。レンズ13は、LEDチップ12の光軸の前方に配置されたレンズ本体14と、レンズ本体14の側部に配置された天板15と、天板15の外縁部に接続された側板16とを有する。
レンズ本体14は、第1内径部17と第1外径部18とを有し、第1内径部17の曲率が第1外径部18の曲率よりも大きく設定されている。天板15は、レンズ本体14の周囲に配置されており、レンズ本体14の外径よりも径の大きい光カット部19を有する。光カット部19はLEDチップ12の発光面に対して水平に近い角度を有する。そのため、光カット部19は、光出力の低下を抑え、色むらを少なくできる。
なお、光カット部19には、しぼ加工を施したり、拡散材を混ぜて成形したりしてもよい。
The lens 13 is molded using a transparent acrylic resin or the like. The lens 13 includes a lens body 14 disposed in front of the optical axis of the LED chip 12, a top plate 15 disposed on a side portion of the lens body 14, and a side plate 16 connected to an outer edge portion of the top plate 15. Have.
The lens body 14 has a first inner diameter portion 17 and a first outer diameter portion 18, and the curvature of the first inner diameter portion 17 is set larger than the curvature of the first outer diameter portion 18. The top plate 15 is disposed around the lens body 14 and has a light cut portion 19 having a diameter larger than the outer diameter of the lens body 14. The light cut portion 19 has an angle close to the horizontal with respect to the light emitting surface of the LED chip 12. Therefore, the light cut unit 19 can suppress a decrease in light output and reduce color unevenness.
Note that the light cut portion 19 may be subjected to graining or may be molded by mixing a diffusing material.

図2に照明器具10におけるLEDチップ12の光学的な特性を示す。
図2に示すように、LEDチップ12が白系の発光LEDである場合、図2中の垂直方向であるレンズ本体14に向かう方向に青色Bが強調され、図2中の水平方向に近づくほど黄色Yが強調されてイエローリングを生ずる場合がある。
FIG. 2 shows optical characteristics of the LED chip 12 in the lighting fixture 10.
As shown in FIG. 2, when the LED chip 12 is a white light emitting LED, blue B is emphasized in the direction toward the lens body 14, which is the vertical direction in FIG. 2, and the yellow color approaches the horizontal direction in FIG. 2. Y may be emphasized to cause a yellow ring.

図3に照明器具10の要部拡大図を示し、照明器具10の光学的な特性について説明する。
なお、図3においては図6の符号を参照して説明する。
The principal part enlarged view of the lighting fixture 10 is shown in FIG. 3, and the optical characteristic of the lighting fixture 10 is demonstrated.
3 will be described with reference to the reference numerals in FIG.

図3に示すように、照明器具10は、棚300に有する天板301の下面に設置される。基板11に有する不図示のプリント回路が同じく不図示の電源装置に電気的に接続される。電源回路からの給電によりLEDチップ12が発光される。
LEDチップ12からの光のうち、レンズ本体14の中央部に向けて出射された光成分L1は、レンズ本体14の第1内径部17において屈折してからレンズ本体14内を導光された後に第1外径部18において屈折して照明器具10の真下の底板302に対して斜めの方向に出射される。
As shown in FIG. 3, the lighting fixture 10 is installed on the lower surface of the top plate 301 included in the shelf 300. A printed circuit (not shown) provided on the substrate 11 is electrically connected to a power supply device (not shown). The LED chip 12 emits light by power feeding from the power supply circuit.
Of the light from the LED chip 12, the light component L1 emitted toward the center of the lens body 14 is refracted at the first inner diameter portion 17 of the lens body 14 and then guided through the lens body 14. The light is refracted at the first outer diameter portion 18 and emitted in an oblique direction with respect to the bottom plate 302 directly below the lighting fixture 10.

LEDチップ12からの光のうち、レンズ本体14の側部に向けて出射された光成分L2は、レンズ本体14の第1内径部17において屈折してからレンズ本体14内を導光された後に第1外径部18において屈折して棚300の奥の壁303の方向に出射される。
従って、照明器具10は、LEDチップ12からの光がLEDチップ12の発光形状よりも拡がって壁303に向かう配光を制御できる。
Of the light from the LED chip 12, the light component L <b> 2 emitted toward the side of the lens body 14 is refracted at the first inner diameter portion 17 of the lens body 14 and then guided through the lens body 14. The light is refracted at the first outer diameter portion 18 and emitted toward the inner wall 303 of the shelf 300.
Therefore, the lighting fixture 10 can control the light distribution that the light from the LED chip 12 spreads more than the light emission shape of the LED chip 12 and travels toward the wall 303.

このとき、図1を参照して、LEDチップ12からの光のうち、レンズ本体14の端部に向けて出射された光成分L3、すなわち、イエローリングを生成する成分を含む光成分L3は、レンズ本体14の周囲の天板15に有する光カット部19により制御される。
従って、照明器具10は、LEDチップ12からの光のうち、基板11の水平方向に近い方向に生ずるイエローリングが光カット部19により臨界角で反射されることにより、イエローリングが目立たない。
このように、LEDチップ12からの光は、第1内径部17の曲率が第1外径部18の曲率よりも大きく設定されたレンズ本体14のプリズム効果により、色のシフトが逆の屈折になるために、発光している色の変化を低減できる。
At this time, referring to FIG. 1, among the light from the LED chip 12, the light component L3 emitted toward the end of the lens body 14, that is, the light component L3 including a component that generates a yellow ring, It is controlled by a light cut unit 19 provided on the top plate 15 around the lens body 14.
Therefore, in the lighting fixture 10, the yellow ring generated in the direction close to the horizontal direction of the substrate 11 out of the light from the LED chip 12 is reflected at the critical angle by the light cut portion 19, so that the yellow ring is not conspicuous.
As described above, the light from the LED chip 12 is refracted in the reverse color shift due to the prism effect of the lens body 14 in which the curvature of the first inner diameter portion 17 is set larger than the curvature of the first outer diameter portion 18. Therefore, it is possible to reduce the change in the emitted color.

以上、説明した第1実施形態のレンズ13によれば、LEDチップ12の前方に配置され、第1内径部17の曲率が第2外径部18の曲率よりも大きいため、LEDチップ12からの光がLEDチップ12の発光形状よりも拡がる配光を制御できる。   As described above, according to the lens 13 of the first embodiment described above, since the curvature of the first inner diameter portion 17 is larger than the curvature of the second outer diameter portion 18, it is arranged in front of the LED chip 12. It is possible to control the light distribution in which the light spreads beyond the light emission shape of the LED chip 12.

また、レンズ13によれば、レンズ本体14の周囲に、レンズ本体14の外径よりも径の大きい光カット部19を有するため、LEDチップ12からの光のうち、基板11の水平方向に近い方向に生ずるイエローリングが光カット部19により臨界角で反射され、これによりイエローリングが目立たない。   Further, according to the lens 13, since the light cut portion 19 having a diameter larger than the outer diameter of the lens body 14 is provided around the lens body 14, the light from the LED chip 12 is close to the horizontal direction of the substrate 11. The yellow ring generated in the direction is reflected at the critical angle by the light cut portion 19, and the yellow ring is not conspicuous.

そして、照明器具10によれば、レンズ13を用いたため、LEDチップ12からの光がLEDチップ12の発光形状よりも拡がる配光を制御できる。   And according to the lighting fixture 10, since the lens 13 was used, the light distribution from which the light from LED chip 12 spreads rather than the light emission shape of LED chip 12 is controllable.

(第2実施形態)
次に、本発明に係る第2実施形態のレンズおよびレンズを用いた照明器具について説明する。
なお、以下の第2実施形態において、上述した第1実施形態と重複する構成要素や機能的に同様な構成要素については、図中に同一符号あるいは相当符号を付することによって説明を簡略化あるいは省略する。
(Second embodiment)
Next, the lens of 2nd Embodiment which concerns on this invention, and the lighting fixture using a lens are demonstrated.
Note that, in the following second embodiment, the same or equivalent components in the drawing are simplified or described for the same components or functionally similar components as those in the first embodiment described above. Omitted.

図4に本発明に係る第2実施形態の照明器具30の垂直断面図を示す。
図4に示すように、照明器具30は、器具本体31に有するレンズ取付部32に、基板11に実装されたLEDチップ12を有していてLEDチップ12の前方に配置されたレンズ33が取り付けられている。レンズ取付部32は、照明器具30が、棚(図6参照)300の奥の壁303に向くように傾斜されている。
FIG. 4 shows a vertical cross-sectional view of the lighting fixture 30 according to the second embodiment of the present invention.
As shown in FIG. 4, the lighting fixture 30 has the LED chip 12 mounted on the substrate 11 and the lens 33 disposed in front of the LED chip 12 attached to the lens mounting portion 32 of the fixture body 31. It has been. The lens mounting portion 32 is inclined so that the lighting fixture 30 faces the wall 303 at the back of the shelf (see FIG. 6) 300.

レンズ33は、レンズ本体34に、第1内径部35および第1外径部36からなる第1レンズ部37と、第2内径部38および第2外径部39からなる第2レンズ部40と、第3内径部41および第3外径部42からなる第3レンズ部43とを有する。
第1レンズ部37は、棚300の壁303側に配置される。第1レンズ部37は、第1内径部35の曲率が第1外径部36の曲率よりも大きく設定されている。
The lens 33 includes a lens body 34, a first lens portion 37 including a first inner diameter portion 35 and a first outer diameter portion 36, and a second lens portion 40 including a second inner diameter portion 38 and a second outer diameter portion 39. A third lens portion 43 including a third inner diameter portion 41 and a third outer diameter portion 42.
The first lens unit 37 is disposed on the wall 303 side of the shelf 300. In the first lens portion 37, the curvature of the first inner diameter portion 35 is set larger than the curvature of the first outer diameter portion 36.

第2レンズ部40は、棚300の壁303とは反対側に配置される。第2レンズ部40は、第2内径部38の曲率が第2外径部39の曲率よりも小さく設定されている。
第3レンズ部43は、第1レンズ部37と第2レンズ部40との間に配置される。第3レンズ部43は、第3内径部41の曲率が、第1内径部35の曲率から第2内径部38の曲率に徐々に近づくように設定されており、第3外径部42の曲率が、第1外径部36の曲率から第2外径部39の曲率に徐々に近づくように設定されている。
The second lens unit 40 is disposed on the opposite side of the shelf 300 from the wall 303. In the second lens portion 40, the curvature of the second inner diameter portion 38 is set smaller than the curvature of the second outer diameter portion 39.
The third lens unit 43 is disposed between the first lens unit 37 and the second lens unit 40. The third lens portion 43 is set so that the curvature of the third inner diameter portion 41 gradually approaches the curvature of the second inner diameter portion 38 from the curvature of the first inner diameter portion 35, and the curvature of the third outer diameter portion 42. Is set so as to gradually approach the curvature of the second outer diameter portion 39 from the curvature of the first outer diameter portion 36.

照明器具30は、給電によりLEDチップ12が発光される。LEDチップ12からの光のうちレンズ本体34の第1レンズ部37に向けて出射された光成分L4は、第1レンズ部37の第1内径部35において屈折してから第1レンズ部37内を導光された後に第1外径部36において屈折して棚300の奥の壁303の方向に出射される。
LEDチップ12からの光のうちレンズ本体34の第2レンズ部40に向けて出射された光成分L5は、第2レンズ部40の第2内径部38において屈折してから第2レンズ部40内を導光された後に第2外径部39において屈折して棚300の底板302の方向に出射される。
LEDチップ12からの光のうちレンズ本体34の第3レンズ部43に向けて出射された光成分L6は、第3レンズ43の第3内径部41において屈折してから第3レンズ部43内を導光された後に第3外径部42において屈折して棚300の奥の壁303および棚300の底板302の方向に出射される。
As for the lighting fixture 30, LED chip 12 is light-emitted by electric power feeding. Of the light from the LED chip 12, the light component L 4 emitted toward the first lens portion 37 of the lens body 34 is refracted at the first inner diameter portion 35 of the first lens portion 37 and then inside the first lens portion 37. After being guided, the light is refracted at the first outer diameter portion 36 and emitted toward the rear wall 303 of the shelf 300.
The light component L5 emitted from the LED chip 12 toward the second lens portion 40 of the lens body 34 is refracted at the second inner diameter portion 38 of the second lens portion 40, and then the light component L5 is refracted in the second lens portion 40. After being guided, the light is refracted at the second outer diameter portion 39 and emitted toward the bottom plate 302 of the shelf 300.
The light component L6 emitted from the LED chip 12 toward the third lens portion 43 of the lens body 34 is refracted at the third inner diameter portion 41 of the third lens 43 and then passes through the third lens portion 43. After being guided, the light is refracted at the third outer diameter portion 42 and emitted toward the inner wall 303 of the shelf 300 and the bottom plate 302 of the shelf 300.

第2実施形態のレンズ33は、第1レンズ部37において第1内径部35の曲率が第1外径部36の曲率よりも大きく設定され、第2レンズ部40において第2内径部38の曲率が第2外径部39の曲率よりも小さく設定され、第3レンズ部43において第3内径部41の曲率が第1内径部35の曲率から第2内径部38の曲率に徐々に近づくように設定され、第3外径部42の曲率が第1外径部36の曲率から第2外径部39の曲率に徐々に近づくように設定されている。
従って、第2実施形態のレンズ33によれば、LEDチップ12からの光を、大きく拡がる配光に制御できるとともに大きく拡がらない配光に制御できる。
In the lens 33 of the second embodiment, the curvature of the first inner diameter portion 35 in the first lens portion 37 is set larger than the curvature of the first outer diameter portion 36, and the curvature of the second inner diameter portion 38 in the second lens portion 40. Is set to be smaller than the curvature of the second outer diameter portion 39 so that the curvature of the third inner diameter portion 41 gradually approaches the curvature of the second inner diameter portion 38 from the curvature of the first inner diameter portion 35 in the third lens portion 43. The curvature of the third outer diameter portion 42 is set so as to gradually approach the curvature of the second outer diameter portion 39 from the curvature of the first outer diameter portion 36.
Therefore, according to the lens 33 of the second embodiment, it is possible to control the light from the LED chip 12 to a light distribution that greatly spreads and to a light distribution that does not spread greatly.

なお、本発明のレンズおよびレンズを用いた照明器具において基板,LEDチップ等は、前述した実施形態に限定されるものでなく、適宜な変形や改良等が可能である。   In addition, a board | substrate, LED chip, etc. in the lighting fixture using the lens and lens of this invention are not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

10,30 照明器具
12 LEDチップ(光源)
13,33 レンズ
17,35 第1内径部(内径)
18,36 第1外径部(外径)
19 光カット部
38 第2内径部(内径)
39 第2外径部(外径)
41 第3内径部(内径)
42 第3外径部(外径)
10, 30 Lighting equipment 12 LED chip (light source)
13, 33 Lens 17, 35 First inner diameter portion (inner diameter)
18, 36 First outer diameter part (outer diameter)
19 Light cut part 38 2nd inside diameter part (inside diameter)
39 Second outer diameter (outer diameter)
41 3rd inner diameter part (inner diameter)
42 Third outer diameter (outer diameter)

Claims (4)

光源の前方に配置され、内径の曲率が外径の曲率よりも大きいレンズ。   A lens that is placed in front of the light source and has a larger inside diameter curvature than the outside diameter curvature. 請求項1に記載のレンズにおいて、
周囲に、平面または外形よりも径の大きい光カット部を有するレンズ。
The lens of claim 1, wherein
A lens having a light cut portion with a diameter larger than that of a flat surface or an outer periphery.
請求項1または請求項2に記載のレンズにおいて、
一部において前記内径の曲率が前記外径の曲率よりも大きく、他において前記内径の曲率が前記外径の曲率よりも小さいまたは同等であるレンズ。
The lens according to claim 1 or 2,
In some cases, the curvature of the inner diameter is greater than the curvature of the outer diameter, and in others, the curvature of the inner diameter is less than or equal to the curvature of the outer diameter.
請求項1ないし請求項3のうちのいずれか1項に記載のレンズを用いた照明器具。   The lighting fixture using the lens of any one of Claim 1 thru | or 3.
JP2010187947A 2010-08-25 2010-08-25 lighting equipment Expired - Fee Related JP5565952B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015165475A (en) * 2014-03-03 2015-09-17 パナソニックIpマネジメント株式会社 range hood
JP2020060692A (en) * 2018-10-10 2020-04-16 パナソニックIpマネジメント株式会社 Lens, lighting device and lighting equipment
EP3564579A4 (en) * 2017-05-27 2020-07-01 Suzhou Opple Lighting Co., Ltd. LIGHT DISTRIBUTION ELEMENT, LIGHT SOURCE MODULE AND LIGHTING DEVICE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009043628A (en) * 2007-08-09 2009-02-26 Sharp Corp LIGHT EMITTING DEVICE AND LIGHTING DEVICE EQUIPPED WITH THE SAME
JP2011138982A (en) * 2009-12-29 2011-07-14 Omron Corp Illumination device and producing method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009043628A (en) * 2007-08-09 2009-02-26 Sharp Corp LIGHT EMITTING DEVICE AND LIGHTING DEVICE EQUIPPED WITH THE SAME
JP2011138982A (en) * 2009-12-29 2011-07-14 Omron Corp Illumination device and producing method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015165475A (en) * 2014-03-03 2015-09-17 パナソニックIpマネジメント株式会社 range hood
EP3564579A4 (en) * 2017-05-27 2020-07-01 Suzhou Opple Lighting Co., Ltd. LIGHT DISTRIBUTION ELEMENT, LIGHT SOURCE MODULE AND LIGHTING DEVICE
JP2020060692A (en) * 2018-10-10 2020-04-16 パナソニックIpマネジメント株式会社 Lens, lighting device and lighting equipment
JP7126126B2 (en) 2018-10-10 2022-08-26 パナソニックIpマネジメント株式会社 Lenses, lighting devices and lighting fixtures

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