【発明の詳細な説明】〔産業上の利用分野〕本発明は、多色点灯機能をもったＬＥＤ光源の改良に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of an LED light source having a multicolor lighting function.
従来、多色点灯機能をもったＬＥＤ光源としては第３図
及び第４図に示すような構造のものが多い。これは、例
えば、赤色ＬＥＤ素子３１を樹脂モールドするとともに
レンズ３２を形成してなる赤色ＬＥＤランプ３３と、黄
緑色ＬＥＤ素子３４を同じく樹脂モールドしてレンズ３
５を形成してなる黄緑色ＬＥＤランプ３６とを平面上に
適数個宛配置した構造のものである。Conventionally, many LED light sources with a multicolor lighting function have structures as shown in FIGS. 3 and 4. For example, a red LED lamp 33 is formed by molding a red LED element 31 with resin and forming a lens 32, and a lens 32 is formed by molding a yellow-green LED element 34 in the same resin.
It has a structure in which an appropriate number of yellow-green LED lamps 36 formed by 5 are arranged on a plane.
しかし、前記のような構造では、−色のＬＥＤランプを
点灯させる場合は他の色のＬ Ｅ Ｄランプを消灯して
おくため、単色のＬＥＤランプのみを同数だけ配列した
光源に比べて全体としてのランプ光度が劣るという欠点
がある。また、−色点灯の際、消灯されているＬＥＤラ
ンプの存在によって見栄えがよくないという欠点があっ
た。However, with the above structure, when turning on the LED lamp of the negative color, the LED lamps of other colors are turned off, so the overall efficiency is lower than that of a light source in which the same number of single-color LED lamps are arranged. The disadvantage is that the luminous intensity of the lamp is inferior. In addition, when the - color is turned on, there is a drawback that the appearance is not good due to the presence of the LED lamps that are turned off.
本発明は前記のような問題点に鑑みてなされたもので、
高光度１高輝度を得ることができ、点灯時の見栄えもよ
い、多色点灯機能を持ったＬＥＤ光源を提供せんとする
ものである。The present invention was made in view of the above-mentioned problems.
It is an object of the present invention to provide an LED light source that can obtain high luminous intensity, has a good appearance when lit, and has a multicolor lighting function.
上記目的達成のため、底面に任意の色を発する複数個の
ＬＥＤ素子を、側面に前記底面とは異る色を発する複数
個のＬＥＤ素子をそれぞれ配列するとともに、前記両Ｌ
Ｅ Ｄ素子の間に、底面のＬＥＤ素子からの光を上方
に透過し、側面のＬＥＤ素子からの光を上方に反射する
波長選択被膜を備えた光線制御板を設置した構造を採用
したものである。In order to achieve the above objective, a plurality of LED elements emitting an arbitrary color are arranged on the bottom surface, a plurality of LED elements emitting a color different from the bottom surface are arranged on the side surface, and both of the L
A structure is adopted in which a light beam control plate with a wavelength selective coating is installed between the ED elements, which transmits the light from the LED elements on the bottom upward and reflects the light from the LED elements on the side upwards. be.
また、底面または側面に配置する複数個のＬＥＤ素子と
しては、従来のようにＬＥＤ素子を樹脂モールドすると
ともにレンズを形成してなるＬＦ。In addition, as for the plurality of LED elements disposed on the bottom or side surfaces, an LF is formed by molding the LED elements with resin and forming a lens as in the conventional case.
Ｄランプを使用してもよいが、これらに代えて、透光性
基板の裏面に印刷回路を形成し、その印刷回路に複数個
の発光チップとワイヤボンディングを施して電気的接続
をしたうえ、各発光チップに対応させて凹面反射鏡を設
置して構成されたものを使用することもできる。Although D lamps may be used, instead of these, a printed circuit is formed on the back side of a transparent substrate, and the printed circuit is electrically connected to a plurality of light emitting chips by wire bonding. It is also possible to use a structure in which a concave reflecting mirror is installed corresponding to each light emitting chip.
〔実施例１〕第１図に本発明の一実施例を示す。[Example 1]FIG. 1 shows an embodiment of the present invention.
同図において、１は任意の色を発するＬＥＤ素子例えば
赤色ＬＥＤ素子２を樹脂モールドしてレンズ３を形成し
てなる赤色ＬＥＤランプである。In the figure, reference numeral 1 denotes a red LED lamp in which a lens 3 is formed by resin-molding an LED element emitting an arbitrary color, such as a red LED element 2.
４は前記ＬＥＤ素子とは異る色を発するＬＥＤ素子例え
ば黄緑色ＬＥＤ素子５を樹脂モールドしてレンズ６を形
成してなる黄緑色ＬＥＤランプである。上記赤色ＬＥＤ
ランプ１と黄緑色ＬＥＤランプ４とはそれぞれ樹脂ケー
ス７の底面に配置された回路基板８と側面に配置された
回路基板９とに複数個宛配置固定されている。１０は底
面の赤色ＬＥＤランプ１からの光を上方に透過するとと
もに、側面の黄緑色ＬＥＤランプ４からの光を上方に反
射する波長選択被膜を備えた光線制御板である。この光
線制御板１０は底面と側面の接合点から上方に向って傾
斜させてあり、必要に応じて傾斜角度を変えられるよう
にしてもよい。光線制御板１０の表面に形成された波長
選択被膜は、一般に特定の金属又は金属酸化物をガラス
表面に多層に蒸着してなる、いわゆるダイクロイックミ
ラーと称されるものである。１１は樹脂ケース７の上面
に設置した透明ガラスである。かかる構造において、底
面の赤色ＬＥＤランプ１を点灯すると、その光は光線制
御板１０を透過して前方に放射され、側面の黄緑色ＬＥ
Ｄランプ４を点灯すると、その光は光線制御板１０で反
射されて前方に放射される。また、両ＬＥＤランプ１，
４を同時に点灯すると、混合色が前方に放射されること
になる。Reference numeral 4 designates a yellow-green LED lamp in which a lens 6 is formed by resin-molding an LED element emitting a different color from the LED element, such as a yellow-green LED element 5. Above red LED
A plurality of lamps 1 and yellow-green LED lamps 4 are arranged and fixed in plural numbers on a circuit board 8 disposed on the bottom surface of the resin case 7 and a circuit board 9 disposed on the side surface, respectively. Reference numeral 10 denotes a light beam control plate provided with a wavelength selective coating that transmits light from the red LED lamp 1 on the bottom surface upward and reflects light from the yellow-green LED lamp 4 on the side surface upward. The light beam control plate 10 is inclined upward from the junction between the bottom surface and the side surface, and the angle of inclination may be changed as necessary. The wavelength selective coating formed on the surface of the light beam control plate 10 is generally a so-called dichroic mirror formed by depositing a specific metal or metal oxide in multiple layers on the glass surface. 11 is a transparent glass installed on the upper surface of the resin case 7. In such a structure, when the red LED lamp 1 on the bottom is turned on, the light passes through the light beam control board 10 and is emitted forward, and the yellow-green LED lamp on the side
When the D lamp 4 is turned on, the light is reflected by the light beam control plate 10 and radiated forward. In addition, both LED lamps 1,
When 4 are lit at the same time, a mixed color will be emitted forward.
〔実施例２〕第２図に本発明の他の実施例を示す。これは、第１図に
示したようなＬＥＤランプ１．４を使用せずに、次のよ
うなＬＥＤランプを使用するものである。すなわち、複
数個の発光素子１３ａ。[Embodiment 2] FIG. 2 shows another embodiment of the present invention. This does not use the LED lamp 1.4 shown in FIG. 1, but instead uses the following LED lamp. That is, a plurality of light emitting elements 13a.
１３ ｂ −１３ｎと、該発光素子１３ａ〜１３ｎに電
源を供給するリード部（図示せず）と、前記各発光素子
１３ａ〜１３ｎの発光面側に設けられ前記発光素子１３
ａ〜１３ｎが発する光を反射する凹面状反射面１４と、
前記発光素子１３ａ〜１３ｎと前記凹面状反射面１４と
の空間を埋める光透過材料１５とを具備し、前記発光素
子１３ａ〜１３ｎが発する光を一度前記凹面状反射面１
４で反射させた後に外部に放射するように構成したもの
である。側面には同様の構造の発光色の異るＬＥＤラン
プが設置しである。かかるＬＥＤランプを使用する利点
は光軸方向の光度及び輝度が非常に高いことと、ＬＥＤ
ランプを薄型にできることである。13b-13n, a lead part (not shown) for supplying power to the light emitting elements 13a to 13n, and a lead part (not shown) that is provided on the light emitting surface side of each of the light emitting elements 13a to 13n, and the light emitting element 13
a concave reflective surface 14 that reflects the light emitted by a to 13n;
A light transmitting material 15 that fills the space between the light emitting elements 13a to 13n and the concave reflective surface 14 is provided, and the light emitted by the light emitting elements 13a to 13n is transmitted once to the concave reflective surface 1.
4 and then radiates it to the outside. On the side, there are LED lamps with a similar structure but different emission colors. The advantage of using such an LED lamp is that the luminous intensity and brightness in the optical axis direction are very high, and that the LED lamp
This allows the lamp to be made thinner.
点灯時の動作は第１図の場合と変らない。The operation when the lamp is lit is the same as in the case shown in Fig. 1.
以上の説明から明らかなように、本発明は、底面及びそ
の側面に発光色の異るＬＦ、Ｄランプを複数個宛配置し
、その中央に前記各ＬＥＤランプからの光を透過又は反
射させるように構成したので、−色点灯の場合でも同一
面上に二色のＬＥＤランプを配置した場合のように一色
を消灯する必要は全くなく、高光度、高輝度が得られる
うえ、−色消灯の場合でも見栄えが悪くなるということ
はない。なお、二色のＬＥＤランプを同時点灯した場合
には、更に光度、輝度が高く、デイスプレィ等に効果的
な混色光が得られるというメリットもある。As is clear from the above description, the present invention has a structure in which a plurality of LF and D lamps with different emission colors are arranged on the bottom surface and the side surfaces thereof, and the light from each of the LED lamps is transmitted or reflected at the center. Since it is configured as follows, there is no need to turn off one color even when two-color LED lamps are placed on the same surface, and high luminous intensity and brightness can be obtained. It doesn't look bad even if it is. Incidentally, when two-color LED lamps are turned on at the same time, there is an advantage that the luminous intensity and brightness are even higher, and mixed-color light that is effective for displays and the like can be obtained.
第１図は本発明に係る多色ＬＥＤ光源の断面図、第２図
は本発明の他の実施例の断面図、第３図及び第４図は従
来の多色ＬＥＤ光源の断面図と平面図である。第１図において、１・・・赤色ＬＥＤランプ、４・・・
黄緑色Ｌ Ｅ Ｄランプ、１０・・・光線制御板。第１図第２図刀・３図才ｔ′に図FIG. 1 is a sectional view of a multicolor LED light source according to the present invention, FIG. 2 is a sectional view of another embodiment of the invention, and FIGS. 3 and 4 are a sectional view and a plan view of a conventional multicolor LED light source. It is a diagram. In FIG. 1, 1... red LED lamp, 4...
Yellow-green LED lamp, 10... light beam control board. Figure 1 Figure 2 Sword / Figure 3 Sait' and Figure
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62300044AJPH01143367A (en) | 1987-11-30 | 1987-11-30 | Multicolor LED light source |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62300044AJPH01143367A (en) | 1987-11-30 | 1987-11-30 | Multicolor LED light source |
| Publication Number | Publication Date |
|---|---|
| JPH01143367Atrue JPH01143367A (en) | 1989-06-05 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62300044APendingJPH01143367A (en) | 1987-11-30 | 1987-11-30 | Multicolor LED light source |
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| JP (1) | JPH01143367A (en) |
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| JP2011523191A (en)* | 2008-06-10 | 2011-08-04 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Optical output device and method |
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