JPH0251844A - Fluorescent lamp - Google Patents
Fluorescent lampInfo
- Publication number
- JPH0251844A JPH0251844A JP20239188A JP20239188A JPH0251844A JP H0251844 A JPH0251844 A JP H0251844A JP 20239188 A JP20239188 A JP 20239188A JP 20239188 A JP20239188 A JP 20239188A JP H0251844 A JPH0251844 A JP H0251844A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- fluorescent lamp
- chromaticity
- color
- luminescent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 38
- 239000002245 particle Substances 0.000 claims description 11
- JUNWLZAGQLJVLR-UHFFFAOYSA-J calcium diphosphate Chemical compound [Ca+2].[Ca+2].[O-]P([O-])(=O)OP([O-])([O-])=O JUNWLZAGQLJVLR-UHFFFAOYSA-J 0.000 claims description 5
- 229940043256 calcium pyrophosphate Drugs 0.000 claims description 5
- 235000019821 dicalcium diphosphate Nutrition 0.000 claims description 5
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 235000013305 food Nutrition 0.000 abstract description 12
- 235000013372 meat Nutrition 0.000 abstract description 11
- 235000013311 vegetables Nutrition 0.000 abstract description 5
- 241000251468 Actinopterygii Species 0.000 abstract description 4
- 235000019688 fish Nutrition 0.000 abstract description 4
- 239000003086 colorant Substances 0.000 description 6
- 238000009877 rendering Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- MCSXGCZMEPXKIW-UHFFFAOYSA-N 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide Chemical compound Cc1ccc(N=Nc2c(O)c(cc3ccccc23)C(=O)Nc2cccc(c2)[N+]([O-])=O)c(c1)[N+]([O-])=O MCSXGCZMEPXKIW-UHFFFAOYSA-N 0.000 description 3
- 229910052693 Europium Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 235000014102 seafood Nutrition 0.000 description 3
- -1 terbium-activated lanthanum phosphate phosphor Chemical class 0.000 description 3
- 241000238366 Cephalopoda Species 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- DXNVUKXMTZHOTP-UHFFFAOYSA-N dialuminum;dimagnesium;barium(2+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Mg+2].[Mg+2].[Al+3].[Al+3].[Ba+2].[Ba+2] DXNVUKXMTZHOTP-UHFFFAOYSA-N 0.000 description 2
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000015170 shellfish Nutrition 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、蛍光ランプに関し、特に食肉魚介などの展示
商品照明用の狭帯域発光形蛍光ランプに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a fluorescent lamp, and particularly to a narrow-band fluorescent lamp for illuminating displayed products such as meat, seafood, and the like.
肉類や魚介類、野菜類の食品の展示照明に使用される蛍
光ランプには、食品がいかに自然にかつ鮮やかに見える
ことが要求され、この要求から演色性区分がＡＡＬ形で
ある純天然白色蛍光ランプや、４５０ｎａ＋、 ５４
０ｎｍ、 ８１０ｎｒｇ（４近に発光ピークををする
色温度が５（１００Ｋで演色性区分がＡ形である三波長
域発光形蛍光ランプが実用化されている。Fluorescent lamps used for exhibition lighting of meat, seafood, and vegetable foods are required to make the food appear as natural and vivid as possible. Lamp, 450na+, 54
A three-wavelength fluorescent lamp with a color temperature of 5 (100 K) and a color rendering class A that has an emission peak around 0 nm and 810 nrg (4) has been put into practical use.
上記純天然白色蛍光ランプは平均演色評価数Ｒａが９２
と良好で、食肉などの食品の色を自然に見せるが、鮮や
かに見せることに今−歩欠け一方、三液長域発光形蛍光
ランプは展示物を鮮やかにみせる効果にすぐれているが
、深赤色の発光が不足しており、食肉やトマトなどの赤
味の多い食品の展示照明には適切でない。The above pure natural white fluorescent lamp has an average color rendering index Ra of 92.
The three-component long-range fluorescent lamps are excellent at making exhibits look vivid, but they lack the ability to make the colors of foods such as meat look natural, but they lack depth. It lacks red light, making it unsuitable for display lighting for foods with a high red tinge, such as meat and tomatoes.
そこで、本出願人は先に、上記三液長域発光形蛍光ラン
プの特に深赤色に対する演色性を改善した蛍光ランプを
開発し、実用化した。この蛍光ランプは４５０． ５４
０．６１０ｎｍ付近に発光ピークををする三液長域発光
形蛍光体と、４Ｂ０ｎ■付近に発光ピークを有する青緑
色蛍光体と、６６０ｎｍ付近に発光ピークを有する深赤
色蛍光体の組合せから成る蛍光体膜をガラス管内面に形
成したもので、発光色の色温度は５０００ Ｋである。Therefore, the present applicant has previously developed and put into practical use a fluorescent lamp with improved color rendering properties, particularly for deep red, of the three-component long-range fluorescent lamp. This fluorescent lamp costs 450. 54
Fluorescence consisting of a combination of a three-component long-range emitting phosphor with an emission peak around 0.610 nm, a blue-green phosphor with an emission peak around 4B0n, and a deep red phosphor with an emission peak around 660 nm. A body membrane is formed on the inner surface of a glass tube, and the color temperature of the emitted light is 5000K.
具体的に説明すると、上記の三液長域発光形蛍光体はユ
ーロピウム付活アルミン酸バリウムマグネシウム蛍光体
（青色）とセリウム、テルビウム付活リン酸ランタン蛍
光体（緑色）と、ユーロピウム付活酸化インドリウム蛍
光体（赤色）であり、青緑色蛍光体は、ユーロピウム付
活ホウリン酸ストロンチウム蛍光体、深赤色蛍光体はマ
ンガン付活フロロゲルマン酸マクネシウム蛍光体で、こ
れら蛍光体の平均粒径は３〜７μｍＦ、Ｓ、Ｓ、Ｓであ
る。このような混合蛍光体から成る蛍光体膜を有する蛍
光ランプは平均演色評価数Ｒａが最高９１にまで赤色に
対する特殊演色評価数Ｒ９が最高９８にまで改善でき、
展示照明用として優れた狭帯域発光形高効率高演色性蛍
光ランプであることが分かっている。Specifically, the above three-component long-range emitting phosphor consists of europium-activated barium magnesium aluminate phosphor (blue), cerium and terbium-activated lanthanum phosphate phosphor (green), and europium-activated barium magnesium aluminate phosphor (green). The blue-green phosphor is a europium-activated strontium borate phosphor, and the deep red phosphor is a manganese-activated magnesium fluorogermanate phosphor. The average particle size of these phosphors is 3 to 3. 7 μmF, S, S, S. A fluorescent lamp having a phosphor film made of such a mixed phosphor can improve the average color rendering index Ra to a maximum of 91 and the special color rendering index R9 for red to a maximum of 98.
It has been found that this is a narrow band emission type, high efficiency, high color rendering fluorescent lamp that is excellent for exhibition lighting.
しかし乍ら、上記狭帯域発光形蛍光ランプは食肉や野菜
、魚の赤味の色を鮮やかに出すが、貝やイカの白味の色
を鮮やかに出させるには少し無理がある。However, although the above-mentioned narrow-band fluorescent lamp vividly brings out the reddish colors of meat, vegetables, and fish, it is a little difficult to bring out the brightly whited colors of shellfish and squid.
そこで、かかる問題点を解決丁べく本発明者は、上記狭
帯域発光形蛍光ランプの複数の蛍光体の混合比、塗布重
量など様々に変えて試作し、研究を笛ねた結果、発光色
が色温度５５００〜７０００ ｋで、馬体軌跡を超えな
い色度範囲にある蛍光ランプが食品の展示照明用として
優れていることを見出し、もって本発明を完成し、提供
するものである。Therefore, in order to solve this problem, the inventor of the present invention made prototypes of the above-mentioned narrow-band fluorescent lamp by varying the mixing ratio of the plurality of phosphors, the coating weight, etc., and as a result of repeated research, the emitted light color was It has been discovered that a fluorescent lamp having a color temperature of 5,500 to 7,000 K and a chromaticity range not exceeding the horse's body locus is excellent for illuminating food exhibitions, thereby completing and providing the present invention.
本発明は４５０．５４０．６１０．６６０ｎ−付近に発
光ピークを有する複数の蛍光体の組合せによりなり、発
光色の色度点がｘｙ色度座標において（ｘ ＝０．３１
０ 、ｙ ＝０．３００）、（ｘ＝０．３０６、ｙ ＝
０．３１６）、（ｘ ＝０．３３０Ｓｙ ＝０．３１０
）、（ｘ ＝０．３３０ 、 ）’ ＝０．３４０ ）
の各点で囲まれる範囲にある蛍光体膜を有することを特
徴とするものである。上記４点の色度点で囲まれる色度
範囲は色温度が５５００ Ｋから７０００ Ｋの黒体軌
跡を超えない範囲である。The present invention consists of a combination of a plurality of phosphors having an emission peak near 450.540.610.660n-, and the chromaticity point of the emission color is at xy chromaticity coordinates (x = 0.31
0, y = 0.300), (x = 0.306, y =
0.316), (x = 0.330Sy = 0.310
), (x = 0.330, )' = 0.340)
It is characterized by having a phosphor film in a range surrounded by each point. The chromaticity range surrounded by the above four chromaticity points is a range in which the color temperature does not exceed the blackbody locus of 5500K to 7000K.
この発明においては、明るさを変えずに蛍光体使用量を
少なくする目的で、透光性紫外線反射膜上に蛍光体膜を
形成することが望ましい。In this invention, in order to reduce the amount of phosphor used without changing brightness, it is desirable to form a phosphor film on the translucent ultraviolet reflecting film.
さらに同じ目的で蛍光体の平均粒径を１〜４μｍＰ、ｓ
、ｓ、ｓにすることが望ましい。また、平均粒径１〜４
μｍＦ、ｓ、ｓ、ｓの蛍光体を使用した場合においては
、蛍光体膜の膜質を安定させ、蛍光体の使用量を少なく
する目的で、蛍光体に対してβ形ピロリン酸カルシウム
を１０〜９０重量％混合し、さらに蛍光体膜の変色を防
止する目的で金ｉｓ酸塩を０．１〜５重量％混合するこ
とが好ましい。Furthermore, for the same purpose, the average particle size of the phosphor was set to 1 to 4 μmP, s.
, s, s is desirable. Also, the average particle size is 1 to 4.
When using a μmF, s, s, s phosphor, in order to stabilize the film quality of the phosphor film and reduce the amount of phosphor used, β-type calcium pyrophosphate is added to the phosphor at a concentration of 10 to 90%. It is preferable to mix % by weight and further mix 0.1 to 5% by weight of isoaurate for the purpose of preventing discoloration of the phosphor film.
４５０．５４０．６１０．６６０ｎｍ付近に発光ピーク
を有する狭帯域発光形蛍光ランプの色温度を５５００に
〜７０００ ｋに上げ、黒体軌跡をを超えない色度範囲
に設定することで、食肉や魚介類、野菜などの食品の色
が自然に感じられる鮮やかさで見えるようになる。By raising the color temperature of a narrow-band fluorescent lamp that has an emission peak around 450.540.610.660 nm to 5500 to 7000 k and setting it to a chromaticity range that does not exceed the blackbody locus, it is possible to improve the color temperature of meat and seafood. You will be able to see the colors of foods such as fruits and vegetables with a vividness that feels natural.
以下、実施例について図面を参照して説明する。 Examples will be described below with reference to the drawings.
下記の表−１に示す蛍光体を混合したものを通常の方法
で、ガラス管内面に塗布して乾燥焼成して蛍光体１）１
を形成し試作された４ｏワ−／ ）の複数の蛍光ランプ
Ｌ、 、Ｌ２・・・のｘ−７色度座標における色度点イ
、口、・・・を第１図に示し、ｘ−ｙ色度と色のみえ方
及び色温度を表−２に示す。A mixture of the phosphors shown in Table 1 below is applied to the inner surface of a glass tube using the usual method, dried and fired to produce phosphor 1) 1
Figure 1 shows the chromaticity points A, 2,... in the x-7 chromaticity coordinate of a plurality of fluorescent lamps L, , L2... of a 4oW-/ ), which were fabricated and prototyped. Table 2 shows the y-chromaticity, color appearance, and color temperature.
表−１
表−２
ところで、試作蛍光ランプＬ５のように、色温度が６０
００ Ｋと高くても、第１図に示すように色度点ホが黒
体軌跡を超えた範囲にあると、特に食肉の赤味が不自然
に見えないことが分かった。また、試作蛍光ランプＬ６
のように、色度点へか黒体軌跡を超えないもので、色温
度が５０００ Ｋと低いものは、食肉を鮮やかに見せる
が、貝やイカの白色をピンクがかった色に見せる不具合
が強い。このような食品の色の見え方の良し悪しの基準
は人によって様々であるが、市場調査したところ第１図
の斜線範囲に色度点が在る蛍光ランプＬｘ−Ｌ４が好評
であることが分かった。Table-1 Table-2 By the way, like the prototype fluorescent lamp L5, the color temperature is 60
It has been found that even when the temperature is as high as 00 K, when the chromaticity point E is in a range beyond the blackbody locus as shown in FIG. 1, the reddish tint of meat does not look unnatural. In addition, the prototype fluorescent lamp L6
If the chromaticity point does not exceed the black body locus, and the color temperature is as low as 5000 K, meat will appear vivid, but the white color of shellfish and squid will appear pinkish. . The standards for how good or bad the colors of foods look like vary from person to person, but a market survey revealed that the fluorescent lamp Lx-L4, which has a chromaticity point in the shaded area in Figure 1, is popular. Do you get it.
第２図は試作蛍光ランプＩ、２の分光エネルギー分布図
で、４５０．５４０．６１０．６６０ｎｍ付近の発光ピ
ークの光が食品の色を強調して自然に鮮やかに見せる。Figure 2 is a spectral energy distribution diagram of prototype fluorescent lamps I and 2. Light with an emission peak around 450.540.610.660 nm emphasizes the color of food, making it appear naturally vivid.
以上の蛍光体膜はガラス管内面に、次のように形成する
ことがコスト的に望ましい。From the viewpoint of cost, it is desirable to form the above phosphor film on the inner surface of the glass tube as follows.
ガラス管の内面に超微粒子酸化アルミニウムなどから成
る透光性紫外線反射膜を形成して、その上に上記色度範
囲にある蛍光体膜を形成する。このようにするとガラス
管内で発生した紫外線は蛍光体膜を内外から発光させる
ので発光効率が上がり、紫外線反射膜の無い同じ明るさ
の蛍光ランプと比べて、高価な蛍光体の使用量が約り０
％少なくでき、蛍光ランプの大幅なコストダウンが図れ
る。A translucent ultraviolet reflection film made of ultrafine aluminum oxide or the like is formed on the inner surface of the glass tube, and a phosphor film having the above-mentioned chromaticity range is formed thereon. In this way, the ultraviolet rays generated within the glass tube cause the phosphor film to emit light from inside and outside, increasing luminous efficiency and reducing the amount of expensive phosphor used compared to a fluorescent lamp of the same brightness without an ultraviolet reflecting film. 0
%, which can significantly reduce the cost of fluorescent lamps.
また、蛍光体の平均粒径はＦ、Ｓ、Ｓ、Ｓ測定法で３〜
７μｍが通常であるが、この平均粒径を１〜４μｍＦ、
ｓ、ｓ、ｓと小さくする。このようにすると明るさは若
干低下するが、蛍光体膜の拡散透過率が数段向上して、
その分、蛍光体塗布重量を少なくすることができる０例
えば、平均粒径を５ ｐ ｍＦ、ｓ、ｓ、ｓから３．１
７ ｍＦ、ｓ、ｓ、ｓ ニ落とした場合、明るさは約１
％低下するが、蛍光体塗布重量は約り０％少なくするこ
とができる。In addition, the average particle size of the phosphor is 3 to 3 by the F, S, S, S measurement method.
7 μm is normal, but this average particle size is 1 to 4 μmF,
Make it smaller like s, s, s. This will reduce the brightness slightly, but the diffuse transmittance of the phosphor film will improve by several steps,
For example, the average particle size can be reduced from 5 p mF, s, s, s to 3.1.
When dropping 7 mF, s, s, s, the brightness is approximately 1
%, but the phosphor coating weight can be reduced by about 0%.
さらに平均粒径１〜４μｍＦ、ｓ、ｓ、ｓの蛍光体に対
してβ形ピロリン酸カルシウムを１０〜９０重量％、金
属硼酸塩を０．１〜５重量％混合すると、明るさが数％
〜１０数％低下するが、蛍光体の使用量を尚更に少なく
することができる。この場合のβ形ピロリン酸カルシウ
ムは蛍光体の平均粒径より大きく、蛍光体の平均粒径の
２倍より小さい粒径の粉末で、紫外線が照射されても発
光しない増量剤で、これを例えば５０重量％混合すると
明るさが約５％低下するが、蛍光体の使用量は半分で済
み、大幅なコストダウンが図れる。但し、蛍光体とβ形
ピロリン酸カルシウムを混合しただけでは、β形ビＵリ
ン酸力ルウシムが紫外線照射で変色することがあるので
、これを防止するために金属硼酸塩を加える。Furthermore, when 10 to 90% by weight of β-type calcium pyrophosphate and 0.1 to 5% by weight of metal borate are mixed with a phosphor having an average particle size of 1 to 4 μm F, s, s, s, the brightness decreases by several percent.
Although the reduction is about 10%, the amount of phosphor used can be further reduced. In this case, the β-type calcium pyrophosphate is a powder with a particle size larger than the average particle size of the phosphor and smaller than twice the average particle size of the phosphor, and is an extender that does not emit light even when irradiated with ultraviolet rays. Although the brightness decreases by about 5% when the weight percentage is mixed, the amount of phosphor used can be halved, resulting in a significant cost reduction. However, if only the phosphor and the β-type calcium pyrophosphate are mixed, the β-type biU phosphate may change color when irradiated with ultraviolet rays, so a metal borate is added to prevent this.
Ｃ発明の効果〕 本発明は以上の構成により次なる効果を奏する。C Effect of invention] The present invention achieves the following effects with the above configuration.
請求項１記載の蛍光ランプは、食肉や鮮魚、野菜などの
食品の色を自然に近く、がっ、鮮やかに見せる効果に優
れ、特に食品の展示照明用室光ランプとして好適なもの
となる。The fluorescent lamp according to claim 1 has an excellent effect of making the colors of foods such as meat, fresh fish, vegetables, etc. appear close to natural and vivid, and is particularly suitable as a room light lamp for display lighting of foods.
請求項１〜３記載の蛍光ランプにおいては、蛍光体の使
用量が少なくできて蛍光ランプの低コスト化を容易にす
る。In the fluorescent lamp according to any one of claims 1 to 3, the amount of phosphor used can be reduced, making it easy to reduce the cost of the fluorescent lamp.
第１図は本発明に係る蛍光ランプの色度範囲を説明する
ためのｘ−ｙ色度座標図、第２図は本発明に係る蛍光ラ
ンプの一実施例における分光エネルギー分布図である。FIG. 1 is an x-y chromaticity coordinate diagram for explaining the chromaticity range of the fluorescent lamp according to the present invention, and FIG. 2 is a spectral energy distribution diagram in one embodiment of the fluorescent lamp according to the present invention.
Claims (4)
ｍ）に発光ピークを有する複数の蛍光体の組合せにより
なり、発光色の色度点がｘｙ色度座標において（ｘ＝０
．３１０、ｙ＝０．３００）、（ｘ＝０．３０６、ｙ＝
０．３１６）、（ｘ＝０．３３０、ｙ＝０．３１０）、
（ｘ＝０．３３０、ｙ＝０．３４０）の各点で囲まれる
範囲にある蛍光体膜を有することを特徴とする蛍光ラン
プ。(1) 450, 540, 610, 660nm (±20n
m), and the chromaticity point of the emitted color is at xy chromaticity coordinates (x=0
．． 310, y=0.300), (x=0.306, y=
0.316), (x=0.330, y=0.310),
A fluorescent lamp characterized by having a phosphor film in a range surrounded by points (x=0.330, y=0.340).
を特徴とする請求項１記載の蛍光ランプ。(2) The fluorescent lamp according to claim 1, characterized in that a phosphor film is formed on the translucent ultraviolet reflection film.
イッシャーサブシープサイダー）であることを特徴とす
る請求項１又は２記載の蛍光ランプ。(3) Average particle size of phosphor: 1 to 4 μmF. S. S. The fluorescent lamp according to claim 1 or 2, characterized in that it is S (Fischer sub sheepsider).
〜９０重量％、金属硼酸塩を０．１〜５重量％混合した
ことを特徴とする請求項３記載の蛍光ランプ。(4) β-type calcium pyrophosphate to 10% of the phosphor
4. The fluorescent lamp according to claim 3, wherein the fluorescent lamp contains a metal borate of 0.1 to 5% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20239188A JPH0251844A (en) | 1988-08-12 | 1988-08-12 | Fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20239188A JPH0251844A (en) | 1988-08-12 | 1988-08-12 | Fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0251844A true JPH0251844A (en) | 1990-02-21 |
Family
ID=16456719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20239188A Pending JPH0251844A (en) | 1988-08-12 | 1988-08-12 | Fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0251844A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006222007A (en) * | 2005-02-14 | 2006-08-24 | Osram-Melco Ltd | Fluorescent lamp |
| JP2012503037A (en) * | 2008-09-15 | 2012-02-02 | オスラム・シルバニア・インコーポレイテッド | Phosphor blend for compact fluorescent lamp and lamp containing the same |
| US8926110B2 (en) | 2011-12-16 | 2015-01-06 | Panasonic Coporation | Lighting device for illuminating meat |
| US9376766B2 (en) | 2008-09-02 | 2016-06-28 | Interface, Inc. | Low weight-hardback carpet tile |
-
1988
- 1988-08-12 JP JP20239188A patent/JPH0251844A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006222007A (en) * | 2005-02-14 | 2006-08-24 | Osram-Melco Ltd | Fluorescent lamp |
| JP4689294B2 (en) * | 2005-02-14 | 2011-05-25 | オスラム・メルコ株式会社 | Fluorescent lamp |
| US9376766B2 (en) | 2008-09-02 | 2016-06-28 | Interface, Inc. | Low weight-hardback carpet tile |
| JP2012503037A (en) * | 2008-09-15 | 2012-02-02 | オスラム・シルバニア・インコーポレイテッド | Phosphor blend for compact fluorescent lamp and lamp containing the same |
| US8926110B2 (en) | 2011-12-16 | 2015-01-06 | Panasonic Coporation | Lighting device for illuminating meat |
| EP2605619A3 (en) * | 2011-12-16 | 2017-04-12 | Panasonic Intellectual Property Management Co., Ltd. | LED lighting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6356606B2 (en) | Dental lighting device | |
| JP3424566B2 (en) | Fluorescent lamps and lighting equipment | |
| CN105849920B (en) | Light emitting device and method for designing light emitting device | |
| EP2324098B1 (en) | Phosphor blend for a compact fluorescent lamp and lamp containing same | |
| CN107454933A (en) | Using the multi-channel illumination device system and method for mixed spectra | |
| JP3040719B2 (en) | Discharge lamp for general lighting and lighting equipment for general lighting | |
| JPH0719482B2 (en) | Lighting equipment | |
| JP6367471B2 (en) | Lighting system and lighting method for indoor exhibition lighting | |
| JP2015144231A (en) | Light-emitting device and method for designing light emitting device | |
| WO2015099115A1 (en) | Light-emitting device and method for designing light emitting device | |
| JPH0251844A (en) | Fluorescent lamp | |
| CN211743149U (en) | Color temperature adjustable color enhanced LED lamp | |
| JP3595218B2 (en) | Fluorescent lamp | |
| JP3405044B2 (en) | Light-emitting composition and fluorescent lamp using the same | |
| JPH0636746A (en) | Fluorescent lamp | |
| JPH0333186A (en) | Fluorescent lamp | |
| JP6673983B2 (en) | Light emitting device and method of manufacturing light emitting device | |
| JPH10214600A (en) | Fluorescent lamp | |
| JPS62234862A (en) | Fluorescent lamp | |
| JP4689294B2 (en) | Fluorescent lamp | |
| JPH0613039A (en) | Bulb type eluorescent lamp | |
| JPS6160538B2 (en) | ||
| JPH10312775A (en) | Incandescent lamp color fluorescent lamp | |
| JPS593829B2 (en) | fluorescent lamp | |
| CN113375066A (en) | LED lighting device and food showcase |