JP2000106015A - Reflecting plate of luminaire - Google Patents

Reflecting plate of luminaire

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Publication number
JP2000106015A
JP2000106015A JP11161753A JP16175399A JP2000106015A JP 2000106015 A JP2000106015 A JP 2000106015A JP 11161753 A JP11161753 A JP 11161753A JP 16175399 A JP16175399 A JP 16175399A JP 2000106015 A JP2000106015 A JP 2000106015A
Authority
JP
Japan
Prior art keywords
straight side
length
angle
straight
respect
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
Application number
JP11161753A
Other languages
Japanese (ja)
Inventor
Shigemi Hotta
田 繁 美 堀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP11161753A priority Critical patent/JP2000106015A/en
Publication of JP2000106015A publication Critical patent/JP2000106015A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To desirably increase illuminance independent of the shape of a shade in the back of a fluorescent tube. SOLUTION: The cross section shape of a reflecting plate 10 is formed in an asymmetrical angle shape having a first linear side 11 of length L, a second linear side 12 of length L having an angle of 152 deg.-156 deg. on one side of the first linear side 11, a third linear side 13 of length 0.40L or more having an angle of 152 deg.-156 deg. to the second linear side 12, a fourth linear side 14 of length 0.60L-0.65L having an angle of 163 deg.-167 deg. on the other side of the first linear side 11, a fifth linear side 15 of length 0.60L-0.65L having an angle of 163 deg.-167 deg. to the fourth linear side 14, and a sixth linear side 16 of length 0.40L or more having an angle of 163 deg.-167 deg. to the fifth linear side 15.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は照明器具の反射板に
関し、特に既設の蛍光灯に取付けて照度アップを図るこ
とのできるようにした反射板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflector for a lighting fixture, and more particularly to a reflector attached to an existing fluorescent lamp so as to increase the illuminance.

【０００２】[0002]

【従来の技術】例えば、オフィス、店舗、工場等では天
井に照明器具を取付けて室内全体を所定の明るさに照明
することが行われているが、照明を更に全体的に明るく
し、あるいは特定の箇所、例えばパーソナルコンピュー
タの上方や作業者の手元だけを特に明るくする必要が生
じる場合がある。しかし、オフィス等の状況によっては
照明器具を増設するスペースがなかったり、あるいは照
度をアップさせるためには多数の照明器具を必要として
非常にコスト高になり、照明器具の増設ができないこと
もある。2. Description of the Related Art For example, in offices, stores, factories, and the like, a lighting fixture is mounted on a ceiling to illuminate the entire room to a predetermined brightness. , For example, only above the personal computer or the operator's hand may need to be particularly brightened. However, depending on the situation in an office or the like, there is no space for additional lighting equipment, or a large number of lighting equipment is required to increase the illuminance, resulting in a very high cost.

【０００３】そこで、蛍光管の背後に反射板を取付け、
蛍光灯の後方への光を前方に反射させて照度をアップす
ることが提案されている。かかる反射板には光の反射効
率を考慮して左右対称な断面形状が採用されるのが一般
的である（例えば、図１０の反射板５０、参照）。Therefore, a reflector is attached behind the fluorescent tube,
It has been proposed to reflect light to the rear of a fluorescent lamp forward to increase the illuminance. Generally, a symmetrical cross-sectional shape is adopted for such a reflection plate in consideration of the light reflection efficiency (for example, see the reflection plate 50 in FIG. 10).

【０００４】[0004]

【発明が解決しようとする課題】しかし、蛍光灯のかさ
部には図６に示されるようなトラフ型（図６(a) 参
照）、逆富士型（図６(b) 参照）、埋め込み型（図６
(c) 参照）、等の種々な形式があり、蛍光灯のかさ部に
反射板をねじや金具によって取付けようとすると、かさ
部の形状によっては反射板の取付け方向が制限され、所
望の照度アップ効果を図ることができないという問題が
あった。However, a trough type (see FIG. 6 (a)), an inverted Fuji type (see FIG. 6 (b)) as shown in FIG. (FIG. 6
(Refer to (c))), and if the reflector is mounted on the bulk of the fluorescent lamp using screws or metal fittings, the mounting direction of the reflector is limited depending on the shape of the bulk, and the desired illuminance There was a problem that the up effect could not be achieved.

【０００５】他方、図９に示されるように、反射板５０
にホルダー５１をねじ５２で固定し、蛍光管にホルダー
５１を抱きつかせて反射板５０を既設の蛍光灯の背後に
取付け、蛍光灯の後方への光を前方に反射させて照度を
アップすることが提案されている。On the other hand, as shown in FIG.
Fixing the holder 51 with screws 52, holding the holder 51 to the fluorescent tube, mounting the reflector 50 behind the existing fluorescent lamp, and reflecting the light behind the fluorescent lamp forward to increase the illuminance Has been proposed.

【０００６】しかし、照明器具によっては蛍光管の外径
が異なることがあり、かかる方法では蛍光管の外径に応
じてホルダー５１の大きさを変更する必要があり、多種
類のホルダー５１を準備する必要が生じる。また、蛍光
管の両端部位にホルダー５１の一部が露出するので，見
栄えの点でも好ましいものではない。However, the outer diameter of the fluorescent tube may vary depending on the lighting equipment. In this method, it is necessary to change the size of the holder 51 according to the outer diameter of the fluorescent tube. Need to be done. Further, since a part of the holder 51 is exposed at both ends of the fluorescent tube, it is not preferable in terms of appearance.

【０００７】本発明は、かかる問題点に鑑み、蛍光管背
後のかさ部の形状や蛍光管の外径に関係なく、所望の照
度アップを図ることができるようにした照明器具の反射
板を提供することを課題とする。The present invention has been made in view of the above problems, and provides a reflector for a lighting apparatus capable of increasing a desired illuminance irrespective of the shape of the bulky portion behind the fluorescent tube and the outer diameter of the fluorescent tube. The task is to

【０００８】[0008]

【課題を解決するための手段】そこで、本発明に係る照
明器具の反射板は、既設の蛍光管の背後に取付けられて
蛍光管の光を所望の方向に反射して照度をアップさせる
反射板において、断面形状が、長さＬの中央の第１の直
線辺、該第１の直線辺の一側方に第１の直線辺に対して
１５２°ないし１５６°の角度をなして第１の直線辺と
ほぼ同じ長さＬに延びる第２の直線辺、該第２の直線辺
の一側方に第２の直線辺に対して１５２°ないし１５６
°の角度をなして第１の直線辺の長さＬに対して０．４
０Ｌ以上の長さに延びる第３の直線辺、上記第１の直線
辺の他側方に第１の直線辺に対して１６３°ないし１６
７°の角度をなして第１の直線辺の長さＬに対して０．
６０Ｌないし０．６５Ｌの長さに延びる第４の直線辺、
該第４の直線辺の他側方に第４の直線辺に対して１６３
°ないし１６７°の角度をなして第１の直線辺の長さＬ
に対して０．６０Ｌないし０．６５Ｌの長さに延びる第
５の直線辺、及び該第５の直線辺の他側方に第５の直線
辺に対して１６３°ないし１６７°の角度をなして第１
の直線辺の長さＬに対して０．４０Ｌ以上の長さに延び
る第６の直線辺からなる非対称角状をなし、該断面形状
が上記蛍光管の長手方向のほぼ全長にわたって連続さ
れ、上記第１の直線辺を含む外面をほぼ所望の方向に指
向させた状態において上記第１ないし第６の直線辺のう
ち、既設の蛍光管背後の反射板を取付可能なかさ部の部
位に対してほぼ平行な直線辺を含む外面を上記蛍光管背
後のかさ部に取付可能となす一方、その内面が鏡面処理
されていることを特徴とする。SUMMARY OF THE INVENTION Accordingly, a reflector for a lighting fixture according to the present invention is mounted behind an existing fluorescent tube to reflect light from the fluorescent tube in a desired direction to increase illuminance. , The cross-sectional shape of the first straight side at the center of the length L, and the first straight side at an angle of 152 ° to 156 ° with respect to the first straight side on one side. A second straight side extending substantially the same length L as the straight side, one side of the second straight side between 152 ° and 156 with respect to the second straight side;
At an angle of ° to the length L of the first straight side, 0.4
A third straight side extending to a length of 0 L or more, and 163 ° to 16 ° with respect to the first straight side on the other side of the first straight side.
With respect to the length L of the first straight side at an angle of 7 °, 0.
A fourth straight side extending from 60L to 0.65L in length;
163 to the other side of the fourth straight side with respect to the fourth straight side
The length L of the first straight side at an angle of
A fifth straight side extending to a length of 0.60 L to 0.65 L, and an angle of 163 ° to 167 ° with respect to the fifth straight side on the other side of the fifth straight side. First
Has an asymmetrical square shape consisting of a sixth straight side extending to a length of 0.40 L or more with respect to the length L of the straight side, and the cross-sectional shape is continuous over substantially the entire length in the longitudinal direction of the fluorescent tube; With the outer surface including the first straight side oriented substantially in a desired direction, the first to sixth straight sides substantially correspond to a portion of a bulk portion to which a reflector behind an existing fluorescent tube can be attached. The outer surface including the parallel straight sides can be attached to the shank behind the fluorescent tube, while the inner surface is mirror-finished.

【０００９】本発明の特徴の１つは反射板の断面形状を
第１ないし第６の直線辺からなる非対称角状とした点に
ある。これにより、蛍光管背後のかさ部がトラフ型、逆
富士型、埋め込み型等、どのような形状であっても、非
対称角状のいずれかの直線辺を選択することによって反
射板を所望の方向に向けて蛍光管のかさ部に取付けるこ
とができる。One of the features of the present invention resides in that the cross-sectional shape of the reflection plate is formed as an asymmetrical square having first to sixth straight sides. This allows the reflector to be oriented in the desired direction by selecting one of the asymmetrical square straight sides, regardless of the shape of the bulk behind the fluorescent tube, such as trough, inverted Fuji, or embedded. Can be attached to the bulb of the fluorescent tube.

【００１０】上記非対称角状の条件は本件発明者らの実
験によって得られたもので、上記条件の範囲を外れる
と、蛍光管からの光が特定の方向に偏って所望の方向に
全体的に反射されず、所望の照度アップ効果が得られな
いことが実験的に確認されている。The above-mentioned asymmetric angular condition is obtained by the experiment of the present inventors. If the condition is out of the above range, the light from the fluorescent tube is deviated in a specific direction and totally in a desired direction. It has been experimentally confirmed that the light is not reflected and a desired illuminance increase effect cannot be obtained.

【００１１】具体的には、第２の直線辺が第１の直線辺
に対して１５５°の角度をなし、第３の直線辺が第２の
直線辺に対して１５５°の角度をなして０．４２Ｌの長
さに延び、第４の直線辺が第１の直線辺に対して１６５
°の角度をなして０．６２Ｌの長さに延び、第５の直線
辺が第４の直線辺に対して１６５°の角度をなして０．
６２Ｌの長さに延び、第６の直線辺が第５の直線辺に対
して１６５°の角度をなして０．４２Ｌの長さに延びる
断面形状が最もよい照度アップ効果が得られることが確
認された。Specifically, the second straight side forms an angle of 155 ° with respect to the first straight side, and the third straight side forms an angle of 155 ° with respect to the second straight side. Extends to a length of 0.42 L, and the fourth straight side is 165 with respect to the first straight side.
Extend at an angle of 0.62 L at an angle of 0.degree., And the fifth straight side forms an angle of 165.degree.
It is confirmed that the cross-sectional shape extending to the length of 62L and extending to the length of 0.42L with the sixth straight side forming an angle of 165 ° with the fifth straight side provides the best illuminance increasing effect. Was done.

【００１２】本発明では本来後方に照射されるべき光を
前方に反射し、照度アップを図るようにしているが、か
かる場合に下方から蛍光灯器具を見上げると、かさ部に
黒い影ができて非常に気にかかることがある。他方、上
述の断面形状のうち、第３及び／又は第６の直線辺をな
くすか、第２、第５の直線辺に対して２００°以上の角
度、好ましくは２２０°〜２７０°の角度で折り曲げる
と、下方の照度は若干低下するが、光の一部がかさ部を
照射し、気にかかる黒い影が解消できることを知見する
に至った。According to the present invention, the light which should be irradiated rearward is reflected forward to increase the illuminance. In such a case, when the fluorescent lamp is looked up from below, a black shadow is formed on the bulge. It can be very disturbing. On the other hand, of the above-described cross-sectional shapes, the third and / or sixth straight sides are eliminated, or at an angle of 200 ° or more, preferably 220 ° to 270 ° with respect to the second and fifth straight sides. When folded, the illuminance at the lower side is slightly reduced, but it has been found that a part of the light irradiates the shading portion, and that a black shadow that is a concern can be eliminated.

【００１３】即ち、本発明に係る照明器具の反射板は、
既設の蛍光管の背後に取付けられて蛍光管の光を所望の
方向に反射して照度をアップさせる反射板において、断
面形状が、長さＬの中央の第１の直線辺、該第１の直線
辺の一側方に第１の直線辺に対して１５２°ないし１５
６°の角度をなして第１の直線辺とほぼ同じ長さＬに延
びる第２の直線辺、上記第１の直線辺の他側方に第１の
直線辺に対して１６３°ないし１６７°の角度をなして
第１の直線辺の長さＬに対して０．６０Ｌないし０．６
５Ｌの長さに延びる第４の直線辺、及び該第４の直線辺
の他側方に第４の直線辺に対して１６３°ないし１６７
°の角度をなして第１の直線辺の長さＬに対して０．６
０Ｌないし０．６５Ｌの長さに延びる第５の直線辺を含
む非対称角状をなし、該断面形状が上記蛍光管の長手方
向のほぼ全長にわたって連続され、上記第１の直線辺を
含む外面をほぼ所望の方向に指向させた状態において上
記第１、第２、第４及び第５の直線辺のうち、既設の蛍
光管背後の反射板を取付可能なかさ部の部位に対してほ
ぼ平行な直線辺を含む外面を上記蛍光管背後のかさ部に
取付可能となす一方、その内面が鏡面処理されているこ
とを特徴とする。That is, the reflecting plate of the lighting apparatus according to the present invention comprises:
In a reflecting plate attached behind an existing fluorescent tube and reflecting light of the fluorescent tube in a desired direction to increase illuminance, a cross-sectional shape is a first straight side at the center of a length L, the first straight side, 152 ° to 15 ° with respect to the first straight side on one side of the straight side
A second straight side extending at substantially the same length L as the first straight side at an angle of 6 °, 163 ° to 167 ° with respect to the first straight side on the other side of the first straight side; From 0.60 L to 0.6 with respect to the length L of the first straight side.
A fourth straight side extending to a length of 5L, and 163 ° to 167 ° with respect to the fourth straight side on the other side of the fourth straight side
At an angle of 0.6 with respect to the length L of the first straight side.
An outer surface including a fifth straight side extending to a length of 0 L to 0.65 L and having an asymmetrical corner shape, the cross-sectional shape being continuous over substantially the entire length of the fluorescent tube in the longitudinal direction, and including the first straight side is In a state where the reflector is oriented in a substantially desired direction, a straight line substantially parallel to the portion of the first, second, fourth, and fifth straight sides to which the reflector behind the existing fluorescent tube can be attached can be attached. The outer surface including the side can be attached to the shank behind the fluorescent tube, and the inner surface is mirror-finished.

【００１４】本発明の特徴の１つは第３、第６の直線辺
を除く、第１、第２、第４、第５の直線辺を少なくとも
含んで断面形状を構成するようにした点にあり、第３及
び第６の一方の直線辺はそのまま含み、他方を２００°
以上の角度に折り曲げるようにしてもよく、両辺を２０
０°以上の角度に折り曲げるようにしてもよい。One of the features of the present invention is that a cross-sectional shape is configured to include at least the first, second, fourth, and fifth straight sides, excluding the third and sixth straight sides. Yes, one of the third and sixth straight sides is included as it is, and the other is 200 °
You may make it bend at the above-mentioned angle,
It may be bent at an angle of 0 ° or more.

【００１５】即ち、上記断面形状が、上記第２の直線辺
の一側方に第２の直線辺に対して２００°以上の角度を
なして延びる第３の直線辺を更に含む非対称角状とする
か、又は上記第５の直線辺の他側方に第５の直線辺に対
して２００°以上の角度をなして延びる第６の直線辺を
更に含む非対称角状とすることもできる。That is, the cross-sectional shape is an asymmetrical angular shape further including a third straight side extending at one side of the second straight side at an angle of 200 ° or more with respect to the second straight side. Alternatively, it may be an asymmetrical corner shape further including a sixth straight side extending to the other side of the fifth straight side at an angle of 200 ° or more with respect to the fifth straight side.

【００１６】本発明においても第１、第２、第４、第５
の各直線辺の関係は上述の条件を満たすのがよい。即
ち、上記第２の直線辺が上記第１の直線辺に対して１５
５°の角度をなし、上記第４の直線辺が上記第１の直線
辺に対して１６５°の角度をなして０．６２Ｌの長さに
延び、上記第５の直線辺が上記第４の直線辺に対して１
６５°の角度をなして０．６２Ｌの長さに延びているの
がよい。Also in the present invention, the first, second, fourth, fifth
It is preferable that the relationship between the straight sides satisfies the above condition. That is, the second straight side is 15 degrees from the first straight side.
An angle of 5 ° is formed, the fourth straight side extends to a length of 0.62 L at an angle of 165 ° to the first straight side, and the fifth straight side is formed of the fourth straight side. 1 for straight side
It may extend at an angle of 65 ° to a length of 0.62L.

【００１７】反射板はねじや金具を用いて蛍光管背後の
かさに取付けるようにしてもよいが、反射板の外面の任
意の部位に磁石体を接着剤や粘着剤で取付け、該磁石体
を既設の蛍光管背後のかさに磁着させて取付けるように
するのがよい。例えば、反射板の基材をアルミ系合金で
製作し、その内面を鏡面処理を行う一方、反射板に磁石
体を接着剤、粘着剤又はねじで取付け、磁石体によって
蛍光管背後のかさ部に取付けるようにすることができ
る。鏡面処理は例えば研磨処理でもよく、又適切な材料
（例えば、チタンやシリコン等）を用い、公知の方法で
コーティングするようにしてもよい。The reflector may be attached to the back of the fluorescent tube using screws or metal fittings. However, a magnet is attached to an arbitrary portion on the outer surface of the reflector with an adhesive or an adhesive, and the magnet is attached. It is preferable to attach the magnet tube behind the existing fluorescent tube by magnetically attaching it. For example, the base of the reflector is made of an aluminum-based alloy, and the inner surface of the reflector is mirror-finished, while a magnet is attached to the reflector with an adhesive, an adhesive, or a screw, and the magnet is attached to the shank behind the fluorescent tube. Can be installed. The mirror surface treatment may be, for example, a polishing treatment, or may be performed using a suitable material (for example, titanium, silicon, or the like) and coating by a known method.

【００１８】[0018]

【作用及び発明の効果】本発明によれば、反射板の断面
形状を非対称角状としたので、蛍光管背後のかさ部がト
ラフ型、逆富士型、埋め込み型等、どのような形状であ
っても、非対称角状のいずれかの直線辺を選択すること
によって反射板を所望の方向に向けて取付けることがで
き、所望の照度アップ効果を確保することができる。According to the present invention, since the cross-sectional shape of the reflector is asymmetrical, the shape of the bulkhead behind the fluorescent tube can be any shape such as trough type, inverted Fuji type, or embedded type. However, by selecting any one of the asymmetrical straight sides, the reflector can be mounted in a desired direction, and a desired illuminance increasing effect can be secured.

【００１９】また、磁石体を用いて反射板を蛍光管背後
のかさ部に磁着させるようにすると、蛍光管の外径に応
じた大きさのホルダーを準備する必要がなく、又蛍光管
の外部にホルダー等が露出することがないので、蛍光管
の見栄えが損なわれることもない。Further, if the reflecting plate is magnetically attached to the shank behind the fluorescent tube by using a magnet body, it is not necessary to prepare a holder having a size corresponding to the outer diameter of the fluorescent tube, and the fluorescent tube is not required. Since the holder and the like are not exposed to the outside, the appearance of the fluorescent tube is not impaired.

【００２０】[0020]

【発明の実施の形態】以下、本発明を図面に示す具体例
に基づいて詳細に説明する。図１ないし図５は本発明に
係る照明器具の反射板の好ましい実施形態を示す。図に
おいて、反射板１０は例えばアルミ系合金を用い、６つ
の直線辺からなる非対称角状の断面形状を蛍光管２０の
長手方向のほぼ全長にわたった連続した形状に製作さ
れ、その内面の全面には適当な鏡面材料、例えばシリコ
ンやチタン等がコーティングされている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to specific examples shown in the drawings. 1 to 5 show a preferred embodiment of a reflector of a lighting fixture according to the present invention. In the figure, a reflecting plate 10 is made of, for example, an aluminum alloy, and has an asymmetrical angular cross-sectional shape consisting of six straight sides in a continuous shape extending over substantially the entire length of the fluorescent tube 20 in the longitudinal direction. Is coated with a suitable mirror material such as silicon or titanium.

【００２１】ここに、反射板１０の断面形状を詳細に説
明すると、図１に示されるように、非対称角状の中央に
は長さＬの第１の直線辺１１が設けられ、該第１の直線
辺１１の一側方には第１の直線辺１１に対して１５５°
の角度α１をなす第２の直線辺１２が第１の直線辺１１
とほぼ等しい長さＬだけ延びて連続され、該第２の直線
辺１２の一側方には第２の直線辺１２に対して１５５°
の角度α２をなす第３の直線辺１３が第１の直線辺１１
の長さＬに対して０．４２Ｌの長さだけ延びて連続され
ている。Here, the sectional shape of the reflector 10 will be described in detail. As shown in FIG. 1, a first straight side 11 having a length L is provided at the center of the asymmetrical corner. 155 ° with respect to the first straight side 11 on one side of the straight side 11
Of the second straight line 12 forming the angle α1 of the first straight line 11
Is extended by a length L substantially equal to the length of the second straight side 12 and 155 ° with respect to the second straight side 12 on one side of the second straight side 12.
Of the third straight line 13 forming the angle α2 of the first straight line 11
Is extended continuously by a length of 0.42L with respect to the length L of the line.

【００２２】また、第１の直線辺１１の他側方には第１
の直線辺に対して１６５°の角度α３をなす第４の直線
辺１４が第１の直線辺１１の長さＬに対して０．６２Ｌ
の長さだけ延びて連続され、該第４の直線辺１４の他側
方には第４の直線辺１４に対して１６５°の角度α４を
なす第５の直線辺１５が第１の直線辺１１の長さＬに対
して０．６２Ｌの長さだけ延びて連続され、第５の直線
辺１５の他側方には第５の直線辺１５に対して１６５°
の角度α５をなす第６の直線辺１６が第１の直線辺１１
の長さＬに対して０．４２Ｌの長さだけ延びて連続され
ている。The first side of the first straight side 11 is
Of the first straight side 11 is 0.62 L with respect to the length L of the first straight side 11.
And a fifth straight side 15 that forms an angle α4 of 165 ° with the fourth straight side 14 at the other side of the fourth straight side 14 is a first straight side. 11 is extended by a length of 0.62L with respect to the length L, and the other side of the fifth straight side 15 is 165 ° with respect to the fifth straight side 15.
The sixth straight side 16 forming the angle α5 is the first straight side 11
Is extended continuously by a length of 0.42L with respect to the length L of the line.

【００２３】本例の反射板１０を取付ける場合、蛍光管
２０を照明器具から外し、反射板１０を所望の方向、例
えば下方に指向させた状態において、その断面形状にお
ける第１〜第６の直線辺１１〜１６のうちから、蛍光管
背後のかさ部２１の形状に適した１つを選択し、その外
面に磁石体３０を接着剤又は粘着剤、例えば両面接着テ
ープを用いて固定し、あるいは磁石体３０のカバーに雌
ねじを刻設し、反射板１０にねじを挿通させてカバーに
螺合させ、該カバー内に磁石体３０を嵌め込んで磁石体
３０を固定し、磁石体３０を蛍光管背後のかさ部２１に
磁着させると、反射板１０を蛍光管背後のかさ部２１に
取付けることができる。後は蛍光管２０を元のようにセ
ットすればよい。When attaching the reflecting plate 10 of this embodiment, the fluorescent tube 20 is detached from the lighting equipment, and the reflecting plate 10 is directed in a desired direction, for example, downward, and the first to sixth straight lines in the cross-sectional shape thereof are provided. From the sides 11 to 16, one suitable for the shape of the bulk portion 21 behind the fluorescent tube is selected, and the magnet 30 is fixed to the outer surface thereof with an adhesive or an adhesive, for example, a double-sided adhesive tape, or A female screw is engraved on the cover of the magnet body 30, a screw is inserted through the reflection plate 10 and screwed into the cover, the magnet body 30 is fitted into the cover, the magnet body 30 is fixed, and the magnet body 30 is fluoresced. When the magnetic plate is magnetically attached to the bulk 21 behind the tube, the reflector 10 can be attached to the bulk 21 behind the fluorescent tube. After that, the fluorescent tube 20 may be set as before.

【００２４】例えば、蛍光管背後のかさ部２１がトラフ
型の場合（図６の(a) 参照）、反射板２０の中央の第１
の直線辺１１を選び、その面を磁石体３０によってかさ
部２１に磁着させると、図３に示されるように反射板１
０を下方に向けてセットすることができる。For example, when the bulk 21 behind the fluorescent tube is of a trough type (see FIG. 6A), the first central part of the reflector 20 is used.
Is selected and the surface thereof is magnetically attached to the bulk portion 21 by the magnet body 30, and as shown in FIG.
0 can be set downward.

【００２５】また、蛍光管背後のかさ部２１が逆富士型
の場合（図６の(b) 参照）、反射板２０の第２の直線辺
１２を選び、その面を磁石体３０によってかさ部２１に
磁着させると、図４に示されるように反射板１０を下方
に向けてセットすることができる。When the shade portion 21 behind the fluorescent tube is of an inverted Fuji type (see FIG. 6B), the second straight side 12 of the reflector 20 is selected, and its surface is shaded by the magnet 30. When the magnetic plate 21 is magnetically attached, the reflecting plate 10 can be set downward as shown in FIG.

【００２６】また、蛍光管背後のかさ部２１が埋め込み
型の場合（図６の(c) 参照）、反射板２０を上記とは左
右を逆に向け、その第５の直線辺１５を選び、その面を
磁石体３０によってかさ部２１に磁着させると、図５に
示されるように反射板１０を下方に向けてセットするこ
とができる。When the bulkhead 21 behind the fluorescent tube is of an embedded type (see FIG. 6 (c)), the reflector 20 is turned left and right in the opposite direction, and its fifth straight side 15 is selected. When the surface is magnetically attached to the bulk portion 21 by the magnet body 30, the reflecting plate 10 can be set downward as shown in FIG.

【００２７】こうして反射板１０をセットすると、蛍光
管２０から発せられる光うち、後方に向かう光は図２に
示されるように、各直線辺１１〜１６の面によって下方
に向けて乱反射され、蛍光管２０から直接下方に指向す
る光とともに蛍光管２０の下方を全体的に明るく照ら
し、所望の照度アップ効果が得られる。本件発明者らの
試作によれば、４０Ｗの蛍光管の場合、下方の照度を
１．５倍ないし１．８倍にアップできることが確認され
た。When the reflecting plate 10 is set in this manner, of the light emitted from the fluorescent tube 20, the backward light is irregularly reflected downward by the surfaces of the straight sides 11 to 16 as shown in FIG. The entire area below the fluorescent tube 20 is brightly illuminated together with light directed directly downward from the tube 20, and a desired illuminance increasing effect is obtained. According to the prototype of the present inventors, it has been confirmed that the lower illuminance can be increased by 1.5 to 1.8 times in the case of a fluorescent tube of 40 W.

【００２８】ところで、図９に示されるように、反射板
５０にホルダー５１をねじ５２で固定し、ホルダー５１
を蛍光管に抱きつかせて反射板５０を蛍光管背後にセッ
トする方法が提案されているが、かかる方法では蛍光管
の外径に対応した大きさのホルダー５１を多種類準備す
る必要があり、しかもホルダー５１の一部が蛍光管の両
端に露出し、見栄えの点で好ましくない。As shown in FIG. 9, the holder 51 is fixed to the reflection plate 50 with screws 52,
Is hung on the fluorescent tube and the reflector 50 is set behind the fluorescent tube. However, in such a method, it is necessary to prepare many types of holders 51 having a size corresponding to the outer diameter of the fluorescent tube. Moreover, a part of the holder 51 is exposed at both ends of the fluorescent tube, which is not preferable in view.

【００２９】これに対し、本例の構造では磁石体３０を
用いて反射板１０を蛍光管２０の背後にセットしている
ので、ホルダー５１の場合のように多種類の寸法を準備
する必要がなく、又余分な部品が蛍光管２０の表面に露
出することはないので、見栄えが損なわれることもな
い。On the other hand, in the structure of this embodiment, since the reflecting plate 10 is set behind the fluorescent tube 20 using the magnet body 30, it is necessary to prepare various kinds of dimensions as in the case of the holder 51. Also, since no extra parts are exposed on the surface of the fluorescent tube 20, the appearance is not impaired.

【００３０】図７及び図８は第２の実施形態を示す。本
例では第３の直線辺１３が第２の直線辺１２に対して２
００°以上の角度α２、第６の直線辺１６が第５の直線
辺１５に対して２００°以上の角度α５で折り曲げら
れ、蛍光管２０の光の一部が矢印Ａで示されるように後
方に向けて照射されてかさ部を照らすようにしており、
これによって照度は少し低下するものの、かさ部にでき
る黒い影を解消できることとなる。FIGS. 7 and 8 show a second embodiment. In this example, the third straight side 13 is 2
The angle α2 of 00 ° or more and the sixth straight side 16 are bent at an angle α5 of 200 ° or more with respect to the fifth straight side 15, and a part of the light of the fluorescent tube 20 is rearward as shown by the arrow A. It is illuminated toward and illuminates the bulk,
Although the illuminance is slightly reduced by this, the black shadow formed on the bulk can be eliminated.

【図面の簡単な説明】[Brief description of the drawings]

【図１】 本発明に係る照明器具の反射板の好ましい実
施形態における断面形状を示す図である。FIG. 1 is a diagram showing a cross-sectional shape in a preferred embodiment of a reflector of a lighting fixture according to the present invention.

【図２】 上記実施形態の光反射作用を模式的に示す図
である。FIG. 2 is a diagram schematically showing a light reflection action of the embodiment.

【図３】 上記実施形態の取付け例を示す図である。FIG. 3 is a diagram showing an example of attachment of the embodiment.

【図４】 上記実施形態の他の取付け例を示す図であ
る。FIG. 4 is a view showing another example of attachment of the embodiment.

【図５】 上記実施形態の更に他の取付け例を示す図で
ある。FIG. 5 is a view showing still another attachment example of the embodiment.

【図６】 照明器具のかさ部の構造例(a)(b)(c) を示す
図である。FIG. 6 is a view showing structural examples (a), (b), and (c) of a shading portion of a lighting fixture.

【図７】 第２の実施形態における断面形状を示す図で
ある。FIG. 7 is a diagram illustrating a cross-sectional shape according to a second embodiment.

【図８】 上記実施形態の光反射作用を模式的に示す図
である。FIG. 8 is a diagram schematically showing a light reflection action of the embodiment.

【図９】 従来の反射板の取付け構造の一例を示す図で
ある。FIG. 9 is a view showing an example of a conventional mounting structure of a reflector.

【符号の説明】[Explanation of symbols]

１０ 反射板 １１ 第１の直線辺 １２ 第２の直線辺 １３ 第３の直線辺 １４ 第４の直線辺 １５ 第５の直線辺 １６ 第６の直線辺 ２０ 蛍光管 ２１ かさ部 ３０ 磁石体 Reference Signs List 10 reflector 11 first straight side 12 second straight side 13 third straight side 14 fourth straight side 15 fifth straight side 16 sixth straight side 20 fluorescent tube 21 shade 30 magnet body

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】 既設の蛍光管の背後に取付けられて蛍光
管の光を所望の方向に反射して照度をアップさせる反射
板において、 断面形状が、長さＬの中央の第１の直線辺、該第１の直
線辺の一側方に第１の直線辺に対して１５２°ないし１
５６°の角度をなして第１の直線辺とほぼ同じ長さＬに
延びる第２の直線辺、該第２の直線辺の一側方に第２の
直線辺に対して１５２°ないし１５６°の角度をなして
第１の直線辺の長さＬに対して０．４０Ｌ以上の長さに
延びる第３の直線辺、上記第１の直線辺の他側方に第１
の直線辺に対して１６３°ないし１６７°の角度をなし
て第１の直線辺の長さＬに対して０．６０Ｌないし０．
６５Ｌの長さに延びる第４の直線辺、該第４の直線辺の
他側方に第４の直線辺に対して１６３°ないし１６７°
の角度をなして第１の直線辺の長さＬに対して０．６０
Ｌないし０．６５Ｌの長さに延びる第５の直線辺、及び
該第５の直線辺の他側方に第５の直線辺に対して１６３
°ないし１６７°の角度をなして第１の直線辺の長さＬ
に対して０．４０Ｌ以上の長さに延びる第６の直線辺か
らなる非対称角状をなし、 該断面形状が上記蛍光管の長手方向のほぼ全長にわたっ
て連続され、上記第１の直線辺を含む外面をほぼ所望の
方向に指向させた状態において上記第１ないし第６の直
線辺のうち、既設の蛍光管背後の反射板を取付可能なか
さ部の部位に対してほぼ平行な直線辺を含む外面を上記
蛍光管背後のかさ部に取付可能となす一方、その内面が
鏡面処理されていることを特徴とする照明器具の反射
板。1. A reflector which is attached behind an existing fluorescent tube and reflects light of the fluorescent tube in a desired direction to increase illuminance, wherein the cross-sectional shape is a first straight side at the center of a length L. , On one side of the first straight side, between 152 ° and 1 ° with respect to the first straight side.
A second straight side extending at substantially the same length L as the first straight side at an angle of 56 °, and between one side of the second straight side and 152 ° to 156 ° with respect to the second straight side; A third straight side extending at least 0.40 L to the length L of the first straight side at an angle of
At an angle of 163 ° to 167 ° with respect to the length L of the first straight side, from 0.60L to 0.
A fourth straight side extending to a length of 65L, 163 ° to 167 ° with respect to the fourth straight side on the other side of the fourth straight side;
At an angle of 0.60 with respect to the length L of the first straight side.
A fifth straight side extending from L to 0.65L, and 163 with respect to the fifth straight side on the other side of the fifth straight side.
The length L of the first straight side at an angle of
Has an asymmetrical angular shape composed of a sixth straight side extending to a length of 0.40 L or more, and has a cross-sectional shape that is continuous over substantially the entire length of the fluorescent tube in the longitudinal direction, and includes the first straight side. An outer surface including, among the first to sixth straight sides, a straight side substantially parallel to a portion of a shank to which a reflector behind an existing fluorescent tube can be attached when the outer surface is oriented in a substantially desired direction; Characterized in that the inner surface of the reflector can be attached to a shank behind the fluorescent tube, and the inner surface of the reflector is mirror-finished. 【請求項２】 上記第２の直線辺が上記第１の直線辺に
対して１５５°の角度をなし、上記第３の直線辺が上記
第２の直線辺に対して１５５°の角度をなして０．４２
Ｌの長さに延び、上記第４の直線辺が上記第１の直線辺
に対して１６５°の角度をなして０．６２Ｌの長さに延
び、上記第５の直線辺が上記第４の直線辺に対して１６
５°の角度をなして０．６２Ｌの長さに延び、上記第６
の直線辺が上記第５の直線辺に対して１６５°の角度を
なして０．４２Ｌの長さに延びている請求項１記載の照
明器具の反射板。2. The second straight side forms an angle of 155 ° with respect to the first straight side, and the third straight side forms an angle of 155 ° with respect to the second straight side. 0.42
L, the fourth straight side extends to a length of 0.62L at an angle of 165 ° to the first straight side, and the fifth straight side corresponds to the fourth straight side. 16 for straight side
Extends at an angle of 5 ° to a length of 0.62 L;
The reflector of claim 1, wherein the straight side extends at a length of 0.42 L at an angle of 165 ° with respect to the fifth straight side. 【請求項３】 既設の蛍光管の背後に取付けられて蛍光
管の光を所望の方向に反射して照度をアップさせる反射
板において、 断面形状が、長さＬの中央の第１の直線辺、該第１の直
線辺の一側方に第１の直線辺に対して１５２°ないし１
５６°の角度をなして第１の直線辺とほぼ同じ長さＬに
延びる第２の直線辺、上記第１の直線辺の他側方に第１
の直線辺に対して１６３°ないし１６７°の角度をなし
て第１の直線辺の長さＬに対して０．６０Ｌないし０．
６５Ｌの長さに延びる第４の直線辺、及び該第４の直線
辺の他側方に第４の直線辺に対して１６３°ないし１６
７°の角度をなして第１の直線辺の長さＬに対して０．
６０Ｌないし０．６５Ｌの長さに延びる第５の直線辺を
含む非対称角状をなし、 該断面形状が上記蛍光管の長手方向のほぼ全長にわたっ
て連続され、上記第１の直線辺を含む外面をほぼ所望の
方向に指向させた状態において上記第１、第２、第４及
び第５の直線辺のうち、既設の蛍光管背後の反射板を取
付可能なかさ部の部位に対してほぼ平行な直線辺を含む
外面を上記蛍光管背後のかさ部に取付可能となす一方、
その内面が鏡面処理されていることを特徴とする照明器
具の反射板。3. A reflector which is attached behind an existing fluorescent tube and reflects light from the fluorescent tube in a desired direction to increase illuminance, wherein the cross-sectional shape is a first straight side at the center of the length L. , On one side of the first straight side, between 152 ° and 1 ° with respect to the first straight side.
A second straight side extending at substantially the same length L as the first straight side at an angle of 56 °, and a first straight side on the other side of the first straight side.
At an angle of 163 ° to 167 ° with respect to the length L of the first straight side, from 0.60L to 0.
A fourth straight side extending to a length of 65L, and 163 ° to 16 ° with respect to the fourth straight side on the other side of the fourth straight side.
With respect to the length L of the first straight side at an angle of 7 °, 0.
Forming an asymmetrical corner including a fifth straight side extending to a length of 60L to 0.65L, the cross-sectional shape being continuous over substantially the entire length of the fluorescent tube in the longitudinal direction, and forming an outer surface including the first straight side. In a state where the reflector is oriented in a substantially desired direction, a straight line substantially parallel to the portion of the first, second, fourth, and fifth straight sides to which the reflector behind the existing fluorescent tube can be attached can be attached. While the outer surface including the side can be attached to the bulk behind the fluorescent tube,
A reflector for a lighting fixture, the inner surface of which is mirror-finished. 【請求項４】 上記断面形状が、上記第２の直線辺の一
側方に第２の直線辺に対して２００°以上の角度をなし
て延びる第３の直線辺を更に含む非対称角状である請求
項３記載の照明器具の反射板。4. The cross-sectional shape is an asymmetric angular shape further including a third straight side extending to one side of the second straight side at an angle of 200 ° or more with respect to the second straight side. The reflector of the lighting fixture according to claim 3. 【請求項５】 上記断面形状が、上記第５の直線辺の他
側方に第５の直線辺に対して２００°以上の角度をなし
て延びる第６の直線辺を更に含む非対称角状である請求
項３又は４記載の照明器具の反射板。5. A cross-sectional shape having an asymmetrical angular shape further including a sixth straight side extending at an angle of 200 ° or more with respect to the fifth straight side on the other side of the fifth straight side. The reflector of the lighting device according to claim 3 or 4. 【請求項６】 上記第２の直線辺が上記第１の直線辺に
対して１５５°の角度をなし、上記第４の直線辺が上記
第１の直線辺に対して１６５°の角度をなして０．６２
Ｌの長さに延び、上記第５の直線辺が上記第４の直線辺
に対して１６５°の角度をなして０．６２Ｌの長さに延
びている請求項３記載の照明器具の反射板。6. The second straight side forms an angle of 155 ° with respect to the first straight side, and the fourth straight side forms an angle of 165 ° with respect to the first straight side. 0.62
The reflector of claim 3, wherein the reflector extends for a length of L and the fifth straight side extends for a length of 0.62 L at an angle of 165 ° to the fourth straight side. . 【請求項７】 上記既設の蛍光管背後の反射板を取付可
能なかさ部の部位に対してほぼ平行な直線辺を含む外面
の任意の部位には磁石体が接着剤、粘着剤又はねじによ
って取付けられており、該磁石体が既設の蛍光管背後の
かさ部に取付けられるようになした請求項１又は３記載
の照明器具の反射板。7. A magnet body is attached by an adhesive, an adhesive or a screw to an arbitrary portion of an outer surface including a straight side substantially parallel to a portion of a bulk portion to which a reflector behind the existing fluorescent tube can be attached. 4. The reflector of a lighting device according to claim 1, wherein the magnet is attached to a shank behind an existing fluorescent tube.
JP11161753A 1998-07-27 1999-06-09 Reflecting plate of luminaire Pending JP2000106015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11161753A JP2000106015A (en) 1998-07-27 1999-06-09 Reflecting plate of luminaire

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP22756898 1998-07-27
JP10-227568 1998-07-27
JP11161753A JP2000106015A (en) 1998-07-27 1999-06-09 Reflecting plate of luminaire

Publications (1)

Publication Number Publication Date
JP2000106015A true JP2000106015A (en) 2000-04-11

Family

ID=26487768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11161753A Pending JP2000106015A (en) 1998-07-27 1999-06-09 Reflecting plate of luminaire

Country Status (1)

Country Link
JP (1) JP2000106015A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011175144A (en) * 2010-02-25 2011-09-08 Mitaka Koki Co Ltd Secondary mirror of beam down-type solar light condenser
CN106136494A (en) * 2016-09-09 2016-11-23 广东乐源数字技术有限公司 A kind of Intelligent bracelet realizing touch-control reset

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011175144A (en) * 2010-02-25 2011-09-08 Mitaka Koki Co Ltd Secondary mirror of beam down-type solar light condenser
CN106136494A (en) * 2016-09-09 2016-11-23 广东乐源数字技术有限公司 A kind of Intelligent bracelet realizing touch-control reset
CN106136494B (en) * 2016-09-09 2018-02-27 广东乐源数字技术有限公司 The Intelligent bracelet that a kind of achievable touch-control resets

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