JP4245786B2 - lighting equipment - Google Patents

lighting equipment Download PDF

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Publication number
JP4245786B2
JP4245786B2 JP2000230520A JP2000230520A JP4245786B2 JP 4245786 B2 JP4245786 B2 JP 4245786B2 JP 2000230520 A JP2000230520 A JP 2000230520A JP 2000230520 A JP2000230520 A JP 2000230520A JP 4245786 B2 JP4245786 B2 JP 4245786B2
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JP
Japan
Prior art keywords
light
guide plate
shelf
light guide
light source
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.)
Expired - Fee Related
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JP2000230520A
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Japanese (ja)
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JP2002042508A (en
Inventor
憲作 厚美
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.)
Panasonic Corp
Panasonic Electric Works Co Ltd
Original Assignee
Panasonic Corp
Matsushita Electric Works Ltd
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Priority to JP2000230520A priority Critical patent/JP4245786B2/en
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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

【0001】
【発明の属する技術分野】
この発明は、書架棚用照明器具等の照明器具に関するものである。
【0002】
【従来の技術】
従来のこの種の照明器具には、図5に示すようなものがあった。図5(a)は書架棚12の天面に反射笠11と光源手段として蛍光灯等10を設け、書架棚12の鉛直面P、書架棚12の前水平面Q、および天井面を照射するものである。
【0003】
図5(b)は書架棚12の天面にアーム13を設け、そのアーム13の先端に光源手段としての蛍光灯等10を設け、書架棚12の鉛直面、書架棚12の前水平面および天井面を照明するものである。
【0004】
また図5(c)は書架棚12間に渡らせる形でアーム14を設け、そのアーム14の中間部に光源としての蛍光灯等10を設けて、書架棚12の鉛直面、書架棚12の前水平面、および天井面を照明するものである。
【0005】
図5(d)は書架棚12の天面に反射部15と光源手段としての蛍光灯等10を設け、反射部15からの反射光により書架棚12の鉛直面、書架棚12の前水平面および天井面を照射するものである。
【0006】
図5(e)は書架棚12の天面に光源手段としての蛍光灯等10を設け、天井16からの反射光により書架棚12の鉛直面、書架棚12の前水平面および天井面を照射するものである。
【0007】
【発明が解決しようとする課題】
しかし、前述のような照明手段では様々な課題がある。まず従来例の図5(a)では、蛍光灯等10や反射笠11が所定の大きさを有してしまうことと、有効に光を照射するために蛍光灯等10と反射笠11の間にある程度の空間を設ける必要があるために、照明器具自体が大きくなってしまい、書架棚12と天井面との間にスペースがないような所には設置がしにくく、また意匠的にも優れない等の問題があった。
【0008】
また、蛍光灯等10が露出している場合には、光源の直視によるグレアが大きく、照明効果を損なう可能性があるのと、書架棚12からの本の出し入れをする作業時等に誤って本が蛍光灯等に接触し、光源を破損してしまう恐れがあった。
【0009】
さらに蛍光灯等10からは熱や紫外線の影響があり、書架棚12に収納する本等のそれによる劣化が懸念される問題があった。
【0010】
次に、従来例の図5(b)、(c)においては、蛍光灯等10やアーム13、14で所定の大きさを有してしまうことと、有効に光を照射するために蛍光灯等10と書架棚12との距離をある程度設ける必要があることから、また有効に光を照射させるために、蛍光灯等10と書架棚12との距離をある程度設ける必要があることから、アーム13、14が大きくなり、書架棚12のと天井面との間にスペースがないような所には設置がしにくく、また意匠的にも優れない等の問題があった。また配光性能として、図5(c)の場合は書架棚12近くに人が立った場合に、その人が影になり、書架棚12の鉛直面、および書架棚12の前水平面に十分な光が照射されない等の問題があった。
【0011】
さらに蛍光灯等10からは熱や紫外線の影響があり、書架棚12に収納する本等のそれによる劣化が懸念される問題があった。
【0012】
次に従来例の図5(d)では蛍光灯等10や反射部15で所定の大きさを有してしまうことと、有効に光を照射させるために、蛍光灯等10や反射部15との距離をある程度設ける必要があることから、反射部15が大きくなり、書架棚12と天井面との間にスペースがないような所には設置がしにくく、また意匠的にも優れない等の問題があった。
【0013】
最後に従来例の図5(e)においては、有効に光を照射するために、蛍光灯等10と天井16との距離をある程度設ける必要があることから、書架棚12と天井面との間にスペースがないような所には設置がしにくい等の問題があった。
【0014】
したがって、この発明の目的は、上述した不具合、問題点を解決すべくなされたものであり、器具本体が薄形で意匠性がよく、懐の狭い箇所にも設置でき、かつ書架棚に適用した場合、書架棚鉛直面、書架棚前水平面、および天井面の必要照射範囲に光を効果的に照射でき、またその光に含まれる熱や紫外線が少なく、照射物に対する影響が少なくでき、光源が外的衝撃で容易に破損することがなく、さらに光源等によるグレアが少ない照明器具を提供することである。
【0015】
【課題を解決するための手段】
請求項1記載の照明器具は、天井面の下方に設置された棚の天部より先端が前方に突出するように取付けられて前記棚の前水平面、前記棚の鉛直面および前記天井面を照射する照明器具において、
明基板からなりその下面を出射面としかつ先端面を上方に向けて傾斜した導光板と、この導光板の後端面から光を入射する光源とを備え、
前記導光板の内部を進む光の一部は前記出射面から前記棚の前水平面に照射されるとともに、さらに前記導光板の内部を進む光は前記先端面に達し、前記先端面から屈折した光が前記天井面を照射し、前記先端面から反射した光が前記出射面を屈折して前記棚の鉛直面を照射するものである。
【0016】
請求項1記載の照明器具によれば、導光板により薄形で意匠性よくでき、懐の狭い個所にも設置でき、熱や紫外線が少なく照射物に対する影響を少なくでき光源が外的衝撃で容易に破損することがなくグレアが少ない。また傾斜する先端面が透明であるので天井面を照明することが可能である。また、導光板の下面より書架棚前水平面を照明でき、先端面の傾斜により書架棚の鉛直面を照明することができる。
【0019】
請求項記載の照明器具は、請求項において、前記導光板の上面に反射手段を有するものである。
【0020】
請求項記載の照明器具によれば、請求項と同様な効果のほか、効率よく下面より光を出射することができる。
【0021】
請求項3記載の照明器具は、請求項1において、前記導光板の前記出射面が水平である
【0022】
請求項記載の照明器具によれば、請求項と同様な効果のほか、本の出し入れの邪魔にならない。
【0023】
請求項4記載の照明器具は、請求項1において、前記導光板および前記光源を保持するための器具本体を有し、前記光源を交換するための開閉カバーを前記器具本体の上面に設けたものである。
【0024】
請求項記載の照明器具によれば、請求項と同様な効果のほか、光源の交換が安全で比較的容易にできる。
【0025】
【発明の実施の形態】
この発明の一実施の形態を図1から図4により説明する。すなわち、図1は本発明の一実施の形態の書架棚用照明器具の概略を、図2は本発明の一実施の形態の器具側面断面、平面および底面を説明する図である。
【0026】
本発明の器具は光源として、蛍光灯等1を用いる。これはできる限り後述する導光板2に光を効率的に入射させるために、出来る限り光束(光の量)をもち、かつ管径の細いものを用いることが望ましいことから、直管形のHf蛍光ランプ20等が適している。
【0027】
次に光透過性を有する透明基板の一方の面を透明な面とし、その透明な面と対向する他方の面に反射手段3を備えた導光板2を光放射手段として用いている。例えば透明なアクリル板18の上面に白反射シート19を貼付し下面を出射面2aとした導光板2を用いることが考えられる。また、導光板2の一端面に上方に向けて傾斜した傾斜部4を設けたものを用いる。
【0028】
透明なアクリル板18は図1に示すように書架棚5の天部より前方に突出して配置される。この透明なアクリル板18は器具本体24で保持され、またHf蛍光ランプ20はアクリル板18の後端面側で器具本体24に保持されたランプソケット23で装着されている。Hf蛍光ランプ20の交換は器具本体24の上面から、カバー21を外して交換する。Hf蛍光ランプ20を点灯させる点灯装置6の安定器22も、器具本体24の内部に保持されている。本発明器具は書架棚に対して、図3、図4の一実施の形態の器具17の取付時の横断面および天面を示す図にみるように蛍光灯等1が書架棚5の長手方向に平行に配置するように設置する。なお、25は端子台、26は電源穴、27は木ねじ用取付穴である。
【0029】
図1で蛍光灯等1から導光板2の後端面へ入射した光は、導光板2の内部で反射を繰り返して進み、反射手段3の部分で反射率が変化するため、導光板2の透明な出射面2aから光が書架棚前面の下向きに一様に放射されて、書架棚5の前水平面9を照射する。
【0030】
さらに、導光板2内を反射を繰り返して進んできた光、および直進してきた光は、導光板2の一端面に設けた傾斜部4に達し、そこで光が屈折および反射をすることにより、屈折した光は上向きに放射され天井面8を照射し、反射した光はある角度で下向きに放射され、書架棚5の鉛直面7を照射することができる。
【0031】
また、本発明の照明器具は、光放射手段として透明な導光板2を用いていることから、反射笠等の器具構成部材による所定の大きさを有する必要がなく、また光源と反射笠等の間の空間を設ける必要がないことから、器具本体を薄型にすることができる。すなわち、光源手段としての蛍光灯等1と光放射手段としての透明な導光板2との組合せにより、器具本体を薄型にすることができる。それにより、懐の狭くスペースが少ないような個所にも設置することができるようになった。また、書架棚への設置状態において、器具自体が薄いため、存在感がなく、優れた意匠性なものにすることができる。
【0032】
また、導光板2の一端面に設けた傾斜部4により、書架棚鉛直面、および天井面の必要照射範囲に光を効果的に照射できる。さらに導光板2の一方の面に反射手段3を設けることにより、書架棚前水平面に効率的に光を照射することができる。
【0033】
さらにこの照明器具から照射される光は、光源からの直接のものではなく、導光板2の内部を伝わってきたものであることから、熱、紫外線成分が削減され、成分による照射物への影響を少なくすることができる。
【0034】
また照射される光は光源からの直接の光ではなく、光源を直視することがないことからグレアを少なくすることができる。
【0035】
さらに、光源が器具本体24、アクリル板18で覆われ、器具設置状態で露出していないことから、例えば書架棚から本を出し入れする時に誤って本が光源に当たる等によって破損するようなことは少なくなる。
【0036】
なお、この発明は書架棚に限らず、例えば什器棚に適用することができる。またこの照明器具をローパーティション組み込み型のデスクの前面パネルの上部に取付けて使用することができる。
【0037】
【発明の効果】
請求項1記載の照明器具によれば、導光板により薄形で意匠性よくでき、懐の狭い個所にも設置でき、熱や紫外線が少なく照射物に対する影響を少なくでき光源が外的衝撃で容易に破損することがなくグレアが少ない。また傾斜する先端面が透明であるので天井面を照明することが可能である。また、導光板の下面より書架棚前水平面を照明でき、先端面の傾斜により書架棚の鉛直面を照明することができる。
【0039】
請求項記載の照明器具によれば、請求項と同様な効果のほか、効率よく下面より光を出射することができる。
【0040】
請求項記載の照明器具によれば、請求項と同様な効果のほか、本の出し入れの邪魔にならない。
【0041】
請求項記載の照明器具によれば、請求項と同様な効果のほか、光源の交換が安全で比較的容易にできる。
【図面の簡単な説明】
【図1】この発明の一実施の形態を説明する概略側面図である。
【図2】(a)はこの発明の一実施の形態の照明器具の側面断面図、(b)はその平面図、(c)は底面図である。
【図3】器具設置状態の書架棚の断面図である。
【図4】その部分平面図である。
【図5】各種の従来例の概略断面図である。
【符号の説明】
1 蛍光灯等
2 導光板
3 反射手段
4 傾斜部
5 書架棚
6 蛍光灯灯の点灯装置
7 書架棚の鉛直面
8 天井面
9 書架棚の前水平面
11 反射笠
12 書架棚
13 アーム
14 アーム
15 反射部
17 本発明器具
18 透明なアクリル板
19 白反射シート
20 Hf蛍光ランプ
21 カバー
22 Hf蛍光ランプの安定器
23 ランプソケット
24 器具本体
25 端子台
26 電源穴
27 木ねじ用取付穴
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting fixture such as a bookshelf lighting fixture.
[0002]
[Prior art]
There existed this kind of conventional lighting fixtures as shown in FIG. In FIG. 5A, a reflector 11 and a fluorescent lamp 10 are provided as light source means on the top surface of the bookcase shelf 12, and the vertical surface P of the bookcase shelf 12, the front horizontal plane Q of the bookcase shelf 12, and the ceiling surface are irradiated. It is.
[0003]
5B, an arm 13 is provided on the top surface of the bookshelf 12 and a fluorescent lamp 10 as a light source means is provided at the tip of the arm 13, and the vertical surface of the bookshelf 12 and the front horizontal surface and ceiling of the bookshelf 12 are shown. It illuminates the surface.
[0004]
In FIG. 5C, an arm 14 is provided so as to extend between the bookshelf 12, and a fluorescent lamp 10 as a light source is provided at an intermediate portion of the arm 14. The front horizontal surface and the ceiling surface are illuminated.
[0005]
In FIG. 5D, a reflector 15 and a fluorescent lamp 10 as a light source means are provided on the top surface of the bookshelf 12, and the vertical surface of the bookshelf 12, the front horizontal surface of the bookshelf 12, and the reflected light from the reflector 15 It irradiates the ceiling surface.
[0006]
In FIG. 5 (e), a fluorescent lamp 10 as a light source means is provided on the top surface of the bookshelf shelf 12, and the vertical surface of the bookshelf shelf 12, the front horizontal surface of the bookshelf shelf 12, and the ceiling surface are irradiated by reflected light from the ceiling 16. Is.
[0007]
[Problems to be solved by the invention]
However, there are various problems with the illumination means as described above. First, in FIG. 5A of the conventional example, the fluorescent lamp 10 or the reflective shade 11 has a predetermined size, and between the fluorescent lamp 10 or the reflective shade 11 in order to irradiate light effectively. Since it is necessary to provide a certain amount of space, the lighting fixture itself becomes large, and it is difficult to install in a place where there is no space between the bookshelf shelf 12 and the ceiling surface, and the design is also excellent. There was no problem.
[0008]
In addition, when the fluorescent lamp 10 or the like is exposed, glare due to direct viewing of the light source is large, which may impair the lighting effect, and it may be inadvertently performed when a book is taken in or out of the shelf 12. There was a risk that the book would come into contact with a fluorescent lamp or the like and damage the light source.
[0009]
Further, the fluorescent lamp 10 has the influence of heat and ultraviolet rays, and there is a problem that the book stored in the bookshelf 12 may be deteriorated by it.
[0010]
Next, in FIGS. 5B and 5C of the conventional example, the fluorescent lamp or the like 10 and the arms 13 and 14 have a predetermined size, and the fluorescent lamp is used to effectively irradiate light. Since it is necessary to provide a certain distance between the lamp 10 and the bookcase shelf 12 and to irradiate light effectively, it is necessary to provide a certain distance between the fluorescent lamp 10 and the bookcase shelf 12. , 14 becomes large, and there is a problem that it is difficult to install in a place where there is no space between the bookshelf shelf 12 and the ceiling surface, and the design is not excellent. As for the light distribution performance, in the case of FIG. 5C, when a person stands near the bookcase shelf 12, the person becomes a shadow, which is sufficient for the vertical surface of the bookcase shelf 12 and the front horizontal surface of the bookcase shelf 12. There was a problem that light was not irradiated.
[0011]
Further, the fluorescent lamp 10 has the influence of heat and ultraviolet rays, and there is a problem that the book stored in the bookshelf 12 may be deteriorated by it.
[0012]
Next, in FIG. 5D of the conventional example, the fluorescent lamp 10 or the reflective part 15 has a predetermined size, and the fluorescent lamp 10 or the reflective part 15 Therefore, it is difficult to install in a place where there is no space between the bookshelf shelf 12 and the ceiling surface, and the design is not excellent. There was a problem.
[0013]
Finally, in FIG. 5E of the conventional example, in order to irradiate light effectively, it is necessary to provide a certain distance between the fluorescent lamp 10 and the ceiling 16, so that the space between the bookshelf shelf 12 and the ceiling surface is necessary. There are problems such as difficult installation in places where there is no space.
[0014]
Therefore, the object of the present invention is to solve the above-mentioned problems and problems, the instrument body is thin, has good design, can be installed in a narrow space, and applied to a bookcase. In this case, light can be effectively irradiated to the required irradiation range on the vertical surface of the bookshelf shelf, the horizontal surface in front of the shelf, and the ceiling surface, and the light and heat contained in the light are less, and the influence on the irradiated object can be reduced. It is an object of the present invention to provide a lighting fixture that is not easily damaged by an external impact and that has less glare due to a light source or the like.
[0015]
[Means for Solving the Problems]
The lighting fixture according to claim 1 is attached so that a tip protrudes forward from a top of a shelf installed below the ceiling surface, and irradiates a front horizontal surface of the shelf, a vertical surface of the shelf, and the ceiling surface. In the lighting equipment to
Comprising a light guide plate which is inclined toward the emission surface Toshikatsu tip surface upward the lower surface consists transparency substrate, and a light source which light enters from the rear end face of the light guide plate,
A part of the light traveling inside the light guide plate is irradiated to the front horizontal surface of the shelf from the emission surface, and the light traveling further inside the light guide plate reaches the front end surface and is refracted from the front end surface. Irradiates the ceiling surface, and the light reflected from the tip surface refracts the exit surface and irradiates the vertical surface of the shelf.
[0016]
According to the lighting apparatus of claim 1, the light guide plate can be thin and have good design, can be installed even in a narrow space, has little heat and ultraviolet rays, can reduce the influence on the irradiated object, and the light source can be easily affected by external impact There is little glare without being damaged. Further, since the inclined front end surface is transparent, the ceiling surface can be illuminated. Further, the horizontal plane in front of the bookshelf shelf can be illuminated from the lower surface of the light guide plate, and the vertical plane of the bookshelf shelf can be illuminated by the inclination of the front end surface.
[0019]
According to a second aspect of the present invention, in the first aspect of the present invention, the lighting apparatus includes a reflecting unit on the upper surface of the light guide plate.
[0020]
According to the lighting fixture of Claim 2 , in addition to the effect similar to Claim 1 , light can be efficiently emitted from the lower surface.
[0021]
According to a third aspect of the present invention , in the lighting device according to the first aspect, the emission surface of the light guide plate is horizontal .
[0022]
According to the lighting apparatus of the third aspect , in addition to the same effect as that of the first aspect , it does not interfere with the taking in and out of the book.
[0023]
Lighting device according to claim 4, wherein, in claim 1, which the light guide plate and having an instrument body for holding the light source, is provided an opening and closing cover for replacing the light source on the upper surface of the instrument body It is.
[0024]
According to the lighting apparatus of the fourth aspect , in addition to the same effect as that of the first aspect , the light source can be exchanged safely and relatively easily.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. That is, FIG. 1 is a diagram illustrating an outline of a lighting device for a bookshelf according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating a side cross-section, a plane, and a bottom surface of the device according to an embodiment of the present invention.
[0026]
The instrument of the present invention uses a fluorescent lamp 1 or the like as a light source. In order to make light incident on the light guide plate 2 described later as much as possible, it is desirable to use a light beam (amount of light) as much as possible and a thin tube diameter. A fluorescent lamp 20 or the like is suitable.
[0027]
Next, the light guide plate 2 provided with the reflecting means 3 on the other surface opposite to the transparent surface is used as the light emitting means. For example, it is conceivable to use the light guide plate 2 in which the white reflection sheet 19 is pasted on the upper surface of the transparent acrylic plate 18 and the lower surface is the exit surface 2a. Moreover, what provided the inclination part 4 inclined toward the upper direction at the one end surface of the light-guide plate 2 is used.
[0028]
As shown in FIG. 1, the transparent acrylic plate 18 is disposed so as to protrude forward from the top of the bookshelf shelf 5. The transparent acrylic plate 18 is held by the instrument main body 24, and the Hf fluorescent lamp 20 is mounted by a lamp socket 23 held by the instrument main body 24 on the rear end face side of the acrylic plate 18. The Hf fluorescent lamp 20 is replaced by removing the cover 21 from the upper surface of the instrument body 24. The ballast 22 of the lighting device 6 for lighting the Hf fluorescent lamp 20 is also held inside the instrument body 24. As shown in FIG. 3 and FIG. 4 showing the cross section and the top surface of the instrument 17 according to the embodiment of FIG. 3 and FIG. Install so that it is parallel to Reference numeral 25 denotes a terminal block, 26 denotes a power supply hole, and 27 denotes a wood screw mounting hole.
[0029]
In FIG. 1, the light incident on the rear end face of the light guide plate 2 from the fluorescent lamp 1 or the like is repeatedly reflected inside the light guide plate 2, and the reflectance changes at the reflection means 3, so that the light guide plate 2 is transparent. Light is uniformly emitted downward from the front surface of the bookcase shelf from the light emitting surface 2a, and irradiates the front horizontal plane 9 of the bookcase shelf 5.
[0030]
Further, the light that has been repeatedly reflected through the light guide plate 2 and the light that has traveled straight reach the inclined portion 4 provided on one end surface of the light guide plate 2, where the light is refracted and reflected to be refracted. The reflected light is emitted upward to illuminate the ceiling surface 8, and the reflected light is emitted downward at an angle to irradiate the vertical surface 7 of the bookcase shelf 5.
[0031]
Moreover, since the lighting fixture of this invention uses the transparent light-guide plate 2 as a light radiation means, it does not need to have the predetermined | prescribed magnitude | size by fixture component members, such as a reflective shade, and a light source, a reflective shade, etc. Since there is no need to provide a space between them, the instrument body can be made thin. That is, the instrument body can be made thin by combining the fluorescent lamp 1 or the like as the light source means and the transparent light guide plate 2 as the light emitting means. As a result, it has become possible to install it in places where there is little space and small pockets. Moreover, since the instrument itself is thin in the installation state on the bookshelf shelf, there is no presence and it can be made the outstanding design property.
[0032]
In addition, the inclined portion 4 provided on one end surface of the light guide plate 2 can effectively irradiate light to the required irradiation range of the bookshelf vertical surface and the ceiling surface. Furthermore, by providing the reflecting means 3 on one surface of the light guide plate 2, light can be efficiently irradiated onto the horizontal plane in front of the bookshelf shelf.
[0033]
Furthermore, since the light emitted from the lighting fixture is not directly from the light source but is transmitted through the inside of the light guide plate 2, heat and ultraviolet components are reduced, and the influence of the components on the irradiated object is reduced. Can be reduced.
[0034]
Further, the irradiated light is not direct light from the light source, and since the light source is not directly viewed, glare can be reduced.
[0035]
Furthermore, since the light source is covered with the instrument main body 24 and the acrylic plate 18 and is not exposed in the instrument installation state, for example, when a book is taken in or out of a bookshelf, the book is less likely to be damaged by hitting the light source. Become.
[0036]
In addition, this invention is applicable not only to a bookshelf shelf but a furniture shelf, for example. In addition, this luminaire can be used by being attached to the top of the front panel of a low partition built-in desk.
[0037]
【The invention's effect】
According to the lighting apparatus of claim 1, the light guide plate can be thin and have good design, can be installed even in a narrow space, has little heat and ultraviolet rays, can reduce the influence on the irradiated object, and the light source can be easily affected by external impact There is little glare without being damaged. Further, since the inclined front end surface is transparent, the ceiling surface can be illuminated. Further, the horizontal plane in front of the bookshelf shelf can be illuminated from the lower surface of the light guide plate, and the vertical plane of the bookshelf shelf can be illuminated by the inclination of the front end surface.
[0039]
According to the lighting fixture of Claim 2 , in addition to the effect similar to Claim 1 , light can be efficiently emitted from the lower surface.
[0040]
According to the lighting apparatus of the third aspect , in addition to the same effect as that of the first aspect , it does not interfere with the taking in and out of the book.
[0041]
According to the lighting apparatus of the fourth aspect , in addition to the same effect as that of the first aspect , the light source can be exchanged safely and relatively easily.
[Brief description of the drawings]
FIG. 1 is a schematic side view for explaining an embodiment of the present invention.
2A is a side sectional view of a lighting apparatus according to an embodiment of the present invention, FIG. 2B is a plan view thereof, and FIG. 2C is a bottom view thereof.
FIG. 3 is a cross-sectional view of a bookshelf in an installed state.
FIG. 4 is a partial plan view thereof.
FIG. 5 is a schematic sectional view of various conventional examples.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fluorescent lamp etc. 2 Light guide plate 3 Reflecting means 4 Inclination part 5 Book shelf 6 Lighting device of fluorescent lamp 7 Vertical surface 8 of a bookcase shelf Ceiling surface 9 Front horizontal surface of a bookcase shelf Reflection shade 12 Bookcase shelf 13 Arm 14 Arm 15 Reflection Part 17 Instrument 18 of the present invention Transparent acrylic plate 19 White reflective sheet 20 Hf fluorescent lamp 21 Cover 22 Hf fluorescent lamp ballast 23 Lamp socket 24 Instrument body 25 Terminal block 26 Power supply hole 27 Wood screw mounting hole

Claims (4)

天井面の下方に設置された棚の天部より先端が前方に突出するように取付けられて前記棚の前水平面、前記棚の鉛直面および前記天井面を照射する照明器具において、
明基板からなりその下面を出射面としかつ先端面を上方に向けて傾斜した導光板と、この導光板の後端面から光を入射する光源とを備え、
前記導光板の内部を進む光の一部は前記出射面から前記棚の前水平面に照射されるとともに、さらに前記導光板の内部を進む光は前記先端面に達し、前記先端面から屈折した光が前記天井面を照射し、前記先端面から反射した光が前記出射面を屈折して前記棚の鉛直面を照射する照明器具。
In the lighting fixture that illuminates the front horizontal surface of the shelf, the vertical surface of the shelf, and the ceiling surface attached so that the tip projects forward from the top of the shelf installed below the ceiling surface,
Comprising a light guide plate which is inclined toward the emission surface Toshikatsu tip surface upward the lower surface consists transparency substrate, and a light source which light enters from the rear end face of the light guide plate,
A part of the light traveling inside the light guide plate is irradiated to the front horizontal surface of the shelf from the emission surface, and the light traveling further inside the light guide plate reaches the front end surface and is refracted from the front end surface. Illuminates the ceiling surface, and the light reflected from the tip surface refracts the exit surface to irradiate the vertical surface of the shelf.
前記導光板の上面に反射手段を有する請求項1記載の照明器具。The lighting fixture according to claim 1, further comprising reflecting means on an upper surface of the light guide plate. 前記導光板の前記出射面は水平である請求項1記載の照明器具。The lighting fixture according to claim 1 , wherein the light exit surface of the light guide plate is horizontal . 前記導光板および前記光源を保持するための器具本体を有し、前記光源を交換するための開閉カバーを前記器具本体の上面に設けた請求項1記載の照明器具。The lighting fixture according to claim 1 , further comprising: a fixture main body for holding the light guide plate and the light source , wherein an opening / closing cover for replacing the light source is provided on an upper surface of the fixture main body.
JP2000230520A 2000-07-31 2000-07-31 lighting equipment Expired - Fee Related JP4245786B2 (en)

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JP4975136B2 (en) * 2010-04-13 2012-07-11 シャープ株式会社 Lighting device
JP2012142252A (en) * 2010-12-16 2012-07-26 Konica Minolta Advanced Layers Inc Illumination device and showcase equipped with the same
JP5771784B2 (en) * 2012-10-12 2015-09-02 パナソニックIpマネジメント株式会社 Lighted furniture and lighted interior building materials
JP5857270B2 (en) * 2012-10-12 2016-02-10 パナソニックIpマネジメント株式会社 Illuminated vanity
JP2015095283A (en) * 2013-11-08 2015-05-18 不二サッシ株式会社 Lighting device
JP5771786B2 (en) * 2014-01-27 2015-09-02 パナソニックIpマネジメント株式会社 Illuminated vanity
JP5771787B2 (en) * 2014-01-27 2015-09-02 パナソニックIpマネジメント株式会社 Illuminated vanity

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