JPH0730401U - Compact lighting fixtures - Google Patents

Compact lighting fixtures

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Publication number
JPH0730401U
JPH0730401U JP6833693U JP6833693U JPH0730401U JP H0730401 U JPH0730401 U JP H0730401U JP 6833693 U JP6833693 U JP 6833693U JP 6833693 U JP6833693 U JP 6833693U JP H0730401 U JPH0730401 U JP H0730401U
Authority
JP
Japan
Prior art keywords
light
light guide
light source
main body
guide body
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
JP6833693U
Other languages
Japanese (ja)
Inventor
孝之 荒井
裕美子 久本
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.)
Enplas Corp
Original Assignee
Enplas Corp
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 Enplas Corp filed Critical Enplas Corp
Priority to JP6833693U priority Critical patent/JPH0730401U/en
Publication of JPH0730401U publication Critical patent/JPH0730401U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】 (修正有) 【目的】 暗い場所で、限定された部分を高輝度に照ら
すことのできる、携帯用のコンパクト型照明器具を提供
する。 【構成】 内部に屈折率の異なる透明微粒子を分散混入
した導光体と、導光体の端面に近接配置した光源と、こ
の光源を点灯させるための装置と、導光体の表裏両面上
に配設した拡散部材とプリズム部材とを内側に備えた本
体1に、少なくとも一方の内面には光反射機能を有する
二つの蓋2,3を枢着した。
(57) [Summary] (Correction) [Purpose] To provide a portable compact luminaire capable of illuminating a limited area with high brightness in a dark place. [Structure] A light guide body in which transparent fine particles having different refractive indexes are dispersed and mixed, a light source arranged close to an end surface of the light guide body, a device for turning on the light source, and both front and back surfaces of the light guide body. Two lids 2 and 3 having a light reflecting function are pivotally attached to at least one inner surface of a main body 1 provided with the disposed diffusion member and prism member inside.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、例えばスライドや映画等を映写している暗い場所で、メモを取る、 資料を読むなどの作業をするために好適な照明器具に関する。 The present invention relates to a lighting device suitable for taking notes, reading materials, etc. in a dark place where, for example, a slide or a movie is projected.

【0002】[0002]

【従来技術】[Prior art]

色々な講習会などで、スライドを用いて説明が行われる場合がよくある。 このような場合、会場が暗くなるので、メモを取ったり、手持ちの資料を読ん だりすることができなかった。 そこで従来、小型の照明器具を会場内に持ち込んで、自分の手元のみを明るく することがよく行われていた。 しかし、従来の照明装置は必要以外のところも照らしてしまい、輝度があまり 高すぎると他人の迷惑になり、逆に輝度が低すぎると細かい字の資料などが読み にくくなるなどの問題があった。 また、資料やメモ用紙の下に配置して、下方向から光を透過させることによっ て資料やメモ用紙を照らす照明装置も従来あったが、厚い参考書やノートの場合 には、光が透過せず、使用することができなかった。 Slides are often used to explain at various seminars. In such a case, the venue became dark, so I could not take notes or read the materials I had. Therefore, conventionally, it was often practiced to bring a small lighting fixture into the venue to brighten only one's own hands. However, the conventional lighting device illuminates places other than necessary, and if the brightness is too high, it causes annoyance to others, and if the brightness is too low, it is difficult to read materials in small characters. . In the past, there was a lighting device that was placed under a document or memo paper to illuminate the material or memo paper by transmitting light from below, but in the case of a thick reference book or notebook, the light is not transmitted. And could not be used.

【0003】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

本考案は、高い輝度を有し、しかも光を自分のノートや資料の上などの限られ た部分へのみ出射させることができ、更に、簡単に持ち運びができるコンパクト 型照明器具を提供することを目的とする。 The present invention aims to provide a compact luminaire that has high brightness, can emit light only to a limited part such as one's own notebook or document, and can be easily carried. To aim.

【0004】[0004]

【課題を解決するための手段】[Means for Solving the Problems]

本考案のコンパクト型照明器具は、二つの開口部を有する本体内に、表裏両面 がそれぞれ開口部に面するように、透明で屈折率の異なる微粒子を分散混入した 平板状の導光体を配設し、更に、この導光体の端面に沿うように近接させて光源 を配設し、この導光体の表裏両面上にそれぞれ拡散部材を配設し、そして、それ ぞれの拡散部材上に出射光が拡がらず平行光として照明器具より出射されるよう にするためのプリズム部材とを配設し、本体の外側には、少なくとも一つは内面 に光反射機能を持たせた二つの蓋を、本体の二つの開口部より露出する導光体の 表裏両面上の各々のプリズム部材を別々に完全に覆うことができるように、回動 可能に枢着して構成することで、上記の課題を解決する。 The compact luminaire of the present invention has a flat light guide body in which transparent and fine particles having different refractive indexes are dispersed and mixed so that both front and back surfaces face the openings in a main body having two openings. The light sources are arranged close to each other along the end face of the light guide body, and the diffusion members are arranged on both front and back surfaces of the light guide body. A prism member is provided to allow the emitted light to be emitted as parallel light from the lighting fixture without spreading, and at least one of the two outside the body has a light reflecting function on the inner surface. The lid is rotatably pivoted so as to completely cover the prism members on both front and back surfaces of the light guide exposed through the two openings of the main body. Solve the problem of.

【0005】[0005]

【作用】[Action]

導光体内に屈折率の異なる微粒子を混入することで、端面より導光体内に入射 された光は前記微粒子に次々と当たって方向を変えられていき表裏両面より出射 させ、出射された光は拡散部材で均一に拡散させた後、プリズム部材によって平 行光に変えられる。 故に、導光体の端面より入射された光を効率よく面光源に変換でき、その出射 光は拡がらず、しかも全体として均一な輝度の照明装置を実現できる。 By mixing fine particles with different refractive indexes into the light guide, the light that has entered the light guide from the end face is struck by the fine particles one after another and the direction is changed to be emitted from both the front and back surfaces. After being uniformly diffused by the diffusing member, it is converted into normal light by the prism member. Therefore, the light incident from the end face of the light guide can be efficiently converted into the surface light source, the emitted light does not spread, and the illuminating device having the uniform brightness as a whole can be realized.

【0006】[0006]

【実施例】【Example】

図1は、本考案によるコンパクト型照明器具の両方の蓋を開いて本体を垂直に 立たせた状態を示す斜視図、図2は、下蓋のみを開いた状態を示す斜視図、図3 は、本体の内部の主要構成部品のみを模式的に示す斜視図である。 FIG. 1 is a perspective view showing a state in which both lids of a compact lighting fixture according to the present invention are opened and the main body is vertically erected, FIG. 2 is a perspective view showing a state in which only a lower lid is opened, and FIG. It is a perspective view which shows typically only the main component inside a main body.

【0007】 図中、1は、両面に開口部1aを設けた本体、2は、内面に反射面2aを有し 、先端部2bが鉤の手状に曲げられていて、本体1の左右に設けられた二つの回 動軸1bに回動可能に枢着されている上蓋、3は、内面は反射面になってはおら ず、上蓋2と同様に回動軸1bに回動可能に枢着されている下蓋、4は放電管、 5は、内部に透明で異なる屈折率の微粒子を分散混入した平板状の導光体、6は 拡散シート、7は断面が三角形で横長の凸部7aを多数並設したプリズムシート である。In the figure, 1 is a main body having openings 1a on both sides, 2 is a reflecting surface 2a on the inner surface, and a tip 2b is bent like a hook, and The upper lid 3 rotatably pivoted on the two pivots 1b provided does not have a reflecting surface on the inner surface, and like the upper lid 2, pivotally pivots on the pivot 1b. A lower lid, 4 is a discharge tube, 5 is a flat plate-shaped light guide in which fine particles having a transparent and different refractive index are dispersed and mixed, 6 is a diffusion sheet, 7 is a convex section 7a having a triangular cross section and a horizontally long shape It is a prism sheet in which a large number of are arranged in parallel.

【0008】 本体1の内部に、放電管4と、この放電管4を覆うように配設されたランプホ ルダー8と、図示しない電源及び放電管点灯装置が挿入されている。 そして、放電管4に端面が沿って近接し、かつ、表裏両面が各々開口部1aに 面するように導光体5が配置されている。 更に、導光体5の表裏両面上に拡散シート6が配置され、拡散シート6の上に はプリズムシート7が、凸部7aが互いに直角に交差するように二枚のプリズム シート7が拡散シート6上に重ねられて配置されている。Inside the main body 1, a discharge tube 4, a lamp holder 8 arranged so as to cover the discharge tube 4, a power supply and a discharge tube lighting device (not shown) are inserted. The light guide 5 is arranged so that the end faces thereof are close to the discharge tube 4 and both the front and back surfaces face the opening 1a. Further, a diffusion sheet 6 is arranged on both front and back surfaces of the light guide 5, and a prism sheet 7 is provided on the diffusion sheet 6, and two prism sheets 7 are provided so that the convex portions 7a intersect each other at right angles. 6 are arranged on top of each other.

【0009】 上蓋2及び下蓋3は本体1に回動軸1bを介して回動可能で、しかも、本体1 が上蓋2及び下蓋3に対して希望の角度で固定できるように取り付けられている 。 そして、上蓋2及び下蓋3を閉じると、本休1の両面は完全に上蓋2と下蓋3 に覆われるようになっている。 また、上蓋の先端部2bは、上蓋2及び下蓋3を閉じたとき下蓋3の内面と接 触し、本体1の一方の端面を覆うことができるようになっている。The upper lid 2 and the lower lid 3 are attached to the main body 1 so as to be rotatable via a rotation shaft 1b, and the main body 1 can be fixed to the upper lid 2 and the lower lid 3 at a desired angle. There is. Then, when the upper lid 2 and the lower lid 3 are closed, both sides of the main rest 1 are completely covered with the upper lid 2 and the lower lid 3. Further, the tip portion 2b of the upper lid contacts the inner surface of the lower lid 3 when the upper lid 2 and the lower lid 3 are closed, and can cover one end surface of the main body 1.

【0010】 本考案のコンパクト型照明器具は上述のような構成をしているので、持ち運ぶ ときは、上蓋2と下蓋3を閉じ、バックなどに入れて持ち運ぶことができる。 そして、本やノートのみを照らしたいときは、下蓋3のみを開けて、図2に示 すように本体1を立たせ、次に本やノートの上にちょうど光が来るように本体1 を傾かせて、図示しない放電管点灯装置のスイッチを入れる。Since the compact luminaire of the present invention has the above-mentioned structure, when carrying it, the upper lid 2 and the lower lid 3 can be closed, and the carrying device can be carried in a bag or the like. And when you want to illuminate only a book or a notebook, open only the lower lid 3, stand the main body 1 as shown in FIG. 2, and then tilt the main body 1 so that the light is just above the book or the notebook. , Switch on the discharge tube lighting device (not shown).

【0011】 すると、放電管4が点灯して、導光体5の端面より導光体5内に光が入射され る。 導光体5内に入射した光は、導光体5内に分散混入されている、導光体5とは 屈折率の異なる透明微粒子に次々と当たり進行方向を変えられ、導光体5の表裏 両面より出射され、拡散シート6によって拡散光とされ、更に、二枚のプリズム シート7によってそれぞれ縦方向、横方向の両方向がともに出射方向が平行な向 きになるように光の向きが変えられる。 このとき、上蓋2側に出射された光は、上蓋の反射面2aによって反射されて 、再び導光体5内に戻され、導光体5の反対側の面より出射される。Then, the discharge tube 4 is turned on, and light is incident on the inside of the light guide 5 from the end surface of the light guide 5. The light that has entered the light guide body 5 is successively dispersed into the light guide body 5 by being mixed with transparent fine particles having a refractive index different from that of the light guide body 5 to change its traveling direction. The light is emitted from both the front and back sides, and is made into diffused light by the diffusion sheet 6, and the direction of the light is changed by the two prism sheets 7 so that the emission directions are parallel in both vertical and horizontal directions. To be At this time, the light emitted to the upper lid 2 side is reflected by the reflecting surface 2a of the upper lid, returned to the inside of the light guide 5 again, and emitted from the surface on the opposite side of the light guide 5.

【0012】 導光体5内に、屈折率の異なる透明微粒子を分散混入させたことで、導光体5 の端面から入れた光を効率よく導光体5の表裏両面より出射させることができる ので、小型で高輝度の面光源を実現できる。 また、拡散シート6を用いて拡散光にした後、二枚のプリズムシート7を用い て、出射光の出射方向を縦横両方向とも平行光に変えているので、光は発光面全 体で均一な輝度となり、しかも拡がらず限られた範囲のみを照らせるので、スラ イドなどを映写している場所でも、他人に迷惑をかける心配がなく、細かい字の 参考書などを読んだりすることができる。Since the transparent fine particles having different refractive indexes are dispersed and mixed in the light guide body 5, light entering from the end surface of the light guide body 5 can be efficiently emitted from both front and back surfaces of the light guide body 5. Therefore, a compact and high-brightness surface light source can be realized. In addition, after the diffused sheet 6 is used to make the diffused light, the two prism sheets 7 are used to change the outgoing direction of the outgoing light to parallel light in both vertical and horizontal directions, so that the light is uniform over the entire light emitting surface. Since it has brightness, and it does not spread and illuminates only a limited area, you can read a reference book in small letters without worrying about others even in a place where a slide is projected.

【0013】 更に、図1に示すように、上蓋2と下蓋3の両方を開き、本体1を垂直に立て ると、広い机の上全体を照らすことができ、しかも上方向へは光はほとんど向か わないので、輝度は低下するが、暗い部屋で一つの机で数人が簡単なメモを取る というような作業が可能となる。Further, as shown in FIG. 1, when both the upper lid 2 and the lower lid 3 are opened and the main body 1 is erected vertically, it is possible to illuminate the entire top of a wide desk, and light is not emitted upward. Since it is barely faced, the brightness will be reduced, but it will be possible for a few people to take simple notes with one desk in a dark room.

【0014】 尚、上記実施例では、上蓋2のみに内面に反射面2aを設けたが、下蓋3の内 面にも反射面を設けてもよい。 また、導光体5内に分散混入する透明微粒子としては、シリコンなどが望まし い。Although the reflecting surface 2a is provided on the inner surface of the upper lid 2 only in the above embodiment, the reflecting surface may be provided on the inner surface of the lower lid 3 as well. Silicon or the like is preferably used as the transparent fine particles dispersed and mixed in the light guide body 5.

【0015】 また更に、上記実施例では、それぞれの拡散シート6上に、二枚のプリズムシ ート7を、凸部7a同士が互いに交差するように重ねることで、縦横両方向とも 平行な光となるようにしているが、例えば、図4に示すような四角錐のような形 状をした凸部7bを多数有するプリズムシートを用いれば、それぞれの拡散シー ト6上に一枚ずつプリズムシート7を重ねるだけで、出射方向が縦横両方向とも 平行な向きの光に変えることができる。Furthermore, in the above-described embodiment, two prism sheets 7 are stacked on each diffusion sheet 6 so that the convex portions 7a intersect each other, so that light is parallel in both vertical and horizontal directions. However, for example, if a prism sheet having a large number of convex portions 7b shaped like a quadrangular pyramid as shown in FIG. 4 is used, one prism sheet 7 is provided on each diffusion sheet 6. Just by overlapping, the light can be converted into light with parallel emission in both vertical and horizontal directions.

【0016】[0016]

【考案の効果】[Effect of device]

上述のように、本考案のコンパクト型照明器具は、スライドなどを映写してい る暗い部屋での、資料を読んだり、メモを取ったりするときの作業用照明に大変 便利である。 As described above, the compact luminaire of the present invention is very convenient for working lighting when reading a document or taking notes in a dark room where slides and the like are projected.

【0017】 また、夜間の走行中の自動車内の助手席で、地図を見たり、小銭入れからお金 を取り出したりする作業にも、本考案のコンパクト型照明装置を使用することが できる。 但し、この場合は、自動車から電気を供給できる装置を本体内に備えておくと 便利である。The compact lighting device of the present invention can also be used for work such as looking at a map or taking out money from a coin purse in the passenger seat of an automobile running at night. However, in this case, it is convenient to equip the main body with a device that can supply electricity from the automobile.

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

【図1】本考案によるコンパクト型照明器具の一例の、
上蓋と下蓋の両方を開いたときの状態を示す斜視図であ
る。
FIG. 1 shows an example of a compact lighting fixture according to the present invention,
It is a perspective view showing a state when both the upper lid and the lower lid are opened.

【図2】図1に示すコンパクト型照明器具の、下蓋のみ
を開いたときの状態を示す斜視図である
FIG. 2 is a perspective view showing a state of the compact lighting fixture shown in FIG. 1 when only a lower lid is opened.

【図3】本考案によるコンパクト型照明器具の、本体内
の主要構成部品のみを模式的に示す斜視図である。
FIG. 3 is a perspective view schematically showing only the main components in the main body of the compact lighting fixture according to the present invention.

【図4】本考案によるコンパクト型照明器具に用いるプ
リズムシートの、図3に示すものとは異なるものの一例
を示す斜視図である。
FIG. 4 is a perspective view showing an example of a prism sheet different from that shown in FIG. 3, which is used in the compact luminaire according to the present invention.

【符号の説明】[Explanation of symbols]

1 本体 2 上蓋 3 下蓋 4 放電管 5 導光体 6 拡散シート 7 プリズムシート 8 ランプホルダー 1 Main Body 2 Upper Lid 3 Lower Lid 4 Discharge Tube 5 Light Guide 6 Diffusion Sheet 7 Prism Sheet 8 Lamp Holder

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 内部に屈折率の異なる透明微粒子を分散
混入した平板状の導光体と、前記導光体の端面に沿って
近接配置した光源と、前記導光体の表裏両面上に各々配
設した二枚の拡散部材と、前記二枚の拡散部材上に各々
重なるように配設されたプリズム部材と、前記光源を点
灯させるための装置とを、内側に備え、外側には回動軸
と、前記光源から出射された光を前記導光体及び前記拡
散部材と前記プリズム部材を通して外側へ出射できるよ
うに設けられた二つの開口部とを備えた本体と、前記回
動軸を介して回動可能で、かつ任意の角度で半固定でき
るように枢着された、少なくとも一方は内面に光反射機
能を有し、前記二つの開口部をそれぞれ完全に覆うこと
ができる二つの蓋体よりなることを特徴とするコンパク
ト型照明器具。
1. A flat plate-shaped light guide in which transparent fine particles having different refractive indexes are dispersed and mixed, a light source arranged in proximity along an end face of the light guide, and front and back surfaces of the light guide, respectively. The two diffusing members arranged, the prism members arranged so as to overlap each other on the two diffusing members, and the device for turning on the light source are provided on the inner side, and are rotated outward. A main body having an axis and two openings provided so that light emitted from the light source can be emitted to the outside through the light guide body, the diffusing member, and the prism member; and the rotating shaft. Two lids that are pivotable so that they can be semi-fixed at any angle, at least one of which has a light-reflecting function on the inner surface and can completely cover the two openings. A compact luminaire characterized by comprising:
JP6833693U 1993-11-16 1993-11-16 Compact lighting fixtures Pending JPH0730401U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6833693U JPH0730401U (en) 1993-11-16 1993-11-16 Compact lighting fixtures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6833693U JPH0730401U (en) 1993-11-16 1993-11-16 Compact lighting fixtures

Publications (1)

Publication Number Publication Date
JPH0730401U true JPH0730401U (en) 1995-06-06

Family

ID=13370906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6833693U Pending JPH0730401U (en) 1993-11-16 1993-11-16 Compact lighting fixtures

Country Status (1)

Country Link
JP (1) JPH0730401U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002133906A (en) * 2000-10-25 2002-05-10 Kuraray Co Ltd Surface light source element and display device using it
JP2002203417A (en) * 2000-12-28 2002-07-19 Nichia Chem Ind Ltd Light emitting device
WO2003031869A1 (en) * 2001-10-04 2003-04-17 Mitsubishi Rayon Co., Ltd. Area light source and lightguide used therefor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002133906A (en) * 2000-10-25 2002-05-10 Kuraray Co Ltd Surface light source element and display device using it
JP4628538B2 (en) * 2000-10-25 2011-02-09 株式会社クラレ Surface light source element and display device using the same
JP2002203417A (en) * 2000-12-28 2002-07-19 Nichia Chem Ind Ltd Light emitting device
JP4491966B2 (en) * 2000-12-28 2010-06-30 日亜化学工業株式会社 Light emitting device
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