JPS62177801A - Lighting fixture - Google Patents
Lighting fixtureInfo
- Publication number
- JPS62177801A JPS62177801A JP1970286A JP1970286A JPS62177801A JP S62177801 A JPS62177801 A JP S62177801A JP 1970286 A JP1970286 A JP 1970286A JP 1970286 A JP1970286 A JP 1970286A JP S62177801 A JPS62177801 A JP S62177801A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- fluorescent lamp
- fresnel lens
- fluorescent lamps
- straight tube
- 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
- 230000003287 optical effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（発明の目的）
（産業上の利用分野）
本発明は直管形の蛍光ランプを用いた照明器具に関する
。DETAILED DESCRIPTION OF THE INVENTION (Objective of the Invention) (Field of Industrial Application) The present invention relates to a lighting fixture using a straight tube fluorescent lamp.
（従来の技術）
従来のこの種の直管形の蛍光ランプを用いた照明器具は
、器具本体の照射開口部に光制御する透光性カバーが設
けられ、この透光性カバーにはランプに平行にプリズム
を形成した構造が採られている。(Prior art) Conventional lighting equipment using this type of straight tube fluorescent lamp has a light-transmitting cover for light control over the irradiation opening of the equipment body, and this light-transmitting cover has a light-transmitting cover that controls light. It has a structure in which parallel prisms are formed.
この直管形蛍光ランプと平行なプリズムを形成したカバ
ーでは断面方向とプリズムとが直交覆る方向には厳密な
光制御ができるが、それ以外の方向例えば断面方向とプ
リズムとか直交しない方向から器具を見るとランプイメ
ージがそのまま出る問題があった。This cover, which has a prism parallel to the straight tube fluorescent lamp, allows strict light control in the direction where the cross-sectional direction and the prism are orthogonal, but it is possible to control the light from other directions, such as directions that are not perpendicular to the cross-sectional direction and the prism. There was a problem where the lamp image appeared as is when looking at it.
（発明が解決しようとする問題点）
上記従来の器具本体の照射間口部に設けたカバーに直管
形蛍光ランプと平行なプリズムを形成した照明器具では
、断面方向とプリズムどが直交する方向以外の光制御が
できず、ノコバーに明りむらが生じる問題を有していた
。(Problems to be Solved by the Invention) In the above-mentioned conventional lighting equipment in which a prism parallel to the straight tube fluorescent lamp is formed on the cover provided at the irradiation frontage of the equipment main body, the direction other than the direction perpendicular to the cross-sectional direction and the prism is The problem was that the light could not be controlled, causing uneven brightness on the saw bar.
本発明は上記問題点に鑑みなされたもので、照明器具を
いずれの方向から見ても器具本体の照射開口部に設けた
カバーに明りむらが生じることのない照明器具を提供す
るものである。The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a lighting fixture in which uneven brightness does not occur on the cover provided at the irradiation opening of the fixture body, no matter which direction the lighting fixture is viewed from.
（問題点を解決するための手段）
本発明の照明器具は直管形の蛍光ランプと、この蛍光ラ
ンプを１本または複数本内包し下面に照射開口部を有し
た器具本体と、この器具本体の照射開口部に配設された
透光性プリズムカバーとを具備し、前記透光性プリズム
カバーは１本の蛍光ランプを内包した前記器具本体では
前記蛍光ランプの長手方向と直交方向となる照射間口部
の間を組合わせ、複数本の蛍光ランプを内包した器具本
体では蛍光ランプの間隔を一辺の長さとした略正方形の
フレネルレンズを組合わせて形成し各フレネルレンズの
焦点を前記蛍光ランプの径方向の略中心に位置させたこ
とを特徴としたものである。(Means for Solving the Problems) The lighting fixture of the present invention includes a straight tube fluorescent lamp, a fixture body containing one or more of the fluorescent lamps and having an irradiation opening on the bottom surface, and a fixture body that includes and a translucent prism cover disposed in the irradiation opening of the device, and the translucent prism cover has an irradiation direction perpendicular to the longitudinal direction of the fluorescent lamp in the instrument body containing one fluorescent lamp. The main body of the appliance, which contains a plurality of fluorescent lamps, is formed by combining approximately square Fresnel lenses with the length of one side equal to the distance between the fluorescent lamps, and the focal point of each Fresnel lens is set to the focal point of the fluorescent lamp. It is characterized by being located approximately at the center in the radial direction.
（作用）
本発明の照明器具は、器具本体の照射開口部に配設され
た透光性のカバーの各フレネルレンズの焦点は直管形蛍
光ランプの径方向の略中心に位置され、カバーのフレネ
ルレンズのいずれの断面をみても断面方向とプリズムと
が直交し、いずれの方向にも光制御ができ、カバーの各
フレネルレンズはそれぞれ１個のモジュールとなり、各
モジュールは全て同一の光学条件となり、各モジュール
は同様な輝き方をし、光むらが生じない。(Function) In the lighting device of the present invention, the focal point of each Fresnel lens of the translucent cover disposed in the irradiation opening of the device body is located approximately at the radial center of the straight tube fluorescent lamp, and No matter which cross-section of the Fresnel lens is viewed, the cross-sectional direction and the prism are orthogonal, allowing light control in either direction.Each Fresnel lens on the cover is a module, and each module has the same optical conditions. , each module shines in the same way, and there is no uneven light.
〈実施例） 本発明の一実施例の構成を図面について説明する。<Example) The configuration of an embodiment of the present invention will be described with reference to the drawings.
１は器具本体で、下面に照射開口部２を形成した細長矩
形形状の箱状に成型され、内面は反射面に形成されてい
る。そしてこの器具本体１の長手方向の端面左右にそれ
ぞれ対向した一対のランプソケット３が設けられている
。そしてこの各一対のランプソケット３に２本の直管形
蛍光ランプ４の両端の端子ビンがそれぞれ接続されてい
る。Reference numeral 1 denotes a main body of the device, which is formed into an elongated rectangular box shape with an irradiation opening 2 formed on the lower surface, and the inner surface is formed as a reflective surface. A pair of lamp sockets 3 are provided on the left and right sides of the longitudinal end face of the appliance main body 1, respectively, facing each other. Terminal pins at both ends of two straight tube fluorescent lamps 4 are connected to each pair of lamp sockets 3, respectively.
また５は前記器具本体１の照射開口部２に配設された透
光性プリズムカバーで、このカバー５は前記直管形蛍光
ランプ４０間ｗＡＬを一辺とする略正方形のフレネルレ
ンズ６を組合わせて一体に形成され、この各フレネルレ
ンズ６の焦点は前記直管形蛍光ランプ４の径方向の略中
心に位置される。Reference numeral 5 denotes a translucent prism cover disposed in the irradiation opening 2 of the device main body 1, and this cover 5 combines a substantially square Fresnel lens 6 whose side is wAL between the straight tube fluorescent lamps 40. The focal point of each Fresnel lens 6 is located approximately at the center of the straight tube fluorescent lamp 4 in the radial direction.
次にこの実施例の作用を説明する。Next, the operation of this embodiment will be explained.
各直管形蛍光ランプ４の点灯でこの各ランプ４から照射
される光はカバー５に直接入射されるとともに器具本体
１の内面の反射面で反射されてカバー５に入射される。When each straight tube fluorescent lamp 4 is turned on, the light emitted from each lamp 4 is directly incident on the cover 5, and is also reflected by the reflective surface on the inner surface of the appliance body 1 and is incident on the cover 5.
そしてこのカバー５に入射された光はカバー５の各フレ
ネルレンズ６にて光学制御されて出射される。この各フ
レネルレンズ６は同芯円状のプリズム７で形成されてい
るため、各フレネルレンズ６の焦点はいずれも各直管形
蛍光ランプ４の略中心に位置され、第３図に示すように
各フレネルレンズ６のいずれの断面方向もプリズム７と
直交し、いずれの方向に出射される光も光学制御され、
明りむらがなく、蛍光ランプ４のイメージがそのまま出
ることがない。The light incident on the cover 5 is optically controlled by each Fresnel lens 6 of the cover 5 and is emitted. Since each Fresnel lens 6 is formed of a concentric prism 7, the focal point of each Fresnel lens 6 is located approximately at the center of each straight tube fluorescent lamp 4, as shown in FIG. Any cross-sectional direction of each Fresnel lens 6 is perpendicular to the prism 7, and the light emitted in either direction is optically controlled.
There is no uneven brightness, and the image of the fluorescent lamp 4 does not appear as is.
またカバー５の各フレネルレンズ６は一辺を各蛍光ラン
プ４の間隔の長さを有する正方形を一つのモジュールと
しており、各モジュールは全て蛍光ランプ４の位置およ
びプリズムの形状の光学条件は同一となり、各フレネル
レンズ６のモジュールは同一の輝きとなり、全体的に均
一の輝きとなる。In addition, each Fresnel lens 6 of the cover 5 has one side of a square having the length of the interval between the fluorescent lamps 4 as one module, and each module has the same optical conditions such as the position of the fluorescent lamp 4 and the shape of the prism. The modules of each Fresnel lens 6 have the same brightness, resulting in uniform brightness overall.
またカバー５の各フレネルレンズ６は巨大に形成する必
要がないため、成型が容易である。Furthermore, since each Fresnel lens 6 of the cover 5 does not need to be made huge, molding is easy.
そして２灯の４０Ｗ直管形蛍光ランプ４を用いる場合、
各蛍光ランプ４０間隔は１５０ ｍとし、カバー５の各
フレネルレンズ６の一辺の長さは１５０履とする。When using two 40W straight tube fluorescent lamps 4,
The interval between the fluorescent lamps 40 is 150 m, and the length of one side of each Fresnel lens 6 of the cover 5 is 150 m.
また前記実施例では２灯の直管形蛍光ランプ４を用いた
器具について説明したが、蛍光ランプ４は２灯に限られ
るものではなく、１灯または複数灯の器具にも適用でき
る。Further, in the embodiment described above, a fixture using two straight tube fluorescent lamps 4 has been described, but the number of fluorescent lamps 4 is not limited to two, and the present invention can be applied to a fixture having one or more lights.
例えば第４図に示すように１本の直管形蛍光ランプを用
いる器具では、透光性カバー５は器具本体１の蛍光ラン
プ４の長手方向と直交方向となる照射開口部２の開口幅
りを一辺の長さとした正方形のフレネルレンズ６を組合
わせて形成し、各フレネルレンズ６の焦点を前記蛍光ラ
ンプ４の径方向の略中心に位置させる。For example, in a device using a single straight tube fluorescent lamp as shown in FIG. It is formed by combining square Fresnel lenses 6 with a side length of , and the focal point of each Fresnel lens 6 is located approximately at the center of the fluorescent lamp 4 in the radial direction.
この実施例の構造でも前記実施例の構造と同様にカバー
５のいずれの方向も断面方向とフレネルレンズ６のプリ
ズムとが直交し、明りむらがなく、輝ぎも均一となる。In the structure of this embodiment, the cross-sectional direction and the prism of the Fresnel lens 6 are perpendicular to each other in any direction of the cover 5, so that there is no unevenness in brightness and the brightness is uniform.
本発明によれば、直管形の蛍光ランプを１本または複数
本内包し下面に照射開口部を右した器具本体の照射間［
１部に透光性プリズムカバーを配設し、このカバーは１
本の蛍光ランプを内包した前記器具本体では照射開口部
の開口幅を、複数本の蛍光ランプを内包した器具本体で
は蛍光ランプの間隔を一辺の長さとした略正方形のフレ
ネルレンズを組合わせて形成し各フレネルレンズの焦点
を前記蛍光ランプの径方向の略中心に位置させたので、
いずれの方向の光も制御され、光むらがなく、蛍光ラン
プのイメージがそのまま出ることがなく、輝きも均一と
なり、またカバーはフレネルレンズが比較的小さく安価
に１９られるものである。According to the present invention, between the irradiation [
A translucent prism cover is placed on one part, and this cover
The width of the irradiation aperture is determined by the width of the irradiation opening in the device body that contains one fluorescent lamp, and the width of the irradiation opening is formed by combining a substantially square Fresnel lens with the length of one side being the distance between the fluorescent lamps in the device body that contains multiple fluorescent lamps. Since the focal point of each Fresnel lens is located approximately at the radial center of the fluorescent lamp,
The light in both directions is controlled, there is no unevenness in the light, the image of the fluorescent lamp does not appear as is, the brightness is uniform, and the cover has a relatively small Fresnel lens and can be made at low cost.
第１図は本発明の一実旅例を示す照明器具の正面図、第
２図は同寸−縦断側面図、第３図は同」−カバーの拡大
断面図、第４図は他の実施例を示づ照明器具の正面図で
ある。
１・・器具本体、２・・照射開口部、４・・直管形蛍光
ランプ、５・・透光性カバー、６・・フレネルレンズ。Fig. 1 is a front view of a lighting fixture showing an example of the present invention, Fig. 2 is a vertical sectional side view of the same size, Fig. 3 is an enlarged sectional view of the same cover, and Fig. 4 is another embodiment. It is a front view of a lighting fixture showing an example. 1. Instrument body, 2. Irradiation opening, 4. Straight tube fluorescent lamp, 5. Translucent cover, 6. Fresnel lens.
Claims (1)
たは複数本内包し下面に照射開口部を有した器具本体と
、この器具本体の照射開口部に配設された透光性プリズ
ムカバーとを具備し、前記透光性プリズムカバーは１本
の蛍光ランプを内包した前記器具本体では前記蛍光ラン
プの長手方向と直交方向となる照射開口部の開口幅を、
複数本の蛍光ランプを内包した器具本体では蛍光ランプ
の間隔を一辺の長さとした略正方形のフレネルレンズを
組合わせて形成し各フレネルレンズの焦点を前記蛍光ラ
ンプの径方向の略中心に位置させたことを特徴とした照
明器具。(1) A straight tube fluorescent lamp, a device body containing one or more fluorescent lamps and having an irradiation opening on the bottom surface, and a translucent prism arranged in the irradiation opening of the device body. and a cover, and the translucent prism cover has an opening width of an irradiation opening in a direction orthogonal to the longitudinal direction of the fluorescent lamp in the instrument body containing one fluorescent lamp,
A device body containing a plurality of fluorescent lamps is formed by combining substantially square Fresnel lenses with the length of one side equal to the distance between the fluorescent lamps, and the focal point of each Fresnel lens is positioned approximately at the radial center of the fluorescent lamps. Lighting equipment with a unique feature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1970286A JPS62177801A (en) | 1986-01-31 | 1986-01-31 | Lighting fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1970286A JPS62177801A (en) | 1986-01-31 | 1986-01-31 | Lighting fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62177801A true JPS62177801A (en) | 1987-08-04 |
Family
ID=12006602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1970286A Pending JPS62177801A (en) | 1986-01-31 | 1986-01-31 | Lighting fixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62177801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009245803A (en) * | 2008-03-31 | 2009-10-22 | Pi Photonics Inc | Rectangular parallelepiped lighting system, and hologram lighting system |
-
1986
- 1986-01-31 JP JP1970286A patent/JPS62177801A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009245803A (en) * | 2008-03-31 | 2009-10-22 | Pi Photonics Inc | Rectangular parallelepiped lighting system, and hologram lighting system |
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