JPH0711368Y2 - High brightness multi-light spot lamp cover - Google Patents
High brightness multi-light spot lamp coverInfo
- Publication number
- JPH0711368Y2 JPH0711368Y2 JP7466692U JP7466692U JPH0711368Y2 JP H0711368 Y2 JPH0711368 Y2 JP H0711368Y2 JP 7466692 U JP7466692 U JP 7466692U JP 7466692 U JP7466692 U JP 7466692U JP H0711368 Y2 JPH0711368 Y2 JP H0711368Y2
- Authority
- JP
- Japan
- Prior art keywords
- fan
- lamp cover
- shaped
- light
- divided
- 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 - Lifetime
Links
- 238000000149 argon plasma sintering Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 238000005286 illumination Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この考案は、合成樹脂製透明板の
表面に三角プリズムを規則的に配列した光散乱板を表面
板としてシャンデリア様の照明光を得るランプカバーに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp cover for obtaining a chandelier-like illumination light by using a light scattering plate in which triangular prisms are regularly arranged on the surface of a transparent plate made of synthetic resin as a surface plate.
【０００２】[0002]
【従来の技術】上記の光散乱板を用いた照光装置又はラ
ンプカバーは既に公知であるが照光面が平板状であるた
め点光源による輝点の数が一定で比較的少ない他、照光
面から得られる照度も低いものであった。2. Description of the Related Art An illuminating device or a lamp cover using the above-mentioned light scattering plate is already known, but since the illuminating surface is flat, the number of bright spots by the point light source is constant and relatively small. The illuminance obtained was also low.
【０００３】[0003]
【解決しようとする問題点】本案は、点光源を光源と
し、三角プリズム付透明合成樹脂製光散乱板を照光面と
するランプカバーにおいて照光面における輝点（スポッ
ト）の数と照度を増加させることが可能なランプカバー
を提供するものである。[Problems to be Solved] The present invention increases the number and the illuminance of bright spots (spots) on the illuminating surface in a lamp cover using a point light source as a light source and a transparent synthetic resin light scattering plate with a triangular prism as an illuminating surface. The present invention provides a lamp cover that can be used.
【０００４】[0004]
【解決手段】本案ランプカバーは、光散乱板が中心円形
部を除いて少なくとも１つの同心環状部として分割され
ると共に該環状部は半径方向に等分に分割されて対称形
状の偶数個の扇形部とされ、各扇形部は隣接する扇形部
と同一面を構成しないように高さ位置を違えて配置され
ると共に各扇形部の周縁部は隣接する扇形部の夫々の周
縁部に達する垂直壁を介して連接されてなるものであ
る。In the lamp cover of the present invention, a light-scattering plate is divided into at least one concentric annular portion excluding a central circular portion, and the annular portion is equally divided in a radial direction, and an even number of fan-shaped symmetrical portions are formed. Each fan-shaped portion is arranged at a different height so that the fan-shaped portion does not form the same plane as the adjacent fan-shaped portion and the peripheral edge of each fan-shaped portion reaches the peripheral edge of each adjacent fan-shaped portion. It is connected through.
【０００５】本案において使用する表面に三角錐体プリ
ズムを備えた光散乱板は、実公昭５４−４２５５８第１
図に開示されているものである。本案において照光面の
光散乱部を扇形として形成するのはカバー全体の対称性
を維持するためであって光学的理由によるものではな
い。また扇形部の大きさ、形状等は成型上の都合によっ
て任意である。更に段差（間隔距離）は一定である必要
はない。The light-scattering plate having a triangular pyramid prism on the surface used in the present invention is disclosed in Japanese Utility Model Publication No. 54-42558, No. 1.
It is what is disclosed in the figure. In the present invention, the light-scattering portion of the illuminated surface is formed in a fan shape in order to maintain the symmetry of the entire cover and not for optical reasons. The size and shape of the fan-shaped portion are arbitrary depending on the convenience of molding. Furthermore, the step (spacing distance) does not have to be constant.
【０００６】[0006]
【実施例】ランプカバー１は、全体がアクリル樹脂製一
体成型品である。２は照光面、３は胴部である。照光面
２は、表面に多数の三角錐体プリズムを規則的に配列し
た光散乱板で構成され、中心円形部Ａとその外周部の環
状部Ｂ、更に最外周環状部Ｃとからなり、環状部Ｂ及び
Ｃは夫々半径方向に６分割された扇形部Ｓで構成される
と共に各扇形部は互いに隣接する扇形部と同一面を構成
しないように位置されている。例えば図１において、環
状部Ｃの扇形部Ｃ−１，Ｃ−３，Ｃ−５は同一面即ち点
光源Ｐに最も近い位置に等距離で置かれ、Ｃ−２，Ｃ−
４，Ｃ−６の各面は上記の面より３〜６ｍｍ遠く（図２
において下方）に位置されている。この結果、隣接する
扇形板は互いに段差を有している。４は胴部に連接する
外側壁である。環状部Ｂの扇形部Ｂ−１，Ｂ−３，Ｂ−
５はＣ−２，Ｃ−４等と同一面か又は更により遠方に位
置され、Ｂ−２，Ｂ−４，Ｂ−６は中心円形部Ａと共に
同一面を構成し、上記の面よりも段差を措いて更に遠く
に位置するように配設されている。５は内側壁、６は区
画壁であって外側壁４と同様に実質的な垂直壁とする。
上記の垂直壁の少なくとも片面には縦溝７が形成されて
いる。８は取付用フランジである。上記実施例品におい
て図３の如く光源Ｐを点光源とすると、図４に示すよう
に輝点が扇形部隣接域に集中して現われ、図５に示す平
板状光散乱板による輝点に較べて輝点数が増加する他照
度も大きくなる。この詳細な理由は明らかではないが隣
接部の垂直壁の反射と各扇形部の段差即ち点光源からの
距離の差によるものと考えられる。なお図４、図５にお
いてＰ1 は高輝度輝点、Ｐ2 は小輝度輝点を表わしてい
る。EXAMPLE The entire lamp cover 1 is an acrylic resin integrally molded product. 2 is an illuminated surface, and 3 is a body. The illumination surface 2 is composed of a light-scattering plate in which a large number of triangular pyramid prisms are regularly arranged on the surface, and is composed of a central circular portion A, an outer peripheral annular portion B, and an outermost peripheral annular portion C. Each of the sections B and C is composed of a fan-shaped portion S divided into six in the radial direction, and each fan-shaped portion is positioned so as not to form the same plane as the fan-shaped portions adjacent to each other. For example, in FIG. 1, the fan-shaped portions C-1, C-3, C-5 of the annular portion C are placed equidistantly on the same plane, that is, at the position closest to the point light source P, and C-2, C-
Each surface of 4 and C-6 is 3 to 6 mm farther from the above surface (see FIG. 2).
In the bottom). As a result, the adjacent fan-shaped plates have a step difference from each other. An outer wall 4 is connected to the body. Fan-shaped parts B-1, B-3, B- of the annular part B
5 is located on the same plane as C-2, C-4, etc., or at a position farther away, and B-2, B-4, B-6 form the same plane with the central circular portion A, and are more than the above planes. It is arranged so as to be located further away by taking steps. 5 is an inner wall, and 6 is a partition wall, which is a substantially vertical wall like the outer wall 4.
A vertical groove 7 is formed on at least one surface of the vertical wall. Reference numeral 8 is a mounting flange. When the light source P is a point light source as shown in FIG. 3 in the above embodiment, the bright spots are concentrated and appear in the area adjacent to the fan-shaped portion as shown in FIG. 4, and are brighter than those of the flat light scattering plate shown in FIG. In addition to increasing the number of bright spots, the illuminance also increases. Although the detailed reason for this is not clear, it is considered to be due to the reflection of the vertical wall in the adjacent portion and the difference between the step of each fan-shaped portion, that is, the distance from the point light source. 4 and 5, P 1 represents a high-luminance bright spot, and P 2 represents a low-luminance bright spot.
【０００７】[0007]
【効果】上記した如く本案ランプカバーを点光源ランプ
カバーとして使用すれば従来の平板状光散乱板に見られ
ないシャンデリアスポットを高輝度で現わすことができ
る。更に、平板状光散乱板による輝点は照光面に垂直な
方向から外れて見ると、スポットの輝度が急激に低下す
ると共にその輝点位置を変化するが、本案品は段差によ
る散乱光のため輝度の急低下がない等の効果もある。従
ってホール又は廊下などの天井灯として好適である。As described above, when the lamp cover of the present invention is used as a point light source lamp cover, a chandelier spot which cannot be seen in the conventional flat light scattering plate can be displayed with high brightness. Furthermore, when the bright spot due to the flat light-scattering plate deviates from the direction perpendicular to the illuminated surface, the brightness of the spot sharply decreases and the bright spot position changes, but this product is scattered light due to the step difference. There are also effects such as no sharp drop in brightness. Therefore, it is suitable as a ceiling light for halls or corridors.
【図１】本案品の平面図[Figure 1] Plan view of the product
【図２】同側面図FIG. 2 is a side view of the same.
【図３】図１のＸ−Ｘ断面図FIG. 3 is a sectional view taken along line XX of FIG.
【図４】本案品の輝点を示す平面図FIG. 4 is a plan view showing bright spots of the product of the present invention.
【図５】比較品の輝点を示す平面図FIG. 5 is a plan view showing bright spots of a comparative product.
２ 照光面 ４ 垂直壁 ５ 垂直壁 ６ 垂直壁 Ａ 中心円形部 Ｂ 環状部 Ｃ 環状部 Ｓ 扇形部 2 Illuminated surface 4 Vertical wall 5 Vertical wall 6 Vertical wall A Central circular part B Annular part C Annular part S Fan-shaped part
Claims (1)
の表面側に多数の三角錐体プリズムを規則的に配列した
光散乱板で構成されてなるランプカバーにおいて、前記
光散乱板が中心円形部を除いて少なくとも１つの同心環
状部として分割されると共に該環状部は半径方向に等分
に分割されて対称形状の偶数個の扇形部とされ、各扇形
部は隣接する扇形部と同一面を構成しないように高さ位
置を違えて配置されると共に各扇形部の周縁部は隣接す
る扇形部の夫々の周縁部に達する垂直壁を介して連接さ
れてなる高輝度多光点ランプカバー。1. A lamp cover having an illuminating surface facing a point light source, comprising a light-scattering plate in which a large number of triangular pyramidal prisms are regularly arranged on the surface side of a transparent synthetic resin plate, wherein the light-scattering plate is It is divided into at least one concentric annular portion excluding the central circular portion, and the annular portion is equally divided in the radial direction into an even number of fan-shaped portions having a symmetrical shape, and each fan-shaped portion is divided into adjacent fan-shaped portions. A high-intensity multi-spot lamp in which heights are arranged differently so that they do not form the same plane, and the peripheral edges of each fan-shaped portion are connected through vertical walls reaching the respective peripheral edges of adjacent fan-shaped portions. cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7466692U JPH0711368Y2 (en) | 1992-10-05 | 1992-10-05 | High brightness multi-light spot lamp cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7466692U JPH0711368Y2 (en) | 1992-10-05 | 1992-10-05 | High brightness multi-light spot lamp cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0633313U JPH0633313U (en) | 1994-04-28 |
| JPH0711368Y2 true JPH0711368Y2 (en) | 1995-03-15 |
Family
ID=13553792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7466692U Expired - Lifetime JPH0711368Y2 (en) | 1992-10-05 | 1992-10-05 | High brightness multi-light spot lamp cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0711368Y2 (en) |
-
1992
- 1992-10-05 JP JP7466692U patent/JPH0711368Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0633313U (en) | 1994-04-28 |
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