【考案の詳細な説明】
本考案は照明器具に関するもので、その目的は
装飾性の高い照明器具を提供することにある。[Detailed Description of the Invention] The present invention relates to a lighting fixture, and its purpose is to provide a highly decorative lighting fixture.
第１図乃至第５図は本考案の実施例を示すもの
で、ランプ１の周を囲つて透明プラスチツク板の
透光体２を設けたものである。透光体２は微視的
に見れば、第２図に示す如くその表面には偏平な
円筒状の凸部３が規則的に配列されており、この
凸部３は径が約2.5〜5μ、高さが約1.5μで隣接凸
部との中心間距離が約５〜10μである。配列は第
３図にそれぞれ示す如く正方形配置、三角形配置
のいずれでもよい。然してかかる透光体２を介し
てランプ１を見れば凸部３による回折現象によ
り、ランプ１の周に複数次の虚像４ａ，４ｂ…が
見え、各虚像は又分光して虹模様を呈し極めて高
い美感を生じさせる。この虚像４ａ，４ｂ…の配
置は第５図にそれぞれ示す如く凸部３の配置と同
じ正方形配置又は三角形配置となり、ランプ１か
ら順次１次、２次……の虚像が発生する。 1 to 5 show an embodiment of the present invention, in which a lamp 1 is surrounded by a transparent body 2 made of a transparent plastic plate. When viewed microscopically, the transparent body 2 has flat cylindrical convex portions 3 regularly arranged on its surface as shown in FIG. 2, and the convex portions 3 have a diameter of about 2.5 to 5 μm. , the height is about 1.5μ, and the center-to-center distance between adjacent protrusions is about 5 to 10μ. The arrangement may be either a square arrangement or a triangular arrangement as shown in FIG. 3, respectively. However, when looking at the lamp 1 through the light-transmitting body 2, a plurality of virtual images 4a, 4b, etc. can be seen around the lamp 1 due to the diffraction phenomenon caused by the convex portion 3, and each virtual image is also split into spectra, exhibiting a rainbow pattern, which is extremely Creates a high sense of beauty. The virtual images 4a, 4b, . . . are arranged in the same square or triangular arrangement as the convex portion 3, as shown in FIG. 5, and primary, secondary, . . . virtual images are sequentially generated from the lamp 1.
次に上記の透光体２の内面に約300〜500Åの金
属膜を蒸着しハーフミラーを形成すれば、ランプ
１が消灯状態にあるときも他の光源からの光を反
射し同様に虚像４ａ，４ｂ…を発生する。これに
よりランプ１と共に他の光源についても虚像を生
じより高い美観を生じる。又透光体２はその表面
に微小な凸部３を形成しており、ランプ１の消灯
時にはあたかもすりガラスの如く曇つて見え古ぼ
けた感を与えるが、上記のハーフミラーを形成し
たものでは、外光を反射しかかる古ぼけた感を与
えることがない。特に屋外に用いた場合には昼間
は太陽光を反射し美麗である。 Next, if a metal film of approximately 300 to 500 Å is deposited on the inner surface of the transparent body 2 to form a half mirror, light from other light sources will be reflected even when the lamp 1 is off, and the virtual image 4a will be reflected in the same way. , 4b... are generated. This creates a virtual image for other light sources as well as the lamp 1, resulting in a more beautiful appearance. In addition, the transparent body 2 has minute protrusions 3 formed on its surface, and when the lamp 1 is turned off, it looks like frosted glass and gives a worn-out look. It does not reflect light and give an old feeling. Especially when used outdoors, it reflects sunlight and looks beautiful during the day.
次に第６図は本考案の他の実施例を示し、ラン
プ１の周に多面体の飾体であるいわゆるヨーラク
５を吊下したもので、ヨーラク５の表面には前述
の透光体２と同様の凸部３が形成されている。又
ヨーラク５は第７図に示す如く角柱でもよく、凸
部３はその表面の全面又は一面に設けてもよい。 Next, FIG. 6 shows another embodiment of the present invention, in which a so-called Yorak 5, which is a polyhedral decoration, is suspended around the lamp 1, and the above-mentioned transparent body 2 is attached to the surface of the Yorak 5. A similar convex portion 3 is formed. Further, the yoraku 5 may be a square column as shown in FIG. 7, and the convex portion 3 may be provided on the entire surface or one surface thereof.
ところで凸部３の形状は第８図ａに示す如く正
規な円筒である程よく同図ｂの如く椀状に形状が
純ると認識し得る虚像の発生次数が１〜３次の様
に少なくなつてしまうので、少なくとも平坦な頂
部を有するものが望ましい。 By the way, if the shape of the convex portion 3 is a regular cylinder as shown in FIG. 8a, the more pure the shape is in the bowl shape as shown in FIG. Therefore, it is desirable to have at least a flat top.
本考案は以上の如く、透光プラスチツクの表面
に、径が2.5〜5μの微小な凸部３を、５〜10μのピ
ツチで一定配置して回折格子を形成した透光体２
を、ランプ１の周に配設したので、透光体を介し
てランプを見た場合、ランプ（実像）はもちろん
のこと、凸部による複数次の虚像（回折像）が周
囲に見え、優れた美観を呈することができるもの
である。 As described above, the present invention is based on a transparent body 2 in which minute convex portions 3 with a diameter of 2.5 to 5μ are regularly arranged at a pitch of 5 to 10μ on the surface of a transparent plastic to form a diffraction grating.
are arranged around the lamp 1, so when looking at the lamp through the light-transmitting body, not only the lamp (real image) but also multiple-order virtual images (diffraction images) due to the convex parts can be seen around the lamp, making it an excellent image. It is possible to present a beautiful appearance.
【図面の簡単な説明】[Brief explanation of the drawing]
第１図乃至第５図は本考案の実施例を示し、第
１図は全体斜視図、第２図は透光体の拡大斜視
図、第３図は同上の平面図、第４図は虚像の説明
図、第５図も同上の平面的説明図である。第６図
は本考案の他の実施例を示す斜視図で、第７図は
そのヨーラクの他の実施例の斜視図である。第８
図は凸部の断面図である。
１……ランプ、２……透光体、３……凸部、４
……虚像、５……。
1 to 5 show an embodiment of the present invention, where FIG. 1 is an overall perspective view, FIG. 2 is an enlarged perspective view of a transparent body, FIG. 3 is a plan view of the same, and FIG. 4 is a virtual image. The explanatory diagram of FIG. 5 is also a planar explanatory diagram of the same. FIG. 6 is a perspective view showing another embodiment of the present invention, and FIG. 7 is a perspective view of another embodiment of the rack. 8th
The figure is a sectional view of the convex portion. 1...Lamp, 2...Translucent body, 3...Protrusion, 4
...Virtual image, 5...