JPH01119110U

JPH01119110U -

Info

Publication number: JPH01119110U
Application number: JP1374988U
Authority: JP
Priority date: 1988-02-04
Filing date: 1988-02-04
Publication date: 1989-08-11

Description

[Brief explanation of the drawing]

第１図はこの考案の好適な実施例を示す一部断
面の正面図、第２図および第３図はそれぞれ他の
実施例を示す簡略正面図、第４図は光源部分の詳
細を示す断面図、第５図はパイプ部分を発光させ
た状態における各部分での輝度の測定手段を説明
するための図、第６図は第５図の手段により測定
されたパイプ各部分の輝度を示す図、第７図は配
向曲線を示す図、第８図は従来例を示す簡略正面
図である。１……パイプ、２……ミラー、５……光源、６
……反射鏡。 Fig. 1 is a partial cross-sectional front view showing a preferred embodiment of this invention, Figs. 2 and 3 are simplified front views showing other embodiments, and Fig. 4 is a cross-sectional view showing details of the light source section. Figure 5 is a diagram for explaining the means for measuring the brightness at each part when the pipe part is emitting light, and Figure 6 is a diagram showing the brightness of each part of the pipe measured by the means shown in Figure 5. , FIG. 7 is a diagram showing an orientation curve, and FIG. 8 is a simplified front view showing a conventional example. 1...Pipe, 2...Mirror, 5...Light source, 6
……Reflector.

Claims

[Claims for Utility Model Registration] 1. A cylindrical pipe made of an opaque transparent material with a mirror attached to the inner surface of one end, and a reflecting mirror that reflects light from a light source to an opening at the other end of the pipe. , A cylindrical lighting fixture configured so that the light from the light source is reflected by the mirror and the pipe itself emits light almost uniformly. 2. The cylindrical lighting device according to claim 1, characterized in that a reflective cylinder is provided on a part of the inner peripheral surface of the pipe on the opening side. 3. The cylindrical lighting device according to claim 1 or 2, wherein the light source and the reflecting mirror are housed in a support made of an opaque material, and the other end of the pipe is connected to the support. 4. The cylindrical lighting device according to claim 1, 2 or 3, characterized in that various filters are provided along the optical path from the light source to the mirror via the reflecting mirror.