JPS6344315U - - Google Patents
Info
- Publication number
- JPS6344315U JPS6344315U JP13923986U JP13923986U JPS6344315U JP S6344315 U JPS6344315 U JP S6344315U JP 13923986 U JP13923986 U JP 13923986U JP 13923986 U JP13923986 U JP 13923986U JP S6344315 U JPS6344315 U JP S6344315U
- Authority
- JP
- Japan
- Prior art keywords
- truncated cone
- shape
- spherical
- surface side
- tip
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Elements Other Than Lenses (AREA)
Description
第１図ａ，ｂは本考案の実施例のプリズムパネ
ルの要部側面図及び要部底面図、第２図は同上の
照明器具全体の断面図、第３図は同上の斜視図、
第４図は同上の円錐の頂角と直下光度との関係を
示す特性図、第５図は同上の球面の半径と仰角２
０°方向の光度及び直下光度との関係を示す特性
図である。
１はプリズムパネル、３はランプ、４はプリズ
ム体、４ａは円錐台、４ｂは球面部である。
1A and 1B are a side view and a bottom view of a main part of a prism panel according to an embodiment of the present invention, FIG. 2 is a sectional view of the entire lighting fixture, and FIG.
Figure 4 is a characteristic diagram showing the relationship between the apex angle of the cone and the nadir luminosity, and Figure 5 is the radius and elevation angle 2 of the spherical surface.
It is a characteristic diagram showing the relationship between the luminous intensity in the 0° direction and the direct luminous intensity. 1 is a prism panel, 3 is a lamp, 4 is a prism body, 4a is a truncated cone, and 4b is a spherical portion.
Claims (1)
に透光し、回転体形状の単体のプリズム体が多数
配列されている照明用プリズムパネルにおいて、
上記単体のプリズム体の形状を、光の入射面側は
平面とし、光の出射面側を断面を円錐もしくは基
部の円錐と先端の球面との組み合わせ形状とし、
円錐状とした円錐台の頂角を４５°〜５５°とし
、円錐台の先端に球面が形成される場合にその球
面状とした球面部の半径を、円錐台底面の直径の
１／５以下に設定して成ることを特徴とする照明
用プリズムパネル。 In a lighting prism panel that transmits light from a lamp or reflector inside the device to the outside of the device, and has a large number of single prism bodies arranged in the shape of a rotating body,
The shape of the single prism body is such that the light incident surface side is flat, and the light exit surface side has a conical cross section or a combination shape of a conical base and a spherical tip,
When the apex angle of the truncated cone is 45° to 55° and a spherical surface is formed at the tip of the truncated cone, the radius of the spherical part is 1/5 or less of the diameter of the base of the truncated cone. A lighting prism panel characterized by being set to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13923986U JPS6344315U (en) | 1986-09-10 | 1986-09-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13923986U JPS6344315U (en) | 1986-09-10 | 1986-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6344315U true JPS6344315U (en) | 1988-03-25 |
Family
ID=31044953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13923986U Pending JPS6344315U (en) | 1986-09-10 | 1986-09-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6344315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002148417A (en) * | 2000-11-08 | 2002-05-22 | Dainippon Printing Co Ltd | Optical sheet, method for manufacturing the same, surface light source device and display device |
-
1986
- 1986-09-10 JP JP13923986U patent/JPS6344315U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002148417A (en) * | 2000-11-08 | 2002-05-22 | Dainippon Printing Co Ltd | Optical sheet, method for manufacturing the same, surface light source device and display device |
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