JPS61180449U - - Google Patents
Info
- Publication number
- JPS61180449U JPS61180449U JP6566285U JP6566285U JPS61180449U JP S61180449 U JPS61180449 U JP S61180449U JP 6566285 U JP6566285 U JP 6566285U JP 6566285 U JP6566285 U JP 6566285U JP S61180449 U JPS61180449 U JP S61180449U
- Authority
- JP
- Japan
- Prior art keywords
- tip
- envelope
- spherical part
- forming
- tip 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
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
第１図は本考案の外囲器の一実施例の正断面図
、第２図は本考案の外囲器の横断面図、第３図は
従来例の電球体の頭頂部の正断面図である。
１は外囲器、２は球面部、３はチツプ管、Ｒ１
は球面部の接続部分の曲率半径、Ｒ２は外囲器の
曲率半径である。
Fig. 1 is a front cross-sectional view of an embodiment of the envelope of the present invention, Fig. 2 is a cross-sectional view of the envelope of the present invention, and Fig. 3 is a front cross-sectional view of the top of the bulb body of the conventional example. It is. 1 is an envelope, 2 is a spherical part, 3 is a tip tube, R 1
is the radius of curvature of the connection part of the spherical part, and R2 is the radius of curvature of the envelope.
Claims (1)
分を球面部とし、球面部よりチツプ管を外方に導
出し、チツプ管の外面とチツプ管に接続する球面
部の接続部分の接線との成す角度を鈍角に形成し
、外囲器の先端部外面に遮光塗膜を形成して成る
事を特徴とするランプヘツド構造。 The tip of the envelope is formed into an almost hemispherical shape, and this part is a spherical part, and the tip tube is guided outward from the spherical part, and the tangent line between the outer surface of the tip tube and the connecting part of the spherical part that connects to the tip tube. A lamp head structure characterized by forming an obtuse angle with the envelope and forming a light-shielding coating on the outer surface of the tip of the envelope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6566285U JPS61180449U (en) | 1985-04-30 | 1985-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6566285U JPS61180449U (en) | 1985-04-30 | 1985-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61180449U true JPS61180449U (en) | 1986-11-11 |
Family
ID=30597856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6566285U Pending JPS61180449U (en) | 1985-04-30 | 1985-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61180449U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5686451A (en) * | 1979-11-23 | 1981-07-14 | Sylvania Electric Prod | Lamp with opaque coating |
-
1985
- 1985-04-30 JP JP6566285U patent/JPS61180449U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5686451A (en) * | 1979-11-23 | 1981-07-14 | Sylvania Electric Prod | Lamp with opaque coating |