JPS6282508U - - Google Patents
Info
- Publication number
- JPS6282508U JPS6282508U JP1985174654U JP17465485U JPS6282508U JP S6282508 U JPS6282508 U JP S6282508U JP 1985174654 U JP1985174654 U JP 1985174654U JP 17465485 U JP17465485 U JP 17465485U JP S6282508 U JPS6282508 U JP S6282508U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- maximum diameter
- parabola
- axis
- equal
- 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
Description
第１図および第２図はこの考案の一実施例によ
る投光器の断面図および下面図、第３図および第
４図は従来の投光器の断面図および下面図である
。
３…光源、３１…中央部、３３…発光部、８…
反射板、８１…反射面、８２…裏面、８３…第一
の放物面部、８４…第二の放物面部、８５…円部
、９…光源位置矯正板、Ｏ―Ｘ…放物線の軸、Ｏ
―Ｏ…光源の軸。なお、図中同一符号は同一また
は相当部分をす。
1 and 2 are a sectional view and a bottom view of a projector according to an embodiment of the invention, and FIGS. 3 and 4 are a sectional view and a bottom view of a conventional projector. 3...Light source, 31...Central part, 33...Light emitting part, 8...
Reflection plate, 81...Reflection surface, 82...Back surface, 83...First paraboloid part, 84...Second paraboloid part, 85...Circular part, 9...Light source position correction plate, O-X...Axis of parabola, O
-O...Axis of the light source. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
光源を用い、断面形状が前記光源の軸とその焦点
とが等しい放物線を主体として形成された樋状の
反射板を備えてなる投光器において、前記反射板
を、熱の良導体で形成するとともにその反射面の
一部を放物線の軸に対して左右各々９０°未満の
角度範囲で前記光源の最大径部に沿う形状とし、
かつ該反射面を金属表面に、裏面を耐熱非金属塗
料による塗装面に形成するとともに、前記反射面
の一部に前記光源の最大径部が略接触した状態を
維持させる手段を設けたことを特徴とする投光器
。 It uses a single-cap light source having an outer tube whose maximum diameter is a cylinder of equal diameter, and is equipped with a gutter-like reflector whose cross-sectional shape is mainly a parabola whose focal point is equal to the axis of the light source. In the projector, the reflecting plate is formed of a good thermal conductor, and a part of the reflecting surface is shaped along the maximum diameter part of the light source within an angular range of less than 90° on each side with respect to the axis of the parabola,
The reflective surface is formed on a metal surface, the back surface is formed on a surface coated with a heat-resistant non-metallic paint, and means is provided for maintaining a state in which the maximum diameter portion of the light source is substantially in contact with a part of the reflective surface. Features a floodlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985174654U JPS6282508U (en) | 1985-11-13 | 1985-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985174654U JPS6282508U (en) | 1985-11-13 | 1985-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6282508U true JPS6282508U (en) | 1987-05-26 |
Family
ID=31113241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985174654U Pending JPS6282508U (en) | 1985-11-13 | 1985-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6282508U (en) |
-
1985
- 1985-11-13 JP JP1985174654U patent/JPS6282508U/ja active Pending