JPS61196231U - - Google Patents
Info
- Publication number
- JPS61196231U JPS61196231U JP8042785U JP8042785U JPS61196231U JP S61196231 U JPS61196231 U JP S61196231U JP 8042785 U JP8042785 U JP 8042785U JP 8042785 U JP8042785 U JP 8042785U JP S61196231 U JPS61196231 U JP S61196231U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- parabola
- lighting device
- curved surface
- reflecting mirror
- 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
- 238000002834 transmittance Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 1
Landscapes
- Optical Elements Other Than Lenses (AREA)
Description
第１図は本考案の一実施例の断面図、第２図は
第１図に示す被写体４におけるＡ―Ｂ間の照度分
布を示すグラフである。
１…光源、２…反射鏡、３…赤外線透過フイル
タ、４…被写体、５…照明装置、６…反射光ビー
ム、１１…反射光による照度分布、１２…直接光
による照度分布、１３…赤外線フイルタの透過特
性、１４…得られるべき照度分布。
FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a graph showing the illuminance distribution between A and B in the subject 4 shown in FIG. 1... Light source, 2... Reflector, 3... Infrared transmission filter, 4... Subject, 5... Illumination device, 6... Reflected light beam, 11... Illuminance distribution due to reflected light, 12... Illuminance distribution due to direct light, 13... Infrared filter transmission characteristics, 14... illuminance distribution to be obtained.
Claims (1)
部において断面が放物線である曲面となつている
反射鏡と、前記光源の前側に設けられ光の透過率
が変化しているフイルタとを含むことを特徴とす
る照明装置。 A light source, a reflecting mirror provided on the rear side of the light source and having a curved surface whose cross section is a parabola at least in part, and a filter provided on the front side of the light source and having a varying light transmittance. A lighting device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8042785U JPS61196231U (en) | 1985-05-29 | 1985-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8042785U JPS61196231U (en) | 1985-05-29 | 1985-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61196231U true JPS61196231U (en) | 1986-12-06 |
Family
ID=30626264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8042785U Pending JPS61196231U (en) | 1985-05-29 | 1985-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61196231U (en) |
-
1985
- 1985-05-29 JP JP8042785U patent/JPS61196231U/ja active Pending