JPS63109498U - - Google Patents
Info
- Publication number
- JPS63109498U JPS63109498U JP70287U JP70287U JPS63109498U JP S63109498 U JPS63109498 U JP S63109498U JP 70287 U JP70287 U JP 70287U JP 70287 U JP70287 U JP 70287U JP S63109498 U JPS63109498 U JP S63109498U
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- tube end
- heating
- filament
- lighting device
- 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
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Description
第１図は本考案の一実施例を示す構成図、第２
図は同上を基本とした具体的な実施例を示す構成
図、第３図は本考案の実施例を組み込んだ複写機
の概略構成図でａは正面図、ｂは斜視図、第４図
は従来の放電灯点灯装置による照射面の照度分布
を示す図、第５図は従来例を示す構成図である。
１……放電灯、２……フイラメント、３……管
端部、４……中央部、５……照射面、１１……加
熱手段、１２……検出手段、１３……制御手段。
Fig. 1 is a configuration diagram showing one embodiment of the present invention;
The figure is a block diagram showing a specific embodiment based on the above, FIG. 3 is a schematic block diagram of a copying machine incorporating an embodiment of the present invention, in which a is a front view, b is a perspective view, and FIG. FIG. 5 is a diagram showing an illuminance distribution on an irradiation surface by a conventional discharge lamp lighting device, and is a configuration diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1...Discharge lamp, 2...Filament, 3...Tube end, 4...Central part, 5...Irradiation surface, 11...Heating means, 12...Detection means, 13...Control means.
Claims (1)
て成る放電灯点灯装置において、前記フイラメン
トを加熱する加熱手段と、前記放電灯の管端部の
温度を検出する検出手段と、該検出手段の信号を
受けて加熱手段を制御する制御手段とを具備し、
前記放電灯の管端部と対面する照射面の照度を常
に所定値以上とするように、制御手段にて制御し
たことを特徴とする放電灯点灯装置。 A discharge lamp lighting device comprising a discharge lamp having a filament at a tube end, comprising a heating means for heating the filament, a detection means for detecting the temperature of the tube end of the discharge lamp, and a signal from the detection means. control means for controlling the heating means in response to the
A discharge lamp lighting device characterized in that the illuminance of the irradiation surface facing the tube end of the discharge lamp is always controlled to be equal to or higher than a predetermined value by a control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP70287U JPS63109498U (en) | 1987-01-07 | 1987-01-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP70287U JPS63109498U (en) | 1987-01-07 | 1987-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63109498U true JPS63109498U (en) | 1988-07-14 |
Family
ID=30777916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP70287U Pending JPS63109498U (en) | 1987-01-07 | 1987-01-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63109498U (en) |
-
1987
- 1987-01-07 JP JP70287U patent/JPS63109498U/ja active Pending