JPH0315499U - - Google Patents
Info
- Publication number
- JPH0315499U JPH0315499U JP7692689U JP7692689U JPH0315499U JP H0315499 U JPH0315499 U JP H0315499U JP 7692689 U JP7692689 U JP 7692689U JP 7692689 U JP7692689 U JP 7692689U JP H0315499 U JPH0315499 U JP H0315499U
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- lighting circuit
- output
- lighting
- response
- 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
- 238000001816 cooling Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Description
第１図はこの考案の第１の実施例の調光型照明
器具の構成を示す回路図、第２図は実施例におけ
るランプ管壁温度Ｔとランプ効率ηの関係を示す
特性図、第３図は調光型照明器具の排気扉付近の
構造を示す斜視図、第４図はこの考案の第２の実
施例の調光型照明器具の構成を示す回路図、第５
図は放電ランプを冷却する照明器具の従来例を示
す概略図、第６図は第５図の照明器具におけるラ
ンプ管壁温度Ｔとランプ効率ηの関係を示す特性
図、第７図は放電ランプを冷却する照明器具の他
の従来例を示す概略斜視図、第８図は同じく概略
断面図、第９図は第７図および第８図の照明器具
におけるランプ管壁温度Ｔとランプ効率ηの関係
を示す特性図である。
１……放電ランプ、２……放電灯点灯回路部、
３……ランプ冷却手段。
Fig. 1 is a circuit diagram showing the configuration of a dimmable lighting device according to the first embodiment of this invention, Fig. 2 is a characteristic diagram showing the relationship between lamp tube wall temperature T and lamp efficiency η in the embodiment, and Fig. 3 The figure is a perspective view showing the structure near the exhaust door of the dimmable lighting fixture, FIG. 4 is a circuit diagram showing the configuration of the dimmable lighting fixture according to the second embodiment of this invention, and
The figure is a schematic diagram showing a conventional example of a lighting fixture that cools a discharge lamp, Figure 6 is a characteristic diagram showing the relationship between lamp tube wall temperature T and lamp efficiency η in the lighting fixture of Figure 5, and Figure 7 is a discharge lamp FIG. 8 is a schematic cross-sectional view of another conventional example of a lighting fixture that cools the lamp, and FIG. 9 is a diagram showing the lamp tube wall temperature T and lamp efficiency η in the lighting fixtures shown in FIGS. It is a characteristic diagram showing a relationship. 1...Discharge lamp, 2...Discharge lamp lighting circuit section,
3...Lamp cooling means.
Claims (1)
て増減させる放電灯点灯回路部と、前記調光信号
に応答して冷却能力を変化させるランプ冷却手段
とを備えた調光型照明器具。 (2) 器具本体が密閉型である請求項(1)記載の調
光型照明器具。 (3) 前記放電灯点灯回路部は定格出力より高い
出力で放電ランプを点灯させる高出力型放電灯点
灯回路部である請求項(1)記載の調光型照明器具
。[Scope of Claim for Utility Model Registration] (1) A discharge lamp lighting circuit unit that increases or decreases the power supplied to the discharge lamp in response to a dimming signal, and a lamp cooling means that changes cooling capacity in response to the dimming signal. Dimmable lighting equipment. (2) The dimmable lighting fixture according to claim (1), wherein the fixture body is of a closed type. (3) The dimming type lighting fixture according to claim (1), wherein the discharge lamp lighting circuit section is a high-output discharge lamp lighting circuit section that lights the discharge lamp at an output higher than the rated output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7692689U JPH0315499U (en) | 1989-06-27 | 1989-06-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7692689U JPH0315499U (en) | 1989-06-27 | 1989-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0315499U true JPH0315499U (en) | 1991-02-15 |
Family
ID=31618835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7692689U Pending JPH0315499U (en) | 1989-06-27 | 1989-06-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0315499U (en) |
-
1989
- 1989-06-27 JP JP7692689U patent/JPH0315499U/ja active Pending
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