JP2710216B2 - Lighting equipment - Google Patents
Lighting equipmentInfo
- Publication number
- JP2710216B2 JP2710216B2 JP24792494A JP24792494A JP2710216B2 JP 2710216 B2 JP2710216 B2 JP 2710216B2 JP 24792494 A JP24792494 A JP 24792494A JP 24792494 A JP24792494 A JP 24792494A JP 2710216 B2 JP2710216 B2 JP 2710216B2
- Authority
- JP
- Japan
- Prior art keywords
- lamp
- lighting device
- ventilation hole
- windshield
- sectional
- 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.)
- Expired - Fee Related
Links
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は照明装置に関し、特に冷
却を要する照明装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device, and more particularly to a lighting device requiring cooling.
【０００２】[0002]
【従来の技術】従来、メタルハライドランプを用いた照
明装置においては、水平点灯すると、図９に示すように
ランプ１中のアーク１３が上方へ湾曲し、ランプ上部が
下部に対して温度が高くなるので、一定方向にのみ配置
されたランプに対して、該ランプ上部に沿って流れる空
気流の流速が、ランプ下部に沿って流れる空気流の流速
より大になるようにするために、ランプに対し上方に位
置固定の通風孔を反射鏡に設け、ランプ上部を積極的に
冷却することにより、ランプ上下間の温度差をなくし、
ランプの劣化、及び寿命の低下防止を行っていた（特開
平４−３２１５２号公報）。2. Description of the Related Art Conventionally, in a lighting device using a metal halide lamp, when horizontally lit, an arc 13 in a lamp 1 is bent upward as shown in FIG. Therefore, for a lamp arranged only in a certain direction, in order for the flow velocity of the air flow flowing along the upper part of the lamp to be greater than the flow velocity of the air flow flowing along the lower part of the lamp, A fixed ventilation hole is provided in the upper part of the reflector, and the upper part of the lamp is actively cooled to eliminate the temperature difference between the upper and lower parts of the lamp.
The lamp is prevented from deteriorating and its life is shortened (Japanese Patent Laid-Open No. 4-32152).
【０００３】[0003]
【発明が解決しようとする課題】しかし、上述した従来
の照明装置においては、ランプが任意の方向に配置され
た場合、例えば逆さに配置された場合、ランプ下部にし
か空気流が流れず、ランプ上部がランプ下部に対し更に
高温になり、演色性が悪化してしまい、またランプ上部
が膨張し、劣化、及び寿命の低下が起こるという問題点
があった。However, in the above-described conventional lighting device, when the lamp is arranged in an arbitrary direction, for example, when the lamp is arranged upside down, the air flow only flows under the lamp, and There has been a problem that the temperature of the upper portion becomes higher than that of the lower portion of the lamp, so that the color rendering property is deteriorated, and the upper portion of the lamp expands, deteriorates, and the life is shortened.
【０００４】本発明の目的は、従来の照明装置における
上記の問題を解決するもので、ランプの設置方向に関わ
らず、ランプ上部に沿って流れる空気流の流速が、ラン
プ下部に沿って流れる空気流の流速より、常に大になる
ようにするために、反射鏡に通風孔を設け、該通風孔の
開口部が常にランプに対し上方に存在するように構成
し、ランプ上部を積極的に冷却し、ランプの変形を防止
し、演色性の優れた長寿命の照明装置を提供することで
ある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem in the conventional lighting device, and the flow velocity of the air flowing along the upper part of the lamp is reduced regardless of the installation direction of the lamp. A ventilation hole is provided in the reflecting mirror so that the flow velocity is always higher than the flow velocity, and the opening of the ventilation hole is always located above the lamp. Another object of the present invention is to provide a long-life lighting device that prevents deformation of a lamp and has excellent color rendering properties.
【０００５】[0005]
【課題を解決するための手段】本発明による照明装置
は、ランプと、該ランプを冷却するための冷却ファン
と、該ランプからの光線を反射し照射する反射鏡と、前
記反射鏡に設けられた通風孔と、重力方向に滑り即ち重
力の働きを受け該通風孔の下側部分をふさぐ遮風体とを
設けたことを特徴とする。An illumination device according to the present invention is provided with a lamp, a cooling fan for cooling the lamp, a reflecting mirror for reflecting and irradiating a light beam from the lamp, and provided on the reflecting mirror. Slips in the direction of gravity.
Characterized by providing a shielding closes the lower portion of the vent Kazeana subjected to the action of force Futei.
【０００６】[0006]
【実施例】本発明について、第一の実施例について図１
〜図５を参照して詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a first embodiment of the present invention.
This will be described in detail with reference to FIGS.
【０００７】図１は本発明の第一の実施例を示す断面
図、図２は通風孔部拡大図、図３は図１のＸ−Ｘ断面
図、図４は図１のＹ−Ｙ断面図、図５は図１の実施例を
鉛直方向に設置した場合である。ランプ１は口金２に取
り付けられ、口金２はスペーサー３により反射鏡４に取
り付けられている。遮風体５が取り付けられたベアリン
グ６は、取付片７により反射鏡４に固定されている。冷
却ファン８からの風は送風管９で誘導され、通風孔１０
の方向へ流れていく。鉛直方向以外の任意の方向に設置
された照明装置において、ベアリング６に取り付けられ
た遮風体５は重力方向に滑り、スペーサー３中の下部の
通風孔１０を遮風する。開放状態になっている上部の通
風孔１０を通った風は、ランプ１上部を積極的に冷却す
る。FIG. 1 is a sectional view showing a first embodiment of the present invention, FIG. 2 is an enlarged view of a ventilation hole portion, FIG. 3 is a sectional view taken along line XX of FIG. 1, and FIG. FIGS. 5 and 5 show a case where the embodiment of FIG. 1 is installed vertically. The lamp 1 is attached to a base 2, and the base 2 is attached to a reflecting mirror 4 by a spacer 3. The bearing 6 to which the wind shield 5 is mounted is fixed to the reflecting mirror 4 by a mounting piece 7. The air from the cooling fan 8 is guided by a blower pipe 9,
Flowing in the direction of. In the lighting device installed in an arbitrary direction other than the vertical direction, the wind shield 5 attached to the bearing 6 slides in the direction of gravity and blocks the lower ventilation hole 10 in the spacer 3. The wind that has passed through the upper ventilation hole 10 in the open state actively cools the upper part of the lamp 1.
【０００８】図４に示すようにベアリング６に取り付け
られた遮風体５は重り１１を有しており、重力方向に滑
りやすくなっている。As shown in FIG. 4, the wind shield 5 attached to the bearing 6 has a weight 11 so that it can slide easily in the direction of gravity.
【０００９】図５に示すように鉛直方向に設置された照
明装置においては、遮風体５が取り付けられたベアリン
グ６を取り外すことにより、スペーサー３中の通風孔１
０は全部開放状態になり、ランプ１は均等に冷却され
る。As shown in FIG. 5, in a lighting device installed in a vertical direction, a bearing 6 to which a wind shield 5 is attached is removed, so that a ventilation hole 1 in a spacer 3 is removed.
0 is completely open, and the lamp 1 is cooled evenly.
【００１０】次に、第二の実施例について図６〜図８を
参照して説明する。図６は本発明の第二の実施例を示す
断面図、図７は図６のＺ−Ｚ断面図、図８は図６の実施
例を鉛直方向に設置した場合である。ランプ１は口金２
を通して反射鏡４に取り付けられており、反射鏡４には
通風孔１０が開けられている。遮風体５が支持片１２に
より口金２に支持されている。冷却ファン８からの風は
送風管９で誘導され、通風孔１０の方向へ流れていく。
鉛直方向以外の任意の方向に設置された照明装置におい
て、重り１１を有した遮風体５は重力方向に滑り、反射
鏡４上の下部の通風孔１０を遮風する。開放状態になっ
た上部の通風孔１０を通った風は、ランプ１上部を積極
的に冷却する。Next, a second embodiment will be described with reference to FIGS. FIG. 6 is a sectional view showing a second embodiment of the present invention, FIG. 7 is a sectional view taken along the line ZZ of FIG. 6, and FIG. 8 is a case where the embodiment of FIG. Lamp 1 is base 2
The reflector 4 has a ventilation hole 10 formed therein. The wind shield 5 is supported on the base 2 by the support pieces 12. The wind from the cooling fan 8 is guided by the blower pipe 9 and flows toward the ventilation hole 10.
In a lighting device installed in an arbitrary direction other than the vertical direction, the wind shield 5 having the weight 11 slides in the direction of gravity and blocks the lower ventilation hole 10 on the reflector 4. The air that has passed through the upper ventilation hole 10 that has been opened actively cools the upper part of the lamp 1.
【００１１】図８に示すように鉛直方向に設置された照
明装置においては、遮風体５を取り外すことにより、反
射鏡４上の通風孔１０は全部開放状態になり、ランプ１
は均等に冷却される。In a lighting device installed in a vertical direction as shown in FIG. 8, the ventilation holes 10 on the reflecting mirror 4 are completely opened by removing the wind shield 5, and the lamp 1
Is cooled evenly.
【００１２】[0012]
【発明の効果】上記発明によれば、任意の方向に設置し
点灯されるランプの下部の温度を下げることなく、上部
の温度を大幅に下げ、ランプの上部と下部の温度差を少
なくすることを可能とし、従来の技術を用いた照明装置
を逆さに使用した場合、約８００時間で全光束の５０％
が減少したが、本発明による照明装置においては、全光
束の５０％が減少するまで１０００時間維持するという
ことが確認された。According to the present invention, the temperature of the upper part of the lamp can be greatly reduced without lowering the temperature of the lower part of the lamp which is installed in any direction and turned on, and the temperature difference between the upper part and the lower part of the lamp is reduced. And when a conventional lighting device is used upside down, 50% of the total luminous flux in about 800 hours
However, in the lighting device according to the present invention, it was confirmed that the lighting device was maintained for 1000 hours until 50% of the total luminous flux was reduced.
【図１】本発明である照明装置の第一の実施例を示す断
面図。FIG. 1 is a sectional view showing a first embodiment of a lighting device according to the present invention.
【図２】図１の通風孔部拡大図。FIG. 2 is an enlarged view of a ventilation hole in FIG. 1;
【図３】図１のＸ−Ｘに沿った断面図。FIG. 3 is a sectional view taken along line XX of FIG. 1;
【図４】図１のＹ−Ｙに沿った断面図。FIG. 4 is a sectional view taken along the line YY of FIG. 1;
【図５】第一の実施例において鉛直方向設置時の装置の
状態を示す断面図。FIG. 5 is a cross-sectional view showing the state of the device when installed vertically in the first embodiment.
【図６】本発明である照明装置の第二の実施例を示す断
面図。FIG. 6 is a sectional view showing a second embodiment of the lighting device according to the present invention.
【図７】図６のＺ−Ｚに沿った断面図。FIG. 7 is a sectional view taken along the line ZZ in FIG. 6;
【図８】第二の実施例において鉛直方向設置時の装置の
状態を示す断面図。FIG. 8 is a cross-sectional view showing a state of the device when installed vertically in the second embodiment.
【図９】従来の照明装置における水平点灯時のランプ中
のアークの状態を示す断面図。FIG. 9 is a cross-sectional view showing a state of an arc in a lamp at the time of horizontal lighting in a conventional lighting device.
１ ランプ ２ 口金 ３ スペーサー ４ 反射鏡 ５ 遮風体 ６ ベアリング ７ 取付片 ８ 冷却ファン ９ 送風管 １０ 通風孔 １１ 重り １２ 支持片 １３ アーク DESCRIPTION OF SYMBOLS 1 Lamp 2 Base 3 Spacer 4 Reflector 5 Windshield 6 Bearing 7 Mounting piece 8 Cooling fan 9 Ventilation tube 10 Ventilation hole 11 Weight 12 Supporting piece 13 Arc
Claims (3)
却ファンと、該ランプからの光線を反射し照射する反射
鏡と、前記反射鏡に設けられ前記冷却ファンからの送風
を通す通風孔と、重力の働きを受けて回転することによ
り該通風孔の下側部分をふさぐ遮風体とを設けたことを
特徴とする照明装置。1. A lamp, a cooling fan for cooling the lamp, a reflecting mirror for reflecting and irradiating a light beam from the lamp, and a ventilation hole provided in the reflecting mirror for passing air from the cooling fan. By rotating under the action of gravity
A lighting device, comprising: a windshield that blocks a lower portion of the ventilation hole .
る構造を持ち、前記遮風体を回転自在にするベアリング
と、前記遮風体に取り付けられた重りとを具備する請求
項１の照明装置。2. The windshield blocks wind at a predetermined angle.
The lighting device according to claim 1, further comprising: a bearing having a structure that allows the windshield to rotate, and a weight attached to the windshield.
設けられ限られた領域について遮風するとともに、前記
遮風体に取り付けられた重りを具備する請求項１の照明
装置。Wherein with said shield Futei to wind shielding for a limited area is provided rotatably on the back of the reflector, the illumination apparatus of claim 1, further comprising a weight attached to said shield Futei.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24792494A JP2710216B2 (en) | 1994-10-13 | 1994-10-13 | Lighting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24792494A JP2710216B2 (en) | 1994-10-13 | 1994-10-13 | Lighting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08111209A JPH08111209A (en) | 1996-04-30 |
| JP2710216B2 true JP2710216B2 (en) | 1998-02-10 |
Family
ID=17170577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24792494A Expired - Fee Related JP2710216B2 (en) | 1994-10-13 | 1994-10-13 | Lighting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2710216B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2267674C (en) * | 1999-03-31 | 2010-03-30 | Imax Corporation | Method for cooling an arc lamp |
| KR100438279B1 (en) * | 2001-12-28 | 2004-07-02 | 엘지전자 주식회사 | Cooling system for display device |
| US9534848B2 (en) * | 2012-08-28 | 2017-01-03 | Kla-Tencor Corporation | Method and apparatus to reduce thermal stress by regulation and control of lamp operating temperatures |
-
1994
- 1994-10-13 JP JP24792494A patent/JP2710216B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08111209A (en) | 1996-04-30 |
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