JPS634345Y2 - - Google Patents
Info
- Publication number
- JPS634345Y2 JPS634345Y2 JP1982049501U JP4950182U JPS634345Y2 JP S634345 Y2 JPS634345 Y2 JP S634345Y2 JP 1982049501 U JP1982049501 U JP 1982049501U JP 4950182 U JP4950182 U JP 4950182U JP S634345 Y2 JPS634345 Y2 JP S634345Y2
- Authority
- JP
- Japan
- Prior art keywords
- reflector
- cooling
- light source
- cooling liquid
- lighting
- 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
Links
- 239000000110 cooling liquid Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 13
- 238000005286 illumination Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 description 17
- 238000003754 machining Methods 0.000 description 7
- 229910052736 halogen Inorganic materials 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は照明装置、詳しくは光源の発光に伴い
生じる熱を冷却することのできる照明装置に関す
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lighting device, and more particularly, to a lighting device that can cool the heat generated due to light emission from a light source.
照明装置の大半は、光源からの光を反射する反
射体を備えているが、反射体の反射率は100％と
言う訳にはいかず、またその構成は光を一定方向
に反射するように、光源を覆うように設けられて
いるため、反射体の内側に光源で発生する熱が伝
わり、この付近は周囲に比べて高温になり、光源
の寿命を短いものとしていた。そして光源あるい
は反射体が高温となるのを防ぐために、反射体の
一部にスリツトを設けたり、反射体の材質に変化
を持たせる等していたが、充分な効果を得ること
はできなかつた。特に工作機械等に備え付ける工
業用の照明装置は、使用時間も非常に長く、光源
付近が比較的高温となり易いため、改善が望まれ
ていた。
Most lighting devices are equipped with a reflector that reflects the light from the light source, but the reflectance of the reflector is not 100%, and the structure is designed to reflect the light in a certain direction. Because the reflector was installed to cover the light source, the heat generated by the light source was transmitted to the inside of the reflector, making the area around it hotter than the surrounding area, shortening the lifespan of the light source. In order to prevent the light source or the reflector from becoming too hot, attempts were made to create slits in some parts of the reflector or change the material of the reflector, but these attempts were not effective enough. . In particular, industrial lighting devices installed in machine tools, etc. are used for a very long time, and the vicinity of the light source tends to reach relatively high temperatures, so improvements have been desired.
従来技術として、特開昭48−86389号公報に記
載のものが知られているが、これは高圧水銀ラン
プ及び反射鏡を冷却液中に浸漬せしめ、冷却液を
流通介在せしめることによりランプ及び反射鏡の
冷却を行うものである。また、特開昭51−141489
号公報には、ほぼ同軸状に配設した大小２本の円
筒状体によつて形成される細長い液体ジヤケツト
に冷却液体を流通せしめ、ほぼ軸心に沿つて設け
られる長尺ランプの発する熱を冷却するように構
成したランプ組立体が記載されている。しかしな
がら、これらの従来技術では、工作機械に備え付
ける照明装置とした場合、加工部に照射される光
線に含まれる赤外線を大幅に減衰させることはで
きず、工具、被加工体の温度上昇の大幅な低下は
望めなかつた。 As a prior art, the one described in Japanese Patent Application Laid-Open No. 48-86389 is known, which involves immersing a high-pressure mercury lamp and a reflecting mirror in a cooling liquid, and allowing the cooling liquid to flow through the lamp and reflecting mirror. It cools the mirror. Also, JP-A-51-141489
The publication discloses that a cooling liquid is passed through a long and thin liquid jacket formed by two large and small cylindrical bodies arranged approximately coaxially, and heat generated by a long lamp installed approximately along the axis is absorbed. A lamp assembly configured for cooling is described. However, with these conventional technologies, when used as a lighting device installed in a machine tool, it is not possible to significantly attenuate the infrared rays contained in the light rays irradiated to the machining part, resulting in a significant temperature rise of the tool and workpiece. No decline could be expected.
本考案は前記従来の照明装置を改善するために
なされたものであつて、光源及び光源付近に発生
する熱を冷却液により吸収する新規な構成の照明
装置を提供することを目的とする。 The present invention has been made in order to improve the conventional lighting device, and an object of the present invention is to provide a lighting device with a novel configuration in which the light source and the heat generated in the vicinity of the light source are absorbed by a cooling liquid.
上述の目的を達成するため、本考案は、光源
と、この光源からの光を反射するための中空半球
状反射板と、小なくとも該反射板の裏面全体を所
定の間隔で囲繞する外殻とで形成される空間に冷
却液を流通介在させるための吸排出口を設けた照
明部と、内部に前記吸排出口に連結される一組の
管を有するアーム部と、前記照明部で加熱された
冷却液を冷却するための冷却装置を内装又は外装
し、前記冷却された冷却液を前記アーム部を介し
て前記照明部に圧送するためのポンプを内装せし
めた基台部とから成り、前記照明部と前記基台部
とを前記アーム部を介して連結したものである。
To achieve the above object, the present invention comprises a light source, a hollow hemispherical reflector for reflecting light from the light source, and an outer shell that surrounds at least the entire back surface of the reflector at predetermined intervals. a lighting section provided with a suction/exhaust port for circulating the coolant in a space formed by the above, an arm section having a set of tubes connected to the suction/discharge port inside, and an arm section that is heated by the lighting section. The illumination unit comprises a base part having a cooling device inside or outside for cooling the coolant, and a base part having an internal pump for pumping the cooled coolant to the illumination part via the arm part. and the base section are connected via the arm section.
以下図示の実施例によつて本考案を説明する。 The present invention will be explained below with reference to the illustrated embodiments.
第１図に示す本考案の一実施例である照明装置
１０は、光源である電球１と、金属等、比較的表
面の滑かな材料よりなる中空半球状の反射体２
と、少なくともこの反射板２の裏面全体を所定の
間隔で囲繞する外殻３とを備えている。電球１
は、反射体２におけるすり鉢の中心である底部に
配設され、後述モータ５やポンプ６の電源又は図
示しない電源等に連結されている。また外殻３は
必要に応じて、反射体２の周囲からその開口部２
１にわたり設けられ、開口部２１を塞ぐ部分は透
過光率の高い透明に近い材料からなるものとし、
レンズ部３１を形成している。なお外殻３を構成
する部材としては合成樹脂材等が適している。さ
らに外殻３は電球１の付近において２本の管３
２・３３に連結されている。管３２・３３はアー
ム３４内部を通つて下方に延びて冷却部を収納す
る基台３５に達し、管３３がラジエータ４の一端
に連結され、管３２が他端にポンプ６を介して連
結されている。ポンプ６を作動する電圧は電源ト
ランス６３を介して商用電源から供給される。例
えば商用電源100〜200Vを電源トランス６３によ
り10〜30Vに変換して供給される。またこの電圧
の一部はラジエータ４の冷却を図るフアン４１を
作動するモータ５に供給されている。 A lighting device 10, which is an embodiment of the present invention shown in FIG.
and an outer shell 3 that surrounds at least the entire back surface of the reflector plate 2 at predetermined intervals. light bulb 1
is disposed at the bottom of the reflector 2, which is the center of the mortar, and is connected to a power source for a motor 5 and a pump 6, which will be described later, or a power source (not shown). In addition, the outer shell 3 can be opened from around the reflector 2 to its opening 2 as necessary.
1, and the part that closes the opening 21 is made of a nearly transparent material with high transmittance.
A lens portion 31 is formed. Note that a synthetic resin material or the like is suitable for the member constituting the outer shell 3. Furthermore, the outer shell 3 has two tubes 3 in the vicinity of the light bulb 1.
It is connected to 2.33. The pipes 32 and 33 extend downward through the inside of the arm 34 and reach the base 35 that houses the cooling unit, the pipe 33 being connected to one end of the radiator 4, and the pipe 32 being connected to the other end via the pump 6. ing. The voltage for operating the pump 6 is supplied from a commercial power source via a power transformer 63. For example, a commercial power supply of 100 to 200 V is converted to 10 to 30 V by a power transformer 63 and then supplied. A part of this voltage is also supplied to a motor 5 that operates a fan 41 for cooling the radiator 4.
そしてこれら外殻３、管３２・３３及びラジエ
ータ４には、水あるいは熱伝導率、好ましくは熱
容量が大きく、かつ光透過性の高い液体よりなる
冷却液７が充填されている。冷却液７はポンプ６
の作動によつて、管３２から外殻３と反射体２間
へ、そして外殻３よりレンズ部３１へ、そしてそ
こから外殻３を介し、管３３へ到り、ラジエータ
４へ戻るように構成されている。 The outer shell 3, the tubes 32 and 33, and the radiator 4 are filled with a cooling liquid 7 made of water or a liquid having high thermal conductivity, preferably a large heat capacity, and high optical transparency. Coolant 7 is pump 6
As a result of the operation of It is configured.
管３２の出力冷却液は、外殻３と反射体２間の
全体又は約半分の面積部分を通つてレンズ部へ到
り、該レンズ部３１から直接又は残りの外殻３と
反射体２間の隙間を通つて管３３へ送られるよう
に構成されている。 The output coolant of the tube 32 passes through the entire area or approximately half the area between the outer shell 3 and the reflector 2 to reach the lens section, and from the lens section 31 directly or between the remaining outer shell 3 and the reflector 2. It is configured to be sent to the pipe 33 through the gap between the two.
次に照明装置１０の作用について説明する。電
球１の発光に伴い発生する熱は反射体２にも伝導
し、反射体２も熱を帯びるが、この熱は反射体２
周囲の外殻３との隙間の流通冷却液７に吸収され
る。熱を吸収して温度の上昇した冷却液７は管３
３を通りラジエータ４に導かれ、ラジエータ４中
において冷却され、ポンプ６の作動により管３２
を通り、再び外殻３内に送り込まれる。基台３５
内のラジエータ４には、基台３５に孔けた孔等を
介して空気等の冷却液体が充分に導入され、ラジ
エータ４に作用した後排出されるようになつてお
り、冷却液７は循環をくり返すことにより、外殻
３と反射体２の隙間に送り込まれる冷却液７の温
度はほぼ一定に保たれ、常に反射体２に生じる熱
を吸収することができ、照明装置１０全体の冷却
を図り、安定した照明を提供できる。また必要に
応じて外殻３の一部をレンズ部３１として、装置
の簡略化を図りハンデイな照明装置としている上
に、レンズ部３１内にも冷却液７が流通している
ため、発熱しないレンズ部となつている。 Next, the operation of the lighting device 10 will be explained. The heat generated as the light bulb 1 emits light is also conducted to the reflector 2, and the reflector 2 also becomes heated; however, this heat is transferred to the reflector 2.
It is absorbed by the circulating cooling liquid 7 in the gap with the surrounding outer shell 3. The coolant 7 whose temperature has increased by absorbing heat is transferred to the pipe 3
3 to the radiator 4, where it is cooled, and by the operation of the pump 6, the pipe 32
and is fed into the outer shell 3 again. Base 35
Cooling liquid such as air is sufficiently introduced into the inner radiator 4 through holes made in the base 35, and is discharged after acting on the radiator 4, and the cooling liquid 7 is circulated. By repeating this process, the temperature of the cooling liquid 7 sent into the gap between the outer shell 3 and the reflector 2 is kept almost constant, and the heat generated in the reflector 2 can be constantly absorbed, thereby cooling the entire lighting device 10. It is possible to provide stable lighting. In addition, if necessary, a part of the outer shell 3 can be used as a lens part 31 to simplify the device and make it a handy lighting device.In addition, since the cooling liquid 7 also flows inside the lens part 31, it does not generate heat. It is the lens part.
さらに他の実施例を第２図に示す。この照明装
置２０は、光源となるハロゲン電球８の周囲に設
けられる中空半球状の反射体９の内部、即ち反射
面９Ａの外側を中空にして、この中空部９１に冷
却液７を流通させるようにしたものである。反射
体９の中空部９１には、上方に管９２が、下方に
管９３が連結されている。管９２・９３は、反射
体９及び電球８を支持しているアーム９４内を通
り下方に延び、アーム９４と一体に構成された基
台９５内部から基台９５側壁部の吸入口９５ａ、
排出口９５ｂに連通している。管９２は吸入口９
５ａと連通していて、管９２と吸入口９５ａの間
にはポンプ６０が配設されている。ポンプ６０を
作動するための電圧は基台９５下部に差し込まれ
た防水コンセント６１により供給され、防水コン
セント６１からの電圧の一部はハロゲン電球８に
も供給されている。防水コンセント６１はコード
６２を介して電源トランス６３の一端に連結され
ている。電源トランス６３の他端は例えば商用電
源100〜200Vに接続され、電源トランス６３によ
り10〜30Vに変換され、ポンプ６０あるいはハロ
ゲン電球８に電圧供給されている。また基台９５
は、冷却液７が溜められた槽７１内にマグネツト
チヤツク９６等により設置され、吸入口９５ａ及
び排出口９５ｂが冷却液７中に位置される。そし
て吸入口９５ａからポンプ６０によつて吸入され
る冷却液７は、管９２を通り反射体９の中空部９
１内を流通して管９３に達し、管９３端部の排出
口９５ｂより槽７１内の冷却液７中に排出され
る。このように冷却液７は循環して反射体９に発
生する熱を吸収し、照明装置２０の寿命を長くし
ている。そして、この場合の冷却液７は光透過性
を有するものである必要はなく、冷却可能な液で
あれば良い。又、図示してはいないが、この第２
図の実施例も冷却液７の冷却装置を有する。その
場合、冷却液溜槽７１は、例えば放電加工等電気
加工装置、その他工作機械等の加工タンクや、各
種作業液タンクであつてもその加工液冷却装置に
液冷却を兼ねさせることも可能である。 Still another embodiment is shown in FIG. This lighting device 20 has a hollow hemispherical reflector 9 provided around a halogen light bulb 8 serving as a light source, with the inside of the reflector 9 hollow, that is, the outside of the reflective surface 9A, so that the coolant 7 is allowed to flow through the hollow portion 91. This is what I did. A hollow portion 91 of the reflector 9 is connected with a tube 92 at the top and a tube 93 at the bottom. The tubes 92 and 93 extend downward through an arm 94 that supports the reflector 9 and the light bulb 8, and extend from inside a base 95 that is integrally formed with the arm 94 to an inlet 95a on a side wall of the base 95,
It communicates with the discharge port 95b. The pipe 92 is the inlet 9
5a, and a pump 60 is disposed between the pipe 92 and the suction port 95a. The voltage for operating the pump 60 is supplied by a waterproof outlet 61 inserted into the lower part of the base 95, and a portion of the voltage from the waterproof outlet 61 is also supplied to the halogen light bulb 8. The waterproof outlet 61 is connected to one end of a power transformer 63 via a cord 62. The other end of the power transformer 63 is connected to, for example, a commercial power source of 100 to 200 V, which is converted to 10 to 30 V by the power transformer 63 and supplied to the pump 60 or the halogen light bulb 8. Also, the base 95
is installed by a magnetic chuck 96 or the like in a tank 71 in which the coolant 7 is stored, and an inlet 95a and an outlet 95b are located in the coolant 7. The coolant 7 sucked by the pump 60 from the suction port 95a passes through the pipe 92 and enters the hollow part 9 of the reflector 9.
1 and reaches the pipe 93, and is discharged into the cooling liquid 7 in the tank 71 from the outlet 95b at the end of the pipe 93. In this way, the coolant 7 circulates and absorbs the heat generated in the reflector 9, thereby extending the life of the lighting device 20. The cooling liquid 7 in this case does not need to have optical transparency, but may be any liquid that can be cooled. Also, although not shown, this second
The illustrated embodiment also has a cooling device for the coolant 7. In that case, the coolant reservoir tank 71 may be a machining tank for electrical machining equipment such as electrical discharge machining, other machine tools, or various working fluid tanks, and the machining fluid cooling device may also serve as liquid cooling. .
このように上記工作機械に本考案による照明装
置の冷却装置を兼ねさせると経済上非常に有利と
なる。上記第１図及び第２図実施例の場合の冷却
液の流通又は循環の方向は、図示説明の場合の逆
の向きでも良く、流通路ポンプ設置位置も適宜選
択される。 In this way, it is economically advantageous to have the machine tool also serve as a cooling device for the lighting device according to the present invention. The direction of flow or circulation of the coolant in the embodiments of FIGS. 1 and 2 may be opposite to that illustrated and described, and the installation position of the flow path pump may be selected as appropriate.
また、反射体２・９の反射面は好ましくは赤外
線透過型か、透過率の大きいものとすることが好
ましく、例えば、ハロゲンランプの反射体とし
て、５mm厚以上のMgF2，LaF2等弗化物多結晶板
を用いた場合、反射面を鏡面より約５〜30μmの
表面粗さとしておく、赤外領域の波長光の透過が
良くなり、温度上昇は1/3以下で、冷却液流通に
よる冷却効果も倍加する。 The reflective surfaces of the reflectors 2 and 9 are preferably of an infrared transmitting type or having a high transmittance.For example, as a reflector for a halogen lamp, a fluoride such as MgF 2 or LaF 2 with a thickness of 5 mm or more is used. When using a polycrystalline plate, the surface roughness of the reflective surface should be approximately 5 to 30 μm compared to the mirror surface.The transmission of wavelength light in the infrared region is improved, the temperature rise is less than 1/3, and cooling is achieved by circulating coolant. The effect is also doubled.
上記のように構成した場合、加工部に照射され
る光線に含まれる赤外線を大幅に減衰させること
ができるので、工具、被加工体の温度上昇も極力
低下させることがき、電気加工、機械加工等発熱
を伴う加工には最適な照明装置と言える。 When configured as above, it is possible to significantly attenuate the infrared rays contained in the light rays irradiated to the machining part, so it is possible to reduce the temperature rise of the tool and workpiece as much as possible, and it is suitable for electrical machining, machining, etc. It can be said to be the ideal lighting device for processing that generates heat.
以上説明したように本考案は、光源と反射体と
を備えた照明装置において、反射体裏面あるいは
その周囲に冷却液の通路を設け、冷却液を流通又
は循環するようにしたものである。したがつて光
源及び反射体に生じる熱を効率よく冷却すること
ができ、従来のものに比べ、光源の寿命が格段に
向上しており、工業用の照明装置に最適である。 As explained above, the present invention is an illumination device including a light source and a reflector, in which a coolant passage is provided on the back surface of the reflector or around the reflector so that the coolant flows or circulates. Therefore, the heat generated in the light source and the reflector can be efficiently cooled, and the life of the light source is significantly improved compared to conventional ones, making it ideal for industrial lighting devices.
第１図は本考案の一実施例を示す照明装置の断
面図、第２図は他の実施例を示す照明装置の断面
図である。
１……電球（光源）、２・９……反射体、３…
…外殻（通路）、７……冷却水、８……ハロゲン
電球（光源）、９１……中空部（通路）。
FIG. 1 is a sectional view of a lighting device showing one embodiment of the present invention, and FIG. 2 is a sectional view of a lighting device showing another embodiment. 1...Light bulb (light source), 2.9...Reflector, 3...
...Outer shell (passage), 7...Cooling water, 8...Halogen bulb (light source), 91...Hollow part (passage).
Claims (1)
中空半球状反射板と、少なくとも該反射板の裏
面全体を所定の間隔で囲繞する外殻とで形成さ
れる空間に冷却液を流通介在させるための吸排
出口を設けた照明部と、内部に前記吸排出口に
連結される一組の管を有するアーム部と、前記
照明部で加熱された冷却液を冷却するための冷
却装置を内装又は外装し、前記冷却された冷却
液を前記アーム部を介して前記照明部に圧送す
るためのポンプを内装せしめた基台部とから成
り、前記照明部と前記基台部とを前記アーム部
を介して連結してなることを特徴とする照明装
置。 ２ 前記反射体の反射面として厚さ５mm以上の
MgF2・LaF2等弗化物多結晶の高効率赤外線透
過物からなり、且つ反射面を５〜4μmの表面粗
さとして成る、ことを特徴とする実用新案登録
請求の範囲第１項記載の照明装置。[Claims for Utility Model Registration] 1. Formed by a light source, a hollow hemispherical reflector for reflecting light from the light source, and an outer shell that surrounds at least the entire back surface of the reflector at a predetermined interval. a lighting section provided with a suction/exhaust port for circulating a cooling liquid in the space; an arm section having a set of tubes connected to the suction/exhaust port inside; and an arm section for cooling the cooling liquid heated in the illumination section. A base part has a cooling device installed inside or outside, and a pump for pumping the cooled cooling liquid to the lighting part via the arm part. A lighting device characterized in that the lighting device is connected to the arm portion through the arm portion. 2 The reflective surface of the reflector has a thickness of 5 mm or more.
The illumination according to claim 1 of the utility model registration claim, characterized in that it is made of a highly efficient infrared transmitting material of fluoride polycrystals such as MgF 2 / LaF 2 , and has a reflective surface with a surface roughness of 5 to 4 μm. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982049501U JPS58152709U (en) | 1982-04-06 | 1982-04-06 | lighting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982049501U JPS58152709U (en) | 1982-04-06 | 1982-04-06 | lighting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58152709U JPS58152709U (en) | 1983-10-13 |
| JPS634345Y2 true JPS634345Y2 (en) | 1988-02-03 |
Family
ID=30060351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982049501U Granted JPS58152709U (en) | 1982-04-06 | 1982-04-06 | lighting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58152709U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009064661A (en) * | 2007-09-06 | 2009-03-26 | Nec Lighting Ltd | Water tank with light source |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4886389A (en) * | 1972-02-16 | 1973-11-14 | ||
| JPS51141489A (en) * | 1975-05-22 | 1976-12-06 | Sun Chemical Corp | Lamp assembly for hardening photopolymerization material |
-
1982
- 1982-04-06 JP JP1982049501U patent/JPS58152709U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4886389A (en) * | 1972-02-16 | 1973-11-14 | ||
| JPS51141489A (en) * | 1975-05-22 | 1976-12-06 | Sun Chemical Corp | Lamp assembly for hardening photopolymerization material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58152709U (en) | 1983-10-13 |
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