JPS5632135A - Lamp house - Google Patents

Lamp house

Info

Publication number
JPS5632135A
JPS5632135A JP10784279A JP10784279A JPS5632135A JP S5632135 A JPS5632135 A JP S5632135A JP 10784279 A JP10784279 A JP 10784279A JP 10784279 A JP10784279 A JP 10784279A JP S5632135 A JPS5632135 A JP S5632135A
Authority
JP
Japan
Prior art keywords
venturi tube
lamp house
cooling water
light source
shading
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
Application number
JP10784279A
Other languages
Japanese (ja)
Inventor
Tetsuo Miyazaki
Mitsuo Inoue
Shigenori Oohata
Akihiko Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10784279A priority Critical patent/JPS5632135A/en
Publication of JPS5632135A publication Critical patent/JPS5632135A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

PURPOSE: To prevent transfer of boiling heat from occuring in a lamp house using an ultra-high-voltage mercury arc lamp by making the velocity of flow of cooling water high with a Venturi tube formed by the shading cylinder provided with an opening for spot light source in the slot part.
CONSTITUTION: The ultra-high-voltage mercury arc lamp 3 in a lamp house 4 is cooled by the cooling water circulated by force convection in a shading cylinder 7 forming a Venturi tube. A shading plate 9 is provided in the slot part of the Venturi tube and a spot light source is obtained by a micro-opening 8. High heat spot light source light by the electric discharge of the mercury arc lamp 3 is emitted from a quartz glass window 5 by a quartz capillary tube. This Venturi tube makes the velocity of flow of cooling water highest near the shading plate 9. Hence, the occurrence of transfer of boiling heat to the shading plate 9, window 5, etc. is prevented and the lamp house becomes stable and longer in life.
COPYRIGHT: (C)1981,JPO&Japio
JP10784279A 1979-08-24 1979-08-24 Lamp house Pending JPS5632135A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10784279A JPS5632135A (en) 1979-08-24 1979-08-24 Lamp house

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10784279A JPS5632135A (en) 1979-08-24 1979-08-24 Lamp house

Publications (1)

Publication Number Publication Date
JPS5632135A true JPS5632135A (en) 1981-04-01

Family

ID=14469430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10784279A Pending JPS5632135A (en) 1979-08-24 1979-08-24 Lamp house

Country Status (1)

Country Link
JP (1) JPS5632135A (en)

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