JPS5760656A - Forcefuly cooled super high pressure mercury lamp - Google Patents

Forcefuly cooled super high pressure mercury lamp

Info

Publication number
JPS5760656A
JPS5760656A JP13736080A JP13736080A JPS5760656A JP S5760656 A JPS5760656 A JP S5760656A JP 13736080 A JP13736080 A JP 13736080A JP 13736080 A JP13736080 A JP 13736080A JP S5760656 A JPS5760656 A JP S5760656A
Authority
JP
Japan
Prior art keywords
majority
film
lamp
optical film
forcefuly
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.)
Granted
Application number
JP13736080A
Other languages
Japanese (ja)
Other versions
JPH024100B2 (en
Inventor
Yasuo Iwasaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13736080A priority Critical patent/JPS5760656A/en
Publication of JPS5760656A publication Critical patent/JPS5760656A/en
Publication of JPH024100B2 publication Critical patent/JPH024100B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To improve the strength of the exposure light beam by forming a selective optical film which permeate the majority of the heat ray while reflecting the majority of near-infrared ray on the surface at one side of the outercircumference of a silicon glass pipe. CONSTITUTION:In place of a metal deposition film 11 formed on the surface at one side of a silicon glass pipe 3 of a forcefuly cooled super high pressure mercury lamp 2, a selective optical film 12 where the multi-layer film of CeO2 and MgF2 is formed with predetermined depth. Said film 12 is formed by controlling the depth of each deposition layer such that the reflection factor at the near ultraviolet section of 3650A is 70-90% while the relfection factor at the near infrared section is 10- 20%. The mercury is encapsulated in the pipe 3 then the high voltage is applied between the electrode terminals 6 to operate a lamp 2. With such optical film 12, the majority of the heat ray radiated from the interior of the lamp 2 will never be reflected again while the majority of the near ultraviolet ray is reflected again thus to increase the strength of the exposure light beam. Furthermore the lowering of the service life due to the temperature rise and the disturbance of the light distribution will never occur.
JP13736080A 1980-09-29 1980-09-29 Forcefuly cooled super high pressure mercury lamp Granted JPS5760656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13736080A JPS5760656A (en) 1980-09-29 1980-09-29 Forcefuly cooled super high pressure mercury lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13736080A JPS5760656A (en) 1980-09-29 1980-09-29 Forcefuly cooled super high pressure mercury lamp

Publications (2)

Publication Number Publication Date
JPS5760656A true JPS5760656A (en) 1982-04-12
JPH024100B2 JPH024100B2 (en) 1990-01-26

Family

ID=15196837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13736080A Granted JPS5760656A (en) 1980-09-29 1980-09-29 Forcefuly cooled super high pressure mercury lamp

Country Status (1)

Country Link
JP (1) JPS5760656A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62267819A (en) * 1986-05-16 1987-11-20 Rikagaku Kenkyusho Light pen
JPS6320258U (en) * 1986-07-22 1988-02-10
EP0727813A2 (en) * 1995-02-14 1996-08-21 General Electric Company UV radiation-absorbing coatings
JP2007157583A (en) * 2005-12-07 2007-06-21 Ushio Inc Light illumination device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5134582A (en) * 1974-07-15 1976-03-24 Gte Sylvania Inc
JPS5178085A (en) * 1974-11-27 1976-07-07 Philips Nv
JPS5325084A (en) * 1976-08-06 1978-03-08 Perkin Elmer Corp Gas discharge lamp
JPS54184062U (en) * 1978-06-16 1979-12-27

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5134582A (en) * 1974-07-15 1976-03-24 Gte Sylvania Inc
JPS5178085A (en) * 1974-11-27 1976-07-07 Philips Nv
JPS5325084A (en) * 1976-08-06 1978-03-08 Perkin Elmer Corp Gas discharge lamp
JPS54184062U (en) * 1978-06-16 1979-12-27

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62267819A (en) * 1986-05-16 1987-11-20 Rikagaku Kenkyusho Light pen
JPS6320258U (en) * 1986-07-22 1988-02-10
EP0727813A2 (en) * 1995-02-14 1996-08-21 General Electric Company UV radiation-absorbing coatings
JP2007157583A (en) * 2005-12-07 2007-06-21 Ushio Inc Light illumination device
TWI391235B (en) * 2005-12-07 2013-04-01 Ushio Electric Inc Light irradiation device

Also Published As

Publication number Publication date
JPH024100B2 (en) 1990-01-26

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