DE3376922D1 - Improvements in photoprinting lamps - Google Patents

Improvements in photoprinting lamps

Info

Publication number
DE3376922D1
DE3376922D1 DE8383307089T DE3376922T DE3376922D1 DE 3376922 D1 DE3376922 D1 DE 3376922D1 DE 8383307089 T DE8383307089 T DE 8383307089T DE 3376922 T DE3376922 T DE 3376922T DE 3376922 D1 DE3376922 D1 DE 3376922D1
Authority
DE
Germany
Prior art keywords
photoprinting
lamps
photoprinting lamps
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
Application number
DE8383307089T
Other languages
German (de)
Inventor
Robert Brian Page
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.)
Thorn EMI PLC
Original Assignee
Thorn EMI PLC
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 Thorn EMI PLC filed Critical Thorn EMI PLC
Application granted granted Critical
Publication of DE3376922D1 publication Critical patent/DE3376922D1/en
Expired 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
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
DE8383307089T 1982-11-30 1983-11-21 Improvements in photoprinting lamps Expired DE3376922D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8234089 1982-11-30

Publications (1)

Publication Number Publication Date
DE3376922D1 true DE3376922D1 (en) 1988-07-07

Family

ID=10534624

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383307089T Expired DE3376922D1 (en) 1982-11-30 1983-11-21 Improvements in photoprinting lamps

Country Status (3)

Country Link
EP (1) EP0110645B1 (en)
DE (1) DE3376922D1 (en)
DK (1) DK548283A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3568512D1 (en) * 1984-04-19 1989-04-06 Gen Electric Reflector lamp and lighting systems particularly suitable for architectural lighting
NL191812C (en) * 1987-09-04 1996-08-02 Philips Electronics Nv High-pressure gas discharge lamp and luminaire fitted with that lamp.
GB8725913D0 (en) * 1987-11-05 1987-12-09 Emi Plc Thorn Plant growth lamps
GB9607129D0 (en) * 1996-04-04 1996-06-12 Gew Ec Ltd Uv dryer with improved reflector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2110663A5 (en) * 1970-10-26 1972-06-02 Aquitaine Total Organico
GB1397034A (en) * 1973-07-05 1975-06-11 Thorn Electrical Ind Ltd Discharge lamps
DE2718527A1 (en) * 1977-04-26 1978-11-09 Patra Patent Treuhand High pressure discharge lamp with ferrous spectral output - has ferrous halide and mercury containing filling and closely spaced electrodes
US4197480A (en) * 1978-09-11 1980-04-08 Westinghouse Electric Corp. Reflector-type hid sodium vapor lamp unit with dichroic reflector

Also Published As

Publication number Publication date
EP0110645A2 (en) 1984-06-13
EP0110645B1 (en) 1988-06-01
EP0110645A3 (en) 1985-05-29
DK548283D0 (en) 1983-11-30
DK548283A (en) 1984-05-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: BRUEMMERSTEDT, H., DIPL.-ING., PAT.-ANW., 3000 HANNOVER