DE2912502A1 - Lampengehaeuse zur verwendung bei der herstellung von kopien - Google Patents

Lampengehaeuse zur verwendung bei der herstellung von kopien

Info

Publication number
DE2912502A1
DE2912502A1 DE19792912502 DE2912502A DE2912502A1 DE 2912502 A1 DE2912502 A1 DE 2912502A1 DE 19792912502 DE19792912502 DE 19792912502 DE 2912502 A DE2912502 A DE 2912502A DE 2912502 A1 DE2912502 A1 DE 2912502A1
Authority
DE
Germany
Prior art keywords
light
housing
lamp
lamps
lamp housing
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.)
Ceased
Application number
DE19792912502
Other languages
German (de)
English (en)
Inventor
Benjamin Eisenberg
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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of DE2912502A1 publication Critical patent/DE2912502A1/de
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/727—Optical projection devices wherein the contrast is controlled optically (e.g. uniform exposure, two colour exposure on variable contrast sensitive material)
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means
    • G03B27/545—Lamp housings; Illuminating means for enlargers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
DE19792912502 1978-03-31 1979-03-29 Lampengehaeuse zur verwendung bei der herstellung von kopien Ceased DE2912502A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1262878 1978-03-31

Publications (1)

Publication Number Publication Date
DE2912502A1 true DE2912502A1 (de) 1979-10-11

Family

ID=10008205

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792912502 Ceased DE2912502A1 (de) 1978-03-31 1979-03-29 Lampengehaeuse zur verwendung bei der herstellung von kopien

Country Status (2)

Country Link
JP (1) JPS54133330A (enrdf_load_stackoverflow)
DE (1) DE2912502A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920007457Y1 (ko) * 1990-10-10 1992-10-15 삼성전자 주식회사 일체형 열교환기

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1522265A1 (de) * 1966-05-12 1969-08-14 Simmon Brothers Inc Beleuchtungseinrichtung fuer photographische Vergroesserungsgeraete
GB1539468A (en) * 1977-07-04 1979-01-31 Ciba Geigy Ag Enlarger head lamphouse for printing variable contrast photographic material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1522265A1 (de) * 1966-05-12 1969-08-14 Simmon Brothers Inc Beleuchtungseinrichtung fuer photographische Vergroesserungsgeraete
GB1539468A (en) * 1977-07-04 1979-01-31 Ciba Geigy Ag Enlarger head lamphouse for printing variable contrast photographic material

Also Published As

Publication number Publication date
JPS6223855B2 (enrdf_load_stackoverflow) 1987-05-26
JPS54133330A (en) 1979-10-17

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Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM.

8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: G03B 27/54

8131 Rejection