JPS56121028A - Illumination source device - Google Patents

Illumination source device

Info

Publication number
JPS56121028A
JPS56121028A JP2446880A JP2446880A JPS56121028A JP S56121028 A JPS56121028 A JP S56121028A JP 2446880 A JP2446880 A JP 2446880A JP 2446880 A JP2446880 A JP 2446880A JP S56121028 A JPS56121028 A JP S56121028A
Authority
JP
Japan
Prior art keywords
halogen lamp
linear
focus line
axis plane
elliptic column
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
JP2446880A
Other languages
Japanese (ja)
Inventor
Yutaka Koizumi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP2446880A priority Critical patent/JPS56121028A/en
Publication of JPS56121028A publication Critical patent/JPS56121028A/en
Pending 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
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

PURPOSE:To facilitate adjustments by positioning an opening part closely to a linear light source while its slit is in parallel to a focus line and making said part to cross the long-axis plane of ellipse-columnar sapce. CONSTITUTION:The shape of the cross section of reflector 100 shown in the figure is prolonged in the direction perpendicular to the plane of the figure and its internal surface part except the opening part 2 is a mirror surface and the shape of the circumferential surface of an elliptic column. On linear part 301 extended in the center of the transparent glass tube of halogen lamp 300, light emission parts are distributed desultorily. Halogen lamp 300 is arranged having linear part 301 agreeing with the focus line of the elliptic column. With this illumination source device, cylindrical lens 400 is combined; its optical axis plane is made to agree with the long axis plane of the elliptic column, and the focus line of cylindrical lens 400 is arranged agreeing with linear part 301 of halogen lamp 300, obtaining a parallel beam.
JP2446880A 1980-02-28 1980-02-28 Illumination source device Pending JPS56121028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2446880A JPS56121028A (en) 1980-02-28 1980-02-28 Illumination source device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2446880A JPS56121028A (en) 1980-02-28 1980-02-28 Illumination source device

Publications (1)

Publication Number Publication Date
JPS56121028A true JPS56121028A (en) 1981-09-22

Family

ID=12138989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2446880A Pending JPS56121028A (en) 1980-02-28 1980-02-28 Illumination source device

Country Status (1)

Country Link
JP (1) JPS56121028A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5153781A (en) * 1974-11-05 1976-05-12 Ricoh Kk Suritsutoshomeisochi
JPS5423349U (en) * 1977-07-18 1979-02-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5153781A (en) * 1974-11-05 1976-05-12 Ricoh Kk Suritsutoshomeisochi
JPS5423349U (en) * 1977-07-18 1979-02-15

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