JPS5496040A - Original light device in copying machine having original read function - Google Patents

Original light device in copying machine having original read function

Info

Publication number
JPS5496040A
JPS5496040A JP295678A JP295678A JPS5496040A JP S5496040 A JPS5496040 A JP S5496040A JP 295678 A JP295678 A JP 295678A JP 295678 A JP295678 A JP 295678A JP S5496040 A JPS5496040 A JP S5496040A
Authority
JP
Japan
Prior art keywords
original
light source
source lamp
reflecting mirror
oval reflecting
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
JP295678A
Other languages
Japanese (ja)
Other versions
JPS6023339B2 (en
Inventor
Yohei Ikezu
Toshiyuki Iguchi
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 JP53002956A priority Critical patent/JPS6023339B2/en
Publication of JPS5496040A publication Critical patent/JPS5496040A/en
Publication of JPS6023339B2 publication Critical patent/JPS6023339B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE: To let adequate lighting be effected for both modes of copying mode and original read mode by integrating a light source lamp and an oval reflecting mirror to permit relative movement with the original rest part and providing a shield plate for illuminance distribution adjustment.
CONSTITUTION: An oval reflecting mirror 2 is integrated and provided so as to nearly enclose a light source lamp over the length direction of the light source lamp 1 and a shield plate 4 for illuminance distribution adjustment has a shape wherein the central part bows so that the illuminance distributions of the lighted part become large on both end part sides of the light source lamp 1 and small near the central part. To change over from the position of I indicating photoreceptor exposure to the position for original read scanning, the oval reflecting mirror 2 and light source lamp 1 are parallel moved as illustrated in II so as to go away from the original rest glass 3, then the reflected light condenses in the slit form region of an extremely fine width on the original, lighting said region with high luminous intensity.
COPYRIGHT: (C)1979,JPO&Japio
JP53002956A 1978-01-14 1978-01-14 Original illumination device in a copying machine with original reading function Expired JPS6023339B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53002956A JPS6023339B2 (en) 1978-01-14 1978-01-14 Original illumination device in a copying machine with original reading function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53002956A JPS6023339B2 (en) 1978-01-14 1978-01-14 Original illumination device in a copying machine with original reading function

Publications (2)

Publication Number Publication Date
JPS5496040A true JPS5496040A (en) 1979-07-30
JPS6023339B2 JPS6023339B2 (en) 1985-06-07

Family

ID=11543808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53002956A Expired JPS6023339B2 (en) 1978-01-14 1978-01-14 Original illumination device in a copying machine with original reading function

Country Status (1)

Country Link
JP (1) JPS6023339B2 (en)

Also Published As

Publication number Publication date
JPS6023339B2 (en) 1985-06-07

Similar Documents

Publication Publication Date Title
JPS5491220A (en) Lighting device for exposure
JPS5455420A (en) Slit illuminator
JPS5496040A (en) Original light device in copying machine having original read function
JPS57161764A (en) Original lighting device of copying machine or the like
JPS5581337A (en) Lighting device for exposure in slit exposure type copying machine
JPS52102729A (en) Original copy illumination for monochroic electronic copying machine
JPS5445124A (en) Lighting unit for copier
JPS5646263A (en) Original lighting device of electronic copying machine
JPS55125765A (en) Read-in unit
JPS5662473A (en) Corrector for exposure
JPS5678853A (en) Illumination device
JPS5315144A (en) Exposure device for variable magnification type electrophotographic copier
JPS55124167A (en) Lighting device
JPS5692553A (en) Lighting device
JPS5484723A (en) Lighting device
JPS5768877A (en) Lighting device of copying machine
JPS55120052A (en) Slit lighting device
JPS5343413A (en) Manuscript illuminating device
JPS5444518A (en) Lighting unit for copier
JPS5351731A (en) Illuminating device
JPS5581336A (en) Slit lighting device in copying machine
JPS56154760A (en) Illuminator of copying machine
JPS54133140A (en) Photoreceptor exposure adjusting method in copying machine
JPS5726841A (en) Scanning illumination device
JPS5386110A (en) Light volume adjusting mechanism of facsimile device