JPS55120052A - Slit lighting device - Google Patents

Slit lighting device

Info

Publication number
JPS55120052A
JPS55120052A JP2733279A JP2733279A JPS55120052A JP S55120052 A JPS55120052 A JP S55120052A JP 2733279 A JP2733279 A JP 2733279A JP 2733279 A JP2733279 A JP 2733279A JP S55120052 A JPS55120052 A JP S55120052A
Authority
JP
Japan
Prior art keywords
luminous flux
slit part
broadly
mirror
reflecting mirror
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
JP2733279A
Other languages
Japanese (ja)
Inventor
Noritaka Mochizuki
Atsushi Kubota
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2733279A priority Critical patent/JPS55120052A/en
Priority to DE19803008653 priority patent/DE3008653A1/en
Priority to FR8005194A priority patent/FR2451055B1/en
Priority to GB8007986A priority patent/GB2045450B/en
Publication of JPS55120052A publication Critical patent/JPS55120052A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/28—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning
    • G03G15/30—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning in which projection is formed on a drum
    • 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
    • G03B27/522—Projection optics
    • G03B27/525—Projection optics for slit exposure
    • G03B27/526—Projection optics for slit exposure in which the projection optics move
    • G03B27/527—Projection optics for slit exposure in which the projection optics move as a whole in a translatory movement

Abstract

PURPOSE:To let the device suitable for copying of thick originals, such as books, by radiating the slit part broadly by a light emitting body in a copying machine, etc. CONSTITUTION:An upper reflecting mirror 9 and lower reflecting mirror 5 enclosing a light source 4 are provided and the luminous flux reflected from the mirror 5 lights a slit part 8 directly broadly by the divergent luminous flux. The luminous flux reflected from the mirror 9 is again reflected by the reflecting mirror 11 provided on the side opposite from the light source position with the optical path from the slit part 8 up to a lens 1 in-between and lights the slit part 8 broadly with the divergent luminous flux. Thereby, the thick originals, such as books, may be copied.
JP2733279A 1979-03-09 1979-03-09 Slit lighting device Pending JPS55120052A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2733279A JPS55120052A (en) 1979-03-09 1979-03-09 Slit lighting device
DE19803008653 DE3008653A1 (en) 1979-03-09 1980-03-06 SLOT LIGHTING DEVICE
FR8005194A FR2451055B1 (en) 1979-03-09 1980-03-07 DEVICE FOR LIGHTING A COLLIMATOR SLOT
GB8007986A GB2045450B (en) 1979-03-09 1980-03-10 Line-by-line photocopying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2733279A JPS55120052A (en) 1979-03-09 1979-03-09 Slit lighting device

Publications (1)

Publication Number Publication Date
JPS55120052A true JPS55120052A (en) 1980-09-16

Family

ID=12218105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2733279A Pending JPS55120052A (en) 1979-03-09 1979-03-09 Slit lighting device

Country Status (1)

Country Link
JP (1) JPS55120052A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57208572A (en) * 1981-06-17 1982-12-21 Matsushita Electric Ind Co Ltd Luminaire for slit exposure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57208572A (en) * 1981-06-17 1982-12-21 Matsushita Electric Ind Co Ltd Luminaire for slit exposure
JPS6227371B2 (en) * 1981-06-17 1987-06-15 Matsushita Electric Ind Co Ltd

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