JPS57122456A - Original illuminator in copying machine - Google Patents

Original illuminator in copying machine

Info

Publication number
JPS57122456A
JPS57122456A JP18572580A JP18572580A JPS57122456A JP S57122456 A JPS57122456 A JP S57122456A JP 18572580 A JP18572580 A JP 18572580A JP 18572580 A JP18572580 A JP 18572580A JP S57122456 A JPS57122456 A JP S57122456A
Authority
JP
Japan
Prior art keywords
parts
light
light shielding
illuminance
arrived
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
JP18572580A
Other languages
Japanese (ja)
Inventor
Takeaki Agata
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 JP18572580A priority Critical patent/JPS57122456A/en
Publication of JPS57122456A publication Critical patent/JPS57122456A/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
    • G03B27/542—Lamp housings; Illuminating means for copying cameras, reflex exposure lighting

Landscapes

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

Abstract

PURPOSE:To even the illuminance distributions on an original surface by providing light shielding parts in the course of light going toward the parts of the original surface where the irregularities in the illuminance distributions are produced or in the vicinity of the course. CONSTITUTION:Light shielding parts 13 are provided on the 1st part 6 of a reflection mirror 1. The parts 13 are constituted by coating paint of a color of high light absorption, for example, black, on said parts or are constituted by affixing small pieces having a color of large high absorption to said parts. In this way, the light which has arrived at the parts 13 among the light emitted from respective lamps 2 is mostly absorbed by the light shielding parts; hence, the quantity of the light which has arrived at the parts on the orginal surface where illuminance is heretofore particularly high is decreased and the irregular projections are eliminated.
JP18572580A 1980-12-30 1980-12-30 Original illuminator in copying machine Pending JPS57122456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18572580A JPS57122456A (en) 1980-12-30 1980-12-30 Original illuminator in copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18572580A JPS57122456A (en) 1980-12-30 1980-12-30 Original illuminator in copying machine

Publications (1)

Publication Number Publication Date
JPS57122456A true JPS57122456A (en) 1982-07-30

Family

ID=16175757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18572580A Pending JPS57122456A (en) 1980-12-30 1980-12-30 Original illuminator in copying machine

Country Status (1)

Country Link
JP (1) JPS57122456A (en)

Similar Documents

Publication Publication Date Title
JPS5768801A (en) Linear lighting equipment
JPS6486401A (en) Head light of vehicle
JPS57122456A (en) Original illuminator in copying machine
JPS5794672A (en) Method for inspecting whether parts are present or not
JPS64984A (en) Image forming device
JPS52102729A (en) Original copy illumination for monochroic electronic copying machine
JPS6427639A (en) Ultraviolet ray irradiation device
JPS5768877A (en) Lighting device of copying machine
JPS52143044A (en) Reflection preventive method
JPS5678853A (en) Illumination device
JPS5646263A (en) Original lighting device of electronic copying machine
JPS5238944A (en) Optical system for scanning
JPS5538707A (en) Solidified illumination source
JPS5763573A (en) Destaticizing lam for electrophotographic photoreceptor
JPS6466643A (en) Color photosensitive material and image forming method
JPS57139734A (en) Auxiliary illuminating device for transparent subject
JPS56107671A (en) Light quantity correction device of facsimile
JPS56109332A (en) Contact printer
ES256142U (en) Color variator for lamps. (Machine-translation by Google Translate, not legally binding)
JPS57118638A (en) Determination of end point in development of resist
JPS5740274A (en) Original lighting device of copying machine
JPS54100174A (en) Reflection plate for lighting apparatus
JPS5440095A (en) Display unit with illumination
JPS5528061A (en) Shade eliminating method in electrostatic copier
JPS577049A (en) Fluorescent board and manufacture