• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A method and apparatus for the manufacture of printing masters by electrophotographic means in which the unexposed printing masters are placed in the apparatus in a printing master holder and undergo electrostatic charging, image exposure, development, drying and discharging from the apparatus mechanically. The apparatus provides a charging device, a lighting device for indirect illumination of an original, an imaging device for projecting the image of the original in a preselected scale onto the printing master, and transportation, development, and drying means.
    公开号:SU971118A3
    申请号:SU772494654
    申请日:1977-06-13
    公开日:1982-10-30
    发明作者:Фризе Фердинанд
    申请人:Хехст Аг(Фирма)；
    IPC主号:
    专利说明:

    The invention relates to lighting equipment, in particular to lighting devices, and can be used in projection-copy machines to illuminate the original and project it onto a light-j sensitive material.
    A lighting device of a projection-copy machine is known for illuminating an original and projecting it onto a photosensitive material, up to containing a box-shaped case with a cover in which a hole is made to accommodate the area of the original and the original holder, and a base in which a rectangular opening is made for the day of the output of radiation reflected from the original, and linear light sources mounted on the base of the housing along the opposite side reflective walls of the housing [1}. 20
    A disadvantage of the known device is that when the original is highlighted, shadows from the edges of the original are obtained. 28
    The purpose of the invention is to increase the uniformity of illumination of the original.
    This goal is achieved by the fact that in the lighting device of the projection and copy machine for illuminating the original and projecting it onto a photosensitive material containing a box-shaped case with a lid in which a hole is made to accommodate the area of the original and the original holder, and a base in which a rectangular exit hole is made radiation reflected from the original, and linear light sources mounted on the base of the housing along one opposite side reflective walls of the housing , There are additional linear light sources arranged along the other opposite side reflecting walls of the housing, curved reflectors mounted on the side walls of the reflecting body, and attachments from the flange. shielding the original from direct radiation, a light source located in the opening of the housing base, each of the linear light sources being placed under the nozzle flange and has a reflector, whose light opening faces the reflecting walls of the housing. 5
    In this case, the light sources are mounted on the basis of the symmetrical longitudinal and transverse axis of symmetry of the rectangular hole for the output of radiation reflected from the original, with two light sources placed on the u large sides of the hole, and one on the smaller sides.
    Pa fig. 1 schematically shows a projection copy machine with a lighting, 5 light device, section; in Fig. 2 the same, horizontal section; in FIG. 3 is a section AA in FIG. 2.
    The projection-copying apparatus includes a lighting device 1 and 20 a projection device 2 with a mirror for projecting the image of the original 4 onto a plate 5 of a photosensitive material.
    Lighting device 1 ( designed for lighting the original 4, contains a box-shaped housing B with a cover 7, in which a hole is made to accommodate the area of the original 4 and the original content 8. The base 9 of the housing 30 has a rectangular opening 10 for the output reflected from the original radiation, and the side walls 11 of the housing 6 have a reflective coating.
    A nozzle .12 with a flange 13 is placed in a rectangular hole 10 of the base of the housing 6 for shielding the original 4 from rectangular radiation. Linear sources 14 mounted on the base of the housing 6 along its side hatching walls 11 under the flange 13 of the nozzle 12 are symmetrical to the longitudinal and transverse axes of symmetry of the rectangular hole 10 of the base 9 of the housing, 6, and on the large sides of the hole two light sources are placed, and 45 on the smaller sides - one each. Each linear Source 14 has a refpek. the torus 15, the light aperture of which faces the corresponding reflectivity of the side wall 11 of the housing 6, and 50 of each side wall 11 of the housing 6 is mounted a curved reflector 16 In operation, the lighting device 1, the direct light of the light source 14 is shielded flaypem 13 of nozzle 12, 5S and the original 4 illuminated by radiation reflected from the reflectors 15 and 16, as well as partially from the reflecting side walls 11 of the housing 6. Thus, shadows from the edges of the original are avoided.
    The light reflected from the original 4, passing through the projection device 2, is reflected from the mirror 3 and enters the plate 5 from a photosensitive material.
    The projection-copy machine with the proposed device allows to obtain high-quality images in which there are no shadows from the edges of the original.
    权利要求:
    Claims (2)
    [1]
    397 of the base of the housing, moreover, in the case of neural light sources placed under the flange of the nozzle and having a reflector, the light emission of which is facing the reflecting walls of the housing. At the same time, the light sources are mounted on the basis of a symmetrical longitudinal and transverse axis of symmetry of the rectangular opening to exit the radiation reflected from the original, and on the larger sides of the opening: two sources of light are placed, and on the smaller sides - one at a time. FIG. 1 schematically shows a copying machine with a lighting device, a section, in Fig. 2 the same, a horizontal section; in fig. 3 shows section A-A in FIG. 2. The projection-copying machine contains a lighting device 1 and a projection device 2 with a 3d mirror to project the image of the original 4 onto the plate 5 of a photosensitive material. The lighting device 1, designed to illuminate the original 4, contains a box-shaped body 3 with a lid 7 in which a hole is made to accommodate the pad of the original 4 and the original holder 8. The base 9 of the building 6 has a rectangular hole 10 to exit the reflected from the original 4, and the side the walls 11 of the housing 6 have a reflective coating. In the rectangular opening 10 of the base of the housing 6, nozzles 12 with a flange 13 are placed to shield the original 4 from rectangular radiation of linear sources 14 mounted on the base of the housing 6 along its side fences 11 under the flange 13 nozzle 12 symmetrically with longitudinal and transverse axes of symmetry The rectangular opening 10 of the housing base 9, b, with two sources of light placed on the large sides of the opening, and one at a time on the smaller sides. Each linear source 14 is named; it has a reflector 15, the light hole of which is facing the corresponding reflective side wall 11 of housing 6, and on each side wall 11 of Kortus 6 a curvilinear reflector 1 is mounted. When the lighting device 1 is operating, the direct light of the light sources 14 is shielded by a cable. 13, the nozzle 12, and 4 is illuminated by the radiation reflected from the reflectors 15 and 16, and also partially from the reflecting side walls of the housing 11 of the housing 6. Thus, shadows from the edges of the original are avoided. The light reflected from the original 4, the passage through the projection device 2, is reflected from the mirror 3 and hits the plate 5 of a photosensitive material. A projection copying machine with the proposed device allows to obtain high-quality images in which there are no shadows from the edges of the original. Claim 1. Illuminating device of a projection-copier for illuminating the original and projecting it onto photosensitive material, comprising a box-shaped body with a lid with a hole for accommodating the platform for the original and the original card and a base in which a rectangular hole is made for the output of the reflected from the original radiation, and linear light sources mounted on the base of the body along one opposite side reflecting walls of the body, characterized by If, in order to improve the uniformity of the original lighting, it has additional linear light sources placed along other opposite side reflecting walls of the body, curvilinear reflectors mounted on the side reflecting walls of the body, and nozzles with a flange for shielding the original from direct radiation. light sources located in the opening of the base of the body, each of the linear light sources placed under the flange of the nozzle and has a reflector, the light hole of which is facing the reflecting walls of the body.
    [2]
    2. The device according to claim 1, wherein the light sources are mounted based symmetrically on the longitudinal and transverse axes of symmetry of the rectangular opening to exit the radiation reflected from the original, and on large sides of the opening placed on two sources of light, and on the smaller sides - one at a time. Sources of information taken into account in the examination 1. Application of Germany No. 2160439, cl. G 03 C5 15 / O4, 1972.
    WITH
    uh
    类似技术:
    公开号 | 公开日 | 专利标题
    SU971118A3|1982-10-30|Illumination apparatus for projecting and copying system for iluminating original and projecting it onto photosensitive material
    US3724940A|1973-04-03|Electrophotographic copying apparatus with means for erasing marginal images
    US3586849A|1971-06-22|Illumination system
    US3697177A|1972-10-10|Illuminating system for a copying machine
    JPS6024539A|1985-02-07|Optical device
    US3567344A|1971-03-02|Illuminating device for original of an electrophotographic duplicating machine
    US4571058A|1986-02-18|Flash illumination and optical imaging system
    JPS56132358A|1981-10-16|Copying apparatus
    US3272067A|1966-09-13|Copying apparatus
    JPS6380245A|1988-04-11|Color image copying device
    JPS5529862A|1980-03-03|Electrocopying apparatus
    JPS58196554A|1983-11-16|Variable power copying apparatus
    JPS61172176A|1986-08-02|Copying machine having function of copying additional information
    JPS5828764A|1983-02-19|Flash exposure type copying machine
    JPS6151187A|1986-03-13|Electrophotographic device
    SU828160A1|1981-05-07|Method of intensification of electrophotographic image
    JPS62192767A|1987-08-24|Side erasing device for copying machine that executes zoom variable magnification
    JPH0682932A|1994-03-25|Exposing device for image forming device
    JPS6024534A|1985-02-07|Optical device
    JPH0378773A|1991-04-03|Copying machine
    KR940012042A|1994-06-22|2D image projection method using mirror copying device and its device
    JPS59152436A|1984-08-31|Illuminating device of copying machine
    JPS5919934A|1984-02-01|Variable magnification electrostatic copying machine
    JPS56156852A|1981-12-03|Exposure mechanism for copying machine
    KR890010636A|1989-08-09|Antistatic device of copier
    同族专利:
    公开号 | 公开日
    IT1052213B|1981-06-20|
    NL168349C|1982-03-16|
    NL168349B|1981-10-16|
    SE7512456L|1976-05-09|
    AT352758B|1979-10-10|
    AU499815B2|1979-05-03|
    NL7801030A|1978-05-31|
    FR2290701A1|1976-06-04|
    SE425128B|1982-08-30|
    SE8202402L|1982-04-16|
    CA1064567A|1979-10-16|
    US4006984A|1977-02-08|
    SE445152B|1986-06-02|
    CH592901A5|1977-11-15|
    ATA846175A|1979-03-15|
    DE2452979A1|1976-07-01|
    BE835296A|1976-05-05|
    SE448191B|1987-01-26|
    FR2290701B1|1981-06-12|
    NL7512973A|1976-05-11|
    GB1504354A|1978-03-22|
    SE8202401L|1982-04-16|
    DE2452979C2|1981-12-24|
    JPS594697B2|1984-01-31|
    SU683646A3|1979-08-30|
    JPS5170003A|1976-06-17|
    AU8632275A|1977-05-12|
    ES442458A1|1977-03-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3091219A|1957-06-03|1963-05-28|Xerox Corp|Xerographic developing apparatus|
    US2945434A|1959-07-02|1960-07-19|Haloid Xerox Inc|Sheet feed mechanism|
    US3330555A|1962-04-24|1967-07-11|Plastic Coating Corp|Pneumatic sheet feeding platen and supply magazine|
    US3218950A|1962-09-04|1965-11-23|Minnesota Mining & Mfg|Apparatus for exposing and developing printing plates|
    US3272066A|1963-03-08|1966-09-13|Comstock & Wescott|Copying apparatus|
    DE1597736A1|1967-08-22|1970-06-04|Staub Gmbh Wilhelm|Device for copying offset plates|
    US3428397A|1967-12-28|1969-02-18|Dennison Mfg Co|Illumination in optical imaging apparatus|
    US3580674A|1968-11-19|1971-05-25|Klimsch & Co|Device for fast removal of exposed film from the suction board of process cameras and delivery to a subsequent process station|
    US3634006A|1970-03-11|1972-01-11|George Lithograph Co|Machine for producing plates and prints from microfilm|
    US3683803A|1970-07-14|1972-08-15|Addressograph Multigraph|Master making control for duplicating machine|
    US3669538A|1970-08-31|1972-06-13|Ibm|Illumination system|US4149798A|1977-06-10|1979-04-17|Eocom Corporation|Electrophotographic apparatus and method for producing printing masters|
    US4322161A|1980-03-03|1982-03-30|Mohr Edward L|Stripper's table and method of compositing lithographic work pieces|
    DE3012815A1|1980-04-02|1981-10-08|Hoechst Ag, 6000 Frankfurt|DEVICE FOR TRANSPORTING PRINTING FORMS|
    DE3012761A1|1980-04-02|1981-10-08|Hoechst Ag, 6000 Frankfurt|DEVICE FOR THE INPUT AND TRANSPORT OF PRINTING FORMS|
    DE3025201A1|1980-07-03|1982-01-28|Hoechst Ag, 6000 Frankfurt|DEVICE FOR THE TRANSPORT AND POSITIONING OF PRINTING PLATES|
    DE3033706A1|1980-09-08|1982-04-29|Hoechst Ag, 6000 Frankfurt|DEVICE FOR LIFTING, GRIPING AND TRANSPORTING PRINT PLATES|
    DE3122321A1|1981-06-05|1982-12-23|Hoechst Ag, 6000 Frankfurt|PULL-IN AND TRANSPORT DEVICE FOR PRINTING FORMS|
    CA1215412A|1981-07-29|1986-12-16|Klaus-Peter Schoen|Suction device for holding plates|
    DE3137786A1|1981-09-23|1983-03-31|Hoechst Ag, 6230 Frankfurt|TEMPLATE HOLDER FOR A PRINT PLATE PROCESSING DEVICE|
    JPH0419544Y2|1982-03-16|1992-05-01|
    US4602866A|1984-06-19|1986-07-29|Iwatsu Electric Co., Ltd.|Exposure device for platemaking apparatus|
    DE3442755A1|1984-11-23|1986-05-28|Hoechst Ag, 6230 Frankfurt|DEVICE FOR ELECTROPHOTOGRAPHIC PRODUCTION OF PRINTING FORMS|
    DE3683574D1|1985-09-27|1992-03-05|Hoechst Ag|LIGHTING DEVICE IN A PROJECTION COPIER.|
    JPS62117885U|1986-01-16|1987-07-27|
    US5012555A|1988-09-28|1991-05-07|Byers Thomas L|Kit for making a phototool|
    US5014087A|1988-09-28|1991-05-07|Byers Thomas L|Phototool with hinge assembly|
    DE4237531A1|1992-11-06|1994-05-11|Friebel Jens P Dipl Ing|Automatic positioning system for offset printing plate prodn. - has travelling mounting plate for master originals and movable printing plate carrier for multi-original large format exposure|
    DE9313363U1|1993-09-06|1994-01-13|Sixt Hans Gmbh Feinmech|Lighting device for direct platesetters|
    US6457414B1|1999-09-17|2002-10-01|Fuji Photo Film Co., Ltd.|Printing plate discharging method and printing plate discharging device|
    USD702245S1|2012-01-11|2014-04-08|Victor Susman|Scanning frame|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2452979A|DE2452979C2|1974-11-08|1974-11-08|Lighting device in a projection copier|
    [返回顶部]