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1. 发明公开

EP0398006A3 Vacuum blanket 失效
标题翻译：真空黑色
公开(公告)号：EP0398006A3
公开(公告)日：1992-03-18
申请号：EP90106339.6
申请日：1990-04-03
申请人： nuArc Company, Inc.
发明人： Meacham, Kirby G. B.
IPC分类号： G03B27/20
CPC分类号： G03B27/20
摘要： A vacuum blanket (20) for holding a sensitive sheet of material (24) in precise registration with a film master (22) against a rigid transparent plate (26) includes a blanket (30) of thin, flexible material having at least one vacuum port (40) therein and an inside face opposing the rigid plate and adapted for biasing the sensitive sheet and film master toward the rigid plate in precise registration with one another. A flexible perimeter seal (34) is provided around the edges of the blanket for sealing off a vacuum chamber (32) established between the blanket and the plate when air is withdrawn through the vacuum port. A bladder (52) of thin, flexible sheet material is secured to the outer surface of the blanket with a plurality of spaced apart seams (56) forming a plurality of separate, inflatable air chambers (60) on the outside surface of the blanket. An inflation port (70) is provided in the bladder for directing air under pressure to inflate the air chambers and thereby create a plurality of induced bleed passages (80) formed along the plurality of seams by a slight amount of movement of the blanket, sensitive sheet and film master away from the rigid plate. The bleed passages aid in rapidly evacuating the entire surface area of the vacuum chamber when air is initially withdrawn through the vacuum port and the bleed passages are then diminished when pressurized air is exhausted so that the sheets are pressed flat and held tightly in registration against the glass plate during an exposure cycle.
摘要翻译：用于将敏感的材料片（24）保持在与胶片母版（22）精确对准抵靠刚性透明板（26）的真空毯（20）上，包括具有至少一个真空的薄的柔性材料的毯子（30）端口（40）和与刚性板相对的内表面，并且适于将敏感片材和胶片母版彼此精确对准地朝向刚性板偏压。在毯子的边缘周围设置柔性周边密封件（34），用于当通过真空端口抽出空气时密封建立在橡皮布和板之间的真空室（32）。薄的柔性片状材料的囊（52）用多个间隔开的接缝（56）固定在毯子的外表面上，所述接缝在毯子的外表面上形成多个分开的，可充气的空气室（60）。在气囊中设置充气口（70），用于在压力下引导空气以使空气室膨胀，从而产生多个诱导的排放通道（80），所述排出通道沿着所述多个接缝通过所述毯子的微量移动而形成，敏感片材和胶片主人远离刚性板。当空气最初通过真空端口抽出时，排放通道有助于快速排空真空室的整个表面区域，并且当压缩空气排出时，排放通道然后减小，使得片材被压扁并紧紧地保持与对准玻璃板在曝光周期。

2. 发明公开

EP0414994A3 Overhead exposure unit 失效
标题翻译： OVERHEAD曝光单元
公开(公告)号：EP0414994A3
公开(公告)日：1992-04-08
申请号：EP90106341.2
申请日：1990-04-03
申请人： nuArc Company, Inc.
发明人： Leonhart, Charles J. , Meacham, Kirby G.B.
IPC分类号： G03B27/04 , G03B27/16 , G03B27/32
CPC分类号： G03B27/04 , G03B27/16
摘要： An overhead exposure unit (10) includes a light source (18) for exposing sheets of light sensitive material carried on a supporting table (12). The light source is mounted at a fixed elevation above a floor (16) or other surface and a support system (64) is provided for moving the film support table up and down beneath the light source to provide the desired distance between the light source and the film for making plates or other photographic reproductions. The film support table is movable between a convenient working level and is raised or lowered to the selected level to provide a desired spacing or distance between the light source and the film while controlled light exposure takes place.
摘要翻译：顶置曝光单元（10）包括用于曝光承载在支撑台（12）上的感光材料片的光源（18）。光源安装在地板（16）或其他表面上方的固定高度处，并且提供支撑系统（64）以用于在光源下方向上和向下移动胶片支撑台，以在光源和制作电影片或其他摄影复制品。薄膜支撑台可以在方便的工作水平之间移动并且被升高或降低到所选择的水平，以在光源和薄膜之间提供期望的间隔或距离，同时进行受控的曝光。

3. 发明公开

EP0418459A3 Overhead light exposure apparatus 失效
标题翻译： OVERHEAD LIGHT EXPOSURE APPARATUS
公开(公告)号：EP0418459A3
公开(公告)日：1992-03-11
申请号：EP90106335.4
申请日：1990-04-03
申请人： nuArc Company, Inc.
发明人： Leonhart, Charles J.
IPC分类号： G03B27/16 , G03B27/04
CPC分类号： G03B27/20 , G03B27/16
摘要： An overhead light exposure unit (30) for making copies on pre-sensitized sheets from images on film includes a base (32) supporting a vacuum blanket (14) for pressing the sheets and film together against a transparent panel (40). The transparent panel is mounted in a frame (38) that is pivotally secured (42) to the base for movement between a closed horizontal position for making copies and an upwardly tilted, open position for unloading and loading film, sheets and media into place. A light source (60) is positioned above the panel for directing controlled, high intensity light downwardly through the panel to reproduce film images on the presensitized sheets held in place by the vacuum blanket. A support system (70, 72) is provided for holding the light source in an exposure position spaced directly above the transparent panel for directing controlled intensity light downwardly through the panel to reproduce an image on a silk screen, sheet or film held in place by the vacuum blanket. The support system is operative to move the light source away from the exposure position to an open position to afford better access to and viewing of the working space above the horizontal position of the vacuum blanket for loading and unloading film media, etc., when the frame is in an open position. The light source is maintained within a space above the base defined within an upwardly extending periphery thereof even in the open position and the exposure distance between the light source and the film sheets is minimized when the light source is in the exposure position to reduce the exposure time interval required.
摘要翻译：一种用于在胶片上的图像上在预感光片上进行复印的顶置式曝光单元（30）包括：支撑用于将片材压合在一起的透明板（40）的真空层（14）的底座（32）。透明面板安装在框架（38）中，该框架（38）枢转地固定（42）到基座，用于在用于复印的封闭水平位置和向上倾斜的打开位置之间移动，以将膜，片材和介质装载到位。光源（60）位于面板上方，用于将受控的高强度光线向下通过面板，以通过真空覆盖层在被保持在原位的片材上再现胶片图像。提供支撑系统（70,72），用于将光源保持在透明面板正上方的曝光位置，用于将受控强度的光线向下通过面板，以通过屏幕，片材或薄膜上的图像再现在通过真空毯。支撑系统可操作以将光源远离曝光位置移动到打开位置，以便在真空吸尘器的水平位置上方更好地进入和观察工作空间，以便加载和卸载胶片介质等，当框架处于开放状态。即使在打开位置，光源也保持在位于其向上延伸的周边内部的基座之上的空间中，并且当光源处于曝光位置以减少曝光时光源和胶片片之间的曝光距离最小化所需的时间间隔。

4. 发明公开

EP0418459A2 Overhead light exposure apparatus 失效
标题翻译：顶灯曝光装置
公开(公告)号：EP0418459A2
公开(公告)日：1991-03-27
申请号：EP90106335.4
申请日：1990-04-03
申请人： nuArc Company, Inc.
发明人： Leonhart, Charles J.
IPC分类号： G03B27/16 , G03B27/04
CPC分类号： G03B27/20 , G03B27/16
摘要： An overhead light exposure unit (30) for making copies on pre-sensitized sheets from images on film includes a base (32) supporting a vacuum blanket (14) for pressing the sheets and film together against a transparent panel (40). The transparent panel is mounted in a frame (38) that is pivotally secured (42) to the base for movement between a closed horizontal position for making copies and an upwardly tilted, open position for unloading and loading film, sheets and media into place. A light source (60) is positioned above the panel for directing controlled, high intensity light downwardly through the panel to reproduce film images on the presensitized sheets held in place by the vacuum blanket. A support system (70, 72) is provided for holding the light source in an exposure position spaced directly above the transparent panel for directing controlled intensity light downwardly through the panel to reproduce an image on a silk screen, sheet or film held in place by the vacuum blanket. The support system is operative to move the light source away from the exposure position to an open position to afford better access to and viewing of the working space above the horizontal position of the vacuum blanket for loading and unloading film media, etc., when the frame is in an open position. The light source is maintained within a space above the base defined within an upwardly extending periphery thereof even in the open position and the exposure distance between the light source and the film sheets is minimized when the light source is in the exposure position to reduce the exposure time interval required.
摘要翻译：一种用于根据胶片上的图像在预先敏化的片材上复印的高架曝光单元（30）包括支撑真空毯（14）的基座（32），用于将片和胶片压在一起抵靠透明面板（40）。透明面板安装在框架（38）中，框架（38）可枢转地固定（42）到底座上，用于在复制的闭合水平位置和向上倾斜的打开位置之间移动，以将胶片，片材和介质装载和装载到位。光源（60）位于面板上方，用于将受控的高强度光向下引导通过面板，以再现由真空毯保持就位的预致敏纸上的胶片图像。提供支撑系统（70,72），用于将光源保持在直接位于透明面板上方的曝光位置中，用于将受控强度的光向下引导通过面板，以在丝网，片材或薄膜上再现通过真空毯。支撑系统可操作地将光源从曝光位置移动到打开位置，以便更好地进入和观察在真空覆盖层的水平位置上方的工作空间，以便当装载和卸载薄膜介质等时框架处于打开位置。即使在打开位置，光源也被保持在限定在其向上延伸的周边内的基座上方的空间内，并且当光源处于曝光位置时光源与薄膜片之间的曝光距离被最小化以减少曝光所需的时间间隔。

5. 发明公开

EP0414994A2 Overhead exposure unit 失效
标题翻译：高架曝光装置
公开(公告)号：EP0414994A2
公开(公告)日：1991-03-06
申请号：EP90106341.2
申请日：1990-04-03
申请人： nuArc Company, Inc.
发明人： Leonhart, Charles J. , Meacham, Kirby G.B.
IPC分类号： G03B27/04 , G03B27/16 , G03B27/32
CPC分类号： G03B27/04 , G03B27/16
摘要： An overhead exposure unit (10) includes a light source (18) for exposing sheets of light sensitive material carried on a supporting table (12). The light source is mounted at a fixed elevation above a floor (16) or other surface and a support system (64) is provided for moving the film support table up and down beneath the light source to provide the desired distance between the light source and the film for making plates or other photographic reproductions. The film support table is movable between a convenient working level and is raised or lowered to the selected level to provide a desired spacing or distance between the light source and the film while controlled light exposure takes place.
摘要翻译：高架曝光单元（10）包括用于曝光承载在支撑台（12）上的光敏材料片的光源（18）。光源安装在地面（16）或其他表面上方的固定高度处，并且提供支撑系统（64）用于在光源下方上下移动胶片支撑台，以提供光源与用于制作印版或其他照片复制品的胶片。胶片支撑台可在方便的工作水平面之间移动，并升高或降低到选定的水平，以在受控曝光发生时在光源和胶片之间提供所需的间隔或距离。

6. 发明公开

EP0398006A2 Vacuum blanket 失效
标题翻译： Vakuumtuch。
公开(公告)号：EP0398006A2
公开(公告)日：1990-11-22
申请号：EP90106339.6
申请日：1990-04-03
申请人： nuArc Company, Inc.
发明人： Meacham, Kirby G. B.
IPC分类号： G03B27/20
CPC分类号： G03B27/20
摘要： A vacuum blanket (20) for holding a sensitive sheet of material (24) in precise registration with a film master (22) against a rigid transparent plate (26) includes a blanket (30) of thin, flexible material having at least one vacuum port (40) therein and an inside face opposing the rigid plate and adapted for biasing the sensitive sheet and film master toward the rigid plate in precise registration with one another. A flexible perimeter seal (34) is provided around the edges of the blanket for sealing off a vacuum chamber (32) established between the blanket and the plate when air is withdrawn through the vacuum port. A bladder (52) of thin, flexible sheet material is secured to the outer surface of the blanket with a plurality of spaced apart seams (56) forming a plurality of separate, inflatable air chambers (60) on the outside surface of the blanket. An inflation port (70) is provided in the bladder for directing air under pressure to inflate the air chambers and thereby create a plurality of induced bleed passages (80) formed along the plurality of seams by a slight amount of movement of the blanket, sensitive sheet and film master away from the rigid plate. The bleed passages aid in rapidly evacuating the entire surface area of the vacuum chamber when air is initially withdrawn through the vacuum port and the bleed passages are then diminished when pressurized air is exhausted so that the sheets are pressed flat and held tightly in registration against the glass plate during an exposure cycle.
摘要翻译：用于将敏感的材料片（24）保持在与胶片母版（22）精确对准抵靠刚性透明板（26）的真空毯（20）上，包括具有至少一个真空的薄的柔性材料的毯子（30）端口（40）和与刚性板相对的内表面，并且适于将敏感片材和胶片母版彼此精确对准地朝向刚性板偏压。在毯子的边缘周围设置柔性周边密封件（34），用于当通过真空端口抽出空气时密封建立在橡皮布和板之间的真空室（32）。薄的柔性片状材料的囊（52）用多个间隔开的接缝（56）固定在毯子的外表面上，所述接缝在毯子的外表面上形成多个分开的，可充气的空气室（60）。在气囊中设置充气口（70），用于在压力下引导空气以使空气室膨胀，从而产生多个诱导的排放通道（80），所述排出通道沿着所述多个接缝通过所述毯子的微量移动而形成，敏感片材和胶片主人远离刚性板。当空气最初通过真空端口抽出时，排放通道有助于快速排空真空室的整个表面区域，并且当压缩空气排出时，排放通道然后减小，使得片材被压扁并紧紧地保持与对准玻璃板在曝光周期。

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