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公开(公告)号：EP0095201A1
公开(公告)日：1983-11-30
申请号：EP83200667.0
申请日：1983-05-11
申请人： HELIOPRINT A/S
发明人： Andersen, Steen
CPC分类号： G03B27/80 , G01J1/4219
摘要： A reproduction camera for the production of contact screen prints from an original, said camera comprising a computer which, after feeding in the minimum and maximum optical density of the original, the optical data of the screen used and the required data of the camera and the film, determines a dosage for the main exposure and one or more of the additional exposures to yield a screened print, of which a specific size of the highlight dots and a specific size of the shadow dots correspond exclusively or substantially exclusively to the minimum and maximum optical density of the original, the computer being provided with an adjustable basic screen range regulator for varying the specific main exposure with simultaneously adaption of at least one of the additional exposures in order exclusively or substantially exclusively to continue to reproduce the minimum and maximum optical density of the original with the specific dot sizes.
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公开(公告)号：EP0127913B1
公开(公告)日：1987-03-18
申请号：EP84200635.5
申请日：1984-05-04
申请人： HELIOPRINT A/S
发明人： Andersen, Steen
IPC分类号： G03B27/80
CPC分类号： G01J1/4219 , G03B27/80
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公开(公告)号：EP0095201B1
公开(公告)日：1986-08-27
申请号：EP83200667.0
申请日：1983-05-11
申请人： HELIOPRINT A/S
发明人： Andersen, Steen
CPC分类号： G03B27/80 , G01J1/4219
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公开(公告)号：EP0127913A1
公开(公告)日：1984-12-12
申请号：EP84200635.5
申请日：1984-05-04
申请人： HELIOPRINT A/S
发明人： Andersen, Steen
IPC分类号： G03B27/80
CPC分类号： G01J1/4219 , G03B27/80
摘要： A reproduction camera suitable for at least a main exposure and a non-imagewise additional exposure through a contact screen, is provided with a sensor which measures the light reflected by the original and which on the basis of this measurement corrects the additional exposure via a computer.
In this way the correction for the stray-light, produced at the lens of the camera, is achieved, to get the right exposure- times.
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