Pre-developed image for formed metal box printing - uses single developed conic lens pierced through axis to provide anamorphic image,申请号FR19790008682-传众专利搜索

Pre-developed image for formed metal box printing - uses single developed conic lens pierced through axis to provide anamorphic image

申请公布号：FR2453432(A1)

申请号：FR19790008682

申请日期：1979.04.05

申请公布日期：1980.10.31

申请人：

FEREMBAL

发明人：JEAN-CLAUDE ANDRE, LOUIS MARIE VINCENT, BERNARD OTHENIN ET GEORGES MOURAND

分类号：G03B15/00;G03F1/00

主分类号：G03B15/00

摘要：The optical element (10) providing the predeveloped image is in the form of a cone, its external surfaces (11) being parabolic. This cone has a hole (12) through its optical axis (15), the form of the hole being the same as the metal box being produced. The box is introduced into the hole and a light source provided. This may be inside the hole, if the master is transparent; if it is opaque, the light source is external. The photographic camera has its objective (13) on the optical axis and provides a negative of the predeveloped image.