发明名称 LIGHT BOX TYPE COMPACT DEVICE FOR VIEWING TRANSPARENT FILMS
摘要 A compact device for viewing transparent films includes a housing (10) containing two linear light sources (15) on two opposite sides of said housing, each of said sources being surrounded by a mask (16) leaving only one light-diffusing opening (17) extending along the whole light emission area of the source in a plane substantially perpendicular to a reading plane (13). Anti-reflective strips (21) provided in a substantially parallel plane to the reading plane in the region of said openings reduce the strong light reflection in the proximity of said sources and ensure a moderate reflection of light on the whole of said reading plane. The anti-reflective strips (21) preferably have a predetermined width substantially equal to one fifth of the width of the reading plane (13).
申请公布号 WO9530980(A1) 申请公布日期 1995.11.16
申请号 WO1995FR00587 申请日期 1995.05.05
申请人 BADET, HENRI-PAUL 发明人 BADET, HENRI-PAUL
分类号 G02B27/02;G09F13/04;G09F13/14 主分类号 G02B27/02
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