发明名称 BAKGRUNDSBELYST VISNINGSANORDNING OCH FOERFARANDE FOER TILLVERKNING AV EN SPRIDNINGSFOLIE FOER EN SAADAN VISNINGSANORDNING
摘要 A background illuminated display arrangement has a housing (1), a display (4) facing the viewer, a lights deflecting unit arranged behind the display (4) and covering the display unit area, and at least one light source (9) illuminating the light deflecting unit from behind. The light deflecting unit consists of a photographically produced transparent scatter film (6) whose photographic coating (8) is illuminated by each light source in the skimming manner of a dark field illumination and which has photographically produced scatter bodies, whose density distribution is inversely proportional to the light intensity distribution across the area of the scatter film (6). The scatter film is produced by exposing a photographic film while the film is in a recording device which imitates the actual illuminating conditions in the display. <IMAGE>
申请公布号 SE9202761(L) 申请公布日期 1993.04.29
申请号 SE19920002761 申请日期 1992.09.24
申请人 TRIUMPH ADLER AG 发明人 MOEHLER R
分类号 G02B6/00;F21V8/00;G02F1/1335;G02F1/13357;G09F9/35 主分类号 G02B6/00
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