发明名称 Reference card
摘要 The invention concerns a reference card for the use as a reference object concerning light reflection and colour balance in photographing, which reference card has a neutral grey colour and reflects a predetermined amount of light. The back of the reference card provided with a releasable adhesive and that a number of reference cards are assembled in a pad (1), on a sheet (8) or attached to a strip (7) which is stored in a rolled-up position so that the reference cards are protected from light by each other. The invention also concerns a method of manufacturing said inventive reference card, whereby the colour in question of the card is applied by spraying or painting so that it opaquely cover the card.
申请公布号 AU7696500(A) 申请公布日期 2001.04.24
申请号 AU20000076965 申请日期 2000.09.20
申请人 QP CARD AB 发明人 CHRISTER CARLSON
分类号 G01J3/52;G03B43/00;G03C5/02 主分类号 G01J3/52
代理机构 代理人
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