发明名称 Multiple photo flash cube - has removable plasticised PVC film in front of each bulb to act as shadow-reducing light-scattering filter
摘要 <p>Photographic multiple flash cube has several flash bulbs arranged upon a carrier; a reflector for each bulb; igniters; and a transparent protective cover for reflectors and bulbs. The protective cover is fitted with a detachable plastics film where it is in front of a bulb with reflector. The film weakens and scatters the power of the flash bulb so that correct and shadow-free illumination of an object to be photographed is ensured even when the distance from the lens is only 1.5-3 m. The film is of plasticised PVC, 45-200 mu thick, and reduces illumination of the object by about 35% (as compared with exposure after it has been removed).</p>
申请公布号 DE2830619(A1) 申请公布日期 1980.01.24
申请号 DE19782830619 申请日期 1978.07.12
申请人 PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN MBH 发明人 KOCHER,GERTRUD,DIPL.-PHYS.DR.
分类号 G03B15/04;(IPC1-7):03B15/04 主分类号 G03B15/04
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