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 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|