发明名称 |
Diffuse illumination electronic flash - has combination of direct and variable flashes simultaneously fired and mutually compensated |
摘要 |
<p>The electronic flash gun attachment is for a camera in which two discharge tubes are used; one (17) on the main gun housing and one (19) on a variable geometry head (12). The variable flash is used for a bounce effect, with any loss in illumination compensated for by the direct view flash. The gun is used for indoor exposures and the combination of the two flashes provides a more diffuse and shadowless illumination. The two discharge tubes are fired using a capacitative discharge with a quench signal when the integral photocell (15) has monitored sufficient subject illumination. The electronic circuit includes a quench control stage with a capacitor in parallel with a resistor to cut off the illumination power after a specified interval.</p> |
申请公布号 |
NL7900271(A) |
申请公布日期 |
1980.07.15 |
申请号 |
NL19790000271 |
申请日期 |
1979.01.12 |
申请人 |
FUJI KOEKI CORPORATION EN YOSHIYUKI TAKEMATSU BEIDE TE TOKIO. |
发明人 |
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分类号 |
G03B15/05;(IPC1-7):03B15/03;05B41/32 |
主分类号 |
G03B15/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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