发明名称 |
Method and apparatus for the observation of luminous phenomena |
摘要 |
Method and apparatus for the observation of luminous phenomena, especially for the observation of luminous effects excelling in the ambient luminous intensity by their high luminous intensity. By the present invention the above aim is fulfilled by a method and a an apparatus by which light transmission is varied depending on the intensity of the light effect futhermore, variation of light transmission is effectuated by a signal higher than the final control signal. The decrease of light transmission is fast and is in conformity with the intensity of the luminous effect, and lack or failure of external supply do not affect safety of observation.
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申请公布号 |
US4719340(A) |
申请公布日期 |
1988.01.12 |
申请号 |
US19870009618 |
申请日期 |
1987.01.22 |
申请人 |
PALFI, ZOLTAN;FLEDRICH, ISTVAN;KREKACS, SANDOR;BIHARY, SANDER |
发明人 |
PALFI, ZOLTAN;FLEDRICH, ISTVAN;KREKACS, SANDOR;BIHARY, SANDER |
分类号 |
G02F1/17;A61F9/06;G02B27/28;G02C7/16;G02F1/01;G02F1/03;G02F1/13;G05D25/00;(IPC1-7):G01J1/20 |
主分类号 |
G02F1/17 |
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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