发明授权
- 专利标题: Photo flash device
- 专利标题(中): 照片闪光灯设备
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申请号: US616852申请日: 1975-09-25
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公开(公告)号: US4106080A公开(公告)日: 1978-08-08
- 发明人: Hans Karey , Robert Oberheim , Hans-Eberhard Heintke
- 申请人: Hans Karey , Robert Oberheim , Hans-Eberhard Heintke
- 申请人地址: DEX Frankfurt am Main
- 专利权人: Braun Aktiengesellschaft
- 当前专利权人: Braun Aktiengesellschaft
- 当前专利权人地址: DEX Frankfurt am Main
- 优先权: DEX2446024 19740926
- 主分类号: G03B15/05
- IPC分类号: G03B15/05 ; G03B15/02
摘要:
A flash device has a housing, a cylindrical reflector unit mounted in the housing for turning movement about its longitudinal axis, and a flash lamp positioned in the housing so that flashes emitted by the lamp are reflected by the reflector unit when the latter is turned to respective different positions.
公开/授权文献
- US5622894A Process to minimize a seam in tungsten filled contact holes 公开/授权日:1997-04-22