发明名称 |
Portable lighting device |
摘要 |
A portable lighting device according to the present invention includes a battery housing, a light source supported at a first end of the battery housing, and a shroud extending outward from the first end of the battery housing circumferentially around the light source. The shroud is preferably formed of a translucent material having a partially-reflective inner surface for reflecting a portion of incident light emitted from the light source in a forward direction while allowing a portion of the incident light to be transmitted through the shroud and dispersed in peripheral directions. The shroud further preferably includes a diffusing outer surface for diffusing the incident light that is transmitted through the shroud. A shroud is preferably integrally formed with a collar portion as used for threading the integrated head structure onto the battery housing. Additionally, a protective lens cover that may include a collimating lens is also integrally formed in this head structure. Thus, the portable lighting device of the present invention may be constructed with much fewer components and at a much lower cost than conventional flashlights.
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申请公布号 |
US6004003(A) |
申请公布日期 |
1999.12.21 |
申请号 |
US19970941340 |
申请日期 |
1997.09.30 |
申请人 |
EVEREADY BATTERY COMPANY, INC. |
发明人 |
DALTON, DAVID R.;LYNCH, PETER F. |
分类号 |
F21L4/00;F21V5/00;F21V7/00;F21V13/04;(IPC1-7):F21L15/02 |
主分类号 |
F21L4/00 |
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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