发明授权
- 专利标题: Lamp assembly having variable focus and directionality
- 专利标题(中): 具有可变焦点和方向性的灯组件
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申请号: US11054900申请日: 2005-02-10
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公开(公告)号: US07220029B2公开(公告)日: 2007-05-22
- 发明人: Stephen A. Bynum , Philip S. Hall
- 申请人: Stephen A. Bynum , Philip S. Hall
- 申请人地址: US MI Southfield
- 专利权人: Federal-Mogul World Wide, Inc.
- 当前专利权人: Federal-Mogul World Wide, Inc.
- 当前专利权人地址: US MI Southfield
- 代理机构: Dickinson Wright PLLC
- 主分类号: B60Q3/02
- IPC分类号: B60Q3/02 ; F21V14/06 ; F21V23/04 ; F21V21/30
摘要:
A lighting assembly (10) is adjustable between flood and spot lighting conditions for selectively illuminating an interior passenger compartment in a motor vehicle. The assembly (10) includes a housing (16) which clamps to a supporting member, such as a headliner (12), via a sleeve (18) interacting with a rotary cam lock (22). An LED light source (26) is orbitally supported within the housing (16) for projecting light in a directionally adjustable manner. A lens (50) is disposed in the light path (28) and is moveable between an extended spot position for task lighting and a retracted flood position for general illumination within the interior compartment. A switch (74) is responsive to movement of the lens (50) into its spot position for automatically energizing the LED (30). The switch (74) opens, thus de-energizing the LED (30) when the lens (50) is returned to its flood condition. A lighting control circuit (78, 78′) is responsive to an override signal, such as from a door switch (80, 80′), for independently activating the light source (26) when the lens (50) is in its flood position. The light source (26) is supported for orbital movement within the housing (16) by a gimbal mechanism which includes an inner gimbal (38) carried in a cross (40). Pintals (42, 44) establish intersecting perpendicular axis (A,B) to accomplish the orbital movement. A latch mechanism (64) cooperates with leaf springs (62) by controlling movement of the lens (50) between its flood and spot conditions by a repeated push impulse applied by the finger of an operator. The switch (74) is incorporated into the leaf springs (62).
公开/授权文献
- US20050174791A1 Lamp assembly having variable focus and directionality 公开/授权日:2005-08-11
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