发明名称 |
HIGH INTENSITY LIGHT SHUT-DOWN CIRCUIT FOR NIGHT VISION GOGGLE |
摘要 |
<p>A circuit for automatically removing battery power from a night vision goggle (10) upon its detachment from a headgear (12) or when subjected to excessive light. A magnet (34) on the headgear (12) is magnetically coupled to a magnetic reed switch (36) fixed to the goggle (10). On detachment of the goggle (10) from the headgear (12), the reed switch (36) switches battery current to a goggle location monitor (75) for drilling on/off control logic (79) to remove power from an image intensifier tube (40). A high intensity light monitor (80) senses when the ambient light exceeds a predefined intensity, for a predetermined period of time, and also drives the control logic (79) to open a switch (86) in series with the battery (38) and the image intensifier tube (40). A low voltage monitor (82) provides a visual indication (84) of reduced battery voltages.</p> |
申请公布号 |
GR3002702(T3) |
申请公布日期 |
1993.01.25 |
申请号 |
GR19910401267T |
申请日期 |
1991.09.12 |
申请人 |
VARO, INC. |
发明人 |
KASTENDIECK, WILLIAM A.;LEE, DARRELL E. |
分类号 |
G02B23/12;H01J29/98;(IPC1-7):H01J29/98;H01J31/50;F41G1/32 |
主分类号 |
G02B23/12 |
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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