| 摘要 |
A flashlight for security personnel has a gravity actuated switch for application of electrical power to multiple lamps to enable the projection of light in downward directions to illuminate multicolored working surfaces and to inhibit the projection of light in horizontal and other directions where hostile persons may be watching. The projected light intensity is variable by polarizing optical means and is coordinated with the gravity switch and the user's control so that the initial intensity at turn-on of the flashlight occurs at the lowest projected intensity. The lamp array, contained in a removable cartridge, has multiple light emitters selected for color characteristics, for a fast time decay response on turn-off, and for reduced red and infrared energy emissions. Reversal of battery polarity effects dramatic changes in color or intensity of the projected light. A manual control overrides the automatic gravity switch for projection of light in unrestricted directions while a tactile generator warns the user that light is projected in a high risk direction. Modular contruction of the removable cartridge permits selection of optional lighting arrays and accessories.
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