Flashlight with automatic light intensity adjustment means

Details Flashlight with automatic light intensity adjustment means Flashlight with automatic light intensity adjustment means

2007-02-15

2008-08-12

Alavi, Ali (Department: 2875)

Illumination

Self powered lamp

Having plural lamp bulbs or lamp sockets

C362S295000, C362S205000

Reexamination Certificate

active

07410271

ABSTRACT:
A flashlight with automatic light intensity adjustment means comprising a flashlight casing, a light source, a switch, a light controlling circuit on a printed circuit board and a power source, wherein a sensor component is attached to the flashlight casing, and the sensor component comprises a sensor casing and an incident light intensity sensor disposed therein, and the sensor is electronically connected to the light source, the switch, the light controlling circuit and the power source, and the light controlling circuit controls electrical current passing through the light source according to intensity of incident light as detected by the sensor so that more current is passed through the light source when a lower intensity of incident light is detected, and less current is passed through the light source when a higher intensity of incident light is detected.

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patent: 5701481 (1997-12-01), Hosaka et al.
patent: 2003/0020617 (2003-01-01), Tice et al.
patent: 2005/0122712 (2005-06-01), Kim

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