초록 ▼

A portable light for emergency illumination which is activated in response to the sound emitted by a smoke alarm device, which light has an efficient and reliable battery conserving circuit. The present light includes a switch interconnecting a battery and a light bulb for selectively activating the

A portable light for emergency illumination which is activated in response to the sound emitted by a smoke alarm device, which light has an efficient and reliable battery conserving circuit. The present light includes a switch interconnecting a battery and a light bulb for selectively activating the light bulb and a circuit interconnecting a microphone and the switch for selectively activating the switch in response to a smoke alarm signal. A strobe circuit interconnects the source of power and the circuit for periodically activating the circuit which, therefore, draws power for only a small fraction of the time.

대표청구항 ▼

A light activated by the sound signal of a smoke alarm comprising: a microphone; a light bulb; a source of power; switch means interconnecting said source of power and said light bulb for selectively activating said light bulb; circuit means interconnecting said microphone and said switch means for

A light activated by the sound signal of a smoke alarm comprising: a microphone; a light bulb; a source of power; switch means interconnecting said source of power and said light bulb for selectively activating said light bulb; circuit means interconnecting said microphone and said switch means for selectively activating said switch means in response to a smoke alarm sound signal; and strobe means interconnecting said source of power and said circuit means for periodically activating said circuit means.