Wand lamp control

Details Wand lamp control Wand lamp control

H - Electricity

05

B

315/1, 354/65

H05B 37/02 (2006.01)

Patent

CA 1070371

ABSTRACT OF THE DISCLOSURE A lamp control for a hand-held OCR wand having a photosensor array positioned to sense light reflected into the wand through a reading aperture therein. A lamp is carried by the wand for illuminating the field facing the reading aperture. Recognition means connected to the array produces a control state when no light is reflected onto the array and a timer responsive to the control state is operable after a predetermined time delay to reduce the excitation of the lamp. Timer reset means respon- sive to reset of said control state restores normal lamp excita- tion.

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