Image reading device, image reading method, and light source...

Details Image reading device, image reading method, and light source... Image reading device, image reading method, and light source...

2005-07-19

2005-07-19

Lee, Cheukfan (Department: 2622)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S509000, C358S474000, C358S505000, C313S607000, C362S260000, C362S263000

Reexamination Certificate

active

06919974

ABSTRACT:
The image reading device of the present invention reads images by using a visible light and an invisible light that are generated by a single light source. The fluorescent lamp is provided with a pair of internal electrodes and a pair of external electrodes. It generates a visible light with a higher intensity than an infrared light when switching a feeder circuit on to generate a discharge between the external electrodes. On the other hand, it generates an infrared light with a higher intensity than a visible light when switching another feeder circuit on to generate a discharge between the internal electrodes. Therefore, the fluorescent lamp has a reading mode using the visible light, and a reading mode using the infrared light. And, a lamp controller selectively switches the emission mode of the fluorescent lamp.

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patent: 407272672 (1995-10-01), None

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