Patent ID: 9179030
Filing Date: 2015-11-03
Classification: H04N

Abstract:
1. An image reading device for performing reading by switching between a color mode and a monochrome mode, comprising: a red light source configured to emit red light; a green light source configured to emit green light; a blue light source configured to emit blue light; a white reference plate; a light-amount adjusting section configured to adjust an amount of the red light, an amount of the green light, and an amount of the blue light to be emitted by the red light source, the green light source, and the blue light source, respectively; and a photo-detecting section configured to detect the red light, the green light, and the blue light emitted by the red light source, the green light source, and the blue light source, respectively, wherein the light-amount adjusting section sets a lighting period of each of the red light source, the green light source, and the blue light source for reading in the monochrome mode, the settings being made based on the light-amount adjusting section makes the settings of the lighting periods of the red light source, the green light source, and the blue light source for reading in the monochrome mode, based on