发明授权
US09273848B2 Light source unit having reflecting substances with higher and lower reflectivity for light of non-visible light wavelengths and image reading device 有权
光源单元具有对于不可见光波长的光和图像读取装置具有较高和较低反射率的反射物质

Light source unit having reflecting substances with higher and lower reflectivity for light of non-visible light wavelengths and image reading device
摘要:
The light source unit comprises a light source emitting visible light and light of a non-visible wavelength; a rod-like light guide at the end of which the light source is provided and within which incident light from the light source is propagated in the long axis direction; a reflector that is linear along the long axis direction and provided on the contour surface of the light guide; and a support member encompassing the reflector and light guide, having a given width in the direction perpendicular to the long axis direction, and provided with an opening extending along the long axis direction. The reflector and support member are formed by a reflecting material containing a substance reflecting the light of a non-visible light wavelength and reflecting the visible light and light of a non-visible light wavelength.
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