Image reading apparatus for selectively illuminating a first object and a second object by the same light beam and selectively detecting imaged image information therefrom

An image reading apparatus comprising:

• illuminating means for selectively illuminating a first object and a second object different in a region to be illuminated from the first object, said illuminating means having at least one optical element which is arranged in an optical path for illuminating the second object and which has anisotropy in converging/diverging properties, the first object and the second object being selectively illuminated by a same light beam generated from said illuminating means;
• photoelectric converting means;
• first imaging means for imaging image information of the first object on said photoelectric converting means;
• second imaging means for imaging image information of the second object on said photoelectric converting means, said second imaging means being arranged in an optical path different from an optical path of said first imaging means;
• and
• means for effecting relative displacement of the first and second object and said photoelectric converting means.

An image reading apparatus comprising:

• illuminating means for selectively illuminating a first object and a second object different in a region to be illuminated from the first object, said illuminating means having at least one respective optical element which is arranged in each optical path for illuminating the first object and the second object and has anisotropy in converging/diverging properties, the first object and the second object being selectively illuminated by a same light beam generated from said illuminating means;
• original support means for supporting the first and second objects;
• photoelectric converting means;
• first imaging means for imaging image information of the first object on said photoelectric converting means;
• second imaging means for imaging image information of the second object on said photoelectric converting means, said second imaging means being arranged in an optical path different from an optical path of said first imaging means;
• and
• means for displacing said original support means.

An image reading apparatus comprising:

• illuminating means for illuminating a first object and a second object different in a region to be illuminated from the first object, the first object and the second object being selectively illuminated by a same light beam generated from said illuminating means;
• first imaging means for imaging image information of the first object;
• second imaging means for imaging image information of the second object, said second imaging means being arranged in an optical path different from an optical path of said first imaging means;
• and
• detection means for selectively detecting the image information of the first object and the image information of the second object.