| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To enable apertures to be formed easily and correctly to be matched with the positions of lenses. <P>SOLUTION: The lens array includes: lens pairs formed by arranging a plurality of at least two lens arrays extended in the longitudinal directions of the lens array 50 in the direction of the optical axis so as to make optical axes of corresponding respective lenses substantially coincide with each other; and a light shielding part 53 which is disposed between the pair of lenses and has a plurality of apertures formed for transmitting light rays. In the cross-section including optical axes of the respective lenses in the width direction of the lens array 50, a distance to the inner circumferential surface of the center side in the width direction of the lens array 50 is set to be shorter than the distance to the inner circumferential surface of the side opposite to the center side in the width direction of the lens array 50. Thus, the apertures can be formed easily and correctly to be matched with the positions of lenses. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
