Abstract: In a spread illuminating apparatus including a transparent substrate which has a light reflection pattern with grooves formed to be inclined with respect to an optical axis of a light source, an optical path conversion means comprising grooves and flat portions is formed on a side surface of a light conductive member, where the depth of the grooves increases in proportion to the increase in distance from either of spot-like light sources toward a deepest groove formed at a predetermined position. The deepest groove is formed at a position off the center of the light conductive member by a predetermined distance toward either of the spot-like light sources, whereby the distribution of the amount of light emitted from the light conductive member toward the transparent substrate can be appropriately modified so as to level off the unevenness in brightness on the screen.
Abstract: In a magnetic head, a second leg portion 10b with which a coil is not coupled is connected to a first long side 82 1 (outer-body 8). Since the sectional area (thickness) is made larger in comparison to the conventional technique, thereby the magnetic resistance becomes lower and the read/write efficiency is increased. Since the second leg portion 10b is adapted to be connected to the outer-body 8 and thereby has a great rigidity, even if any shock is applied during assembling or while in use, the second leg portion 10b is prevented from being bent or generating cracks.