| 摘要 |
<p>In a housing (10), a recessed part (11) is formed along the longitudinal direction of a head, and a protruding part (13) is formed in the longitudinal direction on both sides in the longitudinal direction of the recessed part (11). A protruding part (24) is formed in the longitudinal direction of the head at the position immediately below an LED chip of a light emitting diode mounting substrate (14) on a bottom of the recessed part (11). The light emitting diode mounting substrate (14) is fixed to the housing (10) at three points of an upper surface of a tip of the protruding part (24), and lower end faces of protruding parts (13) formed on both sides of the recessed part (11). The light emitting diode mounting substrate (14) is placed on a mounting surface (22) which is an upper end face of the protruding part (13) so that the distance from a light emitting point of the LED chip (16) to a lens incident surface of a laminated resin lens array (12) is a specified value.</p> |
