| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a marker light device, which can set the chromaticity value of a marker light within a prescribed rage even when the luminous intensity is changed, and which is especially suitable for an airport. <P>SOLUTION: A marker light ML comprises a marker light main body 10; a light-emitting diode module LemM disposed in the main body 10 so as to mix the visible lights generated from more than one kind of light-emitting diodes 1a, 1b different in light-emitting color and generate to project the marker light; and a light-emitting diode lighting circuit means LC for individually lighting the diodes 1a, 1b of the module LemM in response to the change in the luminous intensity in accordance with a prescribed program at each light-emitting color, and bringing the marker light generated within the prescribed luminous intensity rage into the prescribed chromaticity value range by controlling the diodes 1a, 1b. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
