| 摘要 |
<p>An object is to provide a lamp holder the number of kinds of which, necessary for setting a gap between various optical source lamps, for example, in such a manner that the gap between the plurality of optical source lamps is set to be narrow at the center and set to be wider as it is closer to the end, can be reduced. Three pins (22a, 22b, 22c) for holding the lamp therebetween are provided in a protruding manner on each of the portions close to both ends of a holder substrate (21) of a lamp holder (20) which is attached to a planar lamp holding surface and which supports a plurality of pipe-shaped optical source lamps (5) with a predetermined gap therebetween. The respective pins for holding the lamp therebetween are arranged to be in a positional relation which allows the optical source lamp (5) to pass between any pins. The gap between the optical source lamps (5, 5) held between the pins at the portions close to both ends of the holder substrate (21) is different according to the angle of the rotation of the holder substrate (21) in the lamp housing surface (4a).</p> |
