| 摘要 |
PROBLEM TO BE SOLVED: To provide a light source device that efficiently emits light with uniform lightness to a subject within a minute distance photographing range and satisfactorily performs minute-distance photographing by configuring the device such that the angle at which the light of a light source is projected can be varied according to the distance of a subject.SOLUTION: The light source device includes: an inner cylindrical body 10, which is an annular cylindrical member; a support 20 set at one end of the inner cylinder 10; a plurality of angle-variable light source modules 30 having the light source (a plurality of light emitting diodes 331), annularly set respectively on the leading-end side of the support 20, and able to vary the angle of the projecting direction of light emitted by the light source; and driving mechanisms 40, 50, and 60 disposed on the outside of the inner cylinder 10 for varying the angle of the projecting direction of light emitted by the light source by driving in conjunction with at least one of the angle-variable light source modules 30. |
