| 主权项 |
1. A light source device comprising:
a light source section having a plurality of light sources, wherein each of the light sources emits a radial light beam, a divergence of the radial light beam in a first direction is greater than a divergence of the radial light beam in a second direction perpendicular to the first direction, the light sources are arranged so as to form a plurality of light source columns parallel to each other and extending in the first direction, when denoting a pitch of the light sources in the first direction by P1, and a pitch of the light source columns by P2, P1 is larger than P2, and when denoting a divergence angle of the radial light beam in the first direction by θ⊥, and a divergence angle of the radial light beam in the second direction by θ∥, the following formula:
tan θ∥/tan θ⊥≦P2/P1<1.0is fulfilled. |
