Patent ID: 8094179
Filing Date: 2012-01-10
Classification: B41J,G02B

Abstract:
1. A light source device comprising: a light source; a splitting element that is arranged on an optical path of a light beam output from the light source and splits the light beam into a first light beam and a second light beam; a first opening plate that is arranged on an optical path of the first light beam split by the splitting element, has a first opening portion, and shapes the first light beam; and a second opening plate that is arranged on an optical path of the second light beam split by the splitting element, has a second opening portion having a shape different from a shape of the first opening portion, and shapes the second light beam, wherein states of light beams entering the first opening plate and the second opening plate are different from each other, and relationships |(θ in relation to a first direction and a second direction that are orthogonal to each other in a plane orthogonal to a traveling direction of a light beam output from the light source, θ θ θ