| 摘要 |
The invention concerns a spectral separation component (10) with two faces, a planar front face (11) comprising a dichroic treatment and a rear face (12'). It is intended to be placed downstream from a convergent lens. The rear face (12') has a convex cylindrical surface defined by a generatrix having a set direction that moves perpendicular along an arc of a circle (12) comprising two ends, the plane (13') passing through these two ends and parallel to the generatrix of the cylindrical surface forming a dihedron with the plane of the front face (11), the generatrix of the cylindrical surface being parallel to the apex (14') of the dihedron. |
