Lamp unit for vehicle

A lamp for a vehicle, said lamp comprising a plurality of lamp units housed in a lamp chamber, said plurality of lamp units comprising:

• a first lamp unit of a projector type, including a substantially transparent projection lens on an optical axis, a first light emitting element positioned at a rear side of said projection lens, and a reflector covering an upper side of said first light emitting element to direct emitted light in a forward direction toward said projection lens;
• a plurality of second lamp units, each comprising a second light emitting element that directs light backwards to a translucent member having a reflecting surface that receives and reflects said emitted light from the second light emitting element towards an irradiating surface of said translucent member and in a forward direction of the lamp unit, including,
• a first one of said second lamp units having a concave shape of said reflecting surface and formed by a hyperbola such that a virtual image of light is formed at a focal point of a hyperboloid of revolution that is conjugate with said reflecting surface, wherein said irradiating surface has a convex shape formed by an ellipse having an eccentricity that is reciprocal of a refractive index of the translucent member,
• a second one of said second lamp units, wherein said irradiating surface is a substantially elliptical cylindrical or cylindroid surface and said reflecting surface is substantially concave and formed by a hyperbola such that a virtual image of light is formed at a focal point of a hyperboloid of revolution that is conjugate with said reflecting surface, and
• a third one of said second lamp units, wherein wherein said irradiating surface is a substantially elliptical cylindrical or cylindroid surface and said reflecting surface is a substantially hyperbolic cylindrical surface.