Patent ID: 8070302

Claim:
A laminate type light emitting diode device including a plurality of reflection type light emitting diode units, each unit comprising: a light emitting diode, a dichroic mirror, a lead frame formed of high thermal conductive material to which the light emitting diode is secured, a spacer interposed between the lead frame and the dichroic mirror for adjusting the distance between the light emitting diode and the dichroic mirror for matching the focal position of the dichroic mirror with the arrangement position of the light emitting diode, a metal hollow holder case having high thermal conductivity in which the light emitting diode and the dichroic mirror are arranged so as to face each other, said spacer being separate from said holder case, and a joint member formed of electric insulating material extending from within the holder case of one light emitting diode unit to within the holder case of another light emitting diode unit, wherein the holder case of one reflection type light emitting diode unit is joined to the holder case of another reflection type light emitting diode unit of the plurality of reflection type light emitting diode units so that said reflection type light emitting diode units are stacked and unified into one body to form the laminate type light emitting diode device in which the light from each unit is coaxial and combined.